2014 Audi A7 Sportback Download Service & Repair Manual
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Workshop Manual
Audi A6 2011 ➤
Audi A6 China 2012 ➤
Audi A7 Sportback 2011 ➤
4-cylinder direct injection engine (1.8, 2.0 ltr. 4-valve
TFSI - generation II)
Engine ID
CAE
B
CDN
B
CDZ
A
CHJA
CAE
D
Edition 10.2016
Service
Service Department. Technical Information
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
List of Workshop Manual Repair Groups
Repair Group
00 - Technical data
10 - Removing and installing engine
13 - Crankshaft group
15 - Cylinder head, valve gear
17 - Lubrication
19 - Cooling
21 - Turbocharging/supercharging
24 - Mixture preparation - injection
26 - Exhaust system
28 - Ignition system
Technical information should always be available to the foremen and mechanics, because their
careful and constant adherence to the instructions is essential to ensure vehicle road-worthiness and
safety. In addition, the normal basic safety precautions for working on motor vehicles must, as a
matter of course, be observed.
Service
All rights reserved.
No reproduction without prior agreement from publisher.
Copyright © 2016 Audi AG, Ingolstadt D3E80393881
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Contents
00 - Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1 Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Engine identification number/engine data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1 Safety precautions when working on high-voltage vehicles . . . . . . . . . . . . . . . . . . . . . . . . 2
2.2 Safety precautions when working on the fuel supply system . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Safety precautions when working on vehicles with start/stop system . . . . . . . . . . . . . . . . 9
2.4 Safety precautions when working on the subframe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Safety precautions when using testers and measuring instruments during a road test . . . . 10
2.6 Safety precautions when working on the ignition system . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.7 Safety precautions when working on the cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3 Repair instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Rules for cleanliness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Foreign particles in engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Contact corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4 Routing and attachment of pipes, hoses and wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.5 Installing radiators and condensers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.6 Checking vacuum system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
10 - Removing and installing engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1 Removing and installing engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.1 Removing engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.2 Securing engine to engine and gearbox support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
1.3 Installing engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2 Assembly mountings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
2.1 Exploded view - assembly mountings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
2.2 Supporting engine in installation position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
2.3 Removing and installing engine mountings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
2.4 Removing and installing torque reaction support and cross member . . . . . . . . . . . . . . . . 67
2.5 Removing and installing gearbox mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
3 Engine cover panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
3.1 Removing and installing engine cover panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
13 - Crankshaft group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
1 Cylinder block (pulley end) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
1.1 Exploded view - cylinder block (pulley end) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
1.2 Removing and installing poly V-belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
1.3 Removing and installing tensioner for poly V-belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
1.4 Removing and installing vibration damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
1.5 Removing and installing bracket for ancillaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
2 Cylinder block (gearbox end) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
2.1 Exploded view - cylinder block (gearbox end) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
2.2 Removing and installing drive plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
2.3 Removing and installing sealing flange (gearbox end) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
2.4 Renewing needle bearing in drive plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
3 Crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
3.1 Exploded view - crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
3.2 Crankshaft dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
3.3 Allocation of main bearing shells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
3.4 Measuring axial clearance of crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
3.5 Measuring radial clearance of crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
3.6 Removing and installing sender wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Audi A6 2011 ➤ , Audi A6 China 2012 ➤ , Audi A7 Sportback 2011 ➤
4-cylinder direct injection engine (1.8, 2.0 ltr. 4-valve TFSI - generation II) - Edition 10.2016
Contents i
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
4 Balance shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
4.1 Exploded view - balance shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
4.2 Removing and installing balance shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
4.3 Renewing oil seal for balance shaft (inlet side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
5 Pistons and conrods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
5.1 Exploded view - pistons and conrods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
5.2 Removing and installing pistons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
5.3 Checking pistons and cylinder bores . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
5.4 Separating parts of new conrod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
5.5 Checking radial clearance of conrod bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
15 - Cylinder head, valve gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
1 Timing chain cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
1.1 Exploded view - timing chain cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
1.2 Removing and installing timing chain cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
1.3 Renewing oil seal for vibration damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
2 Chain drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
2.1 Exploded view - camshaft timing chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
2.2 Exploded view - drive chain for balance shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
2.3 Removing and installing bearing saddle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
2.4 Removing and installing camshaft timing chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
2.5 Removing and installing drive chain for balance shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
2.6 Checking valve timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
3 Cylinder head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
3.1 Exploded view - cylinder head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
3.2 Removing and installing cylinder head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
3.3 Checking compression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
4 Valve gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
4.1 Exploded view - valve gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
4.2 Removing and installing camshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
4.3 Removing and installing camshaft control valve 1 N205 . . . . . . . . . . . . . . . . . . . . . . . . . . 197
4.4 Removing and installing valve stem oil seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
5 Inlet and exhaust valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
5.1 Checking valve guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
5.2 Checking valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
5.3 Valve dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
17 - Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
1 Sump/oil pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
1.1 Exploded view - sump/oil pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
1.2 Removing and installing oil level and oil temperature sender G266 . . . . . . . . . . . . . . . . . . 211
1.3 Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
1.4 Removing and installing sump (bottom section) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
1.5 Removing and installing sump (top section) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
1.6 Removing and installing oil pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
2 Engine oil cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
2.1 Removing and installing engine oil cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
3 Crankcase breather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
3.1 Removing and installing oil separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
4 Oil filter/oil pressure switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
4.1 Exploded view - oil filter/oil pressure switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
4.2 Removing and installing oil pressure switch F22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
4.3 Removing and installing oil pressure switch for reduced oil pressure F378 . . . . . . . . . . . . 225
4.4 Checking oil pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Audi A6 2011 ➤ , Audi A6 China 2012 ➤ , Audi A7 Sportback 2011 ➤
4-cylinder direct injection engine (1.8, 2.0 ltr. 4-valve TFSI - generation II) - Edition 10.2016
ii Contents
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
4.5 Removing and installing valve for oil pressure control N428 . . . . . . . . . . . . . . . . . . . . . . . . 226
19 - Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
1 Cooling system/coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
1.1 Connection diagram - coolant hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
1.2 Checking cooling system for leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
1.3 Draining and filling cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
2 Coolant pump/thermostat assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
2.1 Exploded view - coolant pump/thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
2.2 Exploded view - electric coolant pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
2.3 Removing and installing electric coolant pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
2.4 Removing and installing coolant pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
2.5 Removing and installing thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
2.6 Removing and installing toothed belt for coolant pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
2.7 Removing and installing coolant temperature sender G62 . . . . . . . . . . . . . . . . . . . . . . . . 259
2.8 Removing and installing coolant valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
3 Coolant pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
3.1 Exploded view - coolant pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
3.2 Removing and installing coolant pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
4 Radiator/radiator fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
4.1 Exploded view - radiator/radiator fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
4.2 Exploded view - radiator cowl and radiator fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
4.3 Removing and installing radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
4.4 Removing and installing radiator cowl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
4.5 Removing and installing radiator fan V7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
4.6 Removing and installing radiator fan control unit J293 / J671 . . . . . . . . . . . . . . . . . . . . . . 286
4.7 Removing and installing auxiliary radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
21 - Turbocharging/supercharging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
1 Turbocharger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
1.1 Exploded view - turbocharger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
1.2 Removing and installing turbocharger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
1.3 Checking vacuum unit for turbocharger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
2 Charge air system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
2.1 Exploded view - charge air system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
2.2 Exploded view - hose connections for charge air system . . . . . . . . . . . . . . . . . . . . . . . . . . 302
2.3 Removing and installing charge air cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
2.4 Removing and installing charge pressure sender G31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
2.5 Checking charge air system for leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
24 - Mixture preparation - injection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
1 Injection system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
1.1 Overview of fitting locations - injection system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
2 Vacuum system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
2.1 Checking dual non-return valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
2.2 Checking vacuum system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
3 Air cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
3.1 Exploded view - air cleaner housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
3.2 Removing and installing air cleaner housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
4 Intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
4.1 Exploded view - intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
4.2 Removing and installing intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
4.3 Removing and installing throttle valve module J338 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
4.4 Cleaning throttle valve module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
4.5 Checking intake manifold change-over function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Audi A6 2011 ➤ , Audi A6 China 2012 ➤ , Audi A7 Sportback 2011 ➤
4-cylinder direct injection engine (1.8, 2.0 ltr. 4-valve TFSI - generation II) - Edition 10.2016
Contents iii
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5 Injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
5.1 Exploded view - fuel rail with injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
5.2 Removing and installing fuel rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
5.3 Removing and installing injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
5.4 Cleaning injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
6 Senders and sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
6.1 Removing and installing intake air temperature sender G42 . . . . . . . . . . . . . . . . . . . . . . 348
6.2 Removing and installing fuel pressure sender G247 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
6.3 Checking fuel pressure sender G247 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
6.4 Removing and installing air mass meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
7 High-pressure pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
7.1 Exploded view - high-pressure pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
7.2 Removing and installing high-pressure pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
8 Lambda probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
8.1 Exploded view - Lambda probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
8.2 Removing and installing Lambda probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
9 Engine control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
9.1 Wiring and component check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
9.2 Removing and installing engine control unit J623 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
26 - Exhaust system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
1 Exhaust pipes/silencers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
1.1 Exploded view - silencers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
1.2 Separating exhaust pipes/silencers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
1.3 Removing and installing front silencer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
1.4 Stress-free alignment of exhaust system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
1.5 Checking exhaust system for leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376
2 Emission control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
2.1 Exploded view - emission control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
2.2 Removing and installing catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
2.3 Removing and installing exhaust flap control unit J883 . . . . . . . . . . . . . . . . . . . . . . . . . . 384
3 Secondary air system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385
3.1 Exploded view - secondary air system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385
3.2 Removing and installing secondary air pump motor V101 . . . . . . . . . . . . . . . . . . . . . . . . 386
3.3 Removing and installing secondary air inlet valve N112 . . . . . . . . . . . . . . . . . . . . . . . . . . 386
3.4 Removing and installing sender 1 for secondary air pressure G609 . . . . . . . . . . . . . . . . . . 387
28 - Ignition system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
1 Ignition system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
1.1 Exploded view - ignition system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
1.2 Test data, spark plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
1.3 Removing and installing ignition coils with output stages . . . . . . . . . . . . . . . . . . . . . . . . . . 389
1.4 Removing and installing knock sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392
1.5 Removing and installing Hall senders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393
1.6 Removing and installing engine speed sender G28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393
Audi A6 2011 ➤ , Audi A6 China 2012 ➤ , Audi A7 Sportback 2011 ➤
4-cylinder direct injection engine (1.8, 2.0 ltr. 4-valve TFSI - generation II) - Edition 10.2016
iv Contents
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
00 – Technical data
1 Identification
(ARL004955; Edition 10.2016)
⇒ “1.1 Engine identification number/engine data”, page 1
1.1 Engine identification number/engine da‐
ta
Engine number
♦ The engine number (“engine code” and “serial number”) can
be found at the joint between engine and gearbox -arrow-.
♦ Additionally there is a sticker on the toothed belt cover (top)
with engine code and serial number.
♦ Engine codes starting with the letter “C” have four letters (pre‐
viously three letters).
♦ The first 3 characters of the engine code stand for the engine
capacity and the mechanical construction and design. They
are stamped onto the cylinder block together with the serial
number.
♦ The 4th character indicates the power output and torque of the
engine and is determined by the engine control unit.
♦ The engine code can be found on the type plate (in versions
for some countries only) and on the vehicle data sticker and
the engine control unit.
♦ Fitting locations of the type plate (certain countries only) and
the vehicle data sticker ⇒ Maintenance ; Booklet 411 .
For engine data refer to ⇒ Technical data for engines; Rep. gr.
00 ; Overview of engines .
Audi A6 2011 ➤ , Audi A6 China 2012 ➤ , Audi A7 Sportback 2011 ➤
4-cylinder direct injection engine (1.8, 2.0 ltr. 4-valve TFSI - generation II) - Edition 10.2016
1. Identification 1
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
2 Safety precautions
⇒ “2.1 Safety precautions when working on high-voltage vehi‐
cles”, page 2
⇒ “2.2 Safety precautions when working on the fuel supply sys‐
tem”, page 9
⇒ “2.3 Safety precautions when working on vehicles with start/
stop system”, page 9
⇒ “2.4 Safety precautions when working on the subframe”,
page 10
⇒ “2.5 Safety precautions when using testers and measuring in‐
struments during a road test”, page 10
⇒ “2.6 Safety precautions when working on the ignition system”,
page 10
⇒ “2.7 Safety precautions when working on the cooling system”,
page 11
2.1 Safety precautions when working on
high-voltage vehicles
⇒ “2.1.1 Working on high-voltage vehicles”, page 2
⇒ “2.1.2 Performing visual check of high-voltage components and
wires for damage”, page 7
2.1.1 Working on high-voltage vehicles
WARNING
Safety hazard: the engine can start unexpectedly.
Before carrying out general work on a vehicle with high-voltage
electrical system, switch off the ignition and remove the ignition
key from the vehicle.
WARNING
Working on vehicles with high-voltage wiring:
• Do not support yourself or tools on high-voltage wiring or
associated components --> this can damage the insula‐
tion.
• High-voltage wiring must not be excessively bent or
kinked --> this can damage the insulation.
• The round high-voltage connectors are colour-coded with
an external coloured ring and are provided with mechan‐
ical coding or guide lugs. It is important to observe this
coding when joining up the round high-voltage connec‐
tors, otherwise the connectors can be damaged.
Audi A6 2011 ➤ , Audi A6 China 2012 ➤ , Audi A7 Sportback 2011 ➤
4-cylinder direct injection engine (1.8, 2.0 ltr. 4-valve TFSI - generation II) - Edition 10.2016
2 Rep. gr.00 - Technical data
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
DANGER!
Risk of fatal injury if high-voltage components are damaged.
Observe the following when working in the vicinity of high-volt‐
age components or wiring:
♦ It is not permitted to use cutting or forming tools, other
sharp-edged tools or heat sources such as welding, braz‐
ing, soldering, hot air or thermal bonding equipment.
♦ Before starting work, visually inspect the high-voltage
components in the areas involved.
♦ Before working in the engine compartment, visually in‐
spect the power and control electronics for electric drive -
JX1- , electric drive motor - V141- , air conditioner
compressor - V470- and high-voltage wiring.
♦ Before working on the vehicle underbody, visually inspect
the high-voltage wiring and covers.
♦ Before working on the rear section of the vehicle, visually
inspect the high-voltage wiring and the electronics box
with the maintenance connector for high-voltage system -
TW- .
♦ Visually inspect all potential equalisation lines.
Check the following when making the visual inspection:
♦ There must be no external damage on any component.
♦ The insulation of the high-voltage wiring and potential
equalisation lines must not be damaged.
♦ There must be no unusual deformation of the high-voltage
wiring.
♦ All high-voltage components must be identified by a red
warning sticker.
De-energising high-voltage system
DANGER!
High voltage can cause fatal injury.
Danger of severe or fatal injuries from electric shock.
♦ The high-voltage system may only be de-energised by a
suitably qualified person (Audi high-voltage technician).
♦ It must be definitely confirmed that the high-voltage sys‐
tem is de-energised. The system may only be de-ener‐
gised using the vehicle diagnostic tester via “Guided Fault
Finding”.
♦ The qualified person (Audi high-voltage technician) con‐
firms that the system is de-energised and uses the locking
cap - T40262- to ensure that the system cannot be re-
energised. As an additional precaution, the ignition key
and the maintenance connector for high-voltage system -
TW- are then stored in a safe place by the qualified per‐
son.
♦ The qualified person (Audi high-voltage technician) marks
the vehicle by attaching the appropriate warning signs.
Audi A6 2011 ➤ , Audi A6 China 2012 ➤ , Audi A7 Sportback 2011 ➤
4-cylinder direct injection engine (1.8, 2.0 ltr. 4-valve TFSI - generation II) - Edition 10.2016
2. Safety precautions 3
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
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Note
♦ De-energising high-voltage system:
♦ Connect vehicle diagnostic tester.
♦ Select Guided Fault Finding mode
♦ Using the Go To button, select the following menu options in
succession:
♦ Selecting function/component
♦ Body
♦ Electrical system
♦ Self-diagnosis compatible systems
♦ 8C - Hybrid battery management -J840
♦ 8C - Hybrid battery management, functions
♦ 51 - De-energise high-voltage system (Rep. gr. 93)
♦ The system must first be de-energised by an Audi high-voltage
technician before any work is performed on the high-voltage
system ⇒ Electrical system, hybrid; Rep. gr. 93 ; De-ener‐
gising high-voltage system .
♦ The types of work for which the high-voltage system has to be
de-energised are indicated in the instructions for the proce‐
dure. For further information, see ⇒ Electrical system, hybrid;
Rep. gr. 93 ; General warning instructions for work on the high-
voltage system .
Note
♦ The high-voltage system must be de-energised before begin‐
ning any work on components of hybrid vehicles that are
connected to the high-voltage system (e.g. electrically driven
air conditioner compressor).
♦ Work on the air conditioning system of hybrid vehicles that
does not directly affect the high-voltage system (e.g. perform‐
ing pressure test on refrigerant circuit, running Guided Fault
Finding for air conditioner or control unit for air conditioning
compressor - J842- etc.) must only be carried out by "electri‐
cally instructed persons" ⇒ Electrical system, hybrid; Rep. gr.
93 ; General warning instructions for work on the high-voltage
system and ⇒ Vehicle diagnostic tester in “Guided Fault Find‐
ing” mode for air conditioner and battery power regulation .
♦ For certain work on hybrid vehicle components that are instal‐
led near high-voltage system components (e.g. battery cooling
module, expansion valve to air conditioner etc.), the high-volt‐
age system must be de-energised prior to beginning work ⇒
Electrical system, hybrid; Rep. gr. 93 ; De-energising high-
voltage system .
Audi A6 2011 ➤ , Audi A6 China 2012 ➤ , Audi A7 Sportback 2011 ➤
4-cylinder direct injection engine (1.8, 2.0 ltr. 4-valve TFSI - generation II) - Edition 10.2016
4 Rep. gr.00 - Technical data
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Models covered:
- Audi A7 Sportback 2.0L TFSI 7AT (252 HP)
- Audi A7 Sportback 3.0L V6 TFSI Quattro 7AT (333 HP)
- Audi A7 Sportback 3.0L TDI Quattro 7AT (190 HP)
- Audi A7 Sportback 3.0L TDI Quattro 7AT (218 HP)
- Audi A7 Sportback 3.0L V6 TDI 7AT (190 HP)
- Audi A7 Sportback 3.0L V6 TDI 7AT (218 HP)
- Audi A7 Sportback 3.0L V6 TDI Quattro 7AT (272 HP)
- Audi A7 Sportback 3.0L V6 TDI Quattro 8AT (240 HP)
- Audi A7 Sportback 3.0L V6 TDI Quattro 8AT (320 HP)
- Audi A7 Sportback 3.0L V6 TDI Quattro 8AT (326 HP)
- Audi A7 Sportback 3.0L V6 TDI Ultra 7AT (218 HP)
This 2014 Audi A7 Sportback Service & Repair Manual is a comprehensive guide used by Audi technicians and is suitable for both professional mechanics and DIY enthusiasts. It covers all specific models and their variants.
With this auto repair manual, you can take a Do-It-Yourself approach to fix problems on your vehicle. It includes troubleshooting and replacement procedures provided by the manufacturer, along with step-by-step instructions, clear images, and exploded-view illustrations.
Regular maintenance is essential for the durability of your vehicle. This manual provides the manufacturer's recommended troubleshooting charts and replacement procedures, helping you save on repairs, increase reliability, and avoid frequent visits to the repair shop.
This repair manual is a one-stop solution for any weekend DIY'er and professional mechanic regularly maintaining and repairing Audi vehicles, eliminating the need for thick and heavy manuals.
The 2014 Audi A7 Sportback Service & Repair Manual equips you with everything needed to rebuild the engine and replace every component, including wiring diagrams, torque specs, and exploded-view illustrations. It also features troubleshooting charts to quickly identify the cause of any issue based on specific symptoms.
By using this manual, you can save thousands on repairs and maintenance, making it a valuable investment for both DIY enthusiasts and professional mechanics.
Printable: Yes
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