2018 Audi Q5L Download Service & Repair Manual
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General InformationBody Repairs,
General Body Repairs
Edition 10.2021
Service
Service Department. Technical Information
Repair Group
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 © 2021 Audi AG, Ingolstadt 001KAH00020
Contents
1 Safety briefing/employee qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.2 Safety precautions when working on the cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Safety precautions when using testers and measuring instruments during a road test . . . . 5
2.4 High-voltage components / electric vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Repair instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Information on handling fine dust, aluminium dust and steel dust . . . . . . . . . . . . . . . . . . . . 6
3.2 Bonding surfaces for self-adhesive components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Secure threaded connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 Identification plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.5 Impact wrenches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.6 Multi-material mix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.7 Extraction systems for steel/aluminium body repair station ("multi-material-mix" workplace)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.8 Battery, power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.9 Air conditioning system / refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.10 Electronic control units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 General notes on body repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Original joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Galvanised body parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 Removing remaining material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.4 New parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.5 Moulded foam inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1 Symbols relating to procedures for separating components . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2 Symbols relating to welding, brazing and soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.3 Symbols relating to rivets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4 Symbols relating to preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.5 Symbols relating to corrosion protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6 Vehicle body construction features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.1 Body structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7 Assessing damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.2 Checking weld seams and aluminium node castings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.3 Load paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.4 Measuring procedures / damage diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.5 Overview of materials used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.6 Passive safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8 Thermal joining techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.1 Resistance spot welding (RP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.2 Shielded arc plug welding (SG plug welding) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8.3 SG continuous seams and stitch weld seams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8.4 MIG soldering/brazing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8.5 Aluminium welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8.6 Laser welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
8.7 Laser soldering/brazing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.8 Replacement joining techniques in repair work (steel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.9 Replacement joining techniques in repair work (aluminium) . . . . . . . . . . . . . . . . . . . . . . . . 37
9 Processing body structure adhesive D 180 004 M2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.1 Preparing bonding surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
General InformationBody Repairs, General Body Repairs - Edition 10.2021
Contents i
10 Cold joining techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
10.1 Rivets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
10.2 Flow-drill screws (FDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
10.3 Clinching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
11 Separating techniques in body welding; areas of application . . . . . . . . . . . . . . . . . . . . . . . . 63
11.1 Drilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
11.2 Saw-cutting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
11.3 Grinding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
11.4 Milling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
12 Surface repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
12.1 Dent removal techniques for sheet steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
12.2 Dent removal procedures for aluminium panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
12.3 Processing metal and aluminium filler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
12.4 Processing unleaded tin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
12.5 Definition of “accurately aligned surface” / handover to paint shop . . . . . . . . . . . . . . . . . . 68
13 Performing straightening work on body structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
13.1 Straightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
13.2 Separating cuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
13.3 Body sub-parts and part sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
14 Corrosion protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
14.1 Corrosion protection for attachments and welded parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
14.2 Cavity sealing agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
15 Plastic repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
15.1 Repairing dents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
15.2 Repairing scratches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
15.3 Repairing cracks and tears (up to a length of 100 mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
15.4 Repairing holes (up to 30 mm diameter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
15.5 Plastic repairs (glass fibre materials) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
16 Glass repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
16.1 Repairing windscreens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
16.2 Special tools, workshop equipment, testers, measuring instruments and other items
required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
16.3 Description of repair work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
17 Thread repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
17.1 Thread repairs for safety-related components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
17.2 Repairing threads for attachment of subframe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
17.3 Helicoil plus Twinsert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
General InformationBody Repairs, General Body Repairs - Edition 10.2021
ii Contents
1 Safety briefing/employee qualifica‐
tion
(AKAH000017; Edition 10.2021)
1.1 Qualification
The vehicle-specific training modules must be completed to en‐
sure that repair work can be performed correctly and reliably in
the workshop.
⇒ Rep. gr. 00; Safety briefing/employee qualification; Qualifica‐
tion
General InformationBody Repairs, General Body Repairs - Edition 10.2021
1. Safety briefing/employee qualification 1
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What's Included?
Lifetime Access
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Print one or all pages of your manual
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Models covered:
- Audi Q5L 2.0L TFSI 7AT (190 HP)
- Audi Q5L 2.0L TFSI 7AT AWD (190 HP)
- Audi Q5L 2.0L TFSI 7AT AWD (252 HP)
This 2018 Audi Q5L Service & Repair Manual is a comprehensive guide used by Audi technicians, providing complete coverage for your specific model and its variants.
Whether you're a professional mechanic or a DIY enthusiast, this manual enables a Do-It-Yourself approach to fixing vehicle problems. It includes troubleshooting and replacement procedures recommended by the manufacturer, along with step-by-step instructions, clear images, and exploded-view illustrations.
While the durability of your vehicle is unquestionable, regular maintenance is essential. Over time, some parts will wear out and require replacement.
Fortunately, this manual equips you with the manufacturer's recommended troubleshooting charts and replacement procedures, helping you save on repairs, increase vehicle reliability, and minimize visits to the repair shop.
Say goodbye to thick and heavy manuals—this repair manual is the go-to solution for weekend DIY’ers and professional mechanics maintaining and repairing Audi vehicles!
The 2018 Audi Q5L Service & Repair Manual provides comprehensive guidance for engine rebuilding, component replacement, wiring diagrams, torque specs, and exploded-view illustrations. Additionally, the manufacturer's troubleshooting charts enable quick identification of issues based on specific symptoms, making it user-friendly even for beginners!
In essence, this 2018 Audi Q5L Service & Repair Manual offers substantial savings on repairs and maintenance, proving its value after the first oil change.
You'll thank us later!
