2011 Mercedes-Benz ML350 Service & Repair Manual

2006-2008 HVAC Air Compressor, Belt Drives - 164 Chassis TESTING & REPAIR TESTING AND REPAIR WORK: PASSENGER CARS: AIR COMPRESSOR, BELT DRIVES - AR13.00-Z-9113AB ENGINE 113 Remove, install poly-V- belt for compressor ENGINE 113... AR13.21-P-1202RVK Remove, install poly-V- belt for compressor ENGINE 113.990 in MODEL 219.376 AR13.21-P-1202TZ Remove, install poly V- belt ENGINE 112, 113... AR13.22-P-1202B Remove, install poly V- belt ENGINE 112, 113... AR13.22-P-1202BA Remove, install poly V- belt ENGINE 113.964 in MODEL 164.175 AR13.22 - P - 1202GZ Remove, install poly V- belt ENGINE 112, 113... AR13.22-P-1202PV Remove, install poly V- belt ENGINE 112, 113... AR13.22-P-1202R Remove/install poly V- belt ENGINE 113.971 in MODELS 251.075/175 AR13.22-P-1202RT Remove/install poly V- belt ENGINE 113.990 in MODELS 211.076 /276 AR13.22-P-1202RV Remove, install poly V- belt ENGINE 113.967 in MODEL 219.375 AR13.22-P-1202TY Remove, install poly V- belt ENGINE 113.990 in MODEL 219.376 AR13.22-P-1202TZ Remove/install poly-V belt tensioning device ENGINE 112, 113... AR13.25-P-3200B Remove/install poly V- belt tensioning device ENGINE 112, 113... AR13.25-P-3200BA Remove/install poly-V- belt tensioning device ENGINE 113.964 in MODEL 164.175 AR13.25 - P - 3200GZ Remove/install poly-V- belt tensioning device ENGINE 112, 113... AR13.25-P-3200R Removing/installing the poly-V-belt tensioning device ENGINE 113.971 in MODELS 251.075 /175 AR13.25-P-3200RT 2007 Mercedes-Benz ML350 2006-2008 HVAC Air Compressor, Belt Drives - 164 Chassis MERCEDES ML-CLASS 2006-2011 REPAIR MANUAL W164

TESTING AND REPAIR WORK: PASSENGER CARS: AIR COMPRESSOR, BELT DRIVES - AR13.00-Z-9156AB ENGINE 156 TESTING AND REPAIR WORK: PASSENGER CARS: AIR COMPRESSOR, BELT DRIVES - AR13.00-Z-9272AB ENGINE 272 Remove/install poly V- belt tensioning device ENGINE 113.967 in MODEL 219.375 AR13.25-P-3200TY Remove/install poly-V- belt tensioning device ENGINE 113.990 in MODEL 219.376 AR13.25-P-3200TZ Remove/install tensioning device of compressor poly-V-belt ENGINE 113... AR13.25-P-3217RVK Remove/install tensioning device for compressor poly-V-belt ENGINE 113.990 in MODEL 219.376 AR13.25-P-3217TZ Remove/install poly V- belt ENGINE 156 in MODEL 164, 251 AR13.22 - P - 1202GZS Remove/install poly-V belt ENGINE 156 in MODEL 216, 221 AR13.22-P-1202SMG Remove/install poly V- belt ENGINE 156.982 in MODELS 209.377 /477 ENGINE 156.983 in MODELS 211.077 /277, 219.377 AR13.22-P-1202TMG Remove/install poly-V belt tensioning device ENGINE 156 in MODEL 164, 251 AR13.25 - P - 3200GZS Remove/install poly-V belt tensioning device ENGINE 156 in MODEL 216, 221 AR13.25-P-3200SMG Remove/install poly-V belt tensioning device ENGINE 156.982 in MODEL 209.377 /477 ENGINE 156.983 in MODEL 211.077 /277, 219.377 AR13.25-P-3200TMG Remove/install components for belt drive ENGINE 272 in MODEL 204 AR13.20-P-0001CV Remove/install components for belt drive ENGINE 272, 273 in MODEL 164, 251 AR13.20-P-0001GZA Remove/install ENGINE 272, 273 in AR13.20-P-0001SX 2007 Mercedes-Benz ML350 2006-2008 HVAC Air Compressor, Belt Drives - 164 Chassis

TESTING AND REPAIR WORK: PASSENGER CARS: AIR COMPRESSOR, BELT DRIVES - AR13.00-Z-9273AB ENGINE 273 components of belt drive MODEL 221 ENGINE 273 in MODEL 216 Remove/install components of belt drive ENGINE 272, 273 in MODELS 211, 219 AR13.20-P-0001TS Remove/install poly-V- belt guide pulley ENGINE 272, 273 ... AR13.21-P-3350QB Remove/install poly V- belt guide pulley ENGINE 272, 273 in MODEL 230 AR13.21-P-3350RX Remove/install poly V- belt guide pulley ENGINE 272.942 in MODEL 171.454 ENGINE 272.963 in MODEL 171.456 AR13.21-P-3350VA Remove/install poly V- belt ENGINE 272, 273 ... AR13.22-P-1202QB Remove, install poly V- belt ENGINE 272, 273 in MODEL 230 AR13.22-P-1202RX Remove, install poly V- belt ENGINE 272.942 in MODEL 171.454 ENGINE 272.963 in MODEL 171.456 AR13.22-P-1202VA Remove/install poly-V- belt tensioning device ENGINE 272, 273 ... AR13.25-P-3200QB Remove/install poly V- belt tensioning device ENGINE 272, 273 in MODEL 230 AR13.25-P-3200RX Remove/install poly V- belt tensioning device ENGINE 272.942 in MODEL 171.454 ENGINE 272.963 in MODEL 171.456 AR13.25-P-3200VA Remove/install components for belt drive ENGINE 272, 273 in MODEL 164, 251 AR13.20-P-0001GZA Remove/install components of belt drive ENGINE 272, 273 in MODEL 221 ENGINE 273 in MODEL 216 AR13.20-P-0001SX Remove/install components of belt drive ENGINE 272, 273 in MODELS 211, 219 AR13.20-P-0001TS Remove/install poly-V- belt guide pulley ENGINE 272, 273 ... AR13.21-P-3350QB Remove/install poly V- belt guide pulley ENGINE 272, 273 in MODEL 230 AR13.21-P-3350RX 2007 Mercedes-Benz ML350 2006-2008 HVAC Air Compressor, Belt Drives - 164 Chassis

REMOVE, INSTALL POLY V-BELT - AR13.22-P-1202 Remove, install poly V-belt - AR13.22-P-1202GZ ENGINE 113.964 in MODEL 164.175 Fig. 1: Identifying Poly V - Belt Components Courtesy of MERCEDES-BENZ OF NORTH AMERICA. Remove/install poly V- belt ENGINE 272, 273 ... AR13.22-P-1202QB Remove, install poly V- belt ENGINE 272, 273 in MODEL 230 AR13.22-P-1202RX Remove/install poly-V- belt tensioning device ENGINE 272, 273 ... AR13.25-P-3200QB Remove/install poly V- belt tensioning device ENGINE 272, 273 in MODEL 230 AR13.25-P-3200RX Removing Risk of death caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer. AS00.00 - Z - 0010 - 01A Risk of injury caused by fingers being pinched or crushed when removing, installing or aligning hoods, doors, trunk lids, tailgates or sliding roof. Keep body parts and limbs well clear of moving parts. AS00.00 - Z - 0011 - 01A 2007 Mercedes-Benz ML350 2006-2008 HVAC Air Compressor, Belt Drives - 164 Chassis

COOLANT PUMP, COOLANT THERMOSTAT Remove/install poly V-belt - AR13.22-P-1202GZS ENGINE 156 in MODEL 164, 251 1 Open engine hood AR88.40 - P - 1000GZ 2 Remove the left and right intake air duct 3 Remove front engine cover AR01.10 - P - 2405GZ 4 Loosen poly-V-belt (1) and remove To do this turn hexagon (3) at tensioning pulley (2) in an anti- clockwise direction and lock tensioning pulley (2) with pin/drift (4) (diameter 5 mm). Checking 5 Inspect belt pulley sections and tensioning device Check for damage, wear and dirt; replace if necessary. 6 Check guide pulley Replace if necessary. *BA20.10 - P - 1008 - 01C 7 Check poly-V-belt (1) Check poly-V-belt in visible area for wear AP13.22 - P - 1352GZ Install 8 Install poly-V-belt (1) and tighten it. Do not use belt wax or any similar products. Start in numerical order of the relevant running diagram at tensioning pulley (2), refer to: ? Layout diagram of poly-V-belt AR13.22 - P - 3902 - 02GZ Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the running engine Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts. AS00.00 - Z - 0005 - 01A 9 Carry out engine test run 10 Close engine hood AR88.40 - P - 1000GZ Number Designation Engine 113.964/971 BA20.10-P-1008-01C Bolt connecting guide pulley to coolant pump housing 20 2007 Mercedes-Benz ML350 2006-2008 HVAC Air Compressor, Belt Drives - 164 Chassis

Fig. 2: Identifying Poly V - Belt Components Courtesy of MERCEDES-BENZ OF NORTH AMERICA. Removing Risk of death caused by vehicle slipping or toppling off the lifting platform. Align vehicle between columns of lifting platform and position four support plates at lifting platform support points specified by vehicle manufacturer. AS00.00 - Z - 0010 - 01A Risk of injury caused by fingers being pinched or crushed when removing, installing or aligning hoods, doors, trunk lids, tailgates or sliding roof. Keep body parts and limbs well clear of moving parts. AS00.00 - Z - 0011 - 01A 1 Open engine hood Model 164 AR88.40 - P - 1000GZ Model 251 AR88.40-P- 1000RT 2 Remove left and right intake air duct 3 Remove front engine cover Do not tilt front engine cover, but lift upwards vertically otherwise the retaining lugs can break off. 4 Raise vehicle with lifting platform Model 164 AR00.60 - P - 1000GZ Model 251 AR00.60-P- 1000RT 5 Remove lower engine compartment paneling AR61.20 - P - 1105GZ Model 251 AR61.20-P- 2007 Mercedes-Benz ML350 2006-2008 HVAC Air Compressor, Belt Drives - 164 Chassis

1105RT 6 Loosen poly-V-belt (1) and remove The tensioner pulley (2) is more accessible from below. To do this, turn the hexagon (3) at the tensioner pulley (2) in an anti- clockwise direction and lock the tensioning pulley (2) with a pin or drift (4) (5 mm diameter). Checking 7 Inspect belt pulley sections and tensioning device Check for wear, damage or soiling and replace if necessary. 8 Check guide pulley Replace if necessary. *BA13.25 - P - 1003 - 01U *BA13.25 - P - 1004 - 01U *BA13.25 - P - 1005 - 01U 9 Check poly-V-belt (1) Check poly-V-belt in visible range for wear Model 164 AP13.22 - P - 1352GZ Model 251 AP13.22-P- 1352RT Install 10 Install poly-V-belt (1) and tighten it. Do not use belt wax or any similar products. Start in numerical order of the relevant running diagram at tensioner pulley (2), refer to: ? Layout diagram of poly V-belt AR13.22 - P - 3902 - 02AMG Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the running engine Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts. AS00.00 - Z - 0005 - 01A 11 Carry out engine test run 12 Close engine hood Model 164 AR88.40 - P - 1000GZ Model 251 AR88.40-P- 1000RT 2007 Mercedes-Benz ML350 2006-2008 HVAC Air Compressor, Belt Drives - 164 Chassis

BELT TENSIONING DEVICE ROUTING DIAGRAM OF POLY V-BELT - AR13.22-P-3902 Routing diagram of poly V-belt - AR13.22-P-3902-02AMG Fig. 3: Identifying Poly V - Belt Components Location Courtesy of MERCEDES-BENZ OF NORTH AMERICA. Running diagram of poly V-belt - AR13.22-P-3902-02GZ 6-groove single-belt drive, with AC compressor Number Designation Engine 156 BA13.25-P- 1003-01U Guide pulley on coolant pump housing (between power steering pump and guide pulley with grooved channel profile) Nm 20 BA13.25-P- 1004-01U Guide pulley on coolant pump housing (between alternator and smooth guide pulley) Nm 20 BA13.25-P- 1005-01U Guide pulley (between poly-V-belt tensioning device and coolant pump) Nm 20 2007 Mercedes-Benz ML350 2006-2008 HVAC Air Compressor, Belt Drives - 164 Chassis

Fig. 4: Poly V - Belt Running Diagram Courtesy of MERCEDES-BENZ OF NORTH AMERICA. Routing diagram of poly V-belt - AR13.22-P-3902-02VA Shown on engine 272.963 Fig. 5: Routing Diagram Of Poly V - Belt (Shown On Engine 272.963) Courtesy of MERCEDES-BENZ OF NORTH AMERICA. REMOVE/INSTALL POLY-V-BELT TENSIONING DEVICE - AR13.25-P-3200 Remove/install poly-V-belt tensioning device - AR13.25-P-3200GZ ENGINE 113.964 in MODEL 164.175 Fig. 6: Identifying Poly - V - Belt Tensioning Device Components Courtesy of MERCEDES-BENZ OF NORTH AMERICA. Remove/install 2007 Mercedes-Benz ML350 2006-2008 HVAC Air Compressor, Belt Drives - 164 Chassis

BELT TENSIONING DEVICE Remove/install poly-V belt tensioning device - AR13.25-P-3200GZS ENGINE 156 in MODEL 164, 251 Risk of injury caused by fingers being jammed or pinched when removing/installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. When moving components, ensure that no body parts or limbs are within operating range of moving parts. AS00.00 - Z - 0011 - 01A 1 Open engine hood and raise to vertical position AR88.40 - P - 1000GZ 2 Remove the left and right intake air duct 3 Remove front engine cover AR01.10 - P - 2405GZ 4 Partially remove poly-V-belt (2) Only remove poly-V-belt (2) from belt pulley/guide pulleys until tensioning device (3) is accessible. AR13.22 - P - 1202GZ 5 Rotate tensioning device at hexagon (3) in an anti- clockwise direction and lock Lock tensioning device with a pin/drift (5 mm diameter). 6 Remove bolts (1) *BA13.25 - P - 1001 - 01D 7 Remove tensioning device (3) 8 Install in the reverse order Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the running engine Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts. AS00.00 - Z - 0005 - 01A 9 Carry out engine test run Number Designation Engine 113.940/941/942/943/944/945/946/948/960/961/962/963/964/965/966/967/968/9 BA13.25- P-1001- 01D Self- tapping bolt, belt tensioner to timing case cover Thread not pre- tapped Nm 35 Thread pre- tapped Nm 2007 Mercedes-Benz ML350 2006-2008 HVAC Air Compressor, Belt Drives - 164 Chassis

2011 Mercedes-Benz ML350 Service & Repair Manual

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