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How to change serpentine belt on AUDI A6 C4 Avant (4A5) – replacement guide
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Recommended replacement interval for the part category Serpentine belt : 120000 km
Important!
This replacement procedure can be used for:
AUDI A6 Avant (4A5, C4) 2.8 quattro, AUDI A6 Avant (4A5, C4) 2.8 … View more
The steps may slightly vary depending on the car design.
AUDI A6 Avant (4A5, C4) 2.8 quattro, AUDI A6 Avant (4A5, C4) 2.8 … View more
The steps may slightly vary depending on the car design.
This video shows the replacement procedure of a similar car part on another vehicle
All the parts you need to replace – Poly V-Belt for A6 Avant (4A5, C4) and other AUDI models
Serpentine belt
Alternative products

Combination spanner #17
Phillips screwdriver
Flat screwdriver
Fender cover
Replacement: serpentine belt – AUDI A6 Avant (4A, C4). AUTODOC recommends:
- All work should be done with the engine stopped.
Replacement: serpentine belt – AUDI A6 Avant (4A, C4). Use the following procedure:
- Step 1Open the hood.Step 2Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.Step 3Unscrew the fasteners of the air distribution housing assembly. Use a Phillips screwdriver.
- Step 4Remove the air distribution housing assembly.
- Step 5Unscrew the engine cover fastener. Use a flat screwdriver.
- Step 6Remove the engine cover.AUTODOC recommends:Replacement: serpentine belt – AUDI A6 Avant (4A, C4). Do not use excessive force when removing the part as this may damage it.
- Step 7Pull aside the V-ribbed belt tensioner pulley. Use a combination spanner #17.
- Step 8Remove the V-ribbed belt.Replacement: serpentine belt – AUDI A6 Avant (4A, C4). Tip from AUTODOC:Check the condition of the tensioner pulley and idler pulley. Replace them if necessary.
- Step 9Return the tensioner pulley to its initial position.Step 10Install the V-ribbed belt.
- Step 11Pull aside the V-ribbed belt tensioner pulley. Use a combination spanner #17.
- Step 12Place the serpentine belt on the crankshaft pulley.Replacement: serpentine belt – AUDI A6 Avant (4A, C4). Tip:Make sure that the V-ribbed belt fits all pulleys snugly. Make sure that the V-ribbed belt is properly tensioned.
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