When to replace the Poly V-Belt on your AUDI A4
Recommended replacement interval for the part category Serpentine belt : 90000 km
Important!
This replacement procedure can be used for:
AUDI A4 Avant (8K5, B8) 1.8 TFSI, AUDI A4 Avant (8K5, B8) 1.8 TFSI quattro, AUDI A4 Avant (8K5, B8) 1.8 TFSI, AUDI A4 Avant (8K5, B8) 2.0 TFSI, AUDI A4 Avant (8K5, B8) 1.8 TFSI, AUDI A4 Avant (8K5, B8) 2.0 TFSI, AUDI A4 Avant (8K5, B8) 2.0 TFSI quattro, AUDI A4 Avant (8K5, B8) 1.8 TFSI quattro, AUDI A4 Avant (8K5, B8) 2.0 TFSI flexible fuel, AUDI A4 Avant (8K5, B8) 2.0 TFSI flexible fuel quattro, AUDI A4 Avant (8K5, B8) 2.0 TFSI, AUDI A4 Avant (8K5, B8) 2.0 TFSI quattro 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 A4 Avant (8K5, B8) and other AUDI models
How to change Serpentine belt on Audi A4 B8 Avant 2.0 TDI – step-by-step instructions for straightforward car repair
Serpentine belt
How to change V-Ribbed Belt Set on Audi A4 B8 Avant 2.0 TDI – step-by-step instructions for straightforward car repair
V-Ribbed Belt Set
Tools
Replacement: serpentine belt – AUDI A4 Avant (8K5, B8). List of the tools you'll need:
Combination spanner #16
Fender cover
Replacement: serpentine belt – AUDI A4 Avant (8K5, B8). AUTODOC recommends:
  • All work should be done with the engine stopped.
Replacement: serpentine belt – AUDI A4 Avant (8K5, B8). Recommended sequence of steps:
  1. Step 1
    Open the bonnet.
    Step 2
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
    Step 3
    Lift the car using a jack or place it over an inspection pit.
    Step 4
    How to change Poly V-Belt on Audi A4 B8 Avant 2007 - free PDF and video manuals
    Pull aside the V-ribbed belt tensioner pulley. Use a combination spanner #16.
  2. Step 5
    How to replace AUDI A4 Avant (8K5, B8) 2.0 TDI 2008 Poly V-Belt - step-by-step manuals and video guides
    Remove the V-ribbed belt.
    Replacement: serpentine belt – AUDI A4 Avant (8K5, B8). Tip:
    Check the condition of the tensioner pulley and idler pulley. Replace them if necessary.
  3. Step 6
    Audi A4 B8 Avant 3.0 TDI quattro 2009 Poly V-Belt replacement: free workshop manuals
    Return the tensioner pulley to its initial position. Use a combination spanner #16.
  4. Step 7
    Changing Poly V-Belt on AUDI A4 Avant (8K5, B8) 2.0 TDI quattro 2010 by yourself
    Install the V-ribbed belt.
    Replacement: serpentine belt – AUDI A4 Avant (8K5, B8). AUTODOC experts recommend:
    Make sure that the V-ribbed belt fits all pulleys snugly.
  5. Step 8
    How to remove AUDI A4 2.0 TDI 2011 Poly V-Belt - online easy-to-follow instructions
    Pull aside the V-ribbed belt tensioner pulley. Use a combination spanner #16.
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DIY AUDI A4 Avant (8K5, B8) Poly V-Belt replacement - online guide
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