When to replace the Poly V-Belt on your MERCEDES-BENZ A-CLASS
Recommended replacement interval for the part category Serpentine belt : 30000 km
This replacement procedure can be used for:
MERCEDES-BENZ A-Class (W169) A 180 (169.032, 169.332), MERCEDES-BENZ A-Class (W169) A 160 (169.031, 169.331), MERCEDES-BENZ A-Class (W169) A 200 TURBO (169.034, 169.334), MERCEDES-BENZ A-Class (W169) A 200 (169.033, 169.333), MERCEDES-BENZ A-Class (W169) A 150 (169.031, 169.331), MERCEDES-BENZ A-Class (W169) A 170 (169.032, 169.332) 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

Replacement: serpentine belt – MERCEDES-BENZ A-CLASS (W169). Tools you might need:
Combination spanner #15
Replacement: serpentine belt – MERCEDES-BENZ A-CLASS (W169). Tip from AUTODOC experts:
  • All work should be done with the engine stopped.
Replacement: serpentine belt – MERCEDES-BENZ A-CLASS (W169). Take the following steps:
  1. Step 1
    Lift the car using a jack or place it over an inspection pit.
    Step 2
    How to change Poly V-Belt on Mercedes W169 2004 - free PDF and video manuals
    Pull aside the V-ribbed belt tensioner pulley. Use a combination spanner #15.
  2. Step 3
    How to replace MERCEDES-BENZ A-Class (W169) A 180 CDI 2.0 (169.007, 169.307) 2005 Poly V-Belt - step-by-step manuals and video guides
    Remove the V-ribbed belt.
    Replacement: serpentine belt – MERCEDES-BENZ A-CLASS (W169). AUTODOC recommends:
    Check the condition of the tensioner pulley and idler pulley. Replace them if necessary.
  3. Step 4
    Mercedes W169 A 150 1.5 (169.031, 169.331) 2006 Poly V-Belt replacement: free workshop manuals
    Return the tensioner pulley to its initial position.
  4. Step 5
    Changing Poly V-Belt on MERCEDES-BENZ A-Class (W169) A 160 CDI 2.0 (169.006, 169.306) 2007 by yourself
    Install the V-ribbed belt.
Comments – 2
  • @user_1250147
    20.11.2022 12:32
    We didn't get help
    Please can you show as a full picture
  • Anna Johnson
    09.12.2022 10:24
    Additional instructions can be found in the video.
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DIY MERCEDES-BENZ A-Class (W169) Poly V-Belt replacement - online guide
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