How to carry out replacement: Poly V-Belt V 220 CDI (638.294) Mercedes W638
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Change Mercedes W638 V 230 (638.234, 638.294) Poly V-Belt yourself – manuals and video tutorials

How to change serpentine belt on MERCEDES-BENZ V-Class (W638/2) – replacement guide

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When to replace the Poly V-Belt on your MERCEDES-BENZ V-CLASS
Recommended replacement interval for the part category Serpentine belt : 6 year
Important!
This replacement procedure can be used for:
MERCEDES-BENZ V-Class (W638/2) V 200 CDI (638.294), MERCEDES-BENZ V-Class (W638/2) V 220 CDI (638.294) … 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 V-Class (W638/2) and other MERCEDES-BENZ models
How to change Serpentine belt on Mercedes W638 V 220 CDI (638.294) – step-by-step instructions for straightforward car repair Serpentine belt
How to change Serpentine belt on V-Class (W638/2) – tips for proper car maintenance
Serpentine belt for V-Class (W638/2) Diesel (102 hp)
Simple DIY car repair steps – Replacing Serpentine belt on V-Class (W638/2)
Serpentine belt for V-Class (W638/2) Diesel (122 hp)
Tools
Replacement: serpentine belt – MERCEDES-BENZ V-CLASS (638/2). List of the tools you'll need:
Combination spanner #16
3/8" square drive extension bar
Fender cover
Buy tools
Replacement: serpentine belt – MERCEDES-BENZ V-CLASS (638/2). AUTODOC recommends:
  • All work should be done with the engine stopped.
Replacement: serpentine belt – MERCEDES-BENZ V-CLASS (638/2). Take the following steps:
  1. Step 1
    Open the bonnet.
    Step 2
    How to change Poly V-Belt on Mercedes W638 1996 - free PDF and video manuals
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
  2. Step 3
    How to replace MERCEDES-BENZ V-Class (W638/2) V 220 CDI (638.294) 1997 Poly V-Belt - step-by-step manuals and video guides
    Unscrew the fastening bolt of the belt tensioner. Use a combination spanner #16 (2 pieces).
  3. Step 4
    Mercedes W638 V 230 2.3 Turbo Diesel (638.274) 1998 Poly V-Belt replacement: free workshop manuals
    Use a lever of the correct diameter to loosen the tensioner and remove the fastening bolt. Use a 3/8" square drive extension bar.
  4. Step 5
    Changing Poly V-Belt on MERCEDES-BENZ V-Class (W638/2) V 280 2.8 (638.244, 638.294) 1999 by yourself
    Remove the V-ribbed belt.
    AUTODOC recommends:
    Check the condition of the tensioner pulley and idler pulley. Replace them if necessary.
  5. Step 6
    How to remove MERCEDES-BENZ V-CLASS V 200 CDI (638.294) 2000 Poly V-Belt - online easy-to-follow instructions
    Install the V-ribbed belt.
    Replacement: serpentine belt – MERCEDES-BENZ V-CLASS (638/2). Professionals recommend:
    Make sure that the V-ribbed belt fits all pulleys snugly.
  6. Step 7
    How to replace Poly V-Belt on MERCEDES-BENZ V-Class (W638/2) 2001: download PDF manuals and video instructions
    Return the tensioner to its original position and install the fastening bolt. Use a 3/8" square drive extension bar.
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