When to replace the Poly V-Belt on your MERCEDES-BENZ VITO
Recommended replacement interval for the part category V-ribbed belt : 30000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ VITO / MIXTO Box (W639) 115 CDI (639.601, 639.603, 639.605), MERCEDES-BENZ VITO / MIXTO Box (W639) 111 CDI (639.601, 639.603, 639.605), MERCEDES-BENZ VITO / MIXTO Box (W639) 109 CDI (639.601, 639.603, 639.605), MERCEDES-BENZ VITO / MIXTO Box (W639) 109 CDI (639.601, 639.603, 639.605), MERCEDES-BENZ VITO / MIXTO Box (W639) 111 CDI (639.601, 639.603) 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 VITO / MIXTO Box (W639) and other MERCEDES-BENZ models
How to change V-ribbed belt on Mercedes Vito Mixto W639 115 CDI (639.601, 639.603, 639.605) – step-by-step instructions for straightforward car repair
V-ribbed belt
How to change V-Ribbed Belt Set on Mercedes Vito Mixto W639 115 CDI (639.601, 639.603, 639.605) – step-by-step instructions for straightforward car repair
V-Ribbed Belt Set
How to change Water Pump + V-Ribbed Belt Kit on Mercedes Vito Mixto W639 115 CDI (639.601, 639.603, 639.605) – step-by-step instructions for straightforward car repair
Water Pump + V-Ribbed Belt Kit
Tools
Replacement: serpentine belt – MERCEDES-BENZ VITO / MIXTO Box (W639). Tools you might need:
12-point socket # 17
Ratchet wrench
Fender cover
Wheel chock
Replacement: serpentine belt – MERCEDES-BENZ VITO / MIXTO Box (W639). AUTODOC recommends:
  • All work should be done with the engine stopped.
Replacement: serpentine belt – MERCEDES-BENZ VITO / MIXTO Box (W639). Use the following procedure:
  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
    Secure the wheels with chocks.
    Step 4
    Lift the car using a jack or place it over an inspection pit.
    Step 5
    How to change Poly V-Belt on Mercedes Vito Mixto W639 2003 - free PDF and video manuals
    Pull aside the V-ribbed belt tensioner pulley. Use 12-point socket No.17. Use a ratchet wrench.
  2. Step 6
    How to replace MERCEDES-BENZ VITO / MIXTO Box (W639) 115 CDI (639.601, 639.603, 639.605) 2004 Poly V-Belt - step-by-step manuals and video guides
    Remove the V-ribbed belt.
    Replacement: serpentine belt – MERCEDES-BENZ VITO / MIXTO Box (W639). AUTODOC experts recommend:
    Check the condition of the tensioner pulley and idler pulley. Replace them if necessary.
  3. Step 7
    Return the tensioner pulley to its initial position. Use 12-point socket No.17. Use a ratchet wrench.
    Step 8
    Pull aside the V-ribbed belt tensioner pulley. Use 12-point socket No.17. Use a ratchet wrench.
    Step 9
    Mercedes Vito Mixto W639 111 CDI (639.601, 639.603, 639.605) 2005 Poly V-Belt replacement: free workshop manuals
    Install the V-ribbed belt.
    Replacement: serpentine belt – MERCEDES-BENZ VITO / MIXTO Box (W639). Tip from AUTODOC:
    Make sure that the V-ribbed belt fits all pulleys snugly.
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DIY MERCEDES-BENZ VITO / MIXTO Box (W639) Poly V-Belt replacement - online guide
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