When to replace the Poly V-Belt on your MERCEDES-BENZ T2
Recommended replacement interval for the part category Serpentine belt : 30000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ T2/LN1 Platform/Chassis 510 (667.001, 667.002), MERCEDES-BENZ T2/LN1 Platform/Chassis 510 (667.001, 667.002) 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 T2/LN1 Platform/Chassis and other MERCEDES-BENZ models
Tools
Replacement: serpentine belt – MERCEDES-BENZ T2/LN1 Platform/Chassis. Tools you'll need:
Drive socket # 13
Drive socket # 17
Ratchet wrench
Fender cover
Replacement: serpentine belt – MERCEDES-BENZ T2/LN1 Platform/Chassis. AUTODOC experts recommend:
  • All work should be done with the engine stopped.
Replacement: serpentine belt – MERCEDES-BENZ T2/LN1 Platform/Chassis. 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
    How to change Poly V-Belt on Mercedes T2 ln1 1986 - free PDF and video manuals
    Unscrew the fastening bolt of the belt tensioner. Use a drive socket #17. Use a ratchet wrench.
  2. Step 4
    How to replace MERCEDES-BENZ T2/LN1 Platform/Chassis 609 D 4.0 (668.001, 668.002, 668.003) 1987 Poly V-Belt - step-by-step manuals and video guides
    Loosen the belt tensioner. Use a drive socket #13. Use a ratchet wrench.
  3. Step 5
    Mercedes T2 ln1 711 D 4.0 (669.301, 669.302, 669.303) 1988 Poly V-Belt replacement: free workshop manuals
    Remove the V-ribbed belt.
    AUTODOC recommends:
    Check the condition of the tensioner pulley and idler pulley. Replace them if necessary.
  4. Step 6
    Changing Poly V-Belt on MERCEDES-BENZ T2/LN1 Platform/Chassis 814 D 4.0 (670.312, 670.313) 1989 by yourself
    Install the V-ribbed belt.
    Replacement: serpentine belt – MERCEDES-BENZ T2/LN1 Platform/Chassis. Tip:
    Make sure that the V-ribbed belt fits all pulleys snugly.
  5. Step 7
    How to remove MERCEDES-BENZ T2 709 D 4.0 (669.000, 669.001, 669.002) 1990 Poly V-Belt - online easy-to-follow instructions
    Tighten the belt tensioner. Use a drive socket #13. Use a ratchet wrench.
    AUTODOC recommends:
    Make sure that the V-ribbed belt is properly tensioned.
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DIY MERCEDES-BENZ T2/LN1 Platform/Chassis Poly V-Belt replacement - online guide
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