changing serpentine belt on 190D

Please explain how to change serpentine belt on 1986 190D with 2.5 engine. Need to know how to release tensioner and properly tension new belt.

Thanks,

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BRAD FRANCIS
1986 190D 160,000 mi.
SUMNER, TX

[Benzmac]

This is a sprin type tensioner, so once it is engauged, it is not adjustable. Just use a long extension to hold the plastic lever and take out the 13mm bolt and nut. Then release the lever, thus releasing the tension on the belt. You usually do have to take off the fan for this. And for that you will need a specail tool. (Short 8mm allen and pulley holder.)

Pay alot of attention to the routing of the belt before you remove, for I have seen many on wrong!!

We sell a Service Cd for this model...It is a 201 CD.

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Benzmac:
1981 280GE SWB
1987 16V
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

Brad,

I don't have the special tool he's talking about, but have alot of different type allens. If you want to bring it over this weekend, we can give it a shot if you like. Give me a call.

Larry