Mercedes Benz 1985 190D

a service manual will have that info, they cost around 15 bucks and save alot of headaches

I can advice you only this can do in Mercedes dealer workshop, By Mercedes Benz diagnostic computer, you ask them you need to software update and reset your adaptation data in your transmission and engine control units, when you do the transmission you have to do the engine software update too otherwise it can make software clash between two control modules, if software version different, is this information helped you?

Change fluid, check modulator? Very old MB towing any number of things could have happened to that transmission. Could be a vacuum leak.

Your owners manual will tell you, if you don't have one call your local MB dealer service dept and they will tell you.

check fluid level!
then the transmission contol solenoid

CLICK HERE

select your trim level and engine size.

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hello,i have a copy of vacuum diagram,what is your trans.,,manual or automatic ,so i could send to you,ty

AF3 DEXRON®-III Automatic Transmission Fluid
BMW: Power steering use AF3; Models with combined power steering,
hydraulic brake booster, self-leveling suspension system use SLF
Mercedes-Benz: Use only manufacturer approved fluid


Look on the back of the bottle of fluid you are looking to buy, if it does not say is is approved by MB, don't use it.

LUBRICANTS & FLUIDS
Engine Oil
Grade 1......SL
SAE 0W-30 Synthetic Signature Series Oil
Synthetic 5W-40 European Engine Oil
SAE 10W-40 Synthetic High Performance Motor Oil
SAE 5W-30 XL Synthetic Motor Oil
Above 5°F......15W-40, 15W-50
Above -4°F......10W-30, 10W-40, 10W-50, 10W-60
Above 23°F......20W-40, 20W-50

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