W110 W111 W112 Sedan, BENZ AID - COMMON QUESTIONS AND ANSWERS

Diagnosing starting problem 1980 300D

Last weekend I installed a remanufactured starter motor. The engine turned over fine at first, but on roughly the 6th start-up I heard a loud spinning sound coming from the starter motor that didn't stop once the engine was idling. Also, it didn't stop when I killed the motor and took my key out of the ignition. I had to disconnect the battery to get it to stop. After waiting a few minutes, I reconnected the battery, and started the car successfully on 5 or 6 occasions after that. Now my car won't start at all.

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Diesel Engine Specific Aid

delayed tranny shifting fro 2-3 on 123 1981 300D

I recently purchased 1981 mercedes 300D. I am having trouble with tranny shifting from 2nd-3rd gear. It seems to have a significant delay. The rest of the other gears shift as they should. I would appreciate help with this problem. My other 123 TD 1984 has the same trouble with the same gears except the delay is about half of the 300D.

Chassis Model Number

W123

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Transmission / Suspension Specific Aid

1975 300D Eventual Loss of Power

I have an approximate 45 minute commute to work. At about 30 minutes into the commute I detect a little surging at highway speeds. This has occured over the past few days. Temperatures are in the low 40s. Yesterday, I experienced severe loss of power limiting my highway speeds to 35 MPH. At lunch time drove to dealer with no problem (15 minute ride) with no loss of power (90 MPH). Dealer ordered a fuel filter. On my way home I experienced severe loss of power (worse than the morning commute)to the point of having to stay off the highway.

Chassis Model Number

W115

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Diesel Engine Specific Aid

'85 cam on my '79 300SD head?

In the midst of installing the > $600 worth of stuff I bought off the site :-) and am curious about your take on cam. The '79 300SD had the lowest HP of the 617 turbo run and 85's the highest. Folks on some of the chat boards are suggesting I put an 85 cam and cam tower on the head once I get it back from the shop. Thoughts? that and know where a guy might get a good '85 cam/towers?

Thanks!

Ben near Detroit

Chassis Model Number

W116

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Diesel Engine Specific Aid

87 190E 2.3 Engine 102.985 Replacement pump does not match

I have purchased a replacement water pump and when in the process of installing I noticed the pump has what looks like an extra hose fitting in the 6 oclock position. The hose fitting size I.D. looks to be about 10mm. The original pump does not have this hose fitting.

I reviewed several parts sites concerning this year, model and engine and they all show pictures with this hose fitting in the 6 oclock position. I have pictures to show if necessary.

Do I have the correct water pump?

What is the fitting for?

I thank you in advance for your help.

Bryan

Chassis Model Number

W201

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Gas Engine Specific Aid

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