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  #1  
Old 08-11-2007, 05:19 PM
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Question Transmission popped into neutral and stays there

Hi,
I have a 1987 W124 300D turbo with automatic transmission. Today the, while I was accelerating to second gear, the transmission seemed to jump into neutral and won't come out of it. The linkage from the stick to the transmission works and is turning the part at the transmission case.

Does anyone have a pdf of this transmission? My guess is that some linkage is disconnected inside the transmission case.

Any guesses about what the problem is?

Thanks

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Colorado Springs, CO
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Old 08-11-2007, 09:52 PM
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yal yal is offline
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Does it go into reverse with no problem?
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Old 08-11-2007, 09:53 PM
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how many miles does the car have? how many miles on the transmission since rebuild?
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1988 300CE 120K RIP(Midnight Blue/Parchment)
1987 300E 202K (Arctic White/Palomino)


Now I see the secret of the making of the best persons. It is to grow in the open air and to eat and sleep with the earth. ~Song of The Open Road
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Old 08-12-2007, 01:56 PM
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Question No reverse, no park, no forward, 20K on transmission

There is no reverse, no park, no forward. The tranny has 20K on it. The car has 250K

Fluid level is good, no leaks. Clean fluid. The car starts fine.

I need a transmission exploded part diagram too. I've rebuilt a GM transmission, but I need to know if there could be an internal linkage problem here.
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Last edited by springsman; 08-12-2007 at 05:35 PM. Reason: car mileage
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  #5  
Old 08-13-2007, 04:36 AM
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20K on a Mercedes remanufactured transmission or what? Mine is screwed-up too. Just under 50K on a rebuild from a mercedes only indy transmission guy here in L.A. I took it to him and he cleaned it all up and and we found a small amount of shavings in the bottom. he adjusted the modulator and its running much better but it wont last long. maybe 2k miles. he didn't think it was slipping and missing from governors or valves but from friction plate wear. Thats what he thought from the first drive around the block before he cleaned and adjusted it. Friction material wear is what he said. Seems simple enough, I guess.
I've seen exploded diagrams somewhere of this transmission. I'll look around online for some.
Good lock.
Jason
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1988 300CE 120K RIP(Midnight Blue/Parchment)
1987 300E 202K (Arctic White/Palomino)


Now I see the secret of the making of the best persons. It is to grow in the open air and to eat and sleep with the earth. ~Song of The Open Road
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  #6  
Old 08-13-2007, 07:32 PM
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Question No slip on transmission

20K on a rebuilt. The friction clutches are fine on this. I don't know how Mercedes does things differently from others, but general troubleshooting for an auto tranny for this problem could be caused by the following:
Manual linkage out of adjustment
valve body or primary regulator faulty
parking lock pawl faulty (not my problem)
torque converter clutch faulty

I'm Still looking for a transmission pdf.
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Old 08-13-2007, 10:39 PM
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Thumbs up Transmission problem solved: broken left axle!

Well I put the car on the jacks today and vuwalla, I found the problem: The left axle broke. That's a whole lot better than a transmission problem!!
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Old 08-14-2007, 01:29 AM
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Good for you. I have to decide what to do with the transmission on my car. Just replaced both front tie rod assemblies today. need to do the simple alignment that I remember was the norm years ago for these cars. I'll do a search for it first. Then figure out what to do with the transmission. You know a lot about them. I don't.

Thanks,
Jason

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1988 300CE 120K RIP(Midnight Blue/Parchment)
1987 300E 202K (Arctic White/Palomino)


Now I see the secret of the making of the best persons. It is to grow in the open air and to eat and sleep with the earth. ~Song of The Open Road
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