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#1
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240D Transmission
I am considering the purchase of a 83 240D with 190k miles.
I am going to look at the car tonight. However, the seller said that he was told that he needs a new transmission in that it is slow to shift, etc. I have seen some posts that suggest that vacuum may be the source of the problem. Does anyone have any insight as to whether it is likely that the transmission is blown vs. a relatively minor repair? Does anyone have a feel for the cost of a rebuilt transmission? Thanks!
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Ralph Burnette 1993 300SD (286k + miles) 2000 SL500 2001 ML320 |
#2
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This car only has vacuum controls to the transmission.
If it shifts from neutral to Drive and Reverse quickly, that's a good sign. If you bury the pedal in the carpet and it shifts through all the gears (at redline) with firm shifts than the problem is likely in the controls, not the transmission itself.
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1983 240D automatic, Orient Red, 174K 1983 240D manual, Biscayne Blue, sold at 341K |
#3
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I too just bought a 240d with a sluggish to shift transmission. Assuming it shift smoothly from neutral to drive, and neutral to reverse, it's probably a control problem. My car shifts at what feels like redline, unless you lift your foor off the throttle anf then it will shift. Mine I found to be the two plastic levers on the kickdown switch mounted on top of the valve cover. The car doesn't know you are accelerating,and doesn't know to downshift becasue the levers are worn to the point where they are inp. It's a 12 dollar fix. I've also ordered a vaccum modulator and the restrictor. I'll soon have spare parts for troubleshooting if you need to borrow them. Chuck, Aiken, SC
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#4
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240D Transmission
Thank you for the advice.
I drove the car tonight. If I accelerate then lift my foot off of the pedal and push it down again, it will shift up. It will also shift out of first when the rpm's are up a bit. I did not try to shift from neutral to drive or reverse. I will have to try that test. However, it did seem fine when I when from park to reverse and reverse to drive. In addition to the transmission and a series of small items, the car feels like it need shocks. More importantly and of greater immediate concern is that there is free play in the steering wheel; probably 1/16 to 1/8 of a rotation. It wasn't so noticable in city driving but it was pretty obvious on the highway. So, if anyone has any insight, I would appreciate it. I will probably start another thread on this one after I do a search. I will be talking to their mechanic on Monday. However, if I decide to go forward, I will have it double-checked by mine. It definitely isn't my 300SD but I confess that I really enjoyed driving it! Thanks to everyone who responded. It is all very helpful information.
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Ralph Burnette 1993 300SD (286k + miles) 2000 SL500 2001 ML320 |
#5
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In both your cases, I suspect you have a vacuum leak resulting in inadequate vacuum to the transmission. This will result in delayed shifting. The "two plastic levers on the kickdown switch mounted on top of the valve cover" are related to the function of the EGR, and do not directly control the transmission. However, those switches may be the source of a vacuum leak which could affect shifting. If you think those switches are leaking, try plugging the vacuum supply to the switches and see if your shifting improves.
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#6
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good chance you can adjust the steering. loosten big lock nut (19mm) and instert allen (6 or 8mm?) and turn anticlockwise til the wheel begins to bind up a bit, then go back til it is free, then you should have improved yourself.
i have found the almost no body knows how to adjust correctly and that the boxes will adjust even with a quarter mil miles. tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#7
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