This is a W220 Forum, so there won't be many people who are familiar with a C240.

That being said, I suspect that the problem is that the shift linkage has become disconnected at one end.

 

Did anyone ever figure out this issue? Thread just died. I can’t figure it out I’m having the same problem goes in gear but just revs in drive. If I rev to 3000rpm whole rear vibrates and makes a awful grinding sound in the back of the car it feels. I replaced the conductor plate and TCU because it had fluid still no fix ! Any help ?

 

Sounds as if the differential has failed - that happened to my 2003 S430. Driving down the Interstate, the car suddenly bumped as if I had run over something. A few minutes later, as I was exiting on a long sweeping turn, sudden horrible noises and the car slowed to a crawl. I made it into a parking lot, called my son for a ride home, and locked it up. The next day, took it home on a flat bed. I found an exact replacement differential on eBay for $95 - including shipping half-way across the country. Installation wasn't too bad - problem solved.

For a freaky coincidence - a few months later, the rear differential failed on my wife's 1999 Suburban (over 200,000 miles) within two miles of the same spot on the same Interstate. I just put it in four-wheel-high and drove it home. That one cost about $150 for a junkyard differential locally.

 

2007 s550 all of a sudden lost power. It just stopped going. It will go into gear R/D no problem but it just revs up and doesn’t move. Has anyone figured out what this was? Please any help would be appreciated!

 

any luck man? I have the same exact problem! I had to have it flat bedded hone yesterday it just took a **** and stopped going when I was driving. Now it goes into gear but it just revs up and doesn’t move.

 

What’s the mileage on your car? It’s probably time for a new (or used ) transmission. They usually last 150-200k miles

 

my mileage is still relatively low it’s 72k I’ve never had any issues with the tranny never slipped or banged into gear never ever any issues at all.

 

Some possibilities:
- Transmission failure.
- One of the rubber rings that the W220 uses instead of U-joints has failed, and the transmission is no longer connected to the differential..
- Differential has failed. (Usually noise, as in the post above yours.)
- Rear half-shaft (drive axle) has failed or is disconnected.

Time to actually look at things...

 

nope no noise at all from the car just revs up and doesn’t move.

 

did you or anyone figure this out? Please help! I have same problem was driving engine turned off pulled over to the side of the road engine starts right up I can put it from park to drive to neutral no problem. car locks up in park and won’t move then put it to neutral car can be rolled by pushing it forwards or backwards. Then put it into drive or reverse car just revs and does not move. Please help! Thank you gl450 it’s not shift linkage because it’s going into gears just not moving no strange noises nothing

 

Yea turned out it was multiple things at once for me. I was probably ripped off. Cost me 5500$ yo have transmission rebuilt. The valve body, the ecm bell housing and torque converter all had to be fixed. What I was told was my torque converter went and cycled through the transmission destroying everything else. Sounds like bull **** to me but that’s what I was told and that’s what it cost me! Now here I am over a month later and I have to bring it back again because it’s shifting hard. Very hard.

 

EBGL450,

Some Possibilities:
- Transmission fluid may be very low. (Any traces of oil on bottom or rear of car?)
- Driveshaft or driveshaft flex coupling may have failed.
- Differential may have failed (usually makes noise).
- Rear half-shaft may have failed.
- Transmission may have failed.
-

 

Greetings from Europe. Every owner of a car with an automatic transmission should buy an oil dipstick, because the right oil level in the transmission is the basis for good transmission functionality. An oil dipstick can be purchased in Europe for $ 8 and will save you a lot of money on repairing the transmission. Financially, it is better to buy a different used gearbox than a repair.
What to do if the transmission does not work. Step 1. \ You need to find out why the car is not running - find out where the problem is. Proceed logically.
Step 2. \ In the "P" and "N" positions, try to see if the car will move with your power / the engine can be switched off or started as you wish ... /. If the result is "P" and "N" the same, then only the shift console has failed. If the car moves to "N" but not to "P" = the shift console works. The problem is not here. 3. \ The Driveshaft must rotate in position "D" or "R" / engine running /. If it rotates there is a problem in the differential - it does not transmit power to the AxleShaft. If the DriveShaft does not turn, there is a problem with the transmission. Now you know where the problem is.
If in a differential - buy on ebay used the same Mercedes number. If the number is different = the differential may otherwise be geared, which will change the driving characteristics of the car.
If there is a problem with the transmission. Step 1. \ ALWAYS
- Measure the oil level in the gearbox
-Oil is measured at operating temperature.
ALWAYS with the engine running.
Insert the dipstick as long as you can.
If the oil in the gearbox is cold, the dipstick has a mark for cold oil.
Attention - the difference between cold and warm oil is over 40 mm on the dipstick !!!
Top up with oil
The oil must have the standard Mercedes - MB 236.xx / xx according to the type of gearbox. For example 722.6 = MB 236.14, or gearbox CVT / A + B class / 722.8 = MB 236.20
- if you don't know, use Bevo
Bevo link
Step 2. \ Use Diagnostics to best find out Star Das Xentry why it doesn't work.
If the oil is okay and the car does not move to D or R at all, then there is a 95% problem in Wandler / Hydrometer / - torque transmission from the engine to the automatic transmission.
Wandler can be refurbished.
Sorry for the English - Google Translator.
oil Dipstick link

 

This sounds real similar to the issue I am having with my 2001 E320. When shifter is in Neutral the car actually moves like in reverse. Reverse lights come on when shifter is in Reverse. P, R & D acts like N. I have replaced my shifter hoping that was where the problem was but nothing changed. ANY help would be greatly appreciated.

 

Check to make sure your drive axles are locked in if it’s four wheel drive I recently replaced my drive axle the axle didn’t lock in and I Had same problem I click it in and boom car fine

 

No I have not. I know mine is not the linkage either because I actually got under mine & manual shifted it at the transmission. Does your car also go into reverse gear when the shifter is in neutral also? One thing you could check is the ETC (Electronic Transmission Control), its under the hood, mine was on the passenger side, it was full, well bout ½ full of fluid. I drained & cleaned mine. I read where it could be an issue but it didn't fix mine. Another thing you could check/change is the transmission adapter plug at the transmission. I changed mine & it did not help either. Right now, I am waiting for the transmission filter kit to arrive & if that don't fix it. I do that not know what else that there is for me to try. Let me know if find anything about yours.

 

Hello, I am having the issue of no shift in either gear, i just changed trans oil and put in the same as what came out, after getting the proper dipstick it's way too high, in the middle of figuring out the oil level now.