stuck in first
Had the same problem 2 years ago and had a flat bed trunk taken to stealer. They said it was the transmission module. It was covered under warranty so I have no clue how much it would cost w/out. Did you purchase an extended warranty?
Don't drive the car in the mean time...
Edit: it sounds like you have a similar problem with this guy
https://mbworld.org/forums/showthrea...e+transmission
Last edited by blueC230K; Jun 17, 2008 at 01:25 PM.
You may get a transmission breakdown by changing old fluid, at least when not changing filter...
Was it mb spec 722.6 fluid?
Have you check it is at proper level?
Any leaking fluid around the electrical connector on the passenger side of the trans pan?
Spilled anything on the console lately?
Have you tried a reset of the ECU and TCU?
reply to all of the above,before taking it anywhere.
ohlord

and before you go into shock....TCU's as in that link are not 3 grand and if yours is bad can be replaced by DIY(you
)

did they use a flushing machine perchance?
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That would take a bit more then 2 hours.And clearing the code is not going to eliminate the problem nor unlock it from 1st gear so he can ignore the issue.
Something is wrong if not the electrical connector leak,the fluid level was improper or they flushed the trans and the accumulated dirt and graphite fouled the sensors.
Get it to the shop to be checked for all of the above and keep your fingers crossed.Maybe it is the shift module failure but coming on the heels of the fluid change would cause one to believe something was not on kilter.
ohlord
Then some component from the old eletronics plate have to be moved over to the new plate. Clean the accessible areas, reassemble and refill fluid.
the input turbine speed sensor is mounted on a plastic plate above the valve body. i think that plate can crack after a while or something like that. i would do a little bit of research and check if you should update any parts while you are there.
did you check the fluid level yet?

sometimes the reset works looks like in his case it did not so off to the shop he go

either level or fitting or tcu or sensor,I will hedge my bets on this one.Probably level.Hope
When something feels wrong and acts wrong,something is probably wrong.
2 months ago it should have been checked for fluid level and scanned for codes.
was your check engine light on this whole time?
What may have been a simple solution may no be not so simple.

"GOT CODES?"
Its a long shot but I'll try to keep it short... previous owner had the fluid changed and car stuck in first so I got it for a steal as they were told by MB a new transmission was needed. Coincidently, the fluid change wasnt the problem... the voltage regulator in my alternator happen to go bad and a simple replacement had the girl running and shifting smoother than silk. If you notice any issues with your electrical, look into that. I have a spare code reader if you need to borrow or buy. Good luck, lets get this baby up and running!



