Car in question is a 1999 Mercedes Benz CLK320 which I believe has the 722.6 automatic transmission. 75k miles on car.
Previous to this incident car ran flawlessly.
While driving, the check engine light came on, two miles later I see smoke pull over, look underneath the car and the transmission was covered in fluid. Drive another 2 miles to pull off the highway and notice the car does not shift out of 1st gear. Call tow truck and have car sent to a local transmission shop.
They look at the car, replace a few o-rings and "service" the transmission to the tune of $450. They tell me they did not experience the limp mode stuck in first gear issue on their test drive.
I get the car back and after driving 10 miles again the transmission is in limp mode and stuck in 1st gear. Bring it back to the shop. Check engine light came on P0715.
After two days they say they have replaced the 13 pin connector which is known to cause issues. They argue while on their test drives the transmission operates correctly. They want to charge me another $450 for the service and I say you already serviced it last week so they bump it down to $200. 3 miles after picking up the car it is in limp mode and stuck in 1st gear again.
At this point I do not want to take it to them again. Clearly they dont know what they are doing.
Any pointers here? I have read about the conductor plate being a possible culprit. Also about the TCM being flooded with oil although I would have expected them to check that when replacing the 13 pin connector.
Important to note that when the car is shut off and restarted the transmission is back to normal and shifting correctly.
Any help is appreciated.
Previous to this incident car ran flawlessly.
While driving, the check engine light came on, two miles later I see smoke pull over, look underneath the car and the transmission was covered in fluid. Drive another 2 miles to pull off the highway and notice the car does not shift out of 1st gear. Call tow truck and have car sent to a local transmission shop.
They look at the car, replace a few o-rings and "service" the transmission to the tune of $450. They tell me they did not experience the limp mode stuck in first gear issue on their test drive.
I get the car back and after driving 10 miles again the transmission is in limp mode and stuck in 1st gear. Bring it back to the shop. Check engine light came on P0715.
After two days they say they have replaced the 13 pin connector which is known to cause issues. They argue while on their test drives the transmission operates correctly. They want to charge me another $450 for the service and I say you already serviced it last week so they bump it down to $200. 3 miles after picking up the car it is in limp mode and stuck in 1st gear again.
At this point I do not want to take it to them again. Clearly they dont know what they are doing.
Any pointers here? I have read about the conductor plate being a possible culprit. Also about the TCM being flooded with oil although I would have expected them to check that when replacing the 13 pin connector.
Important to note that when the car is shut off and restarted the transmission is back to normal and shifting correctly.
Any help is appreciated.