My C280 will not shift out of 2nd gear. It hits hard on R and D when I shift out of park. I noticed the day before this happened that the car did not downshift properly a couple of times. I also had a exterior lamp failure light come on in my dash a couple of times about a week or 2 ago..with no light out...I don't know if this could in any way be related. I had a shop run diagnostics and they said it showed an O2 sensor problem and a turbo-turbine problem...but my car is not turbocharged. They seem to think the O2 sensor is not the problem and are going to replace the "range selector switch". Has anyone had any similar problems? Any help would be much appreciated.

What's the age of the battery? Sounds like the shop could be expensive if they are going to throw parts at the problem until something works. I can't tell you exactly what the codes are teling you, but a shop ought to be able to. On your light bulb out, did you check your brake lights? Need two people for that.

Len

I had a friend check all the lights. Not sure of the battery age...I bought the car used about 5 months ago with 57,000 miles. Could an old battery cause the car to limp home? Thanks a lot.

Battery can cause lots of problems. There is a date code on the battery. If it's more than five years old, I'd say change it and see what you've got.

Len

There are 96 transmission codes that could be scanned from the trans computer, HAVE that & the traction systems scanned!!!

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

You need a mechanic with the SDS system, and as MB DOC stated, have the trans codes read. The mechanic will be able to read the codes and the adaptation values for the trans, and that will be very helpful. The early 722.6's often have conductor plate failures, valve body failures and ETC units can go bad as well. Has the trans been updated at all?

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John Shellenberg
1998 C230 "Black Betty" 240K

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