SL/R129: R129 not shifting anymore
#1
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1997 Mercedes-Benz SL320 R129
R129 not shifting anymore
Dear all,
In need of your help here. My SL is not shifting anymore into gears, only engaging D and R with a loud bang sound and leaping forward/backward.
The car is still driveable - it revs up to 4000 rpm at 30 mph and just won't shift. There is no CEL on.
Thanks to search function in this forum I understood it might be the gearbox conductor plate. Before attempting to change it, I'd like to get some advices from you.
How could I start the troubleshooting to narrow the possibilities? I have to get a proper scan tool as well - do you recommend any? Consider my car is a '97 320, so won't have the more easily readable electronics of the later series '98-'01.
Please let me know, I really wont to get it back on the road!
Thanks in advance!
In need of your help here. My SL is not shifting anymore into gears, only engaging D and R with a loud bang sound and leaping forward/backward.
The car is still driveable - it revs up to 4000 rpm at 30 mph and just won't shift. There is no CEL on.
Thanks to search function in this forum I understood it might be the gearbox conductor plate. Before attempting to change it, I'd like to get some advices from you.
How could I start the troubleshooting to narrow the possibilities? I have to get a proper scan tool as well - do you recommend any? Consider my car is a '97 320, so won't have the more easily readable electronics of the later series '98-'01.
Please let me know, I really wont to get it back on the road!
Thanks in advance!
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1997 Mercedes-Benz SL320 R129
Thank you for your reply.
So you won't suggest it at all or do you recommend sourcing a suitable diagnostic tool beforehand? Or only the original star diag will do the work?
Worst case, I could possibly bring it in the shop just for a reset after the plate change.
So you won't suggest it at all or do you recommend sourcing a suitable diagnostic tool beforehand? Or only the original star diag will do the work?
Worst case, I could possibly bring it in the shop just for a reset after the plate change.
#4
I have my own Star diagnostic device, so for me that's not a question. The symptoms are exactly those of a defective conductor plate. If I were you, I would save the money for a diagnosis and only go to a workshop with SD after the repair.
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1997 Mercedes-Benz SL320 R129
Thank you - I understand then that my problem is most likely the conductor plate. I will carry out the replacement and then go to the shop for a code reset.
Will keep you updated on the outcome!
Will keep you updated on the outcome!