Problem
I am having some issues with my transmission. Long story short, I brought my 2006 clk500 to an authorized mercedes benz repair and they ran a diagnostics on my car. This is what came up on the report:
Code 2505: Hydraulic fault in transmittion (engaging shift element does not engage)
Code 2502: The gear is implausible or the transmission is slipping.
He advised me that an actual mercedes benz repair center located in a dealership would haveto do the repair on something like this.
Does anyone have any info on the possible cost or similar experiences?
Appreciate it
-Don
As for the errors, I would seek assistance from a dealership. The first thing to check is fluid levels and mileage vs. last fluid/filter change (should be done at least at 39K miles initially, and really, every 39K miles). If it's not a fluid problem, then it could be a problem in the valve body and/or contact plate. Hopefully it is not a failed pump. Again, someone that knows these transmissions needs to do the work.

2502 is is usually a sign of speed sensor trouble which is caused by the VDO conductor plate going bad.
Last edited by Glyn M Ruck; Jun 24, 2012 at 10:48 AM.
As for the errors, I would seek assistance from a dealership. The first thing to check is fluid levels and mileage vs. last fluid/filter change (should be done at least at 39K miles initially, and really, every 39K miles). If it's not a fluid problem, then it could be a problem in the valve body and/or contact plate. Hopefully it is not a failed pump. Again, someone that knows these transmissions needs to do the work.
Last edited by Glyn M Ruck; Jun 24, 2012 at 10:49 AM.
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