722.9 Conductor Plate Replaced on the CLK
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MBworld Guru
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NO LONGER ACTIVE
The pilot bushing leak is only applicable to the 722.6 transmission with its external TCU that needed a 13-pin connection. The 722.9 that your car has does not use this same busing. Its TCU is internal (in the conductor plate) and uses a simple, small 4-wire electrical connection to the car. it rarely leaks and if it does, it would not cause any issues except oil on the garage floor.
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Joined: Jul 2018
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2007 S550
Sounds right, the TC takes it's command(s) for lock-up\unlock from the TCU.
The only other scenario I could see is the trans\converter is low on fluid.
Typically the converter is prefilled before it is installed. The final procedure is to road test the vehicle and then adjust the fluid level a second time as it will always lower.
It'd be odd if your shop didn't perform this last step though.
The only other scenario I could see is the trans\converter is low on fluid.
Typically the converter is prefilled before it is installed. The final procedure is to road test the vehicle and then adjust the fluid level a second time as it will always lower.
It'd be odd if your shop didn't perform this last step though.
Member
Joined: Dec 2018
Posts: 247
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From: Lawrence, Kansas
GL320
The TCC is very sensitive to changes in valve body and conductor plate. Usually any changes result in needing to readapt the TCC. It has been my experience that the TCC will never really adapt properly without the proper teach in procedures in Star.
Did you replace the valve body and conductor plate or just replace the plate?
Did you replace the valve body and conductor plate or just replace the plate?
Last edited by dhurley; Feb 14, 2020 at 10:25 AM.
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2005 CLK 500
Member
Joined: Dec 2018
Posts: 247
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From: Lawrence, Kansas
GL320
After the plate is coded to your car, a teach in process (adaptation) has to be carried out with star diagnostic to make sure your trans learns the new fill times and pressures needed from the new valve body. This is done in three separate stages and can be done independently of eachother but generally should be done in this order:
1. Torque converter adaptation
2. Upshift adaptation
3. Downshift adaptation
