P0729 Mercedes-Benz Automatic Transmission 6th Gear Incorrect Ratio
Possible causes
– Low transmission fluid level
– Shift solenoid mechanical fault
– Hydraulic circuit fault
– Transmission failure
– Shift solenoid mechanical fault
– Hydraulic circuit fault
– Transmission failure
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Transmission will not shift into 6th gear
– Transmission will not shift into 6th gear
P0729 Mercedes-Benz Description
This malfunction is detected when the A/T does not shift into 6GR position as instructed by TCM. This is not only caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve operation, etc.
Mercedes-Benz Vehicle:Mercedes-Benz C-Class,Mercedes-Benz CL-Class,Mercedes-Benz CLK-Class,Mercedes-Benz CLS-Class,Mercedes-Benz E-Class,Mercedes-Benz G-Class,Mercedes-Benz GL-Class,Mercedes-Benz GLK-Class,Mercedes-Benz M-Class,Mercedes-Benz R-Class,Mercedes-Benz S-Class,Mercedes-Benz SL-Class,Mercedes-Benz SLK-Class,Mercedes-Benz SLS-Class,Mercedes-Benz Sprinter 2500,Mercedes-Benz Sprinter 3500,