Release Pressure In Pressure Reservoir For Hydraulic Power Window Assembly In Rear Door - AR67.39-P-0012-01SG

Model 223 

with code Z07 (B7 armoring on special protection version) 

with code Z13 (Left rear power window with special protection) 

Model 223 

with code Z07 (B7 armoring on special protection version) 

with code Z14 (Right rear power window with special protection) 

Courtesy of MERCEDES-BENZ USA

The following activity allows the hydraulic fluid to flow back from the pressure reservoir into the hydraulic pump for the window lifter. This ensures that the catch of the window lifter engages to prevent the window lifter from lowering.

1. Actuate emergency actuation (1) until side window is completely closed.
2. Disconnect electrical connector of electric pump.
3. Actuate emergency actuations (1, 2) at the same time for approx. 5 s.
4. Actuate emergency actuation (2) to check whether side window lowers.

   The side window must not lower.