Release Pressure In Pressure Reservoir For Hydraulic Power Window Assembly In Front Door - AR67.39-P-0013-01SG

Model 223 

with code Z07 (B7 armoring on special protection version) 

with code Z11 (Left front power window with special protection) 

Model 223 

with code Z07 (B7 armoring on special protection version) 

with code Z12 (Right front power window with special protection) 

Courtesy of MERCEDES-BENZ USA

The following activity allows the hydraulic fluid to flow back from the pressure reservoir to the window lifter hydraulic pump. This ensures that the lock of the window lifter engages and prevents a lowering of the window lifter.

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

   Side window may not lower.