Pressure Control Valve - Mercedes-Benz 603 Service Manual

Pressure control valve

Engines 602.91, 603.91
125
Oil separator
126
127 Return pipe
141 Pressure control valve
The pressure control valve is designed as a
diaphragm-type valve and built into the oil
separator in the cylinder head cover.
A hole is present in the cylinder head cover to
vent the diaphragm chamber in the pressure
control valve (arrow). This hole must not be
plugged by dirt or preservation agents.
01.10 - 040/5
141a
Diaphragm
142 Spring
Holder
143
a Vent hole
EXIT