Crankcase Breather Valve (USA_LHD)

Crankcase Ventilation, S54 Engine

Crankcase ventilation, S54 engine
The purpose of the crankcase ventilation is to convey the blow-by gases into the engine's intake system. There, they are mixed with fresh air and enter the combustion chamber.

The crankcase ventilation is switched on by the activation of a valve.

In the event of faults, check the valve, feed hose, signal cables and fuse.