Divert air switchover valve, location/task/structure/function - GF07.05-P-3104M

ENGINES 275.953 in MODEL 216, 221 up to Model Year 08/modification year 07 

ENGINES 275.982 in MODEL 216, 221 up to Model Year 08/modification year 07 

Fig 1: Identifying ECI Ignition Module, Air Pump And Divert Air Switchover Valves

Courtesy of MERCEDES-BENZ USA

Deceleration air switchover valve, location	Located at back of right cylinder head. Observe risk of mixing up with air pump switchover valve.
Deceleration air switchover valve, task	When actuated apply vacuum from the vacuum reservoir to the aneroid capsules of both deceleration air valves.
Deceleration air switchover valve, design/function	The voltage to the electromagnetic valve is supplied from terminal 87. The ME control unit actuates the valve at the ground end. A solenoid with armature operates a valve which switches between the connectors.