Component description for the air pump relay - GF14.30-P-2010BK

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ENGINE 113.967 in MODEL 219

ENGINE 113.964 in MODEL 164.1

ENGINE 113.971 in MODEL 251

Shows model 219

Fig 1: Identifying Air Pump Relay Components (Shows Model 219)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Location

Model 219 In the driver-side SAM control unit with fuse and relay module
Models 164.1, 251 In the engine compartment fuse and relay box.

Task

To supply the electric air pump and at the same time the air pump switchover with voltage.

Function

The air pump relay is operated by the ME-SFI control unit through an output stage by means of a GND signal.