GF32.31-P-5114TX | AIRmatic relay, component description | 8.4.04 |
MODEL 219.3 with CODE (489) Airmatic (semi-active air suspension)
P32.22-2304-05
Shown: Driver-side SAM control unit with fuse and relay module (N10/1)
K67 AIRmatic relay
The AIRmatic relay (K67) is clipped onto the driver-side SAM control unit with fuse and relay module (N10/1).
Task
To switch the high load current of approx. 30 A for the air compressor motor (A9/1m1).
P32.22-2305-01
Body
(schematic representation)
K Normally open contact
S Solenoid
K67 AIRmatic relay
Connections (pin assignment)
1 Circuit 85 (control current, ground)
2 Circuit 86 (control current, voltage supply)
3 Circuit 30 (load current, input)
5 Circuit 87 (load current, output, to air compressor motor)
Function
The AIRmatic with ADS control unit (N51) supplies the solenoid (S) on circuit 86 with voltage. As soon as the AIRmatic system air pressure requires (e.g. for filling the air pressure reservoir or level adjustment), the AIRmatic with ADS control unit (N51) actuates the solenoid (S) on circuit 85 with ground. This then closes the normally-open contact (K) and the load current can flow from circuit 30 via the normally-open contact to circuit 87, the air compressor motor (A9/1m1) is supplied with voltage and starts up.
Circuit 30 of the AIRmatic relay (K67) is supplied with voltage via fuse 74 (F32f74) in the front prefuse located in the right front footwell(F32).