Pneumatic locking/unlocking, function - GF80.20-P-4016A
MODEL 202 as of 1.6.97, 208, 210.081 /281, 210 (except 210.081 /281) as of 1.3.97
Pneumatic distribution
Illustrated on model 210 sedan
The electric motor driven dual pressure pump is integrated into the PSE control module (combined) (A37) . It provides vacuum or pressure depending on the polarity of the operating voltage. The distribution to the various actuators is accomplished by means of 3/2-way valves.
Global unlocking:
The dual pressure pump supplies pressure. Solenoid valves 1 and 2 are not switched so that all doors are unlocked, then solenoid valve 2 switches unlocking the tank flap .
Selective unlocking:
The dual pressure pump supplies pressure. Solenoid valve 2 is switched, solenoid valve 1 is not actuated. This unlocks the driver's door and tank flap.
Locking:
The dual pressure pump supplies vacuum. Solenoid valves 1 and 2 are not switched so that all doors are locked. Then solenoid valve 2 switches and the tank flap is unlocked.
Opening trunk lid
The dual pressure pump supplies pressure. Solenoid valve 1 is switched so that the trunk lid lock is opened when it is not secured by the locking cylinder in the 90° position.
Retractable rear head restraints (RHR)
The dual pressure pump supplies vacuum. Solenoid valve 1 is switched. The rear head restraints pivot to the rear (not on model 208.4).
| Pneumatic system equipment (PSE) control module | GF80.20-P-4106A |