ad3233l600028a

ENR test of electrical system front solenoid valve

Type ad · topic 32.33 · version 0100 · 2003-06-10

Applies to: MODEL 668.3, 670.3 with CODE (CE2) Air suspension at rear with CODE (CE3) Air suspension at front and rear Elektronische Niveauregelung (ENR)

Where it sits

Function group 2 Chassis › 32 Suspension › 32.33 Ground clearance compensator (NR/ENR) — Series 668 (models 3**) · Series 670 (models 3**)

EinPAS 20 Chassis › 20.20 Level control › 20.20.1 Basic information — Series 668 (models 3**) · Series 670 (models 3**)

AD32.33-L-6000-28A

ENR test of electrical system front solenoid valve

Scope of test

Measuring instrument/

Test connection

Operation/Requirement

Specified value

Possible cause/Remedy

1.0

Front axle ENR solenoid valve (Y11)

"Raise" actuation

"Lower" actuation

10

21

10

FA

1

1

1

Ignition: Off

Coupling on ENR control unit (A6) disconnected

Ignition: On

Max. 6 bar for safety reasons

Ignition: On

Bellows pressure: increases

Bellows pressure: decreases to approx. 0 bar

Connector X37

1.1

1.1

Resistance

14

10

Ignition: Off

Coupling on ENR control unit (A6) disconnected

100 –120 Ω

Front axle ENR solenoid valve (Y11)