Diesel Data: Automotive Repair

Limp-Home Solenoid




Limp-home solenoid


To remove







1. Remove the engine cover.
2. Remove the cover on the throttle body pedal arm.
3. Undo the lower bolt (it may be difficult to reach), using a magnetic T15 bit.
4. Remove the rubber seal and unplug the connector.
5. Remove the upper screw.
6. Remove the solenoid. (Not available as a separate spare part)

To fit
1. Fit the solenoid.







2. Screw in the upper screw.
Tightening torque 2.5 Nm (1.8 lb ft)

3. Spray the connector with Kontakt 61 (part no.30 04 520). Plug in the connector and fit the rubber seal.
4. Tighten the lower screw (it can be difficult to reach) using a magnetic T15 bit.
Tightening torque 2.5 Nm (1.8 lb ft)

5. Fit the cover on the throttle body pedal arm.
6. Put the engine cover in place.


IMPORTANT
On removal of the limp-home solenoid, the throttle body goes into mechanical limp-home mode. After fitting, the limp-home mechanism must therefore be reset as described in Resetting activated limp-home solenoid.