Leak Detection Pump: Service and Repair

Leak diagnostic pump

Special tools:
998 5972 JACK 998 5972 Jack
999 5972 FIXTURE 999 5972 Fixture

Note! As the illustrations in this service information are used for different model years and / or models, some variation may occur. However, the essential information in the illustrations is always correct.

Preparatory work

Removing the shock absorber





Remove the following on both sides:
- the screw
- the shock absorber from the lateral link.

Removing exhaust support




Remove the two rubber mountings from the rear muffler.

Lowering the sub-frame





Note! Ensure that no cables / hoses are loaded or trapped when lowering the sub-frame.

Use mobile jack: 998 5972 JACK 998 5972 Jack and: 999 5972 FIXTURE 999 5972 Fixture. Position the mobile jack against the sub-frame.
Pull the brake hose out of its bracket on both sides

Remove:
- the screw (1) on both sides
- the 2 x screws (2) on both sides.
Lower the sub-frame approximately 5 cm. Ensure that no cables / hoses are put under strain or trapped when lowering the sub-frame.

Removal

Removing the pump for leak diagnostics





Remove:
- the M6 screw (1) securing the pump bracket to the sub-frame
- the 3 x M5 (2) screws
- the bracket.






Remove:
- the connector (1)
- the pipe with quick-release connectors (2)
- the clamp and hose (3)
- the pump for the leak diagnostic unit.

Installation

Note! For tightening torques, see: Tightening torque Tightening Torque.

Installing the pump for leak diagnostics





Install:
- the pump for the leak diagnostic unit
- the clamp and hose (3)
- the pipe with quick-release connectors (2)
- the connector (1).





Install:
- the bracket
- the 3 x M5 (2) screws
- the M6 screw (1).

Finishing

Installing the sub-frame




Lift up the sub-frame. Ensure that the locating pins engage in their holes in the bodywork.

Note! Ensure that no cables / hoses are loaded or trapped when installing the sub-frame.

Install:
- the 2 x screws (2) on both sides. Tighten. See: Tightening torque [1][2]Specifications
- the screw (1) on both sides. Tighten. See: Tightening torque [1][2]Specifications.
Remove the lifting table.

Installing the shock absorber





Install on both sides:
- the shock absorber
- the screw. Tighten. See: Tightening torque [1][2]Specifications
- the brake hose in its bracket on both sides.

Installing the exhaust




Install the two rubber mountings for the rear muffler.