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:
- 1 screw
- the shock absorber from the lateral link.

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 on both sides




Remove the 2 screws on both sides.
Carefully lower the sub-frame. Ensure that no cables / hoses are loaded or trapped when lowering the sub-frame.

Removal

Removing the pump for leak diagnostics





Remove:
- the M6 screw securing the pump mounting to the sub-frame
- the connector (1) from the pump
- the hose from the carbon filter container
- the pump for leak diagnostics.

Transferring the bracket





Remove:
- the hose
- the 3 screws
- the bracket.

Installation

Note! For tightening torques, see: Tightening torque, B5254T7, AW55-50/51SN, B5254T7, M66 Tightening Torque.

Installing the pump for leak diagnostics





Install:
- the hose to the carbon filter container
- the connector (1)
- the M6 screw.

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 screws on both sides. Tighten. See: Tightening torque [1][2]Specifications.




Install the screw 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.