Front Suspension

Residual Pressure Retaining Valve

Special tools, testers and auxiliary items required

• Socket (T10158/1)

• Residual pressure retaining valve must only be replaced if it was damaged during removal and installation or servicing of suspension strut (air suspension) or if air is not released from it anymore (it sticks).

• With suspension strut (air suspension) removed, no further preparation is needed to replace residual pressure retaining valve.

• If residual pressure retaining valve sticks, the vehicle must be on a hoist and the wheels must rotate freely in order to replace the valve.

• When removing air line, there is the possibility that the residual pressure retaining valve will also be removed.

• If the vehicle is not raised with a hoist, vehicle sinks immediately on side where residual pressure retaining valve was removed. There is a strong risk of injury because the arms are clamped.

• Vehicle must remain on hoist until a new residual pressure retaining valve is installed and suspension strut (air suspension) is refilled.

Removing

• This procedure applies to replacement of residual pressure retaining valve with suspension strut (air suspension) installed.

- Position the vehicle on the lifting platform and raise it until the wheels rotate freely.

- Remove wheel housing liner..

- Remove residual pressure retaining valve from air line.

- Remove residual pressure retaining valve - 1 - from suspension strut (air suspension) using (T10158/1) - 2 -.






Installing

Installation is the reverse of removal, with special attention to the following:

Vehicle must remain on hoist until a new residual pressure retaining valve is installed and suspension strut (air suspension) is refilled.

Tightening specifications, refer to => [ Front Air Suspension Strut Overview ] Front Air Suspension Strut Overview

- Fill suspension strut (air suspension) via vehicle diagnostic tester. Refer to => [ System, Venting or Filling ] System, Venting or Filling.