Transmission Position Sensor/Switch: Service and Repair

Multi-Function Transmission Range Switch

Special tools, testers and auxiliary items required

• Setting Gauge (T10173)

• Torque wrench (V.A.G 1331)

Removing

- Move selector lever to position "N".

- Switch ignition off.

- Disconnect intake hose - 1 - and connector - 2 - from Mass Air Flow (MAF) sensor.





- Disconnect Secondary Air Injection (AIR) pump hose - 3 - from air filter housing.

- Remove bolts - 4 -, - 5 - and - 6 -.

- Remove air filter completely.

- Pry off selector lever cable - 1 - from lever/selector shaft - 4 - e.g. using a 10 mm open-end wrench - 3 -.





- Press locking devices on selector lever cable support bracket together - arrows - and pull out selector lever cable from support bracket/transmission.

- Disconnect connector - 2 - from Multi-Function Transmission Range (TR) Switch (F125).

- Remove nut - 1 -.





- Pull spring ring - 2 - and lever - 3 - off selector shaft - 4 -.

- Bend back hooks of locking washer - 2 - using a screwdriver.





• If one or more hooks of the locking washer break off while bending, replace locking washer.

- Remove nut - 1 -.

- Remove bolt - 5 -.

- Pull off multi-function switch - 4 - with washers - 2 - and - 3 - from selector shaft - 6 -.

Installing

Installation is in reverse order of removal. Note the following:

- Connect Multi-Function Transmission Range (TR) Switch (F125) - 4 - to selector shaft - 6 -.





- Installing mounting bolts - 5 - for multi-function switch hand-tight.

- Bend hooks of locking washer - 2 - back.

- Install washers - 2 - and - 3 - onto selector shaft - 6 -.

• Install washer - 2 - with hook pointing upward.

• Install washer - 2 - with long narrow guides into long narrow recesses of selector shaft - 6 -.

- Tighten nut - 1 - to 7 Nm.

- Secure nut - 1 - on locking washer - 2 - by bending up hooks.

• If one or more hooks of the locking plate break off while bending, replace the locking plate.

- Connect lever - 3 - to selector shaft - 4 -.





- Shift transmission into position "P" using lever - 3 -, by pressing lever - 3 - toward rear until it stops.

- Shift transmission into position "N" using lever - 3 -. Move lever - 3 - two engaged positions toward front in direction of travel.

- Install spring washer - 2 - and nut - 1 - onto selector shaft - 4 -.

- Tighten nut - 1 - to 13 Nm.