Removing

WM 970919 Removing and installing main wiring harness

Technical values





Removing main wiring harness

Information





Information

- The repair instructions document "Main wire harness" is divided into several sections because of its size.

- For body repairs, refer to the specific sections on installing and removing individual sections of wiring.

CAUTION

-> The main wire harness contains all airbag lines, antenna lines and optical waveguides.
-> The main wire harness must therefore not be cut for major repair work and must be replaced complete.
-> If individual lines are damaged, isolate them (disconnect, remove plug contacts from plug connections etc.) and replace the original wire harness by installing new lines.

Removing main wiring harness - centre console

Disconnect the battery -> 90 Work instructions after disconnecting the battery.

Remove dashboard bracket -> 701219 Removing and installing dashboard bracket - section on "Removing" 701219 Removing and installing bracket for dashboard.

Remove heater/air-conditioning unit -> 851519 Removing and installing heater/air-conditioning unit - section on "Removing" 851519 Removing and Installing Heater/Air-Conditioning Unit.

Remove centre console -> 681719 Removing and installing centre console - section on "Removing" 681719 Removing and installing centre console.
1. Unscrew fastening screws -Arrows A- and remove brackets -Arrows B-.





2. Fold down floor carpeting at centre console -Arrows C-.
3. Release securing clip -Arrow A- and open up -Arrow B-.





4. Remove connector from airbag triggering unit -Arrow C-.
5. Release connector -Arrow A- and disconnect it from the ESP multiple sensor -Arrow B-.





6. Release plug connection -Arrow C- and disconnect -Arrow D-.
7. Unscrew fastening nuts -1- and remove both ground straps together with twist locks -a- -arrow-.





8. Release covers of both wiring ducts -Arrow A- and open them -Arrow B-.





9. Unclip wire harness -Arrow A- and pull it up and out -Arrows B-.





Removing main wiring harness - dashboard area

1. Compress right rubber sleeve -Arrows A- and remove it -Arrow B-.





2. Cut tie-wrap -C-.
3. Remove wiring duct together with wire harness from pedal block -arrow-.





4. Press centre rubber sleeve together -Arrows A- and remove it -Arrow B-.





5. Compress left rubber sleeve -Arrows C- and remove it -Arrow D-.

Remove main wiring harness - roof area. Remove fuse element for auxiliary battery -> 979219 Removing and installing fuse element - section on "Removing" 979219 Removing and installing fuse element in power distributor.

Remove main wire harness - floor area and left-hand side -> 970919 Removing and installing main wire harness - floor area and left-hand side - section on "Removing" 970919 Removing and Installing Main Wiring Harness - Floor Area and Left-Hand Side.

Remove main wire harness - floor area and right-hand side -> 970919 Removing and installing main wire harness - floor area and right-hand side - section on "Removing" 970919 Removing and Installing Main Wiring Harness - Floor Area and Right-Hand Side.

Remove main wire harness - engine compartment -> 970919 Removing and installing main wire harness - section on "Removing" 970919 Removing and Installing Main Wiring Harness.

Installing main wiring harness

Installing main wiring harness - dashboard area

1. Press wire harness with wiring duct into pedal block -Arrow A- until locking tabs -B- are felt to engage.





2. Apply a suitable rubber lubricant (tyre mounting paste) to rim of centre rubber sleeve -A- and press in rubber sleeve until it is felt to engage in the firewall. -Arrow B-.





3. Apply a suitable rubber lubricant (tyre mounting paste) to rim of left rubber sleeve -C- and press in rubber sleeve until it is felt to engage in the firewall -Arrow D-.
4. Fasten line to the clip with a new tie-wrap -A-.





5. Apply a suitable rubber lubricant (tyre mounting paste) to rim of right rubber sleeve -B- and press in rubber sleeve until it is felt to engage in the firewall -Arrow C-.

Installing main wiring harness - centre console

1. Pass the wire harness through and under the floor carpeting -Arrows A- and position in the wiring ducts.





2. Clip in the line -Arrows B-.
3. Close wiring ducts -Arrow A- until locking tabs are felt to engage -B-.





4. Place lines with twist locks -a- on the threaded bolts -arrows- and tighten with fastening nuts -1- => Tightening torque: 6.5 ftlb..





5. Push together plug connection -Arrows A- until the locking tabs -B- are felt to engage.





6. Push connector onto ESP multiple sensor -Arrow C- until locking tab -D- is felt to engage.
7. Push connector onto airbag triggering unit -Arrow A-.





8. Close securing clip -Arrow B- until the locking tab -C- is felt to engage.

Install main wiring harness - roof area. Install fuse element for auxiliary battery -> 979219 Removing and installing fuse element - section on "Installing" 979219 Removing and installing fuse element in power distributor.

Install main wire harness - floor area and left-hand side -> 970919 Removing and installing main wire harness - floor area and left-hand side - section on "Installing" 970919 Removing and Installing Main Wiring Harness - Floor Area and Left-Hand Side.

Install main wire harness - floor area and right-hand side -> 970919 Removing and installing main wire harness - floor area and right-hand side - section on "Installing" 970919 Removing and Installing Main Wiring Harness - Floor Area and Right-Hand Side.

Install main wire harness - engine compartment -> 970919 Removing and installing main wire harness - section on "Installing" 970919 Removing and Installing Main Wiring Harness.

Install dashboard bracket -> 701219 Removing and installing dashboard bracket - section on "Installing" 701219 Removing and installing bracket for dashboard.

Install heater/air-conditioning unit -> 851519 Removing and installing heater/air-conditioning unit - section on "Installing" 851519 Removing and Installing Heater/Air-Conditioning Unit.

Install centre console -> 681719 Removing and installing centre console - section on "Installing" 681719 Removing and installing centre console.

Connect the battery -> 90 Work instructions after disconnecting the battery.