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Removing And Installing Main Wiring Harness



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 chapters because of its size.
- For body repairs, refer to the specific chapters 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.
Remove dashboard bracket.
Remove heater/air-conditioning unit.
Remove 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-.

Remove main wiring harness - roof area. Remove fuse element for auxiliary battery.
Remove main wire harness - floor area and left-hand side.
Remove main wire harness - floor area and right-hand side.
Remove main wire harness - engine compartment.

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.
Install main wire harness - floor area and left-hand side.
Install main wire harness - floor area and right-hand side
Install main wire harness - engine compartment.
Install dashboard bracket.
Install heater/air-conditioning unit.
Install centre console.
Connect the battery.