Part 2
WM 970919 Removing and installing main wire harness
Loosening ground point
5.1. Screw off fastening nut and remove ground strap.
6. Release and pull off connector on rear angle sensor for range adjustment -42-. -> 947919 Rear angle sensor for range adjustment - section on "Removing" 94791900 Removing and installing rear angle sensor for headlight levelling system
7. Remove rubber sleeves -43-.
8. Unclip main wire harness in rear luggage compartment.
Unclipping main wire harness in rear luggage compartment
9. Disconnect PASM plug connections -45 and 46- at the left and right.
Disconnecting PASM plug connections at the left and right
9.1. Remove PASM plug connections on the left and right from both holders -arrow B- , release -arrow a- and disconnect them -arrows C-.
9.2. Open both holders -arrow D- and take off from actuating cable.
9.3. Remove wire harness to motor for hood compartment lid mechanism from the holder -arrow B-.
10. Release connector on motor for hood compartment lid mechanism -47- and pull it off.
11. Release and pull off connector on rear antenna for tyre pressure monitoring system -48 and 49- at the left and right. -> 443819 Removing and installing antenna for tyre pressure monitoring system - section on "Removing" 443819 Removing and installing antenna for Tyre Pressure Monitoring (TPM)
12. Disconnect and expose ABS wire harness rear on left and right -50 and 51-. -> 976555 Replacing ABS wire harness - section on "Removing" 976555 Replacing wire harness for anti-lock brake system (ABS)
12.1. Release and disconnect plug connection for wheel sensor at the left and right.
12.2. Unscrew fastening screw of connector socket.
12.3. Release rear wire harness.
13. Unclip the main wire harness in the area of the rear left spring strut.
Unclipping the main wire harness in the area of the rear left spring strut
14. Release rear window heating plug connection -53- and disconnect it.
15. Release connector on hood mechanism -54- and pull it off.
16. Pull off connector on front seat-belt pretensioner at the left and right -56 and 57-. -> 691119 Removing and installing front three-point belt - section on "Removing" 691119 Removing and installing front three-point belt
17. Unclip main wire harness to the left side wall.
Unclipping main wire harness to the left side wall
17.1. Unclip main wire harness to the left side wall -arrow A-.
17.2. Unclip cable duct to the left side wall -arrow B-.
18. Loosen cable duct to the left side wall.
Loosening cable duct to the left side wall
18.1. Unclip main wire harness to the bottom of the B-pillar -arrow A-.
18.2. Take out cable duct upwards out of the rear wall plate -arrow B-.
19. Release and pull off connector for airbag sensor, centre left and right -58 and 59-. -> 695119 Removing and installing airbag sensor - section on "Removing" 69511900 Removing and installing airbag sensor
20. Release and pull off connector for ParkAssist control unit -60 and 61-. -> 917419 Removing and installing ParkAssist control unit - section on "Removing" Service and Repair
21. Release and pull off connector for control unit for rear convenience systems -62 to 64-. -> 578919 Removing and installing control unit for rear convenience systems - section on "Removing". Service and Repair
22. Loosen ground point under the driver's seat -65-.
Loosening ground point
22.1. Screw off fastening nut and remove ground straps.
23. Unclip ground point under driver's seat.
Unclipping ground point under driver's seat
24. Release and remove connectors for telephone control unit -66 to 69-. -> 919019 Removing and installing control unit for telephone - section on "Removing" Service and Repair
24.1. Unclip wire harness for telephone control unit.
Unclipping wire harness for telephone control unit
25. Loosen ground point under the passenger's seat -70-.
Loosening ground point
25.1. Screw off fastening nut and remove ground straps.
26. Unclip wire harness at door sill.
Unclipping wire harness at door sill
27. Disconnect the plug connection between main wire harness and wire harness for door, left and right -75 and 76-. -> 973219 Removing and installing wire harness for door - section on "Disconnecting" 97321900 Removing and installing wire harness for door
28. Release and pull off connector for gateway control unit -81-. -> 903519 Removing and installing gateway control unit - section on "Removing" Service and Repair
29. Release and pull off connectors for KESSY/PAS control unit -82 and 83-. -> 966619 Removing and installing KESSY control unit - section on "Removing" Service and Repair
30. Release and pull off connector for brake light switch -84-. -> 943619 Removing and installing brake light switch - section on "Removing". Service and Repair
31. Release and pull off connector for pedal sensor -85-.
32. Loosen ground point under the unit carrier -91-.
Loosening ground point
32.1. Screw off fastening nut and remove ground straps.
33. Release and pull off connector for tilt sensor control unit -92-. -> 966319 Tilt sensor control unit - section on "Removing" Service and Repair
34. Disconnect plug connections between main wire harness and wire harness for heater/air-conditioning unit -94 and 95-.
Releasing electric plug connection
34.1. Release lower plug connection on heater/air-conditioning unit -arrows a- and unplug.
34.2. Release upper plug connection on heater/air-conditioning unit -arrows a- and unplug.
Releasing plug connection
34.3. Cut tie-wraps (main wire harness to heater/air-conditioning unit wire harness) with side cutters. Remove main wire harness.
Cutting tie-wraps
35. Release and disconnect plug connection for rain sensor -100-. -> 921219 Removing and installing rain sensor - section on "Removing" Service and Repair
36. Disconnect plug connection of make-up mirror, left and right -101 and 102-.
Disconnecting plug connection of make-up mirror
36.1. Unclip plug connection from console -arrow B-.
36.2. Release plug connection -arrow a- and disconnect it -arrows C-.
37. Unclip cable duct at front of roof frame.
Unclipping cable duct at front of roof frame
38. Unclip main wire harness at front of roof frame.
Unclipping main wire harness at front of roof frame
39. Remove main wire harness from A-pillar -area A-.
Removing main wire harness from A-pillar
40. Pull off connector for antenna amplifier, left and right -103 to 107-. -> 918419 Removing and installing antenna amplifier - section on "Removing" Service and Repair
41. Loosen ground points on dashboard bracket.
Loosening ground points on dashboard bracket
41.1. Unscrew fastening nuts and remove ground straps.
42. Unclip length compensation at the steering column.
Unclipping length compensation
42.1. Remove expansion rivet and length compensation.
43. Unclip cable guide on dashboard bracket.
Unclipping cable guide
44. Loosen holder for relay carrier.
Loosening holder for relay carrier
44.1. Unscrew the two fastening screws and remove the relay carrier holder from the dashboard bracket.
45. Loosen main wire harness at left dashboard bracket.
Loosening main wire harness at left dashboard bracket
45.1. Screw off fastening nut and remove fastening screw.
45.2. Unclip main wire harness on cable guide.
46. Loosen main wire harness at right dashboard bracket.
Loosening main wire harness at right dashboard bracket
46.1. Unclip main wire harness on both cable guides.
47. Loosen main wire harness at centre dashboard bracket.
Loosening main wire harness at centre dashboard bracket
47.1. Undo the four tie-wraps and remove main wire harness.
Removing main wire harness in passenger compartment
Overview of main wire harness for dashboard
Overview of connectors for main wire harness in passenger compartment
1. Disconnect plug connections for main wire harness to rear wire harness -33 and 34-.
Disconnect plug connections for main wire harness to rear wire harness.
1.1. Release plug connections for main wire harness to rear wire harness -arrows A- and disconnect.
2. Disconnect plug connections for main wire harness to engine wire harness -35 and 36-.
Disconnecting plug connections for main wire harness to engine wire harness
2.1. Release plug connections for main wire harness to engine wire harness -arrows A- and disconnect -arrows B-.
2.2. Release sockets for main wire harness -arrows C- and push down from relay carrier -arrows D-.
3. Release connector for rear vertical sensor -37- and pull it off.
4. Release and pull off connector on DME control module -38 and 39-. -> 247019 Removing and installing DME control module - section on "Removing" Service and Repair
5. Loosen ground point in luggage compartment -40-.
Loosening ground point
5.1. Screw off fastening nut and remove ground strap.
6. Release and pull off connector on rear angle sensor for headlight beam adjustment -41-. -> 947919 Angle sensor for rear headlight levelling system - section on "Removing" 94791900 Removing and installing rear angle sensor for headlight levelling system
7. Remove rubber sleeves -42-.
8. Disconnect main wire harness plug connections for rear lid wire harness -47 and 48-.
Disconnecting main wire harness plug connections for rear lid wire harness
8.1. Release main wire harness plug connections for rear lid wire harness -arrows A- and -arrows B- disconnect.
8.2. Release connector sockets for main wire harness -arrows C- and push down from retaining clip -arrows D-.
8.3. Unclip tie-wrap -arrow E-.
9. Disconnect PASM plug connections -49 and 50- at left and right.
Disconnecting PASM plug connection
9.1. Release and disconnect plug connection for wheel sensor at left and right -arrow a-.
10. Release and pull off connector on rear antenna for tyre pressure monitoring system -51 and 52- at left and right. -> 443819 Removing and installing antenna for tyre pressure monitoring system - section on "Removing" 443819 Removing and installing antenna for Tyre Pressure Monitoring (TPM)
11. Disconnect and expose ABS wire harness rear on left and right -53 and 54-. -> 976555 Replacing ABS wire harness - section on "Removing" 976555 Replacing wire harness for anti-lock brake system (ABS)
11.1. Release and disconnect plug connection for wheel sensor at left and right.
11.2. Unscrew fastening screw of connector socket.
11.3. Release rear wire harness.
12. Unclip the main wire harness in the area of the rear left spring strut.
Unclipping the main wire harness in the area of the rear left spring strut
13. Pull off connector on front seat-belt tensioner -56 and 57- at left and right. -> 691319 Removing and installing front three-point seat belt with tensioner - section on "Removing" Testing and Inspection Testing and Inspection
14. Unclip main wire harness to the left side wall.
Unclipping main wire harness to the left side wall
14.1. Unclip main wire harness to the left side wall -arrow A-.
14.2. Unclip cable duct to the left side wall -arrow B-.
15. Loosen cable duct to the left side wall.
Loosening cable duct to the left side wall
15.1. Unclip main wire harness to the bottom of the B-pillar -arrow A-.
15.2. Take out cable duct upwards out of the rear wall plate -arrow B-.
16. Release and pull off connector for airbag sensor, centre left and right -58 and 59-. -> 695119 Removing and installing airbag sensor - section on "Removing" 69511900 Removing and installing airbag sensor
17. Release and pull off connector for ParkAssist control unit -60 and 61-. -> 917419 Removing and installing ParkAssist control unit - section on "Removing" Service and Repair
18. Release and pull off connector for rear end convenience systems control unit -62 to 64-. -> 578919 Removing and installing control unit for rear end convenience systems - section on "Removing". Service and Repair
19. Loosen ground point under the driver's seat -65-.
Loosening ground point
19.1. Screw off fastening nut and remove ground straps.
20. Unclip ground point under driver's seat.
Unclipping ground point under driver's seat
21. Release and remove connectors for telephone control unit -66 to 69-. -> 919019 Removing and installing control unit for telephone - section on "Removing" Service and Repair
21.1. Unclip wire harness for telephone control unit.
Unclipping wire harness for telephone control unit
22. Loosen ground point under the passenger's seat -70-.
Loosening ground point
22.1. Screw off fastening nut and remove ground straps.
23. Unclip wire harness at door sill.
Unclipping wire harness at door sill
24. Disconnect the plug connection between main wire harness and wire harness for door, left and right -75 and 76-. -> 973219 Removing and installing wire harness for door - section on "Disconnecting" 97321900 Removing and installing wire harness for door
25. Release and pull off connector for gateway control unit -81-. -> 903519 Removing and installing gateway control unit - section on "Removing" Service and Repair
26. Release and pull off connectors for KESSY/PAS control unit -82 and 83-. -> 966619 Removing and installing KESSY control unit - section on "Removing" Service and Repair
27. Release and pull off connector for stop light switch -84-. -> 943619 Removing and installing stop light switch - section on "Removing". Service and Repair
28. Release and pull off connector for pedal sensor -85-.
29. Loosen ground point under the unit carrier -92-.
Loosening ground point
29.1. Screw off fastening nut and remove ground straps.
30. Release and pull off connector for tilt sensor control unit -93-. -> 966319 Tilt sensor control unit - section on "Removing" Service and Repair
31. Disconnect plug connections between main wire harness and wire harness for heater/air-conditioning unit -95 and 96-.
Releasing electric plug connection
31.1. Release lower plug connection on heater/air-conditioning unit -arrows a- and unplug.
31.2. Release upper plug connection on heater/air-conditioning unit -arrows a- and unplug.
Releasing plug connection
31.3. Cut tie-wraps (main wire harness to heater/air-conditioning unit wire harness) with side cutters. Remove main wire harness.
Cutting tie-wraps
32. Release and disconnect plug connection for rain sensor -99-. -> 921219 Removing and installing rain sensor - section on "Removing" Service and Repair
33. Disconnect plug connection of make-up mirror, left and right -100 and 101-.
Disconnecting plug connection of make-up mirror
33.1. Unclip plug connection from console -arrow B-.
33.2. Release plug connection -arrow a- and disconnect it -arrows C-.
34. Unclip cable duct at front of roof frame.
Unclipping cable duct at front of roof frame
35. Unclip main wire harness at front of roof frame.
Unclipping main wire harness at front of roof frame
36. Remove main wire harness from A-pillar -area A-.
Removing main wire harness from A-pillar
37. Pull off connector for antenna amplifier, left and right -102 to 106-. -> 918419 Removing and installing antenna amplifier - section on "Removing" Service and Repair
38. Loosen ground points on dashboard bracket.
Loosening ground points on dashboard bracket
38.1. Unscrew fastening nuts and remove ground straps.
39. Unclip length compensation at the steering column.
Unclipping length compensation
39.1. Remove expansion rivet and length compensation.
40. Unclip cable guide on dashboard bracket.
Unclipping cable guide
41. Loosen holder for relay carrier.
Loosening holder for relay carrier
41.1. Unscrew the two fastening screws and remove the relay carrier holder from the dashboard bracket.
42. Loosen main wire harness at left dashboard bracket.
Loosening main wire harness at left dashboard bracket
42.1. Screw off fastening nut and remove fastening screw.
42.2. Unclip main wire harness on cable guide.
43. Loosen main wire harness at right dashboard bracket.
Loosening main wire harness at right dashboard bracket
43.1. Unclip main wire harness on both cable guides.
44. Loosen main wire harness at centre dashboard bracket.
Loosening main wire harness at centre dashboard bracket
44.1. Undo the four tie-wraps and remove main wire harness.