Installing Main Wire Harness
Installing Main Wire Harness
Installing main wire harness in passenger compartment
Part 1:
Part 2:
Part 1:
Part 2:
Part 3:
1. Fasten main wire harness at centre dashboard bracket.
1.1. Lay main wire harness and fasten with four new tie-wraps
2. Fasten main wire harness at right dashboard bracket.
2.1. Clip in main wire harness on both cable guides.
3. Fasten main wire harness at left dashboard bracket.
3.1. Clip in main wire harness on cable guide.
3.2. Insert fastening screw and tighten fastening nut.
Tightening torque: 3.5 Nm (2.5 ftlb.)
4. Fasten holder for relay carrier.
4.1. Position holder for relay carrier and tighten with the two fastening screws to the dashboard bracket.
Tightening torque: 3.5 Nm (2.5 ftlb.)
5. Clip in cable guide on dashboard bracket.
6. Clip in length compensation at the steering column.
6.1. Position length compensation at the steering column and fasten with the expansion rivet.
7. Fasten ground points on dashboard bracket.
7.1. Fit ground straps and tighten with fastening nuts.
Tightening torque: 9 Nm (6.5 ftlb.)
8. Push on connector for antenna amplifier, left and right -103 to 107-.
9. Remove protective film of adhesive strip on main wire harness -area A- and affix main wire harness to A-pillar.
10. Clip in main wire harness at front of roof frame.
11. Clip in cable duct at front of roof frame.
12. Connect plug connection of make-up mirror, left and right -101 and 102-.
12.1. Push together plug connection -arrows A- until it is felt to engage.
12.2. Clip plug connection into console -arrow B-.
13. Push together plug connection -100- until it is felt to engage.
14. Connect plug connections between main wire harness and wire harness for heater/air-conditioning unit -94 and 95-.
14.1. Lay main wire harness to heater/air-conditioning unit wire harness and fix with a tie-wrap.
14.2. Push in upper electric plug connection at heater/air-conditioning unit until it is felt to engage.
14.3. Push in lower electric plug connection at heater/air-conditioning unit until it is felt to engage.
15. Push on connector for tilt sensor control unit -92- until it is felt to engage.
16. Fasten ground point under the unit carrier -91-.
16.1. Connect ground straps and screw down fastening nut.
Tightening torque: 9 Nm (6.5 ftlb.)
17. Push on connector for pedal sensor -85- until it is felt to engage.
18. Push on connector for stop light switch -84- until it is felt to engage.
19. Push on connectors of KESSY/PAS control unit -82 and 83- until they are felt to engage.
20. Push on connector of Gateway control unit -81- until it is felt to engage.
21. Push the plug connection together between main wire harness and wire harness for door, left and right -75 and 76-.
22. Clip in wire harness at door sill.
23. Fasten ground point under the passenger seat -70-.
23.1. Connect ground straps and screw down fastening nut.
Tightening torque: 9 Nm (6.5 ftlb.)
24. Push on connectors for telephone control unit -66 to 69- until they are felt to engage.
24.1. Clip in wire harness for telephone control unit.
25. Clip in wire harness under driver's seat.
26. Fasten ground point under the driver's seat -65-.
26.1. Connect ground straps and screw down fastening nut.
Tightening torque: 9 Nm (6.5 ftlb.)
27. Push on connectors for rear end convenience systems control unit -62 to 64- until they are felt to engage.
28. Push on connectors for ParkAssist control unit -60 and 61- until they are felt to engage.
29. Push on connectors for airbag sensor, centre left and right -58 and 59- until it is felt to engage.
30. Fasten cable duct to the left side wall.
30.1. Insert cable duct downward in the rear wall plate -arrow A-
30.2. Clip in cable duct to the bottom of the B-pillar -arrow B-.
31. Clip in main wire harness to the left side wall.
31.1. Clip in cable duct to the left side wall.
31.2. Clip in main wire harness to the left side wall.
32. Plug in connector on front seat-belt tensioner -56 and 57- at left and right.
33. Push on connector for convertible top mechanism -54- until it is felt to engage.
34. Push the plug connection for the rear window heating -53- together until it is felt to engage.
35. Clip in the main wire harness in the area of the rear left spring strut.
36. Lay and connect ABS wire harness, front left and right -50 and 51-.
36.1. Laying ABS wire harness
36.2. Tighten fastening screw of connector socket.
Tightening torque: 10 Nm (7.5 ftlb.)
36.3. Lock the plug connection securely.
37. Push on connectors of front antenna for tire Pressure Monitoring -48 and 49- at left and right until they are felt to engage.
38. Push connector onto motor for convertible-top compartment lid drive -47- , until it is felt to engage.
39. Connect PASM plug connections -45 and 46- at left and right.
39.1. Press wire harness to motor for convertible-top compartment lid drive into the holder -arrow C-.
39.2. Position both holders on the actuating cable and close -arrow A-.
39.3. Push plug connections for PASM together on left and right -arrows B- , until these are felt to engage and press in both holders -arrow C-.
40. Clip in main wire harness in rear luggage compartment.
41. Fit rubber sleeves -43-.
42. Push connector onto rear angle sensor for headlight beam adjustment -42- until it is felt to engage.
43. Fasten ground point in rear luggage compartment -40-.
43.1. Fit ground strap and secure with fastening nut.
Tightening torque: 9 Nm (6.5 ftlb.)
44. Push on connector of DME control module -38 and 39- until it is felt to engage.
45. Push on connector of rear vertical sensor -37- until it is felt to engage.
46. Push main wire harness plug connections for motor wire harness -35 and 36-.
46.1. Push sockets for main wire harness onto relay carrier -arrows A- , until these are felt to engage.
46.2. Push plug connections for main wire harness to motor wire harness together -arrows B- , until these are felt to engage.
47. Push together plug connections for main wire harness to rear wire harness -33 and 34- and lock them, until these are felt to engage.
Completing the vehicle
1. Install left and right support.
1.1. Position the support and engage in lower side member.
1.2. Press in the locating peg -1- of the support and check it is seated correctly.
1.3. Tighten the fastening nut -3- and fastening screws -2-.
Tightening torque: 7.2 Nm (5.5 ftlb.)
2. Lay the floor covering over the support and engage.
INFORMATION: Ensure that belt strap can run properly.
3. Fasten seat belt mount at left and right.
3.1. Tighten fastening screw -2- , seat belt with fitting -3- and spacer sleeve -4- on inner lower side member.
Tightening torque: 50 Nm (37 ftlb.)
3.2. Press in -1- cap.
Installing front main wire harness
Part 1:
Part 2:
1. Push through main wire harness in direction of plenum panel.
2. Fit grommets -41- centre, left and right.
3. Clip in wire harness on end plate under windscreen at the two retaining clips -arrow-.
4. Push on connector for fuel level sender -40- -Arrow A- and lock -Arrow B-.
5. Position battery retaining bracket and secure with the four fastening nuts.
Tightening torque: 10 Nm (7.5 ftlb.)
6. Push on connector for alarm horn -39- until it is felt to engage.
7. Push on connector for wiper motor -38- until it is felt to engage.
INFORMATION: Only for vehicles with TPM.
8. Push connector onto front angle sensor for headlight beam adjustment -34- until it is felt to engage.
9. Push on connectors for windscreen washer system spray nozzle, left and right -32 and 33- until they are felt to engage.
10. Connect plug connections for PASM, front left and right -30 and 31- until they are felt to engage.
11. Push B+ line -29- onto mounting point at the power distributor as far as the stop. Check B+ line sits firmly.
INFORMATION: Only for vehicles with I number 536
12. Push on connector for alarm siren -28- until it is felt to engage.
13. Push on connector for pressure switch -27- until it is felt to engage.
14. Push on connector of vertical sensor -26- until it is felt to engage.
15. Push on connector for radio antenna -25- until it felt to engage.
16. Push on connector for GPS antenna -24- until it is felt to engage.
17. Clip in wire harness for end plate under windscreen at the three retaining clips -arrow-.
INFORMATION: Only in the cabriolet.
18. Push in connector for rod antenna -23- until it is felt to engage.
19. Push on connector for tank filler neck -22-.
20. Push on connector for filler flap switching element -21- until it is felt to engage.
21. Push on connectors of front antenna for tire pressure monitoring system -19 and 20- at left and right until they are felt to engage.
22. Lay and connect ABS wire harness, front left and right -17 and 18-.
22.1. Laying ABS wire harness
22.2. Tighten fastening screw of connector socket.
Tightening torque: 10 Nm (7.5 ftlb.)
22.3. Lock the plug connection securely.
23. Push through main wire harness in direction of luggage compartment.
24. Fit grommets -16- left and right.
25. Clip in wire harness to CD changer/navigation unit -arrows-.
26. Clip in wire harness to loudspeaker amplifier -Arrows A- and fix with new adhesive tape -Arrow B-.
27. Clip in wire harness for front end control unit -arrow-.
28. Push on connector for tire pressure monitoring system control unit -15- until it is felt to engage.
29. Push on connector for brake fluid sender -14- until it is felt to engage.
30. Push on connector for hydraulic unit -13- and lock it.
31. Push together plug connection between main wire harness and front-end wire harness, left -12- until it engages securely. Clip in connector socket.
32. Secure ground point left -11-.
32.1. Connect ground straps and tighten fastening nut.
Tightening torque: 9 Nm (6.5 ftlb.)
33. Push connector onto fuse box for fan -2-.
33.1. Push connector onto fuse box for fan -Arrow A-.
33.2. Close lid -Arrow B- until it is felt to engage.
33.3. Position bottom of fuse box for fan on the clip -Arrow C- and clip in -Arrow D-.
34. Push together plug connection between main wire harness and front end wire harness, right -1-.
34.1. Insert connector socket in the holder and turn anti-clockwise 90°.
34.2. Push together plug connection between front-end wire harness and main wire-harness right -Arrow A- and lock -Arrow B-.
Subsequent work
1. Install front roof lining.
2. Install operator control unit for garage door opener.
3. Install vehicle electrical system control unit.
4. Install relay carrier 1.
5. Install B+ line from power distributor to engine connection point.
6. Secure fuse box.
7. Install left and right scuff plate.
8. Install front seat at left and right.
9. Install heating/fresh-air unit.
10. Install dashboard.
11. Install auxiliary brake light.
12. Install rear side trim panel at left and right.
13. Install convertible top and water drip pan.
14. Install rear wheel housing liner.
15. Install relay carrier.
16. Install rear luggage-compartment lining.
17. Install tank for windscreen washer system.
18. Install front cover.
19. Install front wheel housing liner on left and right.
20. Installing front-end control unit
21. Install trim panels for front luggage compartment.
22. Install loudspeaker amplifier.
23. Install navigation unit with retaining frame.
24. Install CD changer.
25. Install plenum panel cover.
26. Install battery.