970955 Sub-part - replacing wire harness in engine compartment at the front right
WM 970955 Sub-part - replacing wire harness in engine compartment at the front right
Tools
Technical values
Preliminary work
1. Disconnect battery. -> 2706IN Work instructions after disconnecting the battery Procedures
2. Remove the carrier for the instrument panel. -> 701219 Removing and installing carrier for instrument panel - section on "Removing" 701219 Removing and installing bracket for dashboard
3. Remove heater/air-conditioning unit. -> 851519 Removing and installing heater/air-conditioning unit - section on "Removing" 851519 Removing and Installing Heater/Air-Conditioning Unit
4. Remove linings in engine compartment. -> 700219 Removing and installing front cover (engine compartment) - section on "Removing" 700219 Removing and installing front trim (engine compartment)
5. Remove front right wheel housing liner. -> 505619 Removing and installing front wheel housing liner - section on "Removing" Service and Repair
6. Remove main headlight. -> 941519 Removing and installing main headlight - section on "Removing" 94151900 Removing and installing main headlights
7. Remove front apron. -> 631519 Removing and installing front apron - section on "Removing"
8. Remove air cleaner housing. -> 242519 Removing and installing air cleaner housing - section on "Removing" Service and Repair
9. Remove coolant expansion tank. -> 194019 Removing and installing coolant expansion tank - section on "Removing" Service and Repair
10. Remove filler neck on tank for windscreen washer system. -> 926019 Removing and installing tank for windscreen washer system - section on "Removing" Service and Repair
11. Remove DME control unit. -> 247019 Removing and installing DME control unit - section on "Removing" Service and Repair
12. Remove cowl panel cover. -> 664419 Removing and installing cowl panel cover - section on "Removing" Service and Repair
Sub-part - removing wire harness in engine compartment at the front right
Installation position of sub-part - wire harness in front right of engine compartment
1. Remove fabric tape and tie-wraps in area -a- (above cut-out for fresh-air intake system for heater/air-conditioning unit) and expose the remaining lines.
Cutting off and exposing front right wire harness
Information
When cutting the front wire harness, make sure there is enough length of cable left to join to the new lines.
2. Cut off front right wire harness in area -b- (left, next to cut-out for fresh-air intake system for heater/air-conditioning unit).
3. Remove support for DME control unit.
3.1. Screw off fastening nut -1- and remove the ground straps together with the twist lock -arrow-.
Loosening ground straps
3.2. Open retaining clip -arrow A- and remove wire harness for DME control unit -arrow B-.
Removing support for DME control unit
3.3. Unscrew fastening screw -2- and the two fastening nuts -3- and remove support for DME control unit -arrow-.
4. Remove intake manifold for heater/air-conditioning unit.
4.1. Pull out retaining clip on wire harness at the intake manifold -arrow A- and unclip wire harness on the intake manifold -arrow B-.
4.2. Pull out air inlet grille -arrow C-.
4.3. Open retaining clips in the intake manifold -arrow D-.
4.4. Screw off fastening nuts -1- and remove intake manifold -arrow-.
Removing intake manifold for heater/air-conditioning unit
5. Remove right firewall.
Removing firewall
5.1. Remove oxygen sensor connector -1- from the support at the firewall and disconnect it. -> 246919 Removing and installing oxygen sensor ahead of catalytic converter - section on "Removing" 246919 Removing and installing oxygen sensors ahead of catalytic converter on DFI engines-> 247319 Removing and installing oxygen sensor behind catalytic converter - section on "Removing" 247319 Removing and installing oxygen sensor behind catalytic converter on DFI engines
5.2. Unclip wire harness at the retaining clip -2-.
5.3. Unscrew fastening screws -3- on the firewall.
5.4. Lift the firewall and seal up and off.
6. Release connector on airbag sensor at the right -1- and pull it off. -> 695119 Removing and installing airbag sensor - section on "Removing" 695119 Removing and installing airbag sensor
7. Loosen ground strap for front right cross member -2-.
Loosening ground strap for front right cross member
7.1. Screw off fastening nut on front cross member and remove ground straps together with the twist lock from the threaded bolt -arrow A-.
7.2. Unclip wire harness at the retaining clip -arrow B-.
8. Unclip wire harness at the retaining clips close to the mounting for the right headlight -arrows-.
Unclipping wire harness close to mounting for right headlight
9. Release connector on TPM transmitter (trigger) at the right -7- and pull it off. -> 44361900 Removing and installing transmitter (trigger) for Tyre Pressure Monitoring system (TPM) - section on "Removing" 44361900 Removing and Installing Transmitter (Trigger) For Tire Pressure Monitoring (TPM)
10. Pull off connector on angle sensor for range adjustment -8-.
Pulling off connector on angle sensor for range adjustment
10.1. Release connector on angle sensor for range adjustment at the right wheel suspension -arrows A- and pull it off -arrow B-.
11. Release plug connection on tank for windscreen washer system -9- and disconnect it. -> 92601900 Removing and installing tank for windscreen washer system - section on "Removing" Service and Repair
12. Pull off plug connection for ABS sensor and brake pad wear indicator on the right -10-.
Pulling off plug connection for ABS sensor and brake pad wear indicator
12.1. Release plug connection for ABS sensor and brake pad wear indicator in the right wheel housing -arrow A- and pull it off -arrow B-.
12.2. Unclip connector socket for ABS sensor and brake pad wear indicator -arrow C-.
12.3. Unclip wire harness at the three retaining clips -arrow D-.
13. Pull off connector on right lateral acceleration sensor -11-.
Pulling off connector on lateral acceleration sensor
13.1. Release connector on lateral acceleration sensor in the right wheel housing -arrow A- and pull it off -arrow B-.
13.2. Unclip wire harness at the retaining clip -arrow C-.
14. Loosen wire harness on upper right side member.
14.1. Pull wire harness on upper side member down out of the clips -arrows A-.
14.2. Unclip wire harness at the retaining clips -arrows B-.
Loosening wire harness on upper right side member
15. Unclip wire harness with the retaining clip on the upper side member -arrow-.
Unclipping wire harness on upper side member
16. Loosen ground strap for right firewall -13-.
Loosening ground strap
16.1. Screw off fastening nut on the right firewall and remove ground strap together with the twist lock from the threaded bolt -arrow-.
17. Unclip wire harness at the retaining clip -arrow A- and remove rubber sleeve from the bulkhead -arrow B-.
Removing rubber sleeve from the bulkhead
18. Pull off connector on hydraulic unit -14- and remove rubber sleeve -15-.
Pulling off connector on hydraulic unit
18.1. Release connector on hydraulic unit -arrow A- and pull it off -arrow B-.
18.2. Unclip wire harness at the three retaining clips -arrows C-.
18.3. Remove rubber sleeve on the right firewall in direction of the engine compartment -arrow D- and remove the front right wire harness.
Sub-part - installing wire harness in engine compartment at the front right
Installation position of sub-part - wire harness in front right of engine compartment
1. Fit rubber sleeve -15- and plug in connector on hydraulic unit -14-.
Plugging in connector on hydraulic unit
1.1. Push front right wire harness through from the engine compartment towards the interior and fit rubber sleeve on the right firewall -arrow A-.
1.2. Route wire harness in plenum panel and clip it in at the three retaining clips -arrows B-.
1.3. Plug in connector on hydraulic unit -arrow C- and lock it -arrow D- until the locking mechanism engages securely.
2. Press rubber sleeve into the bulkhead -arrow A- and clip in wire harness with the retaining clip -arrow B-.
Pressing rubber sleeve into bulkhead
3. Screw on ground strap for right firewall -13-.
Securing ground strap
3.1. Connect ground strap together with the twist lock to the threaded bolt on the right firewall -arrow- and secure it with the fastening nut. => Tightening torque: 9 Nm (6.5 ftlb.)
4. Clip in wire harness on the upper side member with the retaining clip -arrow-.
Clipping in wire harness on upper side member
5. Secure wire harness on upper right side member.
5.1. Route wire harness and clip it in at the retaining clips -arrows A-.
5.2. Push wire harness on upper side member onto the clips -arrows B-.
Securing wire harness on upper right side member
6. Plug in connector on right lateral acceleration sensor -11-.
Plugging in connector on right lateral acceleration sensor
6.1. Plug in connector on lateral acceleration sensor in right wheel housing -arrow A- until the connector engages securely.
6.2. Route wire harness and clip it in on the wheel housing with the retaining clip -arrow B-.
7. Connect plug connection for ABS sensor and brake pad wear indicator at the right -10-.
Connecting plug connection for ABS sensor and brake pad wear indicator
7.1. Route wire harness and clip it in at the right wheel housing with the retaining clips -arrow A-.
7.2. Clip in connector socket for ABS sensor and brake pad wear indicator -arrow B-.
7.3. Connect plug connection for ABS sensor and brake pad wear indicator -arrow C- until the plug connection engages securely.
8. Connect plug connection on tank for windscreen washer system -9- until the plug connection engages securely. -> 92601900 Removing and installing tank for windscreen washer system - section on "Installing" Service and Repair
9. Plug in connector on angle sensor for range adjustment -8-.
Plugging in connector on angle sensor for range adjustment
9.1. Push connector onto angle sensor for range adjustment at the right wheel suspension until the connector engages securely.
10. Plug in connector on TPM transmitter (trigger) at the right -7- until it engages securely. -> 44361900 Removing and installing transmitter (trigger) for Tyre Pressure Monitoring system (TPM) - section on "Installing" 44361900 Removing and Installing Transmitter (Trigger) For Tire Pressure Monitoring (TPM)
11. Clip in wire harness at the retaining clips close to the mounting for the right headlight -arrows-.
Clipping in wire harness close to mounting for right headlight
12. Secure ground strap for front right cross member -2-.
Securing ground strap for front right cross member
12.1. Route wire harness and clip it in on the front side member with the retaining clip -arrow A-.
12.2. Push ground straps together with the twist lock onto the threaded bolt on the front side member -arrow B- and screw on the fastening nut. => Tightening torque: 9 Nm (6.5 ftlb.)
13. Plug in connector on airbag sensor at the right -1- until the connector engages securely. -> 695119 Removing and installing airbag sensor - section on "Installing" 695119 Removing and installing airbag sensor
14. Install right firewall.
Installing firewall
14.1. Fit seal on the body and spray with silicon spray.
14.2. Fit firewall and position it correctly.
14.3. Screw in fastening screws -3-.=> Tightening torque: 9 Nm (6.5 ftlb.)
14.4. Clip in wire harness with the retaining clip -2-.
14.5. Connect oxygen sensor connectors -1- until they engage securely and clip oxygen sensor connectors into the support -1-. -> 246919 Removing and installing oxygen sensor ahead of catalytic converter - section on "Installing" 246919 Removing and installing oxygen sensors ahead of catalytic converter on DFI engines-> 247319 Removing and installing oxygen sensor behind catalytic converter - section on "Installing" 247319 Removing and installing oxygen sensor behind catalytic converter on DFI engines
15. Install intake manifold for heater/air-conditioning unit.
15.1. Position intake manifold -arrow- and secure with the fastening nuts -1-. => Tightening torque: 6 Nm (4.5 ftlb.)
15.2. Close retaining clips in the intake manifold -arrow A-.
15.3. Insert air inlet grille -arrow B-.
15.4. Clip in wire harness on the intake manifold -arrow C- and push in retaining clip for wire harness on the intake manifold -arrow D-.
Installing intake manifold for heater/air-conditioning unit
16. Install support for DME control unit.
16.1. Position support for DME control unit -arrow- and secure with the fastening nuts -3- and fastening screw -2-. => Tightening torque: 8 Nm (6.0 ftlb.) => Tightening torque: 8 Nm (6.0 ftlb.)
Installing support for DME control unit
16.2. Insert wire harness for DME control unit into the retaining clip -arrow A- and close the retaining clip -arrow B-.
16.3. Fit ground straps together with the twist lock onto the stud -arrow- and secure with the fastening nut -1-. => Tightening torque: 9 Nm (6.5 ftlb.)
Securing ground straps
Information
Select a place for the joint where there is enough space to join all the lines present.
Do not cut the lines too short in case they have to be laid in a different position if there is insufficient space in the area of the joint.
Information
The electric lines are located in the plenum panel and are thus exposed to the highest demands.
The greatest care must be used in the individual work steps for stripping insulation from, crimping, and shrinking/insulating the electric lines.
The procedure for stripping insulation from, crimping, and shrinking/insulating the electric lines must be complied with and observed. The procedures are described in detail in the Repair kit for Cayenne harnesses NR.155-2.
Crimping samples are to be prepared before beginning work.
17. Crimp the lines in area -a- (above cut-out for fresh-air intake system for heater/air-conditioning unit).
Connecting and routing front right wire harness
17.1. Cut off lines in different lengths (due to the shrink-fit connections).
17.2. Slide shrink-fit hoses onto the lines.
17.3. Strip 10 mm of insulation off the lines.
17.4. Crimp lines using crimping sleeves and the hand crimping pliers from the repair kit for wire harnesses NR.155-1.
17.5. Slide the shrink-fit hoses over the crimp connections and carefully shrink them using the hot-air blower with special nozzle (recommended accessories for the repair kit for wire harnesses) so that they are watertight.
17.6. Wrap commercially available PVC tape all around the area of the connection points.
17.7. Secure the repaired area -b- to the main wire harness with tie-wraps.
Subsequent work
1. Install cowl panel cover. -> 664419 Removing and installing cowl panel cover - section on "Installing" Service and Repair
2. Install DME control unit. -> 247019 Removing and installing DME control unit - section on "Installing" Service and Repair
3. Install filler neck on tank for windscreen washer system. -> 926019 Removing and installing tank for windscreen washer system - section on "Installing" Service and Repair
4. Install coolant expansion tank. -> 194019 Removing and installing coolant expansion tank - section on "Installing" Service and Repair
5. Install air cleaner housing. -> 242519 Removing and installing air cleaner housing - section on "Installing" Service and Repair
6. Install front apron. -> 631519 Removing and installing front apron - section on "Installing"
7. Install main headlight. -> 941519 Removing and installing main headlight - section on "Installing" 94151900 Removing and installing main headlights
8. Install front right wheel housing liner. -> 505619 Removing and installing front wheel housing liner - section on "Installing" Service and Repair
9. Install linings in engine compartment. -> 700219 Removing and installing front cover (engine compartment) - section on "Installing" 700219 Removing and installing front trim (engine compartment)
10. Install heater/air-conditioning unit. -> 851519 Removing and installing heater/air-conditioning unit - section on "Installing" 851519 Removing and Installing Heater/Air-Conditioning Unit
11. Install the carrier for the instrument panel. -> 701219 Removing and installing carrier for instrument panel - section on "Installing" 701219 Removing and installing bracket for dashboard
12. Carry out work instructions after disconnecting the battery. -> 2706IN Work instructions after disconnecting the battery Procedures