Operation CHARM: Car repair manuals for everyone.

970909 Loosening and securing main wire harness in engine compartment at the left


WM 970909 Loosening and securing main wire harness in engine compartment at the left

Technical values





Information

The main wire harness is manufactured individually depending on equipment.
- Fastening elements may be different from the parts described.
- The number of plug connections can vary, depending on equipment.

Preliminary work

Preliminary work for main wire harness in engine compartment at the left

1. Disconnect the battery. -> 2X00IN General information on disconnecting the battery Procedures
2. Remove left cross panel. -> 508119 Removing and installing cross panel - section on "Removing" Service and Repair
3. Remove left air-cleaner box. -> 242519 Removing and installing air cleaner housing - section on "Removing"
4. Remove main headlight at the left. -> 941519 Removing and installing main headlights - section on "Removing" 941519 Removing and installing main headlights
5. Remove side direction indicator light at the left. -> 945319 Removing and installing side direction indicator light - section on "Removing" Service and Repair
6. Remove left front wheel housing liner. -> 505619 Removing and installing front wheel housing liner - section on "Removing" Service and Repair
7. Remove primary catalytic converter at the left. -> 267619 Removing and installing primary catalytic converter - section on "Removing"

Loosening main wire harness in engine compartment at the left

NOTICE

Voltage peaks

- Risk of damage to load or to the control unit

-> Switch off ignition and remove remote control before disconnecting or removing load.

Information

Always comply with the regulations for handling ESD-sensitive components!

- Assembly work must only be carried out if the mechanic is wearing the working clothes and shoes approved by Porsche.

- The new part must only be removed from the ESD (electrostatic discharge) protective packaging just before installation and at the position at which the part is to be installed.

- Never touch the electric pins and plug contacts.





Overview of main wire harness in engine compartment at the left





1. Screw off fastening nut on the ground point -1- on the wheel housing (behind headlight).
2. Release and unplug electric plug connection for connection point to front wire harness -2-.
3. Release and unplug electric plug connection for the ABS wire harness -3- in the wheel housing. -> 976519 Removing and installing wire harness for ABS - section on "Removing" 976519 Removing and installing wire harness for anti-lock brake system (ABS)
4. Release and unplug electric plug connection for level sensor -4-. -> 431855 Replacing front level sensor - section on "Removing" 431855 Replacing front level sensor
5. Release and unplug electric plug connection for Tyre Pressure Monitoring (TPM) transmitter -5-. -> 443619 Removing and installing transmitter (trigger) for Tyre Pressure Monitoring system (TPM) - section on "Removing"
6. Release and unplug electric plug connection for additional coolant pump -15-.





Installation position of connector for additional coolant pump and cooling water valve unit

7. Release and unplug electric plug connection for cooling water valve unit -16-.
8. Release and unplug electric plug connection for sensor for body -14-. -> 433419 Removing and installing sensor for body - section on "Removing"
9. Release and unplug electric plug connection for spring strut -6- (next to power-steering reservoir).
10. Release and unplug electric plug connection on steering -8- (in universal joint area).
11. Loosen relay box.





Loosening relay box

11.1. Unscrew four fastening screws -13-.
11.2. Release and unplug electric plug connections -12- on main wire harness in engine compartment.





Removing relay box

11.3. Pull main wire harness for engine compartment out of the bracket at the relay box -A-.
11.4. Remove relay box by pulling it up. The relay box is clipped in at the underside with three catches.
12. Release and unplug electric plug connection on brake light switch -9-. -> 943619 Removing and installing brake light switch - section on "Removing". Service and Repair
13. Release and unplug electric plug connection for brake fluid reservoir level indicator -10-.





Fastenings for main wire harness in engine compartment at the left





14. Remove heat shield -1- between primary catalytic converter and wheel housing.
14.1. Unscrew six fastening screws.
15. Loosen fastenings -2- for wiring for steering.
16. Loosen fastenings -3- for wiring for cooling water valve unit.
17. Loosen fastenings -4- for main wire harness in engine compartment.
18. Pull rubber sleeve -5- in cross panel out of the body.
19. Loosen fastenings -6- for main wire harness in plenum panel.

Securing main wire harness in engine compartment at the left





Overview of main wire harness in engine compartment at the left





1. Installation is performed in reverse order.
2. First lay the main wire harness loosely in the wheel housing and engine compartment, ensuring that it is positioned correctly.





Fastenings for main wire harness in engine compartment at the left





3. Slide rubber sleeve in cross panel -5- into the body.
4. Fit fastenings -6- for main wire harness in plenum panel.
5. Fit fastenings -4- for main wire harness in the engine compartment.
6. Fit fastenings -2- for wiring for steering.
7. Fit fastenings -3- for wiring for cooling water valve unit.
8. Fit heat shield -1- between primary catalytic converter and wheel housing.
9. Plug in electric plug connections -2 - 16- until they engage securely.
10. Tighten fastening nut on ground point -1- to => Tightening torque: 9 Nm (6.5 ftlb.).

Subsequent work

Subsequent work for main wire harness in engine compartment at the left

1. Install primary catalytic converter at the left. -> 267619 Removing and installing primary catalytic converter - section on "Installing"
2. Install front left wheel housing liner. -> 505619 Removing and installing front wheel housing liner - section on "Installing" Service and Repair
3. Install side direction indicator light. -> 945319 Removing and installing side direction indicator light - section on "Installing" Service and Repair
4. Install main headlight at the left. -> 941519 Removing and installing main headlights - section on "Installing" 941519 Removing and installing main headlights
5. Install left air-cleaner box. -> 242519 Removing and installing air cleaner housing - section on "Installing"
6. Install left cross panel. -> 508119 Removing and installing cross panel - section on "Installing" Service and Repair
7. Connect the battery. -> 2X00IN General information on disconnecting the battery Procedures