Replacing Sub-Part of Fuel Level Sensor At the Rear Left
Replacing Sub-Part Of Fuel Level Sensor At The Rear Left
Tools
General warning notes
Group 20 - Fuel supply, control
WARNING:
Toxic substances
- Danger of poisoning or suffocation
- Ventilate the work area well.
- Never ingest or inhale.
- Read specific information on the Hazard Sheet.
- Wear personal protective gear.
WARNING:
Highly inflammable or explosive materials
- Danger of fire or explosion
- Avoid contact with hot parts or sources of ignition.
- Use suction to remove ignitable vapors.
- Attach warning sign in a clearly visible position.
INFORMATION:
- Absorb any escaping fuel using a suitable binding material or a cloth.
- Cloths which have absorbed fuel must be disposed of according to the applicable national laws.
- The fuel system must be depressurised before starting work on it.
- Only work on the fuel system in well-ventilated rooms.
- Any seals which have been removed must always be replaced.
- Do not use any sealant containing silicone or silicone spray when the injection system is open. Traces of silicone drawn in by the engine are not combusted and damage the oxygen sensors.
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
1. Disconnect the battery.
2. Drain the fuel tank fully (both sides).
NOTE:
Incorrect handling of fuel tank
- Danger of cracking or damaging the fuel tank if handling instructions are not observed.
- Drain the fuel tank fully before lowering it.
3. Remove restraining straps at the middle, left and right of the fuel tank and lower the fuel tank. Leave the fuel tank on the vehicle.
4. Unclip fuel line -1- and fuel vent line -2- on the underbody at the right of the fuel tank.
5. Remove rear seat at the left.
6. Remove carpet at the left.
Replacing sub-part of fuel level sensor at the rear left
INFORMATION: When cutting the front wire harness, make sure there is enough length of cable left to join to the new lines.
1. Cut rear left wire harness in area -x-.
2. Loosen the sub-part at the clip -B- , release and unplug the plug connections and remove the rubber sleeve -A- in the vehicle floor.
3. Make sure that all fastenings on the wire harness are released and carefully remove the wire harness by pulling it towards the underbody.
Installing sub-part of fuel level sensor at the rear left
1. Installation is performed in reverse order.
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 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.
INFORMATION: Allocation of lines - see wiring diagram.
2. Crimp the lines in area -x-.
2.1. Cut off lines in different lengths (due to the shrink-fit connections).
2.2. Slide shrink-fit hoses onto the lines.
2.3. Strip 10 mm of insulation off the wires.
2.4. Crimp lines using crimping sleeves and the hand crimping pliers from the repair kit for wire harnesses Nr.155-1.
2.5. 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 harnesses) so that they are watertight.
2.6. Wrap commercially available PVC tape all around the area of the connection points.
Subsequent work
1. Fit carpet.
2. Install rear seat at the left.
3. Lift up the fuel tank and fit restraining straps at the middle, left and right.
4. Clip in fuel line -1- and fuel vent line -2- on the underbody at the right of the fuel tank -arrow-.
5. Fill the fuel tank.
6. Connect the battery.