Fuel Level Sensor 4
Fuel Level Sensor 4
Special tools, testers and auxiliary items required
• Pry Lever - Rmv Outside Mirror (80 - 200)
• Wrench (T10202)
Removing
- Observe safety precautions. Refer to => [ Safety Precautions ] Safety Precautions.
- Observe rules for cleanliness. Refer to => [ Clean Working Conditions ] Clean Working Conditions.
• During installation, all cable ties must be installed at the same location.
- Slide the seats forward as far as possible. Then fold the backrest forward.
CAUTION!
Danger due to escaping fuel.
• To prevent large quantities of fuel from escaping when removing fuel level sensor 4 (G393), fuel tank may only be a maximum of 1/4 full.
- Empty the fuel tank if necessary. Refer to => [ Fuel Tank, Draining ] Fuel Tank, Draining.
CAUTION!
Risk of destroying electrical components when battery is disconnected.
• Observe measures when disconnecting battery.
- With the ignition switched off, disconnect the battery ground (GND) cable - arrow -.
- Open fuel filler flap briefly and then close again.
R8 Coupe
- Remove the rear shelf.
- Remove side trim panel.
- Remove the positive wire - 4 -.
- Disconnect the electrical connectors - 3 - on the connector station and remove the connector station from the control module bracket and lay it to the side.
- Remove the right rear relay and fuse carrier from the control module bracket and lay it aside - arrows -.
• Ignore - 1, 2 and 5 -.
- Disconnect the control module electrical connectors and remove the control module bracket - arrow - from the vehicle.
- Press the electrical wiring harness off the rear bulkhead using (80 - 200) and free it up.
R8 Spyder:
- Remove the cover module.
All Vehicles
- Fold the insulation mat over the connection seal cover.
- Remove bolts - 1 through 4 - and remove the left locking flange cover.
- Disconnect the electrical connector - arrow - on the left locking flange.
CAUTION!
Risk of injury from fuel.
• To reduce pressure in fuel system, lay a clean cloth around the connector and carefully loosen connector.
- Disconnect the fuel lines - 1, 2, 3 - on the left locking flange by pressing the release buttons.
• Depending on the version, there may be 2 instead of 3 lines.
CAUTION!
Danger due to escaping fuel.
• For the following procedure, the fuel tank may only be 1/ 4 full maximum.
- Disconnect the left locking flange locking rings using the (T10202).
- Disconnect the fuel lines - 1, 2, 3 - on the inner side of the left locking flange by pressing the release button.
- Disconnect the electrical connectors - 4 - and - 5 - and remove the locking flange and sealing ring.
• Fuel level sensor 4 is illustrated without the fuel tank.
- Reach into the fuel tank and remove the fuel level sensor 4 by pressing locking tabs at the same time - 1 - and - 2 - out of the baffle house guide - arrow -.
- Guide the fuel level sensor 4 carefully to the fuel tank opening and disconnect the electrical connector - 1 -.
• When removing, be sure not to bend floater arm of fuel level sensor 4.
Installing
• Tightening specifications, refer to => [ Fuel Level Sensor Assembly Overview ] Fuel Level Sensor Assembly Overview, => [ Locking Flange Cover - Tightening
Specifications ] Fuel Level Sensor Assembly Overview.
Installation is in reverse order of removal, note the following:
• Replace sealing ring.
• When inserting, be sure not to bend floater arm on fuel level sensor 4.
- Install the fuel level sensor 4 in the guide in the until it audibly clicks.
- Install a new dry locking flange sealing ring.
CAUTION!
Risk of leaking.
• When inserting sealing flange, sealing ring must not be damaged or crushed.
- Bring the locking flange into the installation position.
• The tab - 2 - on left locking flange faces toward the drive direction (between the 11- and 11 o'clock positions) and must lie between tabs - 1 - and - 3 - on the fuel tank.
- Tighten the locking ring.
- Fuel Tank, Checking for Leaks. Refer to => [ Fuel Tank System, Checking for Leaks ] Fuel Tank System, Checking For Leaks
- Inspect the seal - 1 - on the locking flange covers for damage.
- If necessary, replace the seal.
- Install the connector station and the right, rear relay and fuse panel.
R8 Spyder:
- Install the cover module.
All Vehicles:
- Connect the battery and observe safety precautions after connecting battery.