Installing Carbon Canister

Installing Carbon Canister

General warning notes

Fuel supply, control

DANGER:
Danger of poisoning from fuels.
- Gasoline is toxic.
- Inhaling vapours can cause irritation of the mucous membranes and eyes.
- It can be carcinogenic. It represents a serious risk to health when inhaled, touched or swallowed over longer periods.
- Only work on the fuel system in well-ventilated rooms.
- Wear protective gloves that are fuel-resistant.
- Wear a breathing mask with active charcoal filter; do not breathe in any fuel vapours.
- Ensure that there is adequate ventilation and extract all fuel vapours.
- Before opening the fuel lines or fuel hoses, relieve the fuel pressure.
- Collect escaping fuel, absorb it if necessary with a suitable binding material and dispose of properly.
- Pay attention to cleanliness when working on the fuel system.

DANGER:
Danger of fire from fuel.
- Keep clear of ignition sources.
- Do not smoke.
- Disconnect battery.
- Danger of fire due to naked flames and sparks, e.g. during welding or grinding work.
- Danger of fire due to escaping fuel, e.g. on hot engine components or due to electrostatic charge. Allow engine to cool down.
- Secure the vehicle, e.g. with a warning sign.
- Change any clothing soaked with fuel immediately.
- In case of fire, use CO2 or dry powder fire extinguishers.

NOTE:
- The ignition must be switched off when working on the fuel system.
- 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.

Component information

ATTENTION:
Risk of damage.
- There is a risk of leaks if the overflow line on the fuel filler neck is above the valve.
- Make sure that the line runs below the valve.







NOTE:
- The repair procedure may vary depending on engine type and country equipment. This relates in particular to components in the right wheel housing.
- The description relates to ORVR vehicles.

The following exploded drawing shows the attachment of the tank filler neck and carbon canister in the right wheel housing.







Installing carbon canister
1. Replace the ground cable tie-wraps on the carbon canister and pre-assemble the ground cable. Lift the carbon canister into the wheel housing.
2. Join all lines on the carbon canister and degassing tank at the plug connections.
3. Carefully mount the 2 electric connectors -3- on the carbon canister and on the leak diagnosis pump and the hose on the connection piece -2- of the leak diagnosis pump (USA). Then connect plastic line -1-.







4. Insert the hose on the degassing tank.







ATTENTION:
Risk of damage
- There is a risk of leaks if the overflow line on the fuel filler neck is above the valve.
- Make sure that the line runs below the valve.

5. Swivel carbon canister down into installation position from behind. Make sure that the fuel overflow line -1- is below the solenoid valve -2-. If the line is not routed correctly, this will cause damage during subsequent operation.

Picture shows the correct position of the line. View from above without rear side panel.







6. Tighten the 5 fastening screws on the carbon canister and the 2 on the degassing tank in the right wheel housing -arrows-. Tightening torque: 7.5 ftlb.







Subsequent work
1. Install the right rear wheel housing liner.

















2. Mount rear wheel.
3. Connect ground cable to fuel filler neck. Screw down the 2 fastening screws and mount rubber sleeve around the tank filler neck. Tightening torque: 7.5 ftlb.







4. Screw on tank cap.
5. Activate air suspension.