Fuel Injectors

Fuel Injectors

Removing

• Observe the safety precautions. Refer to => [ Safety Precautions ] Multiport Fuel Injection.

• Observe the rules for cleanliness. Refer to => [ Clean Working Conditions ] Multiport Fuel Injection.

- First, check whether a coded radio is installed. If necessary, obtain the anti-theft code.

- With ignition switched off, disconnect the battery ground (GND) cable.

- Remove the engine cover.

CAUTION!
Fuel system is under pressure!

• Wear protective goggles and protective clothing to prevent injuries and contact with skin.

• Before loosening the line connection, place a cloth around the connection point. Then release pressure by carefully loosening the line connection.

- Disconnect the ventilation line - 2 - and fuel supply line - 3 -. Catch any draining fuel with a clean cloth.





• Press the securing ring to disengage the lines.

- Disconnect all connectors - 1 - from the fuel injectors as well as connectors - 2 and 6 -.





- Remove the wiring harness - 3 - from the transport strap.

- Pull all clamps - 4 - and retaining ring - 5 - from the locking mechanism.

- Remove bolts - 7 - and remove the transport strap.

- Remove bolts - 1 - and pull the fuel rail with injectors evenly out of the intake manifold.





- Seal or cover the openings in the intake manifold.

- Pull off the retaining clips - 3 - and then the injectors.

Installing

- Install new O-rings for the injectors and lubricate them lightly with clean engine oil.

- Press the injectors into the fuel rail so that the tabs - 1 and 2 - align.





- Slide the retaining clip - 3 - as shown into the groove of the injector. Collar - 4 - must be located correctly in the cutout of the retaining clip on both sides.

- After assembling, check all injectors for correct installation.

- Install the fuel rail with secured injectors to the intake manifold and press it in uniformly.

- Secure the fuel rail to the intake manifold.

The rest of the installation follows the reverse of the removal procedures. When doing this note the following:

- Bleed the fuel supply system. Refer to one of the following:

• Engine code BPS, refer to => [ Fuel System, Bleeding ] Description and Operation.

• Engine code BPR, refer to => [ Fuel System, Bleeding ] .

- Connect the battery.

Tightening Specifications