How do you replace fuel injectors on a Mercedes 300E?

An excerpt from the manual:

1. Remove the air cleaner assembly and attached hoses.

2. Remove the injection lines from the fuel distributor and the injectors.

3. Remove the mounting screws and injector retainers.

4. Pull out the fuel injector.

5. Remove the rubber sealing ring.

6. Reinstall in reverse manner.

Hope this helps