The OM654 piezo direct injection diesel injector for the Mercedes S-Class W223 delivers fuel at up to 2,500 bar in multiple precise injection events per cycle. Failing injectors cause rough idle, blue smoke, increased fuel consumption and DTC P0200 series codes. Includes all seals and return line.

1. XENTRY injector coding mandatory after replacement
2. 1
3. Relieve fuel rail pressure
4. 2
5. Remove engine cover and fuel rail cover
6. 3
7. Disconnect return line from injector
8. 4
9. Loosen injector clamp bolt (do not remove fully)
10. 5
11. Use injector puller to remove injector
12. 6
13. Install new copper seat washer
14. 7
15. Install new injector
16. 8
17. Reconnect return line
18. 9
19. XENTRY: code injector quantity correction values.