Sl55 Injectors

[00slk]

Would anyone know the part number for the injectors on my SL55 R230.
They are starting to misbehave this morning and a live scan show some inconsistency......Number 6 and one other is fine
Many thanks

 

[00slk]

I think I have found the part numbers, not a cheap part to replace

 

[peterws1957]

I think I have found the part numbers, not a cheap part to replace

Might it be worth getting the injectors tested before considering replacement?