Quiz for everyone
 

What was the first Mercedes car model/year that has (automatic) hydraulic valve lifters?


Eric

My guess is the 75 or 76 M117 (450SEL/SL) in the US. The same engine might have been available earlier in Europe.

I don't know if the M100 had hydraulic adjusters earlier or ever.

Sixto
91 300SE
87 300SDL
83 300SD

1976 450SEL/SL

Dear Sixto and M.B.DOC:

You are absolutely right.

BTW, is there any reason why hydraulic lifters are not available in much later models such as W123 (1980-1985) etc....? Having
to manually adjust the valve lashes periodically is not a good idea.

Best regards,

Eric

I think hydraulic adjusters were available in the M102 which powered the W123 200 and 230E which were not available in the US. I don't know if the M123 had hydraulic adjusters. The M123 was not available in the US either.

Sixto
91 300SE
87 300SDL
83 300SD