Really?....it appears from the photos that the recess for the covers to clip onto is there. I'm sure they had covers right to the very end on the M119 engine.
Well I used to think that but I've been going through wiring diagrams for the ME-SFI ignition for another problem and it appears the SL60 took the M119 changes from 08/95 onwards - at least on European models, not USA or Jersey.