The original cluster in our 1989 190E 2.6 started to malfunction after 230,000 miles with a bouncy tach and the temp gauge sticking at 40. I picked up a junkyard 4 cylinder dash from what I believe was a 1991 and I've been having issues with the oil pressure always reading full when the dash has power. We don't really care about warning lights and tun signal indicators as this is now a track only car.

Is the pinout different for different years and engines? Does anyone have experience repining the 15 pin connector to make the different clusters work? I've tried with no success and can't figure out how to make the oil pressure function normally. Detailed diagrams may help.

At this point I may just try and find a dash from the same year and engine.

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Current:
'74 450SLC
'89 190E
'95 E420

Previous:
'94 E320
'87 300E
'73 350SL
'75 450SL
'95 C36
'99 C43 55 swap