Ok, all cleaned and put back together. I got the same results as before. Hook it up to 12v and hear the convenience control module/relay 'click' but nothing else.

And the 'convenience' feature is now intermittent. Or perhaps I have only started noticing it but it's been this way for some time. Sometimes the window switches work (for front windows and rear left) when the driver's door is closed...but sometimes *only* when the driver's door is open.

Shall I just assume it's the stupid relay and buy one?

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1982 240d RHD OM605 & 5spd swap


1982 240D LHD/RHD & 300TD LHD / 1983 300SD LHD / 1986 300SDL LHD / 1992 300TD RHD / 1998 C250 TD RHD


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