Could there be a connection between any of this lot:
ABS light sometimes stays on. Stopping and turning the ignition off and on again resets it and then it can be alright for weeks.
The wipers sometimes won't start except in the full speed position, but then switching to a lower speed is OK.
The heater blower started playing up last week - occasionally it won't come on at all, or the fan speed drops. Mostly it's OK, though it has been a noisy for a while. Just worn bearings maybe?
Before cleaning the car (doesn't a year just fly by), I put the spoiler up using the under-dash switch and now it won't go back down. It hasn't been making any graunching noises as if it needs lubricating. The fuses are OK.
I wondered if the load reduction relay might be involved, but decided not as it clicks healthily when I turn the ignition key.
The rev counter needle often flicks about, or goes back to zero for a while, but works some of the time (thought it was the wobbly pin on the back, but the resistance across my test meter doesn't change when I wiggle it.)
It seems strange that these things are happening one after the other, but I suppose it could be just corradoincidence?
('92 G60 85 000 miles)