Well it hasn't been incredibly warm (15*F) around here lately and I got the honor of driving home tonight without any heat (ok the seat heaters did work ). For the last week I haven't had much and it is really getting on my nerves (it is a bunch of things but I'd like to solve this one first). It used to mess with me a little bit so I opened up the climate control and it seemed to work flawless for a while then this came....

The climate control does a great job of managing fan speed when it is running in auto mode, the brushes on the fan appear fine (fan isn't getting any voltage), the monovalve appears to be doing its job as I don't lose heat while driving faster and it also limits my fan to a very low speed until the system is warm enough. I do hear a little extra clicking from time to time which I don't have much of an explanation for, hitting the climate control doesn't seem to help even though quite often the problem can be triggered by a earth crater in that thing with lines on it (road? or path? ). However earlier today I was stopped at a light and it decided to work and did so for the next 30mins (until I shut the car off) but next time it didn't work at all. It seems to change its mind when restarting the car however messing with the key has never got it to come back on. A few times ago it shut off the instant I turned the blinker on (hinting a ground problem?!). Are there any ways to test that coil on the passenger side fender. I'd like to know which part isn't doing its job.... Any clues or suggestions would be very appreciated.

Thanks,

__________________
Jeff M.
Mercedes W123 DIY pages are now located here.
1983 / 1984 300D Sold
2000 CLK430 Cabriolet ~58k Sold
2005 Avalanche 4x4 ~66k