Well...I just took my '94 E34 525 in and got whallupped with a $1200 bill to do some general maintenance as well as replace the front brakes (and rotors), replace a front fog light assembly, and replace the control arm bushings. Just the nature of the beast I guess.
Anyway, there were three things they didn't get to that I would like some input on.
1) Bouncy idle - While the car is warming up and even moreso on a hot restart, the idle will bounce from 400RPM up to 700RPM. It sounds like I'm using my foot to rev the engine. Once the car is running at normal temperature, it does not do it. About a year or so ago the previous owner had to have all the air intake part replaced becuase something got cracked and cold air was getting in and it was basically un-driveable...Now, what's interesting as I'm thinking about this more is that this problem has been going on for a long time...If there was a lose clamp wouldn't the idle be jumpy all the time? I was thinking it might be an O2 sensor going bad, but I'm not getting any check engine lights...
2) My rear air vents blows cold. In the winter time it blow super cold air, but when I'm running the AC I'm pretty sure it blows cold air then, too. Could there be a valve that is stuck and not letting any warm air get into the mix for the rear vent?
3) The lights that light up the temperature and fan controls on the dash work 1% of the time at most. I think I've seen them on maybe 3 times since I've had the car. Typically I'll hit a little bump or something and then they'll pop on, but it's unusual. Hitting the controls does not turn them on. Any thoughts on what I'd need to do to fix it? I haven't taken the dash apart on this car so I'm not sure it's worth attempting.
Thanks!!!