Two times, in the last 15 mths, the ac / heat doesn't go on but the next day it’s fine. Last night ac was fine after 30 min in the store it was only blowing @ (?) 1/2 power then within 3 blocks full power just kicks in (that happened for the 1st time last night!) I have a 2001 BMW 325i with 96,000m and the ‘service engine soon’ light has come on, went off for two mths & is now on again. Other than the screw I picked up in a tire my car runs great (I don’t drive it every day – couple of times a week). 1 other quickie; hot day, keys locked in running car a little over 1 hr, if your thermostat is bad what happens to the car? Thanks, I hope you can help. MJ (It’s going in for at least the fluids changing as soon as I find the right place!)
AC + Thermostat on 2001 BMW 325i
by Visitor in Sunland, CA on May 25, 2011
ANSWER by overbys , May 27, 2011
you have a defective blower resistor, sometimes known as the final stage. as to your thermostat question, you never want to overheat a BMW. if the temp gauge goes hot or if you see a coolant leak, do not drive the car. your thermostat can set a check engine light. my shop has had to replace several engines in BMW's just because drivers do not pay attention.
ANSWER by Visitor , June 10, 2011
YOUR PROBLEM IS TRHE FSU CONDENSER.180.00 DOLLARS FROM BMW DEALER'YOU CAN SEE AT YOU TUBE-HOW TO REPLACE IT LIKE ONE HR JOB.BUY THE ORIGINAL PARTS.FIRST TIME I FIXED MINE I USED THE ONE FROM AUTOZONE (126.00 DOLLARS).IT ONLY WORKS FOR COUPLE OF HOURS AND IT STOP WORKING