Member
Am new to world of BMW and I was wondering if my 04 325xi should run cool, the temp gauge never went to the 12:00 position, it is 30 degrees here, the coolant is full and bled and I do get heat, any help would be appreciated thanks
Diesel Fitter
Temp needle should rise to vertical after driving for about 15 minutes regardless of outside temp. If it's not, then the t-stat is likely stuck open.
Originally Posted by B4SH
Member
Did a test just now in town the needle goes to vertical, but out at highway speed the needle falls back to about 10:00 position
Diesel Fitter
Probably still the t-stat.
Member
OP, Google "BMW E46 hidden obc functions." Test #7 will show you the temperature seen by the ECU. After 15 minutes of driving it should read between 95*C to 100*C. If it's below that the thermostat is failing. Replace it with one made by either Walher or Behr. DO NOT INSTALL AFTERMARKET COOLING SYSTEM PARTS.
Member
Today I drove the car and had the coolant temp (7) on the dash and it only got to 54 degrees thanks Marco, time for a coolant rebuild
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