Thread: what does the heater work on level 4 only?
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Old 05-15-2013, 07:02 PM   #2
DET1990
3rd Gear Member
 
Join Date: May 2012
Location: mississauga
Posts: 368
Car: e36 332i
Most likely blower motor resistor pack I'm not too sure about the e30 but it happens on the e36 so that's some thing you can look into
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