Heat/air issue, and door won't close in cold - Bimmerfest - BMW Forums

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Old 12-28-2009, 02:03 PM
hayyan hayyan is offline
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Location: Chicagi
Join Date: Dec 2008
Posts: 2
Mein Auto: E38 1998
Heat/air issue, and door won't close in cold

Hi guys I have 2 major issues going on with my 1998 740IL

1. Even though the temp Knob in dash is on cold ( Blue) when ever feet/upper button is pressed I still get hot air coming out, sometimes I get hot air coming underneath the seat. So After playing around I have either user auto or straight button ( air would come straight to your face) in order to over the heat issue. Since its winter I don't mind it is big problem in winter. Also sometimes I get only cold air if straight to your face button is pressed so I have either use feet or upper button to get heat.

2. Driver side door is not shutting down when it is really cold , I have googled it but not found a satisfactory solution. Some say use UD-40 or silcion base solution which I have but it didn't work. Any suggestions or do I have change my latch.


Old 03-14-2010, 05:57 AM
jimmyb jimmyb is offline
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Location: Massachusetts
Join Date: Jan 2010
Posts: 3
Mein Auto: 1995 740il
for the cold air in the face make sure the adjuster on the dash is rotated towards the red more than the blue.
i have also had a problem with driver side door not latching. i used a dry lubricant called poxylube and it worked great. sprays like wd-40 will give you problems later as it tends to collect dust and dirt. hope this helps.

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