My 1999 BMW doors lock and the moon roof open on its own when the car is parked and not running.What could be the problem?

Asked by Jul 12, 2012 at 04:14 PM about the BMW 3 Series

Question type: General

3 Answers

4,585

There are many things that could cause this issue. Such as a key lock on one of the doors sticking. The other issue that is more likely the issue in your body module activating the locks and moon roof. Hope this helps and good luck with your diag.

1 of 1 people found this helpful.

The contacts in the drivers door lock cylinder are faulty. Replace the door lock cylinder and micro switches.

The only place where a request for all doors and sunroof to be opened is the drivers lock cylinder and key remote. The drivers lock cylinder is worn and contacting the micro switch causing this. If you carefully unlock the door with the key (in the lock cylinder) and center the cylinder you will see tat the problem does not occur. Secondly the key remote could only make this request when it was in range of the car. You should clear the central locking/body codes after making te repair.

Your Answer

Add photo

Related Questions

3 Series

Looking for a Used 3 Series in your area?

CarGurus has 30,262 nationwide 3 Series listings starting at $1,000.

ZIP:

Search BMW 3 Series Questions

BMW 3 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 4,670
#2 Robert Charlson
Robert Charlson
Reputation 1,580
#3 Michael Branan
Michael Branan
Reputation 1,210
View All

Related Models For Sale

Used BMW 5 Series
466 Great Deals out of 15,436 listings starting at $500
Used BMW M3
50 Great Deals out of 1,361 listings starting at $3,800
Used Mercedes-Benz C-Class
429 Great Deals out of 25,479 listings starting at $2,000
Used Audi A4
291 Great Deals out of 10,505 listings starting at $1,200
Used BMW 4 Series
209 Great Deals out of 7,220 listings starting at $18,900
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Honda Accord
948 Great Deals out of 77,739 listings starting at $899
Used BMW 6 Series
87 Great Deals out of 2,887 listings starting at $7,200
Used Mercedes-Benz E-Class
360 Great Deals out of 19,350 listings starting at $1,500
Used BMW X5
451 Great Deals out of 15,733 listings starting at $2,800
Used Chevrolet Camaro
244 Great Deals out of 31,194 listings starting at $369
Used BMW 7 Series
164 Great Deals out of 5,957 listings starting at $2,999
Used BMW 1 Series
27 Great Deals out of 1,015 listings starting at $6,800
Used Dodge Charger
454 Great Deals out of 29,324 listings starting at $2,300
Used BMW X3
361 Great Deals out of 12,856 listings starting at $3,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.