Why will my keyless entry, sunroof, and radio not work?


Asked by Jan 31, 2014 at 01:25 PM about the 2006 BMW 3 Series 330i

Question type: Maintenance & Repair

I bought the car with a damaged title. Everything runs great. The only things that do not
function are the keyless entry, sunroof, radio, and horn.

6 Answers


Pull off your fuse box cover. There should be a diagram of all fuses and what they do. I would start checking he fuses for radio, horn, and sun roof. If your keyless entry is not working, I would change out the battery in your key fob.


I have checked all fuses and none seem to be bad. Should I change them anyway?


Also, the radio comes on, but there is no sound. You can load a disc or change the station, but there is still no sound. All of the speakers work properly, as I have tested them.

1 out of 1 people think this is helpful.

If your fuses are good then there's no sense in changing them out. I tried to google sun roof relay but I didn't find one. I read a post that said hold down the sunroof button for 30 seconds and it will reset the system. If that doesn't work, the other problem people were having was the sun roof motor was bad. They are $450-$500 on Ebay. As far as the radio goes, if you switch it from CD to radio the radio should play. If not, the internal amp may have quit. If your system has an external amp, check to see if it has a fuse.

Best Answer

Thanks a lot. I'll try all of that


I was just reading today that the key fob controls a lot of that stuff, and may need reprogramming. (I was looking because I, very smartly, laundered my key fob). Also, on my prior car, the radio went silent as a security measure; there is no use stealing it if it doesn't play. This may require contacting a dealer, or you might find posts on the web about how to program the fob. I would do that before buying a sunroof motor or am $800- $1200 amp.

Your Answer

Add photo

Related Questions

3 Series

Looking for a Used 3 Series in your area?

CarGurus has 39,942 nationwide 3 Series listings starting at $888.


Search BMW 3 Series Questions

BMW 3 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 3,900
#2 Robert Charlson
Robert Charlson
Reputation 1,380
#3 Michael Branan
Michael Branan
Reputation 1,110
View All

Related Models For Sale

Used BMW 5 Series"
707 Great Deals out of 19,067 listings starting at $1,500
Used BMW M3"
86 Great Deals out of 1,890 listings starting at $5,495
Used Mercedes-Benz C-Class"
897 Great Deals out of 32,259 listings starting at $1,900
Used Audi A4"
347 Great Deals out of 13,038 listings starting at $1,500
Used Ford Mustang"
752 Great Deals out of 41,500 listings starting at $900
Used Mercedes-Benz E-Class"
789 Great Deals out of 22,934 listings starting at $1,850
Used BMW X5"
567 Great Deals out of 15,612 listings starting at $1,995
Used BMW 6 Series"
119 Great Deals out of 3,038 listings starting at $5,995
Used BMW 7 Series"
211 Great Deals out of 5,892 listings starting at $2,995
Used Honda Accord"
1,383 Great Deals out of 78,758 listings starting at $1,395
Used Lexus IS 250"
387 Great Deals out of 6,129 listings starting at $4,494
Used BMW 1 Series"
114 Great Deals out of 1,776 listings starting at $3,750
Used BMW X3"
287 Great Deals out of 12,145 listings starting at $3,500

Used Cars For Sale

2017 BMW 3 Series 330i For Sale
868 listings starting at $37,741