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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Help! Fuse for to unlock doors keeps blowing!!



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      10-04-2011, 10:27 PM   #1
KyLu II
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Help! Fuse for to unlock doors keeps blowing!!

Its happening more and
Ore often now, I'm on #4 now, first time it went was early this year, and in the last week it went out 3x now! I'm using a 20amp.
Anyone having similar problems???
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      10-06-2011, 08:22 AM   #2
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Bump!
Really need help with this! It keeps blowing every single day!!
Haalp!!
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      10-06-2011, 09:15 AM   #3
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Basically means one of the door actuators is shorting or drawing out too much current. Had this issue before. If you have warranty, take it in to BMW. If not, what they did was take an ohm meter and measure resistance on each door lock, trunk lock AND the fuel cap. 1 will be higher. Replace that and problem is solved. A real pain to deal with.
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      10-06-2011, 09:15 AM   #4
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what number fuse is it on the panel?
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      10-06-2011, 10:47 AM   #5
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Quote:
Originally Posted by badass335 View Post
Basically means one of the door actuators is shorting or drawing out too much current. Had this issue before. If you have warranty, take it in to BMW. If not, what they did was take an ohm meter and measure resistance on each door lock, trunk lock AND the fuel cap. 1 will be higher. Replace that and problem is solved. A real pain to deal with.
No warranty, I had one of the actuators go bad and replaced underwarranty. Ugh, I was afraid one of them were bad. Thanks for the reply.
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Originally Posted by import36 View Post
what number fuse is it on the panel?
It's 57 I think, is the second one on the bottom left corner... There's little manual u can consult is located behind the door that covers the fuse box in the glove box.
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      10-06-2011, 10:57 AM   #6
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Btw badass, where Can I hook up the ohm reader??
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      10-10-2011, 01:18 PM   #7
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have the same problem, but just replaced mine from 15a to 20 and then 25amp which solved the door actuator problems. 27 months still problem free.

Try different amp until it work without burning it. I think you can go upto 30amp in the standard size fuse.
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      10-10-2011, 02:03 PM   #8
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Thanks! I'm gonna do that and see if it keeps burning it..
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      10-10-2011, 02:56 PM   #9
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I just noticed my rear pass door won't unlock/lock with the fob, but unlocks manually.. Probably a bad actuator...
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      11-03-2011, 01:47 PM   #10
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correctamundo

Quote:
Originally Posted by wins76 View Post
have the same problem, but just replaced mine from 15a to 20 and then 25amp which solved the door actuator problems. 27 months still problem free.

Try different amp until it work without burning it. I think you can go upto 30amp in the standard size fuse.
Correct! There was a TSB about this and doing what is above..
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      11-04-2011, 12:07 AM   #11
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I had the same issue with my car when I bought it 2 months ago I had to replace I think 2 or 3 fuses that all belong to the door lock the numbers were 50 something's I think. Haven't had an issue since.
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