Rear Brake light warning goes on and off on dash

hotbimmer_e46 · 10-01-2008, 01:16 PM

Hi all,

I got a minor problem with my E46 coupe, the rear brake warning lights comes on the dash board even though its working perfectly, never had problems with the brake lights but keeps going on for a while then eventually goes off for some time.

What could the problem be?

Also I have noticed that the left tail light is brighter than the other, what could this be?

SEDUCTIV · 10-01-2008, 01:50 PM

check the bulb, it could be that the bulb is not connected properly

Sicily1918 · 10-01-2008, 01:50 PM

The bulb could be going -- I had a left tailight-out error (before the Eagle Eyes) and went to check... all the lights were on, so I removed the working bulb and cleaned it, then the warning turned off... then the bulb died two blocks later and the warning light came on again.

ssm1991 · 10-01-2008, 01:53 PM

Taillight Fix

Sicily1918 · 10-01-2008, 03:50 PM

Quote:

Originally Posted by ssm1991

Taillight Fix

Don't think that applies to coupes...

DesertMotorWorks · 10-01-2008, 04:12 PM

There's an SIB for this issue, but the SIB is for sedans. I'll see what I can dig up about couples.

hotbimmer_e46 · 10-06-2008, 12:56 PM

Thanks for the replies, one other thing i have just noticed - one of the rear fog lights have fused, do you think it could be this that causing the light to come on the dash computer?

tbehling · 03-05-2009, 02:28 PM

Quote:

Originally Posted by Sicily1918

Don't think that applies to coupes...

i dont think so either, i dont have the tab to ground out the brown wire. where else can it be connected to?

//TRD power · 09-24-2009, 12:07 AM

First, replace the bulb. That is the most economical option. If that hasn't fixed it, then it'd the holder. That's it. Most likely the bulb though.

neil1138 · 09-24-2009, 12:22 AM

Sometimes bulbs can "go bad" without actually going bad, if you feel me

bzishka · 07-31-2011, 06:24 AM

i have the same problem with my 323i sedan, how do i fix it

10-01-2008, 01:16 PM	#1
hotbimmer_e46 Registered User Join Date: Sep 2008 Location: Scotland Posts: 44 My Ride: Bmw 320 m sport vert View My Garage	Rear Brake light warning goes on and off on dash Hi all, I got a minor problem with my E46 coupe, the rear brake warning lights comes on the dash board even though its working perfectly, never had problems with the brake lights but keeps going on for a while then eventually goes off for some time. What could the problem be? Also I have noticed that the left tail light is brighter than the other, what could this be?

10-01-2008, 01:50 PM	#3
Sicily1918 There I was, Sicily, 1918.. Join Date: Sep 2003 Location: Los Angeles Posts: 1,628 My Ride: 1995 E36/2003 E46 View My Garage	The bulb could be going -- I had a left tailight-out error (before the Eagle Eyes) and went to check... all the lights were on, so I removed the working bulb and cleaned it, then the warning turned off... then the bulb died two blocks later and the warning light came on again. __________________ My Step transmission fluid change thread. Ti330Ci's awesome Step fluid thread.

09-24-2009, 12:07 AM	#9
//TRD power Registered User Join Date: Jun 2008 Location: Zero Maintenanceville Posts: 2,463 My Ride: 3.0 \| 200hp \| 214trq View My Garage	First, replace the bulb. That is the most economical option. If that hasn't fixed it, then it'd the holder. That's it. Most likely the bulb though. __________________

09-24-2009, 12:22 AM	#10
neil1138 Registered User Join Date: Jan 2008 Posts: 4,230 View My Garage	Sometimes bulbs can "go bad" without actually going bad, if you feel me __________________ flickr \| DIY: Auto ---> 5 speed swap \| No-Reverse Solution \| The Chalkboard E30 \| Cinnamonomnomnom

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

10-01-2008, 01:50 PM	#2
SEDUCTIV Registered User Join Date: Sep 2005 Location: New York City Posts: 89 My Ride: is Better Than Yours View My Garage	check the bulb, it could be that the bulb is not connected properly

10-01-2008, 01:53 PM	#4
ssm1991 Registered User Join Date: Jan 2007 Location: Philippines Posts: 867 My Ride: 2004 325i View My Garage	Taillight Fix

10-01-2008, 04:12 PM	#6
DesertMotorWorks Past Site Sponsor Join Date: Aug 2007 Location: Arizona Posts: 1,169 My Ride: 2004 330CI View My Garage	There's an SIB for this issue, but the SIB is for sedans. I'll see what I can dig up about couples.

10-06-2008, 12:56 PM	#7
hotbimmer_e46 Registered User Join Date: Sep 2008 Location: Scotland Posts: 44 My Ride: Bmw 320 m sport vert View My Garage	Thanks for the replies, one other thing i have just noticed - one of the rear fog lights have fused, do you think it could be this that causing the light to come on the dash computer?

07-31-2011, 06:24 AM	#11
bzishka Registered User Join Date: May 2011 Location: minnesota Posts: 5 My Ride: Bmw 323i View My Garage	i have the same problem with my 323i sedan, how do i fix it