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Light with "B" always on


ATLBMW

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On the instrument cluster, the light on the bottom left that has a "B" on it is always on when the car is running - is that normal?

It flashes when I turn on a turn signal, and then goes back to solid light on after I cut the signal off.

1976 2002

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Brand new to the car, drove it for the first time yesterday. Not sure how long it has been on. car is slow to start, but i think it is from sitting vs. the battery.

Is the light on a sign of a bad alternator?

Both battery and alternator were replaced last week...

What does B stand for, battery?

1976 2002

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Sorry about that, I wasn't thinking straight. Here's an explanation of the lights, photo cred C.D.iesel.

021968GAUGEandTAILITES.jpg

It sounds like you have either a bad hazard switch, a bad ground somewhere, or a bad relay. The turn signal system is a common fail point on 2002s, there's plenty of write ups on troubleshooting and repair. I've never heard of the light staying on and then blinking when you use it; have you verified the turn signals work outside the car? what happens when you push the hazard button?

A bad hazard switch can drain the battery, FYI.

let me be the first to say welcome to the 2002! It's a great little car!

1974 Malaga 2002 4282899 "Little Red"

1976 Polaris 2002 2374061 "Rusty Shackleford" 

1998 Dk. Blue Volvo S70 T5 "Carlene"- 221k Miles 

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B is the blinker. Could be a lot of things but, I've had that light stay on when the blinker relay had moisture inside. Another issue may be the ground off the turn signal stalk.

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Mine does that on the 1600. The front signals are wired incorrectly to single element bulbs (and no parking lights). You should have a dual element bulb at each front corner, properly wired.

The front lamp housings are grounded via the mounting screws. Eventually you may do well to run supplemental ground wires there.

GL,

Ray

Stop reading this! Don't you have anything better to do?? :P
Two running things. Two broken things.

 

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signal flasher box is not fully releasing (under the dash, just above the hood release handle--the smaller of the two that says "Nicht Werfen", not the one that says "Wisch-Wash-Geber").

Check the archives on how to remove the cover from the box and unstick the points so that the "B" light on the dash blinks with the exterior turn signals.

cheers

mike

'69 Nevada sunroof-Wolfgang-bought new
'73 Sahara sunroof-Ludwig-since '78
'91 Brillantrot 318is sunroof-Georg Friederich 
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Guest Anonymous

heres the oink, pulled my front turn signals today, dangling in the wind, still functioned with no screws to ground, go figure, start thinlin like a German and all this o2 stuff will make sense.....................

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I had the same problem with mine. I needed to replace the plunger switch in the Brake fluid res. The float had cracked, filled with fluid and no longer closed the connector switch. Replaced it w/ a new one and no more problems. Pull the electrical connector at the brake fluid res and see if that stops the problem. Just an FYI YMMV.

RipR2

The BMW 2002 US VIN 2591740 was manufactured on June 4th, 1973 and delivered on September 14th, 1973 to the BMW importer Hoffman Motors Corp. in New York City. The original colour was Fjord metallic, paint code 037.

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I think the thread got a bit off the correct "B" light. I think the owner is talking about the turn signal indicator not the "brake failure" light. Although, it would be a good idea to make a note of both the parking brake and brake fluid reservoir's relationship with that the "brake failure" light as that will prove valuable in the future. I still remember the first time that light came on...met with just a moment of panic before I confirmed the pedal was still firm!

2003 GMC Sierra Stuff Hauler

2000 Honda Odyssey Family Hauler

1992 Mazda Miata Wife's Grocery Getter

1988 Honda NT650 Hawk GT Dust Collector

1973 BMW 2002 Sunny Day Driver

1991 318iC Daughter's ride

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Sorry about that... wrong light. My bad.

RipR2

The BMW 2002 US VIN 2591740 was manufactured on June 4th, 1973 and delivered on September 14th, 1973 to the BMW importer Hoffman Motors Corp. in New York City. The original colour was Fjord metallic, paint code 037.

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  • 2 months later...

Okay, got it figured out today - it was the turn signal relay under the dashboard. I unplugged it, took the cover off, and tightened everything down in side by pushing them against the circuit board. Put it back together and now everything works fine.

Thanks all!

1976 2002

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