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Audi A4

Why would the brake lights be on while driving a 1999 Audi A4?


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2007-05-08 06:14:39
2007-05-08 06:14:39

brake switch is bad or maybe the plastic grommet in which the switch is mounted is worn (if this is anything like my 1990 Audi V8). The plastic grommet is a loose fit and allows the switch to self adjust. If it's too worn the switch slides too far forward. First try removing the switch from the grommet(sp?); then remove the grommet. Now you can test the switch and determine whether or not it is the problem. If not, pinch the grommet so the hole tightens then reinstall and reinstall the switch. Now try the pedal. If this doesn't work, replace the grommet with a new one from the dealer.

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The brake light switch is under the dashboard, attached to the brake pedal. Try the break pedal, up underneath the dash. This is usually a switch which will open with the lightest pressure on the pedal, which is why some people's brakelights are on all the time. Driving with one foot on the brake pedal means driving with your brake lights on. Which increases the reation time of the the following driver. (End of Sermon.)

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On a 1994 Buick LaSabre why does the engine continue to rev up while driving even when the brake is applied ? or when driving why doesn't the engine return to idle when the brake is applied? I would check for a vacuum leak

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I am having the same trouble. My brake lights work with the light switch for nighttime driving, but only far right brake light works when i pres brake pedal. Reverse lights dont work at all. Turn signals and hazard light work.

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Most likely no brake lights would be due to a faulty switch on the brake pedal or a bad fuse.


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