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Mercedes a class alarm problem

I have a problem with my a class,the internal light does not go off when the doors are closed,i always have to put it off by balancint the on off switch right in the middle so it stays in between on and off,but still then i cannot lock the car because the alarm goes off,i have no idea why,it has happaned before and it then was ok without me doing anything,now it has started and sometimes when the light slips then i have to jumstart in the morning,also i am leaving the car unlocked throughout,please help. its a 1998 a class,1600 manual,petrol

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Posted on Jan 02, 2017

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SOURCE: Brake lights stay on

Your brake light switch is stuck on, this is also why the cruise is in-op, the cruise is turned off anytime you touch the brake pedal otherwise the car would try to accelerate when you tried braking. The brake light switch is located above the brake pedal, look up the arm the pedal is attached to and you will see it, the switch is not real expensive, and it is easy to install with simple hand tools. As far as the door lock issue fix the brake light switch and try it, not sure it is related unless it all started at the time the brake lights started staying on. Post back after you replace the switch if door problem remains. Thanks

Posted on Aug 06, 2008

  • 1486 Answers

SOURCE: reset alarm on 2000 Mercedes C230

Disconnect the battery lead at the starter motor.Leave off for a few hours then reconnect it.It should reset it for you.

Posted on May 18, 2009

  • 203 Answers

SOURCE: how do i disable alarm system????

under the rf floor board in the front you will see a false panel after removing carpet. remove false panel by loosening 10 mm plastic nuts your alarm module is 1 of the 2 modules on that false floor-it should have a 820 number in the part number-if it is not obvious call parts dept. and cross reference numbers-unplug module and you won't have worry about that annoying alarm anymore-hopefully i have been helpful

Posted on Jun 05, 2009

  • 21 Answers

SOURCE: I have a mercedes A class and the alarm keeps

Most A class have this problem with the alarm, mine does it too only fix is new alarm or see Mercedes

Posted on Jul 10, 2009

  • 21 Answers

SOURCE: I have a 1995 Mercedes Benz s320 and my doors wont lock

There is a central door locking pump under the back seat, the motor has gone in it, cheap way to repair is to strip it down and put a motor in it from a tyre compreser from argos for under £10 very easy to fit just two wires

Posted on Aug 05, 2009

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