2003 Mercedes s55 amg. Locked doors car Alarm siren starts sometimes making eratic noises but no flashing lights. I read it might be leaking rechargable batteries in the siren itself.Any advise here

SOURCE: I have 2001 mercedes s55 amg and i can't open my

Can you open and lock your doors?
If yes, then it could be the boot catch.
Try a good mercedes scrapy for the second hand boot lock unit. Dronsfield mercedes are good, 01457871717

SOURCE: First: alarm went off on its own.(mazda 6 2003).

there is often a small back up battery in the immobiliser unit itself, if you can locate this unit and replace the battery with the ignition on / engine running, then it should not need recoding and work fine after that. The other thing that could be wrong is the key battery (if the fob has one) or the transponder chip in the key head. If the key signal is low the immobiliser lamp will light during driving, but this does not explain the alarm going off. That is more likely either a poor vehicle battery, alarm / immobiliser back up battery, or another electrical fault such as water leakage into a tail-light or even the alarm unit itself when it rains. A lot of alarms are voltage sensing and when the vehicle is parked they will alarm if the battery voltage changes for any reason, though not during driving so the battery in the immob is my first choice to look at.

SOURCE: 1988 nissan maxima factory alarm faulty

try locking and unlocking the doors with the keys that is what i did and it solved my porblem

SOURCE: MERCEDES S320 model 1999, key locked in the Trunk.

Isn't there botton somewere on the door or left lower conner of dashboard to open trank remotely?

Z71guy

• 154 Answers
• Posted on Oct 08, 2010

SOURCE: radio reading locked on 2003 monte carlo

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