Alarm issues
08-04-2018, 04:57 PM
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C32 AMG
Alarm issues
My alarm doesn’t work. I can lock the doors from sitting inside and when I go to open the doors. No lights blink and no sounds are going off. Any suggestions anyone. Thx
08-20-2018, 05:10 PM
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Location: Klein Leeukoppie, Hout Bay, Cape Town
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AMG C55, BMW 330e Hybrid saloon, BMW 123d coupe
The culprit is the sealed-for-life alarm siren. It has a Lithium battery built in for back-up, and with age, this battery leaks onto the internal PCB and blows the board. The alarm siren is governed by the same Canbus that controls the alarm system, central locking, and radio reception - via the rear screen antenna. So this fault effects all!
Replace the alarm siren unit which is located under the left front wheel arch (to the rear arch). Steering can turned full lock to gain access.
You will then hear Bip-Bip when you press the remote locking. Job finished and car functions like new.
