ml430 alarm sounding intermittently for no obvious reason

Asked by May 11, 2017 at 08:17 AM about the 2000 Mercedes-Benz M-Class ML 430

Question type: Maintenance & Repair

Have a 2000 reg ML430.  Experiencing issues with the alarm. Goes off intermittently for no obvious reason - seems to happen every few hours - even does it when driving.  Been having some issues with central locking but they have been fixed by a replacement switch being installed BUT this alarm problem has been going on for a while.  In the past we had found that the alarm would not sound if we locked the car using the central locking rather than the key fob, but this now seems to make no difference (since we had the central locking fixed that is). Lights dont flash when alarm sounds.  We are probably going to have to take back to the garage BUT wondered if there could be any obvious (and well known) causes -for example, does the battery need replacing on the alarm system? Is it a door sensor perhaps? Any suggestions would be helpful so either we can fix it OR we can at least point the garage in the right direction (and so save potentially on a lot of labour costs)

1 Answer

5,025

On most MB's after 1995 there is a code for the alarm system that needs to be reset (usually by a licensed MB shop, or the dealer). This will eliminate the issue and they can also recode the fob so that it works the way its supposed to. Best of luck!

1 of 1 people found this helpful.

Your Answer

Mercedes-Benz M-Class Experts

  • #1
    jihadghazali
    Reputation
    1,200
  • #2
    wellness
    Reputation
    940
  • #3
    snowseal19
    Reputation
    630
View All

Related Models For Sale

Used BMW X5
36 Great Deals out of 709 listings starting at $4,000
Used Mercedes-Benz E-Class
48 Great Deals out of 505 listings starting at $3,900
Used Mercedes-Benz C-Class
121 Great Deals out of 1,478 listings starting at $3,500
Used Mercedes-Benz S-Class
8 Great Deals out of 125 listings starting at $5,999
Used Mercedes-Benz G-Class
26 listings starting at $38,995
Used Jeep Grand Cherokee
101 Great Deals out of 2,740 listings starting at $1,695
Used Acura MDX
31 Great Deals out of 487 listings starting at $2,999

Used Cars For Sale

2015 Mercedes-Benz M-Class For Sale
4 Great Deals out of 90 listings starting at $38,850
2014 Mercedes-Benz M-Class For Sale
110 listings starting at $35,990
2013 Mercedes-Benz M-Class For Sale
52 listings starting at $31,888
2012 Mercedes-Benz M-Class For Sale
66 listings starting at $26,500
2011 Mercedes-Benz M-Class For Sale
31 listings starting at $17,994

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.