C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

problem with alarm

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old May 9, 2013 | 10:10 PM
  #1  
germanad's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2009
Posts: 30
Likes: 0
W202
problem with alarm

I have a problem with the alarm on my w203
when I close it from the alarm of the key (closed lock) the car starts to sound and lights are activated as if he were stealing ha ha!
malfunctioning alarm. when I open it from the alarm of the key (open lock) or if I start the alarm goes off. any of you happened this problem?
Reply
Old May 10, 2013 | 11:24 AM
  #2  
germanad's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2009
Posts: 30
Likes: 0
W202
I have this problem, but also of the siren, I have also the problem of flasher lights.
http://www.benzworld.org/forums/w220...-off-when.html
http://www.benzworld.org/forums/w220...ease-help.html

watch this!
http://www.benzworld.org/forums/w220...ml#post3667044
I do not want to have that problem if I replace the siren.
Reply
Old May 10, 2013 | 06:30 PM
  #3  
germanad's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2009
Posts: 30
Likes: 0
W202
I'm going to list the faults with the car alarm has:
1: I close with the fob, when I open it with the fob position lights and the headlights are lit auxiliary only go off if I open the driver's door.
2: I am in the car, I close with the fob, I move in the car, turn on the radio and the alarm does not sound, no lights flash.
3: open the window, I close from the fob, stick my head inside, no alarm, no lights
4: I close from the fob, open the driver's door with the key of relief (metal) and alarm lights begin to flash. but no siren.
Reply
Old May 10, 2013 | 06:54 PM
  #4  
germanad's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2009
Posts: 30
Likes: 0
W202
I forgot. when I close the light is flashing red button trailer.
Reply
Old May 11, 2013 | 07:58 AM
  #5  
germanad's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2009
Posts: 30
Likes: 0
W202
fine, remove the bell, I have in my hand.
even without the siren, continue on and off the flashing lights. Position continue latching on the lights. did not change anything. no way to measure the siren with the multimeter?
Reply
Old May 11, 2013 | 08:38 AM
  #6  
Moviela's Avatar
MBWorld Fanatic!
20 Year Member
Photogenic
Photoriffic
 
Joined: Jan 2005
Posts: 2,848
Likes: 15
From: Orange County
2005 C Wagon (No snickering please!)
The siren is only a noise maker. Connect 12 v (mind the polarity) and it will scream or not.

The smarts for the alarm live in the front SAM. Output devices are doors locks and windows, parking lamps, fog lights, siren. Inputs are from immobilizer, tow switch, driver door Ir window. Some cars have an interior motion sensor.

The only common failure part is the siren itself. It is only the part that makes noise. Any of the other parts can contribute to unintended operation.
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 03:25 PM.

story-0
8 Oddball Mercedes Ideas That Actually Made it to Production

Slideshow: Mercedes has never been afraid to experiment, and some of its strangest ideas turned out to be surprisingly successful.

By Verdad Gallardo | 2026-06-10 17:43:40


VIEW MORE
story-1
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

Sideshow: A Middle Eastern tuner has transformed the Mercedes-AMG G 63 into an open-top special, replacing nearly every exterior panel in the process.

By Verdad Gallardo | 2026-06-10 15:29:50


VIEW MORE
story-2
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-3
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-4
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-5
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-6
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-7
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-8
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-9
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE