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I changed the battery in my key fob on Thursday. since then
i changed the battery in my key fob on Thursday. since then very randomly the alarm goes off. … read more
ShawnS1113
ShawnS1113
Management and Engineering for Manufacturing
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My alarm kept going off at random on my Mercedes 2001 clk
My alarm kept going off at random on my Mercedes 2001 clk 430 and ran my battery dead- I left it on a dead battery for 3 days and placed new batteeey in it and now it will not crank up nor do I hear t… read more
Chad Farhat
Chad Farhat
Owner
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My mercedes alarm went off several times, my fault, but now
My mercedes alarm went off several times, my fault, but now will not start , and I have a full display of all sorts of issues … read more
Jake
Jake
6,098 satisfied customers
Mercedes E350 2009. Today I took my car to get the tires
Mercedes E350 2009.Today I took my car to get the tires changed. I took out the key from the fall and give the form to the mechanic. Then I took the key to get something out from the car and I open th… read more
Lou Palomino
Lou Palomino
associates in automotive technology
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I am out of town and it's Sunday, I think my FOB armed my
I am out of town and it's Sunday, I think my FOB armed my 2002 s500, now my locks don't work, the lock and unlock function inside the car doesn't work either, how can I disarm the alarm so my car will… read more
Lou Palomino
Lou Palomino
associates in automotive technology
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I have a 2013 mercedes sl550. I used the ket in the fob to
I have a 2013 mercedes sl550. I used the ket in the fob to open the door and the car alarm went off an I am now locked out of my car and do not know how to get into it. Just bought car and unfamiliar … read more
Pete
Pete
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General auto certifications
36,058 satisfied customers
1993 300E... my son is out with it. The alarm went off for
1993 300E... my son is out with it. The alarm went off for no reason, and he can't disable it. While it was going off he couldn't start it, now it has drained the battery. If I can locate the fuse tha… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
9,757 satisfied customers
I had activated the alarm on my L 500 not knowing that by
I had activated the alarm on my L 500 not knowing that by opening it the mechanical or locking withis key would activate the alarm. I went through a couple of procedures to reset, but how do I iknow t… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
I have a 2010 S550 My key recently went dead or something I
I have a 2010 S550 My key recently went dead or something I changed the batteries it still wouldn't work. Used mechanical key to enter car once I did the alarm went off and the car won't start. I thin… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
06 ML 500 battery died, when attempting to jump start it,
06 ML 500 battery died, when attempting to jump start it, the alarm went off and now key wont turn, steering lock, etc...How can I jump start it … read more
BOBBYSS
BOBBYSS
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Associate Degree
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I have a 2007 Mercedes c230 and 1 day my alarm went off
Hello I have a 2007 Mercedes c230 and 1 day my alarm went off for no reason and would only go off once I put the key in the ignition. An hour later, the alarm kept going off, I disconnected the batter… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Mercedes-Benz SLK230: hi my key fob stopped working so I changed
hi my key fob stopped working so I changed batteries in fob.. no change. main battery shows 12.3 volts start error when using key on position 3. tried different ways to re synch. no change. any sugges… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Mercedes Benz E230: 1996 Mercedes E230 . Key fob has been working
1996 Mercedes E230 . Key fob has been working normally, however now the car does start and run, but red and green lights on mirror do not work and central locking does not work. Dash switch for centra… read more
Stan
Stan
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Bachelor's Degree
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A new batterie to my key fob its working ok but I..doors..car battery
I have just installed a new batterie to my key fob its working ok but I can not open the car doors using the fob. I have two key fobs both working ok and both with new batteries but I still can not op… read more
MB Paul
MB Paul
Mercedes Technician
Vocational, Technical or Trade Scho
3,567 satisfied customers
2008 mercedes: key fob didnt unlock doors used..wouldnt start
2008 mercedes c300. key fob didnt unlock doors used key in end of FOB. alarm went off car wouldnt start . after about 30 minutes the car reset itself and off I went? is this normal?… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
36,058 satisfied customers
Today my car would not open using the remote key fob.
Hello. I wonder if anyone can help. Today my car would not open using the remote key fob. I opened the door manually and the alarm went off. As I could not stop the alarm I put the key in the ignition… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Mercedes-Benz SLK320 MY SLK 320 LOCKED ME OUT. THE FOB WOULD
MY SLK 320 LOCKED ME OUT. THE FOB WOULD NOT OPEN THE DOOR, SO I USED THE KEY THE ALARM WENT OFF. I TRIED TO START IT NOW THE WHOLE CAR IS IN LOCK DOWN. WHAT DO I DO?… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
1991 300se: in a pals garage..he used cables..alarm went..even turn
I left my 1991 300se in a pals garage, he needed to move it but the battery was dead so he used cables. The alarm went off and as he did not know how to stop it he unplugged the rear of the alarm. Now… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
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Meet the Experts:

MB Paul

MB Paul

Mercedes Technician

3,567 satisfied customers

Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes

Marty

Marty

Mercedes Technician

57,141 satisfied customers

Bosch Certified Master Tech. Over 35 years experience.

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

3,132 satisfied customers

Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

771 satisfied customers

Mechanical Engineer with 23 years experience in the auto industry, 8 yrs in formula 1 engine testing

promerc

promerc

mercedes diagnostic technician

553 satisfied customers

Qualified mercedes diagnostic technician & service team manager , ATA registered Master tech

Hipo64

Hipo64

Mercedes Technician

444 satisfied customers

Work and diagnose electronics on daily basis.

Tim Mohr

Tim Mohr

ASE MASTER TECH

283 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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