Question about 2005 Mercedes-Benz Mercedes Benz E320 Cdi

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Cannot unlock doors and reset alarm

All of a sudden my keyless entry key won't open any doors/trunk. I had to open the car with the mechanical key attached on the side. Alarm came on and my keyless entry key won't reset the alarm even if i insert the key to the ignition. Now the alrm is still activated. Installed new battery on the key. Car battery is also ok. Can't turn the ignition either plus the alarm is still activated. Unfortunately i only have 1 key

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  • Expert
  • 166 Answers

Go on youtube and put in how to reset your car key after renewing key fob battery good luck colin

Posted on Jun 30, 2017

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Posted on Jan 02, 2017

pippall
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SOURCE: reset alarm on 2000 Mercedes C230

Disconnect the battery lead at the starter motor.Leave off for a few hours then reconnect it.It should reset it for you.

Posted on May 18, 2009

mcgyver468
  • 710 Answers

SOURCE: Does any body know how to reset the ML350 alarm??....The remote control doesn't work after i replaced a new battery to the remote control. I couldn't even use the remote to lock/unlock the car. I was

SOME OF THE REMOTES REQUIRE THAT THE KEY BE IN THE IGNITION, IN THE ON POSITION. TAKE THE BATTERY OUT AND WAIT 10 MINUTES. THEN PUT THE KEY IN THE IGNITION AND INSTALL THE BATTERY WHILE THE KEY IS TURNED TO THE ON POSITION. HOPE THIS HELPS YOU. PLEASE KEEP ME POSTED. THANKS FOR AN HONEST RATING AND FOR USING FIX-YA. GOOD LUCK

Posted on May 18, 2009

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SOURCE: trunk release for 2000 mercedes s 430 not working properly

Trunk can be lock separate from the doors valet try unlocking the trunk with the key lock it with the door.Read the owner manual it will tell you about valet parking.

Posted on May 20, 2009

  • 64 Answers

SOURCE: mercedes c200 sport ignition key will not turn in

The EIS (Electronic Ignition Switch) is malfunctioning. You will have to replace the EIS and take the car to a dealer to reprogram the keys.

Posted on Sep 12, 2009

  • 462 Answers

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?

Posted on Jul 16, 2010

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How do you turn off an alarm for a 2005 Saturn Ion


Disarming an Armed System/Silencing an Alarm
If system arming has been requested by the keyless entry transmitter, it must be disarmed.
Important: Using the power door unlock switch or manually unlocking the doors does not disable the CTD armed mode. Also, disconnecting the battery or pulling fuses does not disable the armed mode, since the BCM stores the CTD mode status in memory.
?€¢
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Sounds like the key code is switched off because you replaced the key fob battery. Try unlocking the car manual with the key in the door lock. Then switch the ignition on to reactive the keyless entry. If this does not work, you might also try pressing the fob unlock button with the key in the door lock until the dash led flashes.

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