Question about 2002 Mercedes-Benz C-Class

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Mercedes Benz 2002 C Class 180. Key fob batteries

How do you replace the batteries in the key fob of above vehicle. Further, where can I obtain such batteries?

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  • Anonymous Mar 31, 2014

    my e-class w211 boot wont open by fob or electronically , only the key works.

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You have to seperate the front of the fob casing by sliding or prising at the side this will then reveal the batteries. You can get replacement batteries from most garages or your MB dealer (who will probably fit them as well)

Posted on Feb 09, 2009

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Cannot open trunk


The right hand lower button on the key fob opens/unlocks the trunk.
Go to
www4.mercedes-benz.com/manual-cars/ba/cars/221/en/overview/oeffnen.html
There is an interactive handbook at this address. If this fails consult your dealer, the fob may be faulty. There is also an S class owners forum for more help.

Jul 21, 2014 | 2002 Mercedes-Benz S-Class

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Key fob only work sometimes


most likely just the battery in key fob. take it to oreileys and they can test to see if its the battery

Oct 27, 2013 | 2002 Mercedes-Benz C-Class

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W202 ignition key wont turn past1


  • Reset your Mercedes-Benz key by placing the key in the ignition of your vehicle while the vehicle is turned off. Do not turn on the vehicle. Press a finger on the "lock" button of your key fob while the key is in the Mercedes' ignition.

  • Pull the key out of the ignition while continuing to hold the "lock" button down. Continue to hold the "lock" button for the duration of the key resetting process

  • Use another finger to push down on the "unlock" button five consecutive times. Keep holding down the "lock" button.

  • Release the "lock" button. This is the end of the resetting process for your Mercedes-Benz. Use your key fob to ensure it is properly working



  • Read more: How to Reset a Mercedes Key ' eHow.com http://www.ehow.com/how_7492936_reset-mercedes-key.html#ixzz2DPwSK6xa


  • Read more: How to Reset a Mercedes Key ' eHow.com http://www.ehow.com/how_7492936_reset-mercedes-key.html#ixzz2DPwCappG

    Nov 23, 2012 | 2008 Mercedes-Benz Mercedes Benz C Class

    1 Answer

    1998 mercedes benz S420 trunk lock is broken battery is dead how can I charge


    open the bonnet and place a jumper cable on the starters POS. wire.
    Place the NEG. cable from the jumper on any metal structural componant on the vehicle.
    use the key fob to 'pop' the trunk.

    Nov 28, 2011 | 1998 Mercedes-Benz S-Class

    1 Answer

    Ignition locked. Key won't turn.


    Hi,
    Yes when you replaced the batteries in the FOB this will have cleared the system identification for the keys.
    So have these reset to your vehicle and then you will have no problems.

    Aug 07, 2011 | 2003 Mercedes-Benz C-Class

    1 Answer

    KEy Fob not locking/unlocking doors. Replace the battery and still nothing. The light on the key fob is not even blinking when the buttons are pushed.


    SOUNDS LIKE A BAD KEY FOB..BUT BEFORE YOU GO WASTING ALL YOUR MONEY ON ANOTHER ..TAKE THE BATTERY BACK OUT LOOK INSIDE WHERE THE BATTERY SITS AND MAKES CONTACT..ARE THE LITTLE CONTACTS TOUCHING THE BATTERY

    Dec 25, 2010 | 2005 Mercedes-Benz E-Class

    3 Answers

    Have mercedes E class key fob will not open doors,


    If key will not turn
    Car battery flat,charge or jump to activate elec ignition

    Feb 06, 2010 | 2001 Mercedes-Benz E-Class

    1 Answer

    C240 mercedes key wont turn seems locked... I went to my car used fob doors unlocked when I tried starting i inserted the key in the ignition and the fob will not turn seems locked..now all of a sudden the...


    I have a 2001 C240 with the same issue. I removed the positive battery cable from the battery and kept it off for 30 seconds then replaced it. Everything was reset and the key worked.

    Jan 12, 2010 | 2001 Mercedes-Benz C-Class

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