Please Need help..

BlackBear

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Feb 22, 2009
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Hello Gents
I need your help on a C-Class W202 three button Key fob; the red light flashers as normal but it will not lock doors or start ignition. It’s initially unlocked the doors but refused to start ignition. I then tried to lock the doors using the key fob, although the red light flashers but it didn’t lock the doors any long. I can’t at this stage conclude if new batteries are required because the light flashes as usual but nothing happens. I need help please, many thanks.
 

jberks

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Jaguar XF 3.0 S, LR Freelander 2, Fiat 500 & Fiat Panda
Initially get a new battery. That may sort the door bit.
There are 2 sides to the key. The remote which is powered by the battery and the ignition bit which has its own battery and is charged by the car when plugged in - so, if not used for a while, it can stop working altogether.
People have revived them by plugging them into the ignition and leaving them for a few hours to recharge. Requires secure parking obviously. May be worth a go.
 
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