Question about Mercedes-Benz B-Class
try looking in the door and see if the bar to central door lock mechanism hasnt come off where the little plastic clip has broke that retains it
Posted on Nov 23, 2008
leave ign off with key out 3mins disconnet battery 5 mins reconnett and press lock/ unlock repeatedly until locks cycle through to re sync try this any probs come back to me
Posted on Feb 23, 2009
I'm more familiar with Range Rovers and Saab's when it comes to key fobs but if you changed the battery you have to re-program the key fob. If you do not have an owner's manual that can take you through the steps you might want to try: push and hold the lock button on the key fob, put it in the driver's side door and turn to lock. With the button still depressed turn back to open, remove the key and release the button. If this doesn't work check any and all fuses associated with your system and last but not least you could take it to a dealer. Good luck!
Posted on Aug 25, 2009
Testimonial: "thanks ill try what you've suggested"
Check the fob battery because if the battery has gone then you can't immobilise the car immobiliser which in turn doesn't let you start the engine however it cranking. open the bonnet and remove the clips of car battery for a good 15-20 minutes and put them back and check your remote key and try to start your car. If nothing happens then let your car diagnosed by a experienced mechanic who is able to read out the ecu codes.
Posted on Sep 04, 2009
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