If your Mercedes-Benz key fob battery died, starting your vehicle is still a snap. However, 3 times since new I've not been able to unlock the car by touch. Is the battery in the key dead, if so you can start it still if you hold the logo up to the ignition button and push as usual. I've had to get the key out of my pocket and punch the unlock button. Mercedes-Benz owners each have car keys with fobs attached that allow them the luxury of not needing to fumble for the door lock each time they want to lock or unlock doors. In this short guide, we’ll show you all the steps to take. If your car doesn’t detect the key fob, the easiest solution is to use the physical backup key instead. It's a fail safe built into those keys in case the battery in the key fab dies. The main symptoms are the key won't unlock the doors or start the car. Change the remote battery, then on the passenger side door use the key to unlock the door making sure you hold it in the unlock position until you hear all the locks unlock. Step 2 – Ignition activated but car won't start. Valet Key. I put in the key or fob (whatever it's called) sometimes it won't release the steering wheel. key fob didnt unlock doors used key in end of FOB. Mercedes-Benz GLE (W166 & C292) Forums. A dead key fob means you’re locked out of the car, which is the last thing anyone would want when in a hurry. Imagine attempting to find the door lock on your Mercedes … My windows don't even work or my seats. For more info, visit the Porsche Car Connect website. Recently, I started having trouble starting it. Rodent damage can be another reason why your Mercedes-Benz E350 won’t start. If you’ve got one of Mercedes ‘Smart’ keys then you will have to see either a Mobile Locksmith or a dealership. Some cars can use either method to unlock the doors and start the engine. ... Eis the key will lock/unlock car, will turn in ignition but will not start car. Avoid These Mistakes When Charging a Benz Battery. 2001 mercedes benz ml 320 keys - doors won't lock/unlock, batteries are good. These days, Mercedes provides you with a smart key fob to lock and unlock your car with. A smart fob can stop working for several reasons and diagnosing them is quite simple. unlock with fob and try to open the boot by pressing the finger-contact doesn't unlock the boot. The car won't start. Mercedes keys pair "for life", so once you stick a key in the ignition and it works, it's never going to work in another car. Mercedes Benz C320 2003, key don't turn in ignition, have to manually unlock car, checked fuse box while car running, switched off, the all malfunction lights went on, disconnected battery, now the key won't turn, display lights only on when you put headlights on. Also please check out the statistics and reliability analysis of Mercedes Benz C300 based on all problems reported for the C300. I had a problem with my E350 mb. Turn on ignition to position 2 with folding key within next 30 seconds. Very often this could be caused by a low battery or poor connection between the battery and starter. Mercedes-Benz cars that are fortified with automatic transmission have a gear selector shifter interlock safety feature. If above doesn't work, here's a keyless entry option on the key: (1) Press Unlock (2) Lock (3) Unlock (4) Lock (5) Lock (6) Unlock (7) Follow Procedure 1 steps above. As an integral part of the ' Mercedes me connect' program, the digital vehicle key will connect seamlessly with services that meet the demands of modern mobility and digital lifestyles. A valet key is one that it used to lock personal belongings in the glove box and trunk while your S-Class is being parked by the valet. Simply scan the QR code in the vehicle’s multimedia system, or enter your Vehicle Identification Number in the app to pair your vehicle. The 2014 Mercedes-Benz CLA250 car makes a clicking noise but won’t start: If you turn the key to the “Start” position, but the engine won’t crank; all you hear is a single click or repeated clicking coming from the engine compartment. How to Start a Mercedes-Benz with a Metal Key. Subaru owners with a malfunctioning key fob may be able to unlock the car remotely if they’ve subscribed to StarLink. To unlock the door, remove the metal blade key from your Mercedes-Benz key fob. after about - Answered by a verified Mercedes Mechanic We use cookies to give you the best possible experience on our website. Only the older ‘Flip’ Mercedes keys can be self programmed. With the introduction of the mbrace app, Mercedes Benz owners can unlock their cars remotely. 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