Question 1

My key broke in the ignition. Can you get it out?

Accepted Answer

Yes. Broken key extraction is a standard job for a mobile automotive locksmith. We use specialized tools to remove the broken piece without damaging your Mercedes's ignition cylinder. Mercedes chrome key shells and flip-key housings are known to crack, especially on older models. One ML430 owner reported the flip hinge casting breaking and the blade falling between the seat and tunnel. Once the broken piece is out, we can cut a new key and program it on the spot, or transplant your electronics into a new shell if the chip and board are still good.

Question 2

What is a Remote Head Key?

Accepted Answer

A Remote Head Key is the type of key your 2014 Mercedes-Benz Ml-Class uses. It combines an emergency key blade with an electronic module containing an encrypted chip and 4 buttons for remote and keyless go functions. The chip communicates with your Mercedes's EIS/EZS module to authorize the engine to start. If the blade breaks but the electronics are intact, we can often move the PCB and NEC chip into a new shell without reprogramming. If both are damaged, we cut and program a completely new key on site.

Question 3

My Mercedes-Benz says key not detected. What do I do?

Accepted Answer

Start with the basics. Replace the fob battery, since a dead battery is the most common cause of "key not detected" on Mercedes vehicles. If your car still opens but will not start, try removing the keyless go button cover and inserting the emergency blade directly into the ignition slot. If you have a push-to-start model, hold the fob directly against the start button while pressing the brake. If none of that works, the issue may be the fob, the EIS/EZS module, or the steering lock ESL. Mercedes owners report that "bad key or EIS" are the two most common causes, and that is when you call us for a diagnosis.

Question 4

What is the FCC ID for the 2014 Mercedes-Benz Ml-Class key?

Accepted Answer

The FCC ID is IYZ-3312. This identifier on the back of your fob tells us exactly which replacement key your vehicle needs. If your key is broken or damaged and you can still read the FCC ID on the old fob, give it to us when you call. It speeds up the process and guarantees we bring the exact right key to your location. If the fob is too damaged to read, we can identify it from your vehicle's year, make, model, and platform code.

Question 5

Is all-keys-lost more expensive than a regular replacement?

Accepted Answer

Yes, significantly on a Mercedes. When you still have one working key, adding a spare is a straightforward job where we program to an open EIS slot. When all keys are lost, the EIS/EZS module must be read, the security password calculated, and new keys written from scratch. Mercedes dealers charge $200 to $300 per hour for programming labor on top of the key itself, and AKL invoices regularly hit $1,000 to $2,000. With us the gap is smaller, but AKL still costs more because of the extra work involved. That is why we always tell customers: get a spare made while you still have a working key.

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