2003 BMW M3
Key Replacement - Save vs Dealer in San Diego
Emergency? | On Our Way

Whether you lost your only key, it was stolen, or it just stopped working, we handle it. No existing key needed. Our technicians program new keys directly to your vehicle's computer.

From zero keys to savings
2003 BMW M3
Key Options
Dealer-grade key for a fair, honest price
BMW M3 Emergency Response vs Dealer
No spare key? See your best path forward
2003 BMW M3 Remote Head Key Replacement - Fast, Affordable & Professional
Out near the Live Oak Park Area, a guy called me from the shoulder of a road with half a key in his hand and half stuck in the ignition of his 2003 BMW M3.
The blade had snapped clean at the bow, right where the metal thins out near the cylinder face. He'd already called another locksmith who told him the cylinder would need to be drilled out and replaced. On a BMW, that conversation gets expensive before it even gets started.
He wanted a second opinion, so he called me.
I got there and took a look before touching anything. The fragment was seated but not jammed deep. I used a proper extraction tool and worked the broken piece out without touching the wafer surfaces inside the cylinder. No scratching, no damage, nothing that would affect how the lock reads a key afterward.
Once the fragment was out, I decoded the lock directly from the cylinder. Cut a fresh blade to match. Then programmed the transponder chip in the new remote head key using the OBD port, enrolled it to the immobilizer, and tested the remote functions against the car.
The new blade turned on the first try. The fob locked and unlocked without issue.
He didn't need a new ignition cylinder. He didn't need a tow to the dealer. The whole thing was handled on the shoulder, and he drove away in his car. The other locksmith's plan would have cost a lot more and left him with a replaced cylinder on an M3 that didn't need one.
Save vs the Dealer on Your BMW M3 Key
Get your key for hundreds less than the dealer. Same quality, same result, better price.
BMW M3 Rapid Response, Done Right
Rapid response in the field
Stranded to Grateful
From no keys to no worries
“Marco helped me with bmw 3 series fem job he was fast and knew exactly what to do to make the key and fast. Thanks for the good service”
“I called Marco with Ez Car Keyz San Diego for a BMW smart key for replacement, he offered me a great deal showed up on time and charged the same price he quoted. Very friendly and professional service. Highly recommended.”
“Called him and sent an appointment for the following day. Gave me a fair price and got it done. Gave me a deal on a second key .”
BMW M3 Key Service Areas
No key, any city, no problem

Lost your keys? We’ll come to wherever the car is






