Mercedes-Benz car keys in Diamond Bar · 24/7 mobile
Mercedes-Benz Car Key Replacement in Diamond Bar
Need Mercedes-Benz car keys in Diamond Bar? Crenshaw Lock Company is fully mobile and available 24/7. We come to your C-Class or E-Class wherever it sits and replace lost, damaged or spare keys on location. Call (323) 997-8867 and have your VIN ready.
- Mobile to your Diamond Bar location
- Keys & fobs programmed on site
- Available 24/7

Mercedes-Benz keys are high-security and tied to the car's electronics, so a hardware-store copy will not work. Whether you drive a C-Class or an E-Class, a replacement has to be matched to your specific vehicle and programmed so the car recognizes it. That is why we work from the VIN rather than guessing at the key type.
Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and we are fully mobile. There is no shop to tow your Mercedes to. Whether you are in a driveway in Pathfinder, a parking lot near Diamond Hills Plaza or the roadside, our technician brings the equipment to you and does the work on site.
How it works in Diamond Bar
- 1
Call and share your VIN
Call (323) 997-8867 and tell us the make, model, year and your VIN. The VIN lets us confirm the correct key for your Mercedes-Benz before we head out.
- 2
We come to your vehicle
Our mobile technician travels to your car in Diamond Bar, at home, work or the roadside. We verify you are the owner and check the vehicle first.
- 3
Key cut and programmed on location
We prepare the replacement key and program it to your car on site. This covers lost keys, adding a spare, and all-keys-lost situations where no working key remains.
- 4
Test everything before we leave
We test the new key for starting, locking and unlocking, and confirm any remaining keys still work as expected, so you leave with a key you can trust.
What affects the price
- Model and year of your C-Class or E-Class, since key types vary by vehicle
- Whether you have a working key to copy or are in an all-keys-lost situation
- Key style, such as a push-button smart key versus a bladed key
- Number of keys needed, including adding a spare
- Time of day and your location within the service area
Mercedes-Benz keys across Diamond Bar
Diamond Bar drivers rely on their cars for commutes along the SR-57/SR-60 interchange at Grand Avenue, and a lost Mercedes key can strand you anywhere. We serve ZIP codes 91765 and 91789, including the gated Country Estates, Pathfinder, and the Sunset Crossing and Summitridge areas. If your key goes missing after a round at Diamond Bar Golf Course, we meet you at the car.
We also come to parking lots at Diamond Hills Plaza, Diamond Bar Center and Sycamore Canyon Park. Because we are fully mobile, you never need to move a car that will not start. Call (323) 997-8867 any hour and we will head to your Mercedes-Benz.
See our Mercedes-Benz key guides by model and year, or all Diamond Bar services.
Need a Mercedes-Benz key in Diamond Bar?
Call (323) 997-8867 — we come to your vehicle 24/7.
Mercedes-Benz keys in Diamond Bar — FAQs
What if I lost all my Mercedes-Benz keys in Diamond Bar?
Can you make a spare Mercedes key?
What if I have no original key?
Is a push-button key different from a bladed key?
How do you confirm the right key for my car?
Do I have to bring my car to a shop?
Reviewed by David Shar — Owner & Lead Technician
Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.
Last updated 2026-10-12.