Mercedes-Benz Key Service — What You Need to Know
Mercedes-Benz vehicles have unique security requirements that affect key replacement options and pricing.
Why Mercedes Is Different
Mercedes-Benz transitioned from the FBS3 to FBS4 security system in 2014. This change fundamentally altered what's possible for key replacement outside of a dealer environment.
Full Service Available
We can provide complete key replacement — cutting, programming, and EIS alignment — at 40–60% below dealer pricing.
- Spare key programming
- All keys lost service
- EIS repair / replacement
- On-site mobile service
Limited Service
FBS4 encryption requires dealer-level infrastructure. We provide diagnostics, guidance, and partial services.
- Lockout service
- Diagnostics & assessment
- Dealer referral assistance
- Full AKL (some models)
What We Can Do for Your Mercedes
Emergency Lockout
Locked out of your Mercedes? We provide non-destructive entry for all models, all years.
Key Diagnostics
We can diagnose why your Mercedes key isn't working — EIS issues, key battery, antenna problems, or programming failures.
Pre-2014 Full Service
For FBS3 vehicles, we offer complete key cutting, programming, and EIS service at a fraction of dealer cost.
Dealer Navigation
For FBS4 vehicles, we help you understand your options, verify dealer quotes, and avoid overpaying.
Let's Discuss Your Mercedes
Every situation is different. Call us to discuss your specific model and what we can do.