The 2017–2026 E-Class uses the same key setup, so everything on this page applies to those years too. The full picture is on the Mercedes-Benz E-Class key guide.

2025 Mercedes-Benz E-Class: key facts

Key type: Smart / proximity key
Push-to-start: Yes
Transponder chip: Varies by trim — we confirm by VIN
Programming: Dealer-only (we'll tell you before you spend anything)
All keys lost: We can originate new keys on site

Current W214 generation — FBS4 era by platform, but we did not verify model-specific key documentation this session. Added/replacement keys are assumed dealer-only; we confirm the current procedure per job.

Same key system as the 2017–2026 E-Class

Mercedes-Benz kept the E-Class's key system unchanged across 2017–2026, so everything about replacing a 2025 key — blanks, programming, and what happens if every key is lost — matches the rest of that run. The full year-by-year breakdown lives in our Mercedes-Benz E-Class key guide.

For this generation, added or replacement keys go through the dealer — we say that up front rather than charge you to find out. Call (213) 577-1366 and we'll tell you honestly whether a mobile locksmith or the dealer is the right move for your situation.

We cover all these cities

Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.

Last updated 2026-10-11.

2025 Mercedes-Benz E-Class key replacement

2025 Mercedes-Benz E-Class: key facts

Same key system as the 2017–2026 E-Class

We cover all these cities