The 2011–2017 X3 uses the same key setup, so everything on this page applies to those years too. The full picture is on the BMW X3 key guide.

2016 BMW X3: key facts

Key type: Smart / proximity key
Push-to-start: Yes
Transponder chip: ID49 (PCF7953P, Hitag Pro)
Programming: OBD
All keys lost: We can originate new keys on site

CAS4/CAS4+ car: specialist territory. Add-a-key is possible via OBD with pro tools (VVDI2/Autel/CGDI per tool documentation); all-keys-lost usually means bench-reading the CAS4 module. Not dealer-only, but not a general-purpose-tool job either.

Same key system as the 2011–2017 X3

BMW kept the X3's key system unchanged across 2011–2017, so everything about replacing a 2016 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 BMW X3 key guide.

What drives the price is the key type, whether you still have a working key, and where the car is parked. There's more on BMW programming in general on our BMW key page.

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

Last updated 2026-10-11.

2016 BMW X3 key replacement

2016 BMW X3: key facts

Same key system as the 2011–2017 X3

We cover all these cities