Mercedes W204 W207 W212 W164 W166 W221 Key Replacement Guide

Last updated: August 2026 · Verified OEM part numbers

Quick answer: The Mercedes W204 W207 W212 W164 W166 W221 (1997-2015) uses the XSBZ01 Changeable Frequency 3+Panic Button VVDI BE Smart Key for Mercedes FBS3 — verified against OEM part numbers. See the full compatibility table below.

Compatible keys for Mercedes W204 W207 W212 W164 W166 W221

Before you order

• Match the year range — Mercedes changed key systems across model years. Check your registration year.
• Check your current key — the OEM number printed on your key matches the table above.
• Programming — smart keys need a compatible programmer (Xhorse, VVDI, Autel). We can advise which one works for each key.

Frequently asked questions

Which key fits my Mercedes W204 W207 W212 W164 W166 W221?

The Mercedes W204 W207 W212 W164 W166 W221 (1997-2015) uses the XSBZ01 Changeable Frequency 3+Panic Button VVDI BE Smart Key for Mercedes FBS3. Check the table above for all compatible options, verified against OEM part numbers.

Do you supply Mercedes W204 W207 W212 W164 W166 W221 keys wholesale?

Yes. We supply locksmiths and key distributors at wholesale prices with MOQ from 5 units. Message us on WhatsApp for today's price list.

Can a Mercedes W204 W207 W212 W164 W166 W221 key be programmed without the dealer?

In most cases yes, using tools like Xhorse, VVDI or Autel. We can advise the right programmer for each key SKU.

Related: All Mercedes keys · All guides · Key Finder

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