Smart Fortwo + Key Replacement Guide

Last updated: September 2026 · Verified against OEM part numbers

Compatible keys for Smart Fortwo +

Before you order

• Match the year range — Smart 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

What frequency is the Smart Fortwo + key?

The Smart Fortwo + key operates on 433 MHz. Frequency is fixed in the key hardware and cannot be reprogrammed — a key bought on the wrong frequency will not lock, unlock or start the car.

What chip does the Smart Fortwo + key use?

The Smart Fortwo + uses a 4A chip. Tell your supplier the chip type when ordering so you receive the correct blank — an ID46 blank will not replace an ID47 or 4D83 key.

Which key fits my Smart Fortwo +?

The Smart Fortwo + (2015) uses the 433MHz 4A Chip VA2 Remote Head Key for Smart Fortwo Forfour. Check the table above for all compatible options, verified against OEM part numbers.

Do you supply Smart Fortwo + 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.

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