Key programmer
The Keydiy KD-X4 is a key programming and diagnostic device used by automotive locksmiths. Our database has confirmed coverage on 21 key variants across 15 models from 10 makes.
Tools / Keydiy KD-X4
Used by
8%
of 247 tracked locksmiths
Makes covered
10
Across our tracked vehicles
Models covered
15
Variants covered
21
Adapters required
13
5C/5D circuit interface board for key PCB connection. KD ZB remote blank required. MQB license activation required., Bench reading of the cluster EEPROM needs the dedicated VAG Immo 4 cluster cable.…
Tokens
Yes
Per-operation cost on some links
Aggregated from every variant our research has confirmed. The headline tool price typically does not include these.
BDC2 / BDC3 adapter
1 useAdapter pair required for BMW BDC2 / BDC3 add-key on G-chassis.
Other notes
14 usesAdapter notes that don't match a known code. Hover for the original wording.
What you'll pay beyond the device itself.
This tool uses tokens for some operations. Token costs are listed per-vehicle in the coverage table below — plan for these on top of the headline price.
What other kit owners of this tool typically have. Drawn from Keysolved locksmiths' tracked tools.
15 vehicle rows confirmed across 10 makes.
How KD-X4 stacks up on covered vehicles.
Latest variants linked to this tool in our database.
Jaguar XF
Smart Key 5-button (2021-2024 facelift, RFA)
Land Rover Range Rover Velar
Smart Key 5-button PEPS/UWB (2021-2024, RFA)
Audi A3
Smart Key 3-button with Comfort Key (UWB keyless entry)
Audi A3
Smart Key 3-button (keyless start, no Comfort Key)
Volkswagen Tiguan
3-Button Flip Remote (standard, non-KESSY)
Volkswagen Caddy
Non-remote Transponder Key (2010-2015 facelift)
A3
2020–2026 · europe · 8Y (Typ 8Y, MQB Evo) — includes S3 and RS3
A3
2020–2026 · europe · 8Y (Typ 8Y, MQB Evo) — includes S3 and RS3
Enyaq
2020–2024 · europe · MEB (1st generation)
Scala
2019–2024 · europe · NW (type NW1), MQB-A0