If you are a locksmith working on modern Audi models (2018+), particularly Japanese imports like the Audi Q5, you’ve likely encountered a common frequency hurdle. While UK and European models standardly operate on 433MHz (434MHz), Japanese domestic market (JDM) Audis utilize the 315MHz frequency for their MLB system.
A frequent question we receive is: “Can I simply reconfigure a 433MHz Keydiy MLB remote to 315MHz using the KD-MP tool?”
Here is the definitive guide to managing KEYDIY MLB frequencies and ensuring a successful key generation.
The Hardware Reality: Fixed Frequencies
Unlike some universal smart keys that allow frequency switching via a button sequence or software toggle, Keydiy MLB remotes (such as KD MLB08, MLB19, MLB26, and MLB65) have fixed hardware frequencies.
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No Post-Program Swapping: Once a 433MHz MLB key is manufactured and programmed, its frequency is “locked.” There is no firmware update or software trick within the KD-MP to shift it to 315MHz.
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Hardware Matching: The remote’s internal oscillator and antenna circuit are tuned specifically to the designated frequency. Using a 433MHz key on a 315MHz Japanese import will result in the immobilizer potentially syncing, but the Remote Keyless Entry (RKE) functions will not work.
For a 2018 Audi Q5 imported from Japan, you must source a dedicated 315MHz MLB Smart Key.
Pro Tip: Expect a price variance. Due to lower production volumes and specialized components, 315MHz MLB solutions typically carry a higher trade price than the standard 433MHz European versions.
Quick Rules for Locksmiths
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Check the VIN/Origin: If the Audi is a Japanese import, always verify the original key frequency first.
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Buy Specific, Not Universal: Do not buy 433MHz stock hoping to “convert” it for 315MHz jobs. It won’t work.
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Validate the Tool: Ensure your MLB programming tool (KD-MP or VVDI) is updated to the latest firmware to support the 315MHz data protocols.
Looking for 315MHz MLB Solutions?
We understand that sourcing 315MHz MLB remotes in the UK can be difficult. If you have a Japanese import in your workshop and need a guaranteed 315MHz KD-compatible remote, we can help.