MechanMagic Audi Replacement Flip Key Fob — Fits A4/A6/A8/TT 1997–2005, 314MHz 4-Button

MechanMagic replacement flip key fob is a ready-to-program, 4-button keyless remote compatible with many Audi models from 1997–2005 (FCC ID: MYT8Z0837231) operating at 314MHz with a 48-bit Crypt transponder.

If your original Audi flip key is lost, damaged, or worn, this MechanMagic replacement offers the same button layout and electronics so a locksmith or dealer can cut and program it to match your vehicle. The housing is a direct-style swap designed to replace remote part numbers 4D0837231E, 4D0837231P and related variations, and it ships with a battery and pre-tested electronics. Because Audi flip keys can share several remote part numbers, verifying your existing key’s reference before ordering helps ensure fitment.

Will this fob work with my specific Audi model and year?

Compatibility covers a broad set of Audi vehicles, but precise fit depends on the original remote part number and the vehicle’s factory configuration. Use the vehicle fitment tool or compare your current key’s part number to confirm.

• Compatible models: A4, A6, A8, Allroad Quattro, S4, S6, S8, TT and Quattro variants from listed years.
• Model years included: 1997–2005 across specific model lines—check your year and trim.
• Replaces remote part numbers like 4D0837231E and 4D0837231P (verify before purchase).
• Frequency and chip: 314MHz with 48-bit Crypt transponder for matching security systems.

How is the key programmed and cut?

This MechanMagic unit arrives with electronics and a battery installed but requires professional cutting and programming. Self-programming is not supported; a qualified locksmith or Audi dealer must complete the final steps.

• Transponder: Built-in 48-bit Crypt chip requires cloning or dealer programming.
• Cutting: Locksmith cutters or dealership key cutters are required to replicate your metal key blade.
• Programming: Dealer or locksmith uses diagnostic tools to synchronize the remote and immobilizer.
• Pre-check: Confirm your vehicle accepts the listed FCC ID (MYT8Z0837231) and remote part numbers.

What do I get in the package and how reliable is the fob?

The fob ships as a brand-new item with battery and fully tested electronics, packaged to be ready for cutting and programming. MechanMagic tests functionality before dispatch to reduce the chance of dead electronics on arrival.

• Included: 1 x 4-button flip key fob with battery and installed electronics.
• Condition: 100% new non-logo housing compatible with Audi/VW style fobs.
• Testing: Units are pre-tested with professional tools prior to shipping.
• Limitation: Works only on regular-key vehicles (not integrated remote-start or dealer-only secure keys).

Who is this for? MechanMagic’s replacement flip key is designed for Audi owners, independent locksmiths, and service shops needing a reliable, ready-to-program remote for late-1990s to mid-2000s Audi models. If you have the matching remote part number and your vehicle uses a standard 314MHz 48-bit transponder, this fob is a practical replacement option to restore keyless entry and remote locking functions. If uncertain, capture your existing key’s part number and consult your locksmith or dealer before purchasing to confirm fitment and programming requirements.