MechanMagic Audi flip key fob replacement 1997–2005 — 4-button 314MHz, 48-bit transponder

MechanMagic 4-button flip key fob replacement compatible with many Audi models (1997–2005) — a pre-tested, battery-included remote requiring locksmith cutting and programming.

If your original Audi flip key is lost, damaged or the buttons no longer respond, this MechanMagic replacement offers the same FCC ID (MYT8Z0837231) and 314 MHz frequency used by many late‑90s and early‑2000s Audi vehicles. It includes the 48-bit transponder electronics and comes ready for professional cutting and dealer or locksmith programming. This listing replaces remote part numbers like 4D0837231E and 4D0837231P, and is supplied without manufacturer logos so it is legal for aftermarket use.

Which Audi models and years will this key fob fit?

This flip key is designed for a broad set of Audi vehicles from the late 1990s through the mid‑2000s. It covers numerous A4, A6, A8, S and TT variants, including Quattro and Allroad trims in the specified year range. Always verify the remote part number on your original key and use the vehicle fitment tool to confirm compatibility.

• Compatible with Audi A4, A6, A8, S4, S6, S8, TT and Quattro models listed for 1997–2005.
• Replaces OEM part numbers: 4D0837231E, 4D0837231P and related variants.
• Operates at 314 MHz with a 48-bit transponder chip.

How do I get this remote programmed and cut?

This replacement must be professionally cut and programmed by a locksmith or Audi dealer; it cannot be self-programmed. The unit ships with electronics and a battery installed, but the transponder must be linked to your vehicle through OBD or dealer tools. Bring proof of ownership and vehicle details when you visit a pro for faster service.

• Requires locksmith or dealership for cutting and transponder programming.
• Not compatible with vehicles that need special immobilizer reconfiguration without dealer tools.
• Include vehicle VIN and original part number to speed up programming.

What are the physical and electronic features of this key fob?

The MechanMagic replacement is a brand-new flip key with four buttons and pre-installed battery and electronics. It uses a 48-bit chip and matches the OEM remote frequency and FCC ID for the applicable Audi models. The shell is non-branded, and the key arrives pre-tested to ensure the electronics function before shipping.

• Brand-new flip key shell with four function buttons and battery included.
• Transponder: 48-bit chip; Frequency: 314 MHz; FCC ID: MYT8Z0837231.
• Pre-tested electronics; sold as a non-logo aftermarket replacement.

Are there any important notes before purchasing?

Confirm the button layout and part number on your current key before ordering—Audi used multiple remote part numbers for visually similar keys. This transmitter only supports standard key vehicles; models with integrated high-security immobilizers or remote start systems may need additional steps. Returns and support are easier when you check fitment and vehicle requirements first.

• Verify remote part number and button positions match your original key.
• Works only for regular key systems; not for special factory security variants.
• Sold without dealer logo; intended as an OEM-equivalent aftermarket part.

Who this is for: Drivers of compatible Audi models (1997–2005) who need a reliable aftermarket flip key fob with the correct FCC ID and frequency, and who plan to have the key cut and programmed by a qualified locksmith or dealership. This product suits owners replacing a lost or worn remote who want OEM‑equivalent electronics and a ready‑to-program key fob.