1. Introduzione
The XHORSE XNAU02EN Wireless Universal Remote Key is a high-quality, 4-button remote designed for use with the VVDI Key Tool. Featuring an NXP chip and an Audi-style design, this remote key provides reliable wireless functionality for vehicle access and control. This manual provides essential information for the proper setup, operation, and maintenance of your XNAU02EN remote key.
2. Prodotto finitoview
The XHORSE XNAU02EN remote key is a versatile solution for automotive key replacement and duplication. It comes in an original size and features a durable plastic casing. The internal circuit board includes an NXP chip for secure communication and control.

Figure 1: XHORSE XNAU02EN Wireless Remote Key (Audi Style) and its internal circuit board, highlighting the NXP chip and battery socket.

Figura 2: Fronte view of the XHORSE flip wireless remote key (4 buttons) with key product specifications.

Figura 3: dettagliata view of the internal circuit board, showing the power chip, control chip, buttons, and CR2032 battery socket.
3. Specifiche
| Caratteristica | Dettaglio |
|---|---|
| Model Number (PN) | XNAU02EN |
| Numero di pulsanti | 4 |
| Trasmettitore | SÌ |
| Dimensioni del prodotto | 2.97 x 1.41 x 0.77 pollici (7.54 x 3.58 x 1.96 cm) |
| Peso del prodotto | 1.856 once (52.61 grammi) |
| Modello della batteria | CR2032 (non incluso) |
| Materiale | Plastica |
| Funzione R/C | CON |
| Personalizzazione | NO |
| Paese/regione di produzione dell'auto | Cina |
| Compatibilità | Strumento chiave VVDI |
4. Impostazione
4.1 Installazione della batteria
- Aprire con cautela la chiave del telecomando casing. Refer to Figure 4 for a visual guide on the disassembled key components.
- Locate the battery socket on the circuit board (Figure 3).
- Insert a new CR2032 battery into the socket, ensuring correct polarity (+ side up).
- Chiudere la chiave remota casing in modo sicuro.

Figura 4: Smontato view of the remote key showing the outer casing, circuit board with battery, and back cover.
4.2 programmazione chiave
The XHORSE XNAU02EN remote key requires programming to function with your specific vehicle. This process typically involves using a specialized diagnostic tool, such as the VVDI Key Tool, to pair the remote with your car's immobilizer system. It is highly recommended that key programming be performed by a qualified automotive locksmith or technician to ensure proper functionality and security.
- Consult your VVDI Key Tool manual for specific programming instructions for Audi-style keys.
- Ensure the vehicle's battery is adequately charged during the programming process.
5. Istruzioni per l'uso
Once successfully programmed, the XNAU02EN remote key operates like a standard vehicle remote. The 4 buttons typically correspond to the following functions:
- Pulsante di blocco: Premere per bloccare tutte le portiere del veicolo.
- Pulsante di sblocco: Premere per sbloccare tutte le portiere del veicolo.
- Pulsante di apertura del bagagliaio: Premere per aprire il bagagliaio o il portellone posteriore del veicolo.
- Pulsante antipanico: Press and hold to activate the vehicle's alarm system (horn and lights).
Ensure you are within range of your vehicle for the remote functions to work correctly. Obstructions or interference may affect the remote's range.

Figura 5: Angolato view of the assembled XHORSE wireless remote key.
6. Manutenzione
- Sostituzione della batteria: Replace the CR2032 battery when the remote's range decreases or it stops responding. Refer to Section 4.1 for battery installation steps.
- Pulizia: Wipe the remote key with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials that could damage the plastic casing o pulsanti.
- Magazzinaggio: Store the remote key in a cool, dry place away from direct sunlight and extreme temperatures.
- Evitare l'esposizione all'acqua: The remote key is not waterproof. Avoid exposing it to water or excessive moisture.
7. Risoluzione Dei Problemi
- Il telecomando non risponde:
- Check the battery. Replace the CR2032 battery if it is low or dead.
- Ensure the key is properly programmed to your vehicle. If it was recently programmed, re-verify the steps or consult a technician.
- Check for signal interference from other electronic devices.
- Portata ridotta:
- La batteria potrebbe essere scarica. Sostituire la batteria CR2032.
- Environmental factors (e.g., large buildings, radio interference) can affect range.
- Pulsanti non funzionanti:
- Ispezionare i pulsanti per verificare la presenza di danni fisici o detriti.
- If only specific buttons fail, it might indicate an internal circuit board issue, requiring professional inspection.
8. Suggerimenti per l'utente
- Always keep a spare key, if possible, in case of loss or malfunction of your primary remote.
- When replacing the battery, ensure you use a high-quality CR2032 battery to maximize performance and lifespan.
- If you experience persistent issues, it is often best to consult a professional automotive locksmith or technician who has the necessary diagnostic tools.
9. Garanzia e supporto
For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase. Any unauthorized modification or improper use of the product may void the warranty.





