The VW–Audi–Porsche Steering Lock Emulator (2008+) is a professional ESL/ELV replacement module designed for A4, S4, S5, RS5, Q5, Touareg, Cayenne, Panamera, and Porsche sports models.
Steering lock failure is extremely common in these platforms due to worn mechanical actuators inside the ESL unit. When the OEM steering lock fails, the vehicle will not start even if the key, ignition switch, and immobilizer are fully functional.

This emulator replaces the defective steering lock module and restores full start authorization.
Unlike newer plug-and-play models, this version requires programming of the vehicle’s immobilizer/ESL data using a suitable diagnostic/programming tool.

Built by MK3, the emulator includes stable CAN communication, lock-sound output, and OEM-grade reliability.

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🔧 Features

• Type: ESL / ELV Steering Lock Emulator
• Supported Platforms: VW – Audi – Porsche 2008+
• Manufacturer: MK3
• Product Number: MK20230
• OEM-Compatible Part Numbers:
 8K0905852D, 7PP905852C, 4H0905852B, 7PP905852B, 8K0905852E
• Programming Required: Yes (immobilizer data must be written)
• Lock Sound: Integrated lock/unlock sound simulation
• LED Indicators:
 – Green READY (ELV open)
 – Red POWER (ELV closed / error state)
• Condition: Brand new
• Weight: 40 g

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⚙️ Technical Overview

The steering lock (ESL/ELV) in VW, Audi, and Porsche vehicles is prone to mechanical failure.
When the internal lock motor jams or the module loses synchronization:

• The key is detected normally
• The dashboard responds
• The vehicle does not start because the ESL cannot unlock the steering column

OEM repair requires ordering a new steering lock (often expensive) and programming it to the vehicle.

This emulator replaces the original ESL and restores vehicle start authorization after proper programming.

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🛠️ Installation Notes

1. Remove the original ESL from the steering column.

2. Read/program the required ESL/immobilizer data using your preferred tool.

3. Write the data to the emulator.

4. Install the emulator in place of the factory steering lock.

5. Verify READY (green LED) indication and start the vehicle.

If the red LED blinks, stored ESL/immobilizer faults must be cleared via diagnostic tool.

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🚗 Vehicle Compatibility

Audi

• A4 (2008–2012)
• S4 (2008–2012)
• S5 (2011–2014)
• RS5 (2010–2016)
• Q5 (2008–2012)

Volkswagen

• Touareg (2011–2018)

Porsche

• Panamera (2010–2016)
• Cayenne (2011–2018)
• Boxster (2019–2026)
• Cayman (2019–2026)
• 911 Carrera (2012–2016)
• GT4 (2019–2026)