The DAS 3 ELV (ESL - Electronic Steering Lock) in Manual and 5G Tronic (722.6) Mercedes-Benz Cars: An In-Depth Technical Guide

The DAS 3 ELV (ESL - Electronic Steering Lock) is a crucial component in modern Mercedes-Benz cars, providing advanced security features and ensuring driver safety. It is installed in both manual and 5G Tronic (722.6) cars and plays a key role in immobilizing the steering wheel and preventing unauthorized access. In this comprehensive technical guide, we'll take a deep dive into the DAS 3 ELV, exploring its functions, installation, and common fault codes.

Installation
The installation of the DAS 3 ELV in manual and 5G Tronic (722.6) cars is slightly different, depending on the vehicle model and year. In manual cars, the DAS 3 ELV is usually located near the steering column and works in tandem with the key and lock. In contrast, in 5G Tronic (722.6) cars, it is installed on the upper section of the steering wheel and interacts with the transmission control module.

Functions
The DAS 3 ELV performs various critical functions, including acting as a steering lock that immobilizes the vehicle's steering wheel when the key is not in the ignition. This feature makes it nearly impossible for thieves to steer the vehicle or tow it away. Additionally, it provides enhanced security features by requiring a unique code from the key fob to unlock the steering wheel and start the engine. Furthermore, the DAS 3 ELV is integrated into the DAS 3 anti-theft system, providing an additional layer of security.

Common Fault Codes
Despite the DAS 3 ELV's reliability, it can experience failures that result in fault codes. These fault codes are instrumental in diagnosing and repairing the issue.

Here are some of the most common fault codes associated with the DAS 3 ELV:

1. Fault code 9005: This code indicates a failure in the key fob or its battery.
2. Fault code 9051: This code indicates a DAS 3 ELV failure.
3. Fault code 9073: This code indicates a communication failure between the DAS 3 ELV and the electronic ignition switch (EZS).
4. Fault code 9077: This code indicates a failure in the DAS 3 ELV control unit.

Diagnosing and Repairing Fault Codes
To diagnose and repair the fault codes associated with the DAS 3 ELV, specialized knowledge and equipment are required. Mercedes-Benz dealerships and repair shops have the necessary tools and expertise to diagnose and repair these issues. Common repair options include replacing the key fob battery, repairing or replacing the DAS 3 ELV, or replacing the control unit.

Electronic Repair Online Shop