Mercedes-Benz GLE/GLS Coding & Firmware Upgrade Review

New GLE/GLS Coding is Back: Don't Miss This Opportunity

Exciting news for owners of the new Mercedes-Benz GLE and GLS models! After a period of being unavailable, the coding options for these vehicles have been re-enabled. However, it's uncertain how long this window will remain open. If you've been considering coding for your GLE or GLS, this might be your last chance to take advantage of it. This review covers a recent coding session on a new GLE at Today's Car Goyang, detailing the features now available and what you should prioritize.

The Highly Anticipated Sport+ Mode is Now Available

Among the most sought-after coding features for new Mercedes-Benz GLE models is the 'Sport+ Mode'. Many owners have been eagerly awaiting its release. Sport+ Mode offers a significant enhancement to the driving dynamics. When activated, it allows the suspension height to be adjusted from level 0 down to -2. This results in noticeably improved stability during high-speed driving. Beyond just lowering the vehicle, it optimizes the driving angle and weight distribution, reducing body roll during cornering. Owners who have experienced this upgrade often report feeling more secure and confident on the highway.

In our recent new GLE upgrade, Sport+ Mode was the first feature to be applied. You can observe the suspension height adjusting in real-time through the vehicle's menu. The change in the car's stance when lowered to the -2 level is quite apparent.

Expanded Active Driving Assist Features: 7 Key Upgrades

Equally popular as Sport+ Mode is the expansion of the Active Driving Assist (ADA) features through coding. Let's explore the specific ADA functions that have become available with the recent GLE/GLS coding unlock:

1. Extended Auto Start/Stop After Stopping: The system, which previously disengaged automatically after about 3 seconds of stopping at a signal, can now be set for a much longer duration. This is particularly useful if you momentarily miss the signal to resume driving. The duration can be customized to your preference.
2. Delayed Steering Wheel Grip Warning: During ADA operation, a warning to grip the steering wheel sounds after a certain period. This upgrade allows you to extend the time before this alert appears, helping to maintain focus without unnecessary interruptions.
3. Automatic Lane Change with Turn Signal: This is a particularly impressive feature. When you activate the turn signal, the car automatically changes lanes in that direction. It's a remarkable function that often surprises first-time users.
4. Traffic Sign Recognition Speed Adjustment: The system uses cameras to read speed limit signs on the road and automatically adjusts the vehicle's speed accordingly. An ON/OFF setting is available, as you might occasionally miss a sign.
5. Curve Speed Adaptation: The vehicle detects upcoming curves and automatically reduces speed. This is a safety feature that minimizes body lean when navigating highway curves.
6. Active Lane Change Assist: While the turn signal is active, the car automatically performs the lane change. This is one of the crucial functions for repeated coding applications.
7. Additional Convenience Coding: Beyond the ADA suite, various everyday convenience features can also be applied alongside the main coding package.

The Coding & Firmware Upgrade Process

The coding process for these new Mercedes-Benz models involves accessing the vehicle's ECU (Electronic Control Unit) using a diagnostic scan tool. It's crucial to apply verified coding files accurately rather than making random adjustments. The procedure typically involves the following steps:

1. Diagnostic Connection: The vehicle is connected to a specialized diagnostic tool.
2. ECU Access & Data Backup: Secure access is gained to the relevant ECUs, and a backup of the original data is created.
3. Coding File Application: Verified coding files are precisely applied to modify specific parameters.
4. Function Testing: All newly activated features are thoroughly tested to ensure they operate correctly.

This meticulous process ensures that your Mercedes-Benz GLE or GLS receives the desired upgrades safely and effectively, enhancing your driving experience.