Mercedes-Benz S-Class (223) RX1.2 (ML2) ASR Exhaust Flap Control

ASR RX1.2 exhaust flap control for Mercedes – full control over the sound

Experience pure performance – with the ASR RX1.2 flap control for Mercedes-Benz models with two electric exhaust flaps (type ML2).
The module is connected directly to the actuators of the exhaust flaps in the rear silencer area – completely plug & play and without any intervention in the CAN bus.

Compatible with:

S500, S580, S680, S63 e (Class 223)

Maximum control over your vehicle sound

With the ASR RX1.2 you have the choice: Whether discreet in Comfort mode or emotional in Sport mode – you decide when your exhaust flaps open or close.
The system is conveniently controlled via a hand-held transmitter with an elegant stainless steel front and long range.

Your advantages at a glance

• Regardless of Drive Select: The sound does not depend on the driving profile.

• True production mode: Ideal for workshops, vehicle inspections or service.

• Freely programmable start mode: Choose how your vehicle sounds – right from the start.

• No interference with the CAN bus: No impact on other control units or software updates.

• Plug & Play: Easy installation with original connectors, no cable damage

• Reversible without leaving a trace: For a clean, safe installation

Assembly

The installation is straightforward and reversible .
Recommended position: trunk – for optimal reception and protection from the elements.
All cables are sufficiently long, and vehicle-specific connectors are included.

Handheld transmitter

• Elegant design with brushed stainless steel front

• Long radio range

• Precise control at the touch of a button

Technical Highlights

• Standalone system without CAN bus connection

• No error messages

• Safe operation specifically for electric flap systems

• Designed and manufactured in Germany

Notes

• Not approved for road use (for racing purposes only)

• Installation at your own risk

• The flaps should not be completely closed at full load.

Made in Germany – Quality that convinces

With the ASR RX1.2 flap control system, you receive a high-quality, durable branded product that combines uncompromising performance and easy operation.