Mercedes-Benz S-Class (222/217) RX1.2 (ML2) ASR Exhaust Flap Control

ASR flap control RX1.2 for Mercedes (2 electric exhaust flaps, type ML2)

Experience full control over the sound of your Mercedes – with the ASR flap control RX1.2.
The module will simply Plug & Play inserted between the actuators of the exhaust flaps in the rear silencer area – without interfering with the CAN bus or changes to the vehicle software.

Compatible with:

• Mercedes S450 (W222, C217)

• Mercedes S500 (W222, C217)

• Mercedes S560 (W222, C217)

Your advantages at a glance

• Manual control via hand-held transmitter – You decide when the flaps are open or closed.

• Regardless of Drive Select – the driving mode does not affect the sound.

• True serial mode – Module remains deactivated even after restarting, ideal for workshops or vehicle inspections.

• Freely programmable start mode – Define how your vehicle sounds when starting.

• No interference with the CAN bus – no risk to other control units, no software problems.

• Plug & Play Montage – Original connectors, no cable damage, reversible at any time.

Technical details

The Start mode can be freely programmed:

• Last state: The device remembers the last mode.

• Set manually: Desired mode can be learned at the touch of a button.
  The flaps confirm the programming by opening and closing five times.

The Assembly It takes place in the trunk – protected from the weather and with optimal reception.
Thanks to vehicle-specific connectors, installation is simple, safe and leaves no residue.

Handheld transmitter

• High-quality stainless steel front

• Elegant design with long range

• Precise and reliable operation

Made in Germany – Quality you can rely on

The RX1.2 is specifically designed for electric flap systems and offers a safe, long-lasting operation – without error messages or malfunctions.

A notice:
Only for the Racing operations – not approved according to the German Road Traffic Regulations (StVO).
Installation at your own risk. Do not close flaps completely during full load operation.

We receive a large number of custom orders and inquiries daily, so it's not always possible for us to have every item in stock at all times. If you need the item urgently, please contact us. here to our sales team, to check stock levels before making your purchase.

We completely understand if you are unsure whether a part is compatible with your car. Therefore, we strongly recommend that you contact your vehicle manufacturer here. Inquiry to us Please contact us. Our friendly sales team will then get in touch with you to confirm if this part is the correct one you are looking for.

All our products come with a standard 2-year warranty. However, this depends on the type of product. See details below. here.

At Upgrade my Car (R-Trade GmbH), we place great importance on fully informing our customers about the intended use of our products. Please note that, unless otherwise specified, all our products are specifically designed for professional racing use. They are intended exclusively for use in competitions on racetracks sanctioned by an officially recognized racing organization. We would like to point out that any use of our products outside of these conditions, including recreational off-road driving, may potentially violate local, state, or federal laws. It is important to understand that Upgrade my Car (R-Trade GmbH) assumes no liability for the legality of using our products on public roads. The responsibility for complying with applicable laws lies solely with the purchaser. We strongly recommend that our customers familiarize themselves with and comply with the relevant legal regulations before using our products.