Mercedes A-Class A250 (W177, V177) RX1.2 (ML1) ASR Exhaust Flap Control

Mercedes A-Class A250 (W177, V177) RX1.2 (ML1) ASR Exhaust Flap Control

Full control over the sound of your A-Class – anytime, at the touch of a button.

With the ASR exhaust flap control RX1.2 (ML1) You take control of the exhaust flaps of your Mercedes A250 (W177, V177). Manually control your flaps via handheld transmitter – independently of Drive Select – and enjoy the sound you really want.

Ideal for anyone who wants to control their vehicle sound flexibly and without interfering with the vehicle electronics.

Product Highlights

• Manual control of the exhaust flaps – full control via remote control

• Regardless of Drive Select – your driving profile does not determine the sound

• Plug && Play Installation – vehicle-specific connectors, no cable damage

• Freely programmable start mode – choose your favorite mode when starting the vehicle.

• No interference with the CAN bus – secure, self-contained system

• Reversible without leaving a trace – ideal for workshop or vehicle inspection appointments.

Technical details && functions

• Start mode freely programmable: Last state or desired mode at startup

• Serial mode remains even after restarting the vehicle.

• High-quality remote control: Stainless steel front, long range, elegant design

• Assembly recommendation: Plug &Play in the trunk – optimal reception, protected from the elements

• Independent system: No impact on software updates or other control units

• No error messages in the vehicle

Scope of delivery

• Control unit RX1.2 (ML1)

• Stainless steel hand transmitter

• Connection cable set (plug) && Play)

• Assembly instructions

Notes

• Not approved under German road traffic regulations (StVZO) – for racing use only.

• Installation at your own risk

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

Quality you can rely on

Made in Germany – robust, safe and durable.
Experience precise control, maximum sound freedom and the highest product quality.

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.