Mercedes CLS (C257) RX1.2 (ML1) ASR exhaust flap control

ASR flap control RX1.2 for Mercedes (Type ML1)

Full control over the sound of your Mercedes – at the touch of a button.
The ASR flap control RX1.2 It allows you to manually control your vehicle's exhaust flaps – simply via the included remote control. Enjoy pure engine sound whenever you want, regardless of the selected driving profile.

Suitable for

• Mercedes CLS 450 (C257) with electric exhaust flap

Plug &Play Installation

The module is inserted directly between the actuator of the exhaust flap in the rear silencer area – without cutting, soldering or interfering with the CAN bus.
Thanks to vehicle-specific connectors, installation is quick, leaves no residue, and can be reversed at any time. For optimal reception, installation in the trunk is recommended.

Advantages of the RX1.2 at a glance

• Regardless of Drive Select: You decide on your sound, not the driving profile.

• True series mode: Deactivation remains active even after the vehicle is started – ideal for workshops, services or vehicle inspections.

• Freely programmable start mode: Decide for yourself whether your vehicle starts sportily or quietly.

• No software modifications: No interference from updates or other control units.

• Made in Germany: High-quality components for long-lasting, reliable function.

operation && Modes

The startup mode can be individually programmed – either the device saves the last state or always starts in your preferred mode. Programming is intuitive via the remote control, which, with its brushed stainless steel front and high range convinced.

Other features

• Reversible at any time without leaving any trace

• No error messages in memory

• Robust construction for continuous operation

• Designed specifically for electric flap systems

Notes

• Not approved according to German road traffic regulations (StVZO) – exclusively for racing.

• Installation at your own risk

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

ASR RX1.2 – the smart solution for real driving pleasure.
Experience sound, control and quality – Made in Germany.

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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.