Mercedes G-Class G500 RX1.2 (ML2) ASR exhaust flap control

Mercedes G-Class G500 RX1.2 (ML2) ASR Exhaust Flap Control

Experience full control over the sound of your G-Class:
The ASR exhaust flap control RX1.2 (ML2) was specially designed for the Mercedes G500 W464 developed and allows you to control the exhaust flaps manually – regardless of the Drive Select mode.

Decide with a high-quality hand-held transmitter herselfYou can control when the flaps are open or closed. This allows you to actively determine the sound character of your vehicle – sporty and loud or subtle and comfortable.

Your advantages at a glance

• Regardless of Drive Select: The sound remains your choice – not the driving profile.

• True series mode: Can be completely deactivated if required – ideal for workshops, vehicle inspections or service.

• Freely programmable start mode: You decide which mode your vehicle starts in.

• No interference with the CAN bus: Safe operation without affecting other control units.

• Plug &Play Installation: Original plugs, no cable damage, no power thieves.

• Reversible without leaving any trace: Easily reversible to factory settings at any time.

Technical details && Assembly

• Configurable start mode: Last state or individual mode selectable at startup.

• Assembly: Plug && Play – vehicle-specific connectors directly on the exhaust flaps.

  • Recommended position: Trunk (optimal reception, protection from the elements)

• No error messages – Standalone system without CAN bus intervention.

• Handheld transmitter:

  • Elegant stainless steel front, high-quality feel

  • Long range

  • Secure, reliable signal transmission

Quality && Security

• Made in Germany – designed and manufactured for maximum reliability.

• A notice:

  • Not approved according to German road traffic regulations (for racing use only)

  • Do not close flaps completely at full load

  • Installation at your own risk

  • No liability is accepted for failure to comply with the installation and usage instructions.

Scope of delivery

• ASR RX1.2 (ML2) control unit

• Handheld transmitter

• Vehicle adapter cable set

• Assembly instructions

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.