Arnott MR-3855 Suspension Strut - Front

Arnott Magnetic Front Strut for Audi TT/TTS

The Arnott MR-3855 is a front magnetic shock for select 2016-2023 Audi TT RS Quattro and TTS Quattro models with electronic suspension. It restores the adaptive ride behavior expected from the factory magnetic suspension system while maintaining direct ECU communication with no vehicle modifications.

Built as a monotube damper, this Arnott Magnetic Strut uses magnetorheological fluid and internal electromagnetic coils to change damping response in real time. The result is a front suspension strut that supports the Audi TT RS Quattro and Audi TTS Quattro’s electronically controlled ride characteristics.

Key Features

• Arnott Magnetic Strut line for electronically controlled suspension
• Front suspension strut for Audi TT RS Quattro and Audi TTS Quattro applications
• Monotube internal construction for consistent damping response
• Magnetorheological fluid changes viscosity when the system is energized
• Adjustable damping function through the vehicle’s electronic suspension system
• New part with base cup lower mount and stud upper mount
• Spring seat included; spring, boot, and mounting hardware are not included
• Direct ECU connection with no modifications required

Detailed Description

Part number MR-3855 is an OES-style front magnetic shock engineered for the 2016-2023 Audi TT RS Quattro and 2016-2023 Audi TTS Quattro. Arnott’s Magnetic Strut product line focuses on electronically controlled suspension components that preserve the factory adaptive ride behavior, making this unit a direct replacement option for vehicles equipped with magnetic ride technology. This part cross-references Audi 8S0413029F for the same application.

What It Helps Address

• Front suspension damping that no longer responds correctly to electronic commands
• Ride quality changes caused by worn magnetic shock internals
• Suspension warning lights related to front electronic damping faults
• Loss of adaptive firmness or softness in the front suspension
• Uneven front-end control over bumps, dips, and road transitions

Installation Notes

MR-3855 installs at the front position and connects to the vehicle ECU without modifications. Verify electronic suspension equipment before ordering, since fitment is limited to TT RS Quattro models with electronic suspension and TTS Quattro models with magnetic strut applications. Transfer any reusable components as needed during service, and confirm mount style and suspension coding before final installation.

Quality Assurance

Arnott manufactures this magnetic shock as a new replacement component with standard-grade construction and OE-style electronic integration for the Audi TT/TTS platform.