Arnott Industries MR-3852 front suspension strut for the 2017-2020 Audi RS3 and other vehicles is a magnetic ride strut that adjusts damping on demand. It restores the factory ride and handling of a magnetically controlled suspension and connects to the ECU with no modifications.
- Monotube damper filled with magnetorheological fluid, a synthetic hydrocarbon oil with easily magnetized iron particles
- Two electromagnetic coils change the fluid's viscosity and stiffness when switched on
- One strut design for either the left or the right side
- Adjustable damping for an active suspension system
Quick facts
- Part: Arnott Industries MR-3852 suspension strut
- Fits: the 2017-2020 Audi RS3 and other vehicles
- Position: Front
- Condition: New
A worn strut can show up as a floaty ride, fluid on the damper body or uneven tire wear. These signs alone do not prove the strut is the problem, since worn tires can feel much the same. This listing is one strut, and both front sides are normally replaced together.
Fits
The strut fits the 2017-2020 Audi RS3 and the 2015-2020 Audi S3, on either side, and it has an OES design and components.
Specifications
Fit and size
- Position: Front
- Quantity per vehicle: 2
- Upper mount type: Stud
- Lower mount type: Base cup
- Body end measuring point: Center eye
Build and materials
- Construction: Single tube
- Damping: Adjustable
- Suspension type: Active
- Spring seat: Included
- Condition: New
- Country of origin: Poland
In the box
One suspension strut with its spring seat; the vehicle takes two. Mounting hardware, springs, bearing plate, boot and spring isolators are not included, so plan on new fasteners.
Interchange: 8V0413029K · 8V0413029P
Frequently Asked Questions
Does the Arnott Industries MR-3852 strut fit the 2015-2020 Audi S3?
Yes. Arnott Industries MR-3852 is a front strut that fits the 2015-2020 Audi S3 and the 2017-2020 Audi RS3, and the same part goes on the left or right side.
What fluid is inside this magnetic ride strut?
Magnetorheological fluid, a synthetic hydrocarbon oil carrying magnetized iron particles, fills the monotube damper. When the two electromagnetic coils are switched on, they alter its viscosity and stiffness.
Do I need to buy springs or mounting hardware separately for this strut?
Yes. The Arnott Industries MR-3852 comes with a spring seat but not springs, a bearing plate, a boot, spring isolators or mounting hardware.
Does this strut need modifications to connect to the ECU?
No. This front strut connects to the vehicle's ECU with no modifications.
What can a worn magnetic ride strut feel like?
A knock over bumps or a body that keeps bouncing after a dip can be signs of wear. A shop can test the adjustable damping.
