• AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) - 2012+ Mercedes-Benz B-Class (W176)
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AST 5100 Series Coilovers | Mercedes-Benz B-Class W176 (13-20) (ACU-M5002S)

AST 5100 Series Coilovers | Mercedes-Benz B-Class W176 (13-20) (ACU-M5002S)

ACU-M5002S

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$3,491.67 USD
$4,190.00 USD $3,491.67 USD
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The AST 5100 Series Coilovers for the Mercedes-Benz B-Class W176 (2013-2020) are high-performance suspension components designed to enhance handling and stability. Featuring inverted, upside-down shock absorber technology, these coilovers are race-proven and deliver increased strength and durability. The design improves suspension geometry under heavy lateral and braking forces, making them ideal for spirited driving on both road and track. The 5100 Series coilovers offer adjustable rebound damping via a single knob, allowing for customized ride tuning. Constructed with high-quality materials, these coilovers provide superior performance compared to standard twin-tube shocks, ensuring better control and responsiveness.

Designed specifically for 2012 and newer Mercedes-Benz B-Class W176 models, these coilovers are a direct bolt-on upgrade that fits vehicles equipped with the ACU-M5002S suspension system. They are suitable for street, track, and performance driving applications, offering improved handling dynamics and ride quality. Installation is straightforward for those familiar with suspension upgrades, and the kit includes the necessary components for a complete upgrade. These coilovers are ideal for enthusiasts seeking enhanced cornering, reduced body roll, and a more aggressive stance, making them a versatile choice for both daily driving and track days.

Overview

The 5100 Series shock absorbers for the 2012+ Mercedes-Benz B-Class (W176) utilize inverted / upside down technology. The inverted design is race proven technology and produces an extremely strong damper, providing better suspension geometry under heavy lateral and braking loads as seen in a road and track environment.

The 5100 Series shock absorbers give your car a better performance than the standard twin tube design. With the 5100 Series suspension you can adjust rebound with one knob. The adjust platform allows you to adjust the ride height of your car. AST suspension shock bodies are specially designed to keep maximum stroke, even with a lower ride height.

How a Monotube design works?

Monotube design is essential for performance. The oil and nitrogen are separated by a floating piston, and allows the use of a larger piston, increasing the damper performance and sensitivity felt by the driver, all this added together produces more grip, gives more control and driver feedback from your vehicle.

What is a rebound adjustment?

Rebound controls the rate of extension of your shock absorber. By changing the rebound you can directly change the characteristics of the vehicle.

Features

  • Floating piston design with high pressure nitrogen means no cavitation around the piston.
  • 14mm diameter internal shaft.
  • 44.5 mm diameter shaft struts, inverted.
  • Steel cylinder body shocks, inverted.
  • High end, track ready suspension.
  • Rebound adjustable ('Singles').
  • Low friction seal.
  • Adjuster knobs permanently mounted on the dampers.
  • Designed to use OEM top mounts.
  • Rubber bushings for 'eye' shock mounts.
  • Includes springs.
  • Rebuildable.
  • Optional spherical top mounts.
  • Optional DLC (diamond like carbon) coated shafts.
  • Optional DDP (double digressive piston).
    • Double Digressive Pistons are recommended for use on the non-driven wheels.
    • 4WD/FWD vehicles: DD pistons for both rear axle struts/shocks.
    • RWD vehicles: DD pistons for both front axle struts/shocks.
  • Optional custom valving.
Specifications
  • Part Number: ACU-M5002S
  • Product: AST 5100 Series
  • Adjustment: 1 Way
  • System: Separate Setup
  • Product Note: Non Coilover
  • Front/Rear Ratio: Front = 60% / Rear = 40%
  • Strut/Shock Type: Front: Bracket McPherson strut / Rear: Eye 2 pin strut
  • Model Years: 2012+
  • Make: Mercedes-Benz
  • Model: B-Class
  • Chassis: W176
  • Spring Kit: Included
  • Top Mounts: Front / Rear Optional (If Available)
  • Optional 1 Front Top Mounts: Not Available
  • Optional 2 Front Top Mounts: Not Available
  • Optional Rear Top Mounts: Not Available
  • Adjustable Front Droplinks Available? No
  • Adjustable Front Droplinks Required? No
  • Adjustable Rear Droplinks Available? No
  • Adjustable Rear Droplinks Required? No
  • DDP Pistons Included? No
  • DDP Pistons Available? Yes
  • DLC Coated Shafts Included? No
  • DLC Coated Shafts Available? Yes
  • QDC Included? No
  • TUV Approved?
  • Comments: -
Vehicle Fitment
  • 2012 Mercedes-Benz B-Class (W176)
  • 2013 Mercedes-Benz B-Class (W176)
  • 2014 Mercedes-Benz B-Class (W176)
  • 2015 Mercedes-Benz B-Class (W176)
  • 2016 Mercedes-Benz B-Class (W176)
  • 2017 Mercedes-Benz B-Class (W176)
  • 2018 Mercedes-Benz B-Class (W176)
  • 2019 Mercedes-Benz B-Class (W176)
  • 2020 Mercedes-Benz B-Class (W176)
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