• AST Suspension 5100 Series Coilovers (Includes Front/Rear Top Mounts) (True Coilover) - 1990-1993 BMW 3 Series 316i Coupe/Sedan (E36)
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AST 5100 Series Coilovers BMW 3 Series E36 90-93 | 316i/318i (ACC-B1105S)

AST 5100 Series Coilovers BMW 3 Series E36 90-93 | 316i/318i (ACC-B1105S)

ACC-B1105S

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The AST 5100 Series Coilovers for the BMW 3 Series E36 (1990-1993), including 316i and 318i models, 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 superior strength and durability compared to standard twin-tube designs. The adjustable rebound allows for precise tuning to optimize ride quality and responsiveness under demanding driving conditions. Constructed with high-quality materials, these coilovers improve suspension geometry during heavy lateral and braking loads, making them ideal for both street and track use.

Designed specifically for 1990-1993 BMW 3 Series E36 models, these coilovers are a direct bolt-on upgrade for coupe and sedan variants. They are suitable for enthusiasts seeking improved performance, handling, and ride height adjustment. Installation involves replacing the factory shocks with these coilovers, which include all necessary components for a straightforward upgrade. Perfect for track days, spirited driving, or enhancing daily driving stability, these coilovers provide a significant upgrade over stock suspension systems, ensuring better control and driving enjoyment.

Overview

The 5100 Series shock absorbers for the 1990-1993 BMW 3 Series 316i Coupe/Sedan (E36) 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: ACC-B1105S
  • Product: AST 5100 Series
  • Adjustment: 1 Way
  • System: Coil Over
  • Product Note: True Coilover
  • Front/Rear Ratio: Front = 60% / Rear = 40%
  • Strut/Shock Type: Front: McPherson strut / Rear: Eye 2 pin strut
  • Model Years: 1990-1993
  • Make: BMW
  • Model: 3 Series
  • Chassis: E36
  • Spring Kit: Included
  • Top Mounts: Front / Rear Included
  • Front Top Mounts: TMA-B11-A1-20F - Camber adjustable
  • Optional Front Top Mounts: Not Available
  • Rear Top Mounts: TMA-B01-B1-30R - Solid top mounts (no camber adjustment)
  • 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: Works with OE top mounts.
Vehicle Fitment
  • 1990 BMW 3 Series 316i Coupe/Sedan (E36)
  • 1991 BMW 3 Series 316i Coupe/Sedan (E36)
  • 1992 BMW 3 Series 316i Coupe/Sedan (E36)
  • 1993 BMW 3 Series 316i Coupe/Sedan (E36)
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