AST 5100 Street Coilovers for BMW M3 E46 - ACS-B1103SD
Coilover kit
£2,568.00 inc. VAT
Representative product photograph. Exact hardware varies by application.
AST 5300 3-Way Motorsport Coilovers for BMW M3 E46 - RAC-B1103SD
£5,376.00 inc. VAT
Check the chassis, model years and kit specification below before ordering.
BMW · M3 E46
Check fitment with us Delivery and final totals are calculated for your postcode at checkout.
Your kit, in detail.
Check these application specifications against your exact car and selected configuration.
Photographs are representative. Multiple values below cover different applications; they are not a guarantee for every vehicle. Confirm current availability and lead time with us.
- Damping adjustment
- Independent rebound plus high- and low-speed compression adjustable
- Damper design
- Monotube
- Top mounts
- Front camber-adjustable and solid rear top mounts included where applicable
- Ride height
- Ride-height adjustable
- Lead time (catalogue)
- Made to order - approximately 4 weeks
Some specifications are not listed. Check any missing detail with us.
Check the fit.
Match the chassis, years and suspension details to your car. A registration lookup cannot identify every factory option.
Kit code: RAC-B1103SD. These notes come from the current product listing. Selected configurations can have different mounting parts.
Check this application with usBMW · M3 · E46 · 2000–2006
- Match the chassis, model, model year and drivetrain to your car. Contact us with the registration or VIN if any detail is uncertain.
- Make: BMW
- Model: M3
- Chassis: E46
- Years: 2000–2006
- Drive: RWD
- Notes: —
Need anything else?
Controllers, mounts and cancellation modules depend on the kit and the car. We’ll check the part numbers and anything else needed before you order.
Ask us to match the parts
We’ll confirm the parts, price and availability after checking your application.
Instructions for your kit.
Use the instructions supplied with RAC-B1103SD for assembly, torque values and adjustment limits.
We don’t have a linked installation PDF for this kit yet. Send us the part number and serial or lot marking to request a copy.
Request the correct instructionsYour invoice and supplied instructions record the kit you ordered. Links below show current resources, checked 2026-10-25.
AST support
Installation and setupGeneral manufacturer guidanceWarranty processManufacturer registration and conditionsAuthorised service centresManufacturer service routeGeneral guidance does not replace the instructions for your exact kit. Contact us before returning a part; warranty cover depends on the product, purchase and applicable terms.
Ask about warranty or servicingKnow what’s
under your car.
AST 5300 3-Way Motorsport suspension kit RAC-B1103SD for BMW M3 E46. Independent rebound plus high- and low-speed compression adjustable; front and rear coilover with external reservoirs. Made to order; supplier lead time is approximately four weeks. Representative family image shown—confirm exact fitment before ordering.
Product information
RAC-B1103SD is a vehicle-specific AST 5300 3-Way Motorsport suspension kit for the applications listed below. A three-way adjustable monotube motorsport coilover kit with separate rebound plus high- and low-speed compression control, ride-height adjustment and external reservoirs. Springs and top mounts are included where applicable. Vehicle applications Match the chassis, model, model year and drivetrain to your car. Contact us with the registration or VIN if any detail is uncertain. Make Model Chassis Years Drive Notes BMW M3 E46 2000–2006 RWD — Setup and installation Spring rates and the supplied mounting parts are selected for the application. Have the kit installed and aligned by a suspension specialist, then check wheel, tyre and body clearance through the full steering and suspension travel. Follow the instructions supplied with the kit. Ordering and lead time This kit is made to order. The supplier currently advises an approximate four-week lead time, but this can change. Contact us before booking installation if timing is critical. Product image The manufacturer image is a representative sample for this suspension family, not a photograph of this exact vehicle-specific part number. Component shapes, mounts, spring layout and supplied contents can differ by application. Brand and product-family information: AST Suspension . Application and pricing source: supplier catalogue .
- Brand
- AST
- Vehicle Manufacturer
- BMW
- Vehicle Model
- M3 E46
- Series
- AST 5300 3-Way Motorsport
- Damper Adjustment
- Independent rebound plus high- and low-speed compression adjustable
- Damper Type
- Monotube
- Top Mount Type
- Front camber-adjustable and solid rear top mounts included where applicable
- Ride Height Adjustment
- Ride-height adjustable
- Kit Configuration
- Front and rear coilover with external reservoirs
- Lead Time
- Made to order - approximately 4 weeks
- Fitting Position
- Front and Rear
Get to know your setup.
Buying, fitting and looking after coilovers. A few useful reads while you compare this AST kit.
Choosing coilovers for road and track
Compare the kit against your roads, tyres and setup plans before counting adjusters.
Read the guideWhat spring rate tells you
Compare force and movement, read the units and choose a spring with the damper in mind.
Read the guideDamping adjustment explained
What combined, two-way and three-way controls change.
Read the guideRide height and spring preload
Understand the two adjustments before choosing a lowering range.
Read the guideIdentify the parts on your coilovers
Use the exploded view to name the component, then send the kit code for an exact replacement check.
Read the guideAlignment after changing ride height
Set the intended height, check the geometry and keep a useful record of the result.
Read the guideKnow what you’re choosing.
The controls and parts explained, before you decide.
Compare AST rangesThis kit: AST 5300 3-Way Motorsport
Damping adjustment
Damping controls how quickly the suspension moves. A combined control changes compression and rebound together. Separate controls let you adjust them independently. More controls mean more setup choices; they do not guarantee a better ride.
Read the illustrated guideSpring rates
A spring-rate pair normally lists front, then rear. Keep the unit shown on the kit specification: kgf/mm (often written kg/mm) and N/mm are different units. The right rate depends on the car and setup. Ask us before choosing a custom rate or changing springs.
Read the illustrated guideTop mounts
Some kits reuse the original mounts; others include rubber or pillowball mounts. Camber adjustment depends on the mount and suspension layout. Check the exact configuration rather than assuming the representative photograph shows every included part.
Read the illustrated guideElectronic / adaptive dampers
If your car has factory electronic damping, tell us before ordering. The kit may retain that function, require an additional compatible cancellation solution, or have a specific exclusion. The correct answer depends on the vehicle and exact kit.
Ride height and installation
Lowering ranges and required parts vary by application. Read the kit notes and use a qualified installer. Changes to ride height affect alignment, so ask your installer to check the setup after installation.
Read the illustrated guideParts and servicing
Identify the component before asking for a replacement. Include the kit code, serial or batch marking and affected corner. The illustration names common external parts; the exact hardware and service route depend on this kit.
Read the illustrated guideFrom other drivers.
Read the car and driving context alongside each owner’s experience.
Read or write a reviewLoading reviews…
More from AST.
Explore the range
AST 5100 Street Coilovers for BMW M3 E46 - ACU-B1103SD
Coilover kit
£2,604.00 inc. VAT
AST 5100 Street Performance Coilovers for BMW M3 E46 - ACT-B1103SD
Coilover kit
£3,072.00 inc. VAT