Product Details

BC Racing ER Series Coilovers for the 2018+ Audi A5 (F5) put race-grade adjustability in reach of the serious track-day driver, with independent compression and rebound tuning at every corner. Every kit is extensively tested on the A5 F5 chassis and refined until it balances ride quality with performance — the reason A5 coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide.

ER Series kits run a linear twin-piston design in a mono-tube body, with compression and rebound on separate external adjusters. That lets you fine-tune chassis balance corner by corner — stiffer front for turn-in, softer rear for exit grip, whatever the session calls for. Where BC Racing separates itself is tuning philosophy: every off-the-shelf spring rate and damper setup is chosen to stay comfortable on daily roads while still delivering real performance at the track. If you want something different, Swift Springs, custom rates, and custom valving are all options at checkout — BC will match the valving of the dampers to whatever springs you pick, something most brands don't offer outside their flagship race lineup.

BC Racing has been manufacturing adjustable coilovers since 2004 and is one of the most popular coilover brands in the automotive tuning industry for a reason: competitive pricing, deep customization, proven reliability, and a fully rebuildable damper design that lasts years instead of seasons. These A5 coilovers arrive tuned for the F5 chassis and ready to bolt in — no break-in period, no guessing at setup. Every kit ships with a 2-year manufacturer warranty, lifetime access to BC service parts (pistons, seals, shafts — no unit replacement required when it's time for a rebuild), and in-house tech support from both BC Racing and the Springrates team.

Features

  • 30-level rebound adjustment (top of damper)
  • 30-level compression adjustment (external reservoir)
  • Mono-tube damper with linear twin-piston design
  • Ride height adjustable independent of spring preload
  • Upper mount hardware varies by chassis — camber plates, pillowball, or reused OEM mounts. See the Specifications table for what's included on your kit.
  • Swift Spring and custom spring rate upgrades available at checkout
  • Custom damper valving paired with custom spring rates on request
  • Fully rebuildable — replacement parts available from BC for the life of the shock
  • 2-year manufacturer warranty against defects
Specifications
Part Number S-29-ER
Part Name ER Series Coilovers
Vehicle 2018+ Audi A5 FWD/AWD (F5) 48.5mm Front Strut
Drivetrain FWD/AWD
Chassis Code F5
Damping Adjustment 2-Way (30 levels rebound / 30 levels compression)
Ride-Height Adjustable Yes
Spring Rate - Front 10 kg/mm
Spring Rate - Rear 8 kg/mm
Spring Size - Front 62-220-10K
Spring Size - Rear 62-190-8K
Swift Springs - Front 62-203-X
Swift Springs - Rear 62-178-X
Camber Plates - Front Not Applicable
Camber Plates - Rear Not Applicable
Suspension Design - Front True Coilover
Suspension Design - Rear True Coilover
Notes
  • Designed for 48.5mm front strut diameter — measure yours before ordering.
  • The ER Series is not available in Extreme-Low configuration.
Vehicle Fitment
  • 2018 Audi A5 FWD/AWD (F5) 48.5mm Front Strut
  • 2019 Audi A5 FWD/AWD (F5) 48.5mm Front Strut
  • 2020 Audi A5 FWD/AWD (F5) 48.5mm Front Strut
  • 2021 Audi A5 FWD/AWD (F5) 48.5mm Front Strut
  • 2022 Audi A5 FWD/AWD (F5) 48.5mm Front Strut
  • 2023 Audi A5 FWD/AWD (F5) 48.5mm Front Strut
  • 2024 Audi A5 FWD/AWD (F5) 48.5mm Front Strut
  • 2025 Audi A5 FWD/AWD (F5) 48.5mm Front Strut
  • 2026 Audi A5 FWD/AWD (F5) 48.5mm Front Strut

Reviews / Q&A

FAQs

Please read our FAQs page to find out more.

How much will BC Coilovers lower my car?

On average, Standard Drop allows about 1-2 inches of drop range below factory ride height. Extreme Low allows about 2-3 inches of drop.

Can BC Coilovers achieve factory ride height?

No. In most cases, factory ride height cannot be achieved.

What is a custom build vs off-the-shelf kit?

The stock level displayed on our website reflects the availability of standard “off-the-shelf” kits, unless noted otherwise in the product description. Selecting any custom options—such as Extreme Low, custom spring rates, Swift Spring upgrades, or top mount changes—will result in a custom-built kit. Please note: all series except the BR Series are built to order, with the exception of select popular DS Series kits that may be in stock. Also, some popular Extreme Low kits are in stock as well. To identify these, look for "Extreme Low" in the product title.

Will the struts be valved correctly?

Yes! The shocks and/or struts are always valved to match the spring rates you choose during a custom build. There is no additional cost.

Can they be rebuilt?

Yes, all BC Racing Coilovers can be rebuilt by purchasing individual replacement parts. For example, if a strut leaks, you can simply replace the shock cartridge.

Is there rush shipping available?

Rush shipping is not offered, but all in-stock kits ship very fast— most by the next day.

Customizing the coilovers in any way will delay the shipment by a few weeks on average.

Didn’t find your answer?

Don't hestitate to contact us