Dark-blue modified Audi A6 C7 saloon on silver split-spoke wheels beside a redbrick canal-side engine house

Audi A6 C7 / 4G.
The coilover guide.

Shop the coilovers

Choose a C7 setup around the body, the wheels and the suspension already fitted. Saloon and Avant references differ, and the Drive Select menu does not tell you which dampers are underneath.

Which A6 C7 / 4G do you have?6 listed kits · 2 brandsReviewed 9 November 2026

The C7 saloon and Avant

A tidy C7 stance starts with the wheel and tyre combination. Decide how much room the car needs on the roads you use, with the passengers and luggage it normally carries, before settling on a height.

BC Racing separates its saloon and Avant references; Eibach adds two axle-load versions for each body. Keep those distinctions when comparing the hardware.

The C7 saloon arrived in 2011, followed by the Avant announcement that May. The long bonnet, defined shoulder and angular lights gave both bodies a cleaner outline. On the estate, the low roof runs back into shallow rear pillars.

Audi combined steel and aluminium in the body and used electromechanical steering. The chassis has a five-link front axle and an independent trapezoidal-link rear axle. Steel springs and conventional dampers were the basic arrangement; adaptive air suspension was optional.

The 2014 update revised the grille, lamps, bumpers and infotainment. Facelift appearance is useful for identifying the car, but an exact suspension order still needs its build date, body and equipment. A headlamp or bumper change on a modified car is not a reliable parts identifier.

Drive Select can change engine and steering behaviour on a conventionally sprung C7. Its presence does not establish that the dampers are electronically controlled. Check the suspension codes and the actual components, particularly if a previous owner has changed them.

Start with your A6 C7 / 4G.

Match the model year, engine and body style before comparing brands.

Modified dark-blue Audi A6 C7 saloon on silver wheels outside a redbrick engine house

Saloon applications

BC S-51 names the 2012–18 C7 A6 Sedan FWD/AWD. Eibach -018-01-22 and -018-02-22 name saloon type 4G2/4GC, with different front load limits. Confirm the exact engine, build date and original equipment within that body row.

See the saloon kits
Graphite Audi A6 C7 Avant with upgraded silver wheels beside a stone country pub

Avant applications

The current BC manufacturer row identifies S-14 as A6 Avant C7 FWD/AWD, 2012–18, although the product title says only A6. Eibach -018-03-22 and -018-04-22 are the Avant pair. Do not use the broad A6 name to swap a saloon and estate reference.

See the Avant kits
White modified Audi A6 C7 Avant on silver wheels beside marina berths

Body and axle loads together

Eibach saloon references have 1170 or 1305 kg front limits and a 1250 kg rear limit. The Avant references have 1170 or 1320 kg front limits and a 1425 kg rear limit. Match the permitted loads and component markings to the current certificate, even when the prices are identical.

Compare the Eibach references
Silver Audi A6 C7 Avant standing normally outside an independent workshop

Air suspension and controlled damping

Identify steel springs, air springs, levelling and any controlled dampers separately. The Eibach rows specify no levelling control and warn that original electronic damping will not remain available. A cancellation provision is not a complete air-conversion plan or a promise that a module is included.

Check my original equipment
Burgundy modified Audi A6 C7 saloon with silver wheel upgrades on a leafy town square

Early cars and changed appearances

The car’s introduction and a kit’s application dates are different things. BC’s current rows start in 2012; the Eibach body rows carry their own date bands. Use the build details and complete reference, especially on an early C7 or a car with later bodywork fitted.

Check the build date and parts
Black Audi A6 C7 saloon project on silver wheels outside circuit garages

S6, RS6 and developed projects

An ordinary A6 listing does not establish an S6 or RS6 application. Include the exact model, original suspension, brakes and any previous conversion. For a circuit build, add its weight, tyres and mounting changes so the specification can be checked around the complete car.

Discuss my C7 project

What do you want
from the car?

Road miles, circuit weekends or a car built around the lap. Start with how you drive.

Selected configurationSee optionsinc. VAT · Matching 2012–18 C7 saloon / BC Racing BR-RN S-51

Set the height around the roads and wheels you actually use.

Read the buying advice

BC Racing BR-RN S-51 is the current 2012–18 C7 A6 Sedan FWD/AWD reference. The listed configuration records no front top mount, rubber rear mounting and nominal 10 kg/mm front and 5 kg/mm rear springs. Confirm the required mounting parts and supplied rear seats before fitting. Choose the usable height with clearance and suspension movement still available.

  • Confirm the exact saloon row
  • Check front mounting parts
  • Keep clearance for normal use
View current configurations

Bring the tyre and event plans before choosing the specification.

Read the buying advice

Describe how the car will split its time between road and circuit. Include tyre type and size, brake changes, normal load and the events you intend to drive. Agree the spring, damping and mounting requirements with the people preparing the car. Choose by the specification needed for those events; price alone cannot establish track suitability.

  • Describe tyres and intended events
  • Check travel and mounting requirements
  • Plan measured setup and follow-up
Discuss road and track-day use

Specify the suspension alongside the rest of the build.

Read the buying advice

Provide the car’s measured weight, tyres, brake package, mounting changes and any aero. Include the original suspension and details of any air or electronic-damper conversion. Confirm the required damper and spring specification, clearance and inspection work around that car before ordering. No competition specification is inferred from the A6 badge.

  • Measure the completed car
  • Match springs, dampers and mounts
  • Agree setup and inspection work
Discuss a C7 circuit build

A separate coil beside the rear damper.

Separate rear spring and damperThe coil spring rests between its own seats, beside a separate shock absorber. This fixed component diagram does not show vehicle dimensions, mounting hardware or suspension movement.SpringDamper

On a standard Audi A6 C7 steel-spring rear suspension, the rear spring and damper are mounted separately.

Component layout only. Mounts, dimensions and adjusters vary by kit.

The steel-spring C7 uses an independent trapezoidal-link rear axle. The coil sits on its own support beside the damper. Check the exact kit’s parts list and fitting instructions for its supplied rear arrangement.

Check how the exact replacement kit sets rear height and which spring seats, adjusters and mounts it supplies. Eibach describes a threaded front strut and a rear height-adjustable unit. Do not assume one adjustment method applies at every corner. Factory air suspension needs its own replacement plan.

Understand height and spring preload
Dark-blue modified Audi A6 C7 saloon on silver split-spoke wheels standing normally on a level workshop floor

Check the parts before setting the height.

Ask the workshop to identify the spring and damper equipment, inspect the front links and rear arms, and record worn bushes or mounting parts. Establish what the chosen kit supplies and what must be retained or renewed.

Agree the finished height around the actual wheels, tyres and normal load. The order should include the correct body and axle-load reference, an equipment plan and enough time for fitting, measured alignment and the required follow-up work.

Identify the suspension fitted

Read the original suspension codes and inspect the parts now fitted. A Drive Select screen alone does not confirm adaptive dampers. Tell the fitter about previous replacements, warning-cancellation hardware and any air conversion.

Check the complete wheel and tyre package

Record wheel width, offset, tyre size and spacer thickness. Check clearance to suspension parts and the arch through steering and suspension movement, including the car’s usual passenger and luggage load.

Use the correct starting height

The original C7 range included standard, sport, S line sport and raised steel-spring settings, as well as air suspension. Confirm the car’s baseline and the exact kit’s measurement basis before interpreting a lowering figure.

Finish the job with measured checks

Inspect joints, bushes, spring seats and mounts before fitting. Set the height to the manufacturer’s instructions, then check clearance and alignment. Have the fitter confirm any affected lighting, assistance or suspension-system checks and the follow-up inspection.

The current A6 C7 / 4G range.

Compare the controls and hardware included in each range.

BC Racing

S-14 is the manufacturer’s C7 Avant reference; S-51 names the saloon. Both current RN configurations record no front top mount, rubber rear mounting and nominal 10/5 kg/mm springs. Keep the exact body and 2012–18 application with the comparison, then confirm the mounting parts and rear arrangement supplied.

View BC Racing A6 C7 / 4G kits

Eibach

Four Pro-Street S references separate saloon and Avant, with two front axle-load limits for each. Their listed range is 40–65 mm at both ends, without levelling control. Original electronic damping, additional OE parts, component markings and current certificate conditions need checking for the exact car. The matching price does not make all four kits interchangeable.

View Eibach A6 C7 / 4G kits

Find your A6 C7 / 4G coilovers.

Prices include UK VAT. Choose an application and brand, then open a kit for its current options and availability.

6 listings

Match the engine, body style and axle-load limits on the product page before ordering.

All A6 C7 / 4G kit links and part numbers

Before you order.

  1. Identify your car

    Identify the C7 body, engine, build date and driven wheels. Include the exact S6 or RS6 details where relevant.

  2. Match the kit

    Match the complete reference and permitted front and rear axle loads. Keep saloon and Avant rows separate.

  3. Check what’s included

    Confirm supplied mounts, spring seats and adjusters. Resolve air, levelling, controlled damping and previous conversions.

  4. Check your modifications

    Record the wheels, tyres and spacers. Check steering and suspension clearance with the normal load.

  5. Plan fitting

    Confirm supply timing before booking fitting. Agree the height, measured alignment, equipment checks and follow-up.

See what the adjustments do.

Choosing coilovers for road and track

Compare the kit against your roads, tyres and setup plans before counting adjusters.

Ride height and spring preload

Understand the two adjustments before choosing a lowering range.

What spring rate tells you

Compare force and movement, read the units and choose a spring with the damper in mind.

Spring rates and top mounts

Read the front/rear figures and check which mounts come with your kit.

Questions about Audi A6 C7 / 4G coilovers.

Check the details before choosing your kit.

Which A6 does this C7 guide cover?

It covers the C7/type-4G A6 saloon and Avant family, with the current body-specific listings shown here. Earlier C6 and later C8 kits are separate applications. Match the exact build date, body, engine and equipment; an A7 sharing the platform is not an A6 fitment approval.

Are the C7 rear spring and damper separate?

Yes on the steel-spring rear suspension. Audi’s trapezoidal-link axle carries a separate coil beside the damper. Check the spring seats, adjusters and mounting parts in the exact kit. An originally air-sprung car needs its own replacement plan.

Is BC S-14 for the saloon or the Avant?

The current BC manufacturer row identifies S-14 as the C7 A6 Avant FWD/AWD, 2012–18. S-51 names the C7 A6 Sedan FWD/AWD over the same years. The broad A6 wording in the S-14 product title does not make it a saloon reference.

What mounting specification is listed for the BC kits?

The current RN configurations record no front top mount and rubber rear mounting, with nominal 10 kg/mm front and 5 kg/mm rear springs. Confirm the supplied rear components and which original mounting parts must be retained or replaced.

Why are four Eibach references listed at the same price?

They separate body and axle loads. Saloon -01-22 is limited to 1170 kg front and 1250 kg rear; -02-22 to 1305/1250 kg. Avant -03-22 is 1170/1425 kg; -04-22 is 1320/1425 kg. Match the full part number, permitted loads, component markings and current certificate conditions.

Does Drive Select mean my C7 has adaptive dampers?

No. Audi’s original C7 training material describes engine and steering control as standard Drive Select functions, with other functions dependent on equipment. Check the suspension codes and actual spring and damper hardware instead of relying on the menu.

Will a Pro-Street S kit retain original electronic damping?

The listed Eibach fitting conditions say original electronic damper control will no longer be available and a fault may be displayed. Confirm the appropriate hardware and electrical plan with the fitter. A recommendation for a cancellation device does not establish that one is included, or that an air-suspension conversion is covered.

Can I use the quoted lowering figure from an S line starting height?

First confirm the original suspension specification and the kit’s stated measurement basis. Audi offered different factory ride-height settings. Existing lowering reduces the additional drop where the kit’s conditions say so. Choose a usable setting after checking wheels, tyres, movement and normal load.

Let’s talk suspension.

Find your C7, then include its body, engine, driven wheels, permitted axle loads and original suspension. Add any conversion and wheel changes so the exact application can be checked.

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