Petrol-blue Audi A4 B7 saloon with upgraded silver multi-spoke wheels beside a brick canal-side workshop

Audi A4 B7.
The coilover guide.

Shop the coilovers

A B7 on the right wheels can sit neatly without losing its everyday usefulness. Establish which factory chassis you have, then choose the exact body, drivetrain and axle-load application.

Which A4 B7 do you have?16 listed kits · 3 brandsReviewed 7 November 2026

The single-frame A4.

The tall single-frame grille makes a B7 easy to recognise. Choosing its suspension takes a closer look: saloon, Avant and Cabriolet references overlap, and the front-wheel-drive and quattro conditions differ. Keep the engine, build date and both permitted axle loads with the body code.

Before deciding how far to lower it, establish the starting height. Audi’s 2005 A4 technical programme describes a sport chassis 20 mm below the standard version. Confirm the actual equipment and any previous changes; an S-line badge alone is not enough to calculate the result.

The B7 arrived in 2004 with the tall grille and revised lights that distinguish it from the B6. Audi retained a four-link front suspension and developed the independent trapezoidal rear arrangement. The B8 followed in 2007, so a registration year can sit across generations. Use the car’s identity and the exact application dates when ordering.

Audi announced the updated A4 Cabriolet in September 2005. It brought the single-frame front to the open-top body, with revised suspension tuning. Shared kit listings can name both the earlier 8H7 and later 8HE Cabriolet; read the engine and drivetrain row rather than treating that combined label as universal coverage.

For a restrained B7 build, choose the wheel specification before the final height. A silver multi-spoke wheel keeps the shape readable; a wider wheel or lower offset needs its inner clearance and arch space checked. Existing spacers belong in that calculation too.

An Avant used for luggage needs clearance with that load aboard. A road saloon needs to get over the surfaces you actually drive on. If the same car will do track days, include the tyre, brake and alignment plan in the conversation before settling on spring and damper settings.

Start with your A4 B7.

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

Blue Audi A4 B7 saloon with upgraded five-spoke wheels by a canal

Saloon: front-wheel drive

BC’s application table assigns S-02 to the FWD saloon. Its product title also mentions AWD, which conflicts with that table. SPAX separates FWD applications into maximum front/rear loads of 1150/1130 kg or 1230/1150 kg. Match the engine and dates as well as both limits.

View FWD saloon references
Silver Audi A4 B7 saloon with upgraded dark multi-spoke wheels outside a brick garage

Saloon: quattro

BC lists S-45 for the AWD saloon, subject to the year check below. Eibach PSS65-15-006-05-22 names B7 8EC quattro saloon rows from November 2004 to June 2008, with maximum loads of 1080 kg front and 1165 kg rear. SPAX has two separate quattro load groups.

View quattro saloon references
Green Audi A4 B7 Avant with upgraded bright mesh wheels on a tree-lined lane

Avant: front-wheel drive

BC assigns S-45 to the FWD Avant as well as the AWD saloon. Eibach references ending -03-22 and -04-22 name B7 8ED FWD Avant rows from November 2004 to June 2008. Their front limits are 1080 and 1230 kg respectively, both with 1150 kg rear. Check the exact engine and equipment.

View FWD Avant references
Graphite Audi A4 B7 Avant with upgraded silver multi-spoke wheels beside a stone viaduct

Avant: quattro

BC lists S-44 for the AWD Avant. Eibach references ending -07-22 and -08-22 cover stated B7 8ED quattro Avant rows, with front limits of 1080 or 1250 kg and 1165 kg rear. SPAX’s quattro alternatives use different limits and their own body, engine and date conditions.

View quattro Avant references
Silver updated Audi A4 B7 Cabriolet with its roof down and upgraded wheels by the coast

Cabriolet: check the complete row

The shared Eibach 8H7/8HE and SPAX 8H/QB6 listings cover particular Cabriolet engines, dates and drivetrains. Establish which updated body and running gear you have, then compare the complete application and axle loads. A saloon or Avant label by itself does not cover the open-top car.

View Cabriolet references
Red Audi B7 RS4-style Avant with upgraded mesh wheels outside a workshop

S4, RS4 and altered cars

Check S4, RS4, engine conversions and changed running gear individually. A shared Eibach Cabriolet row names S4 quattro, but that does not approve an S4 saloon, Avant or an RS4. Describe the current suspension, including any DRC system, before choosing a replacement package.

Ask about your build

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 · Quattro saloon BC Racing BR RN / BCR-S-45

Keep enough movement for the roads you use.

Read the buying advice

BC S-45 BR RN is the listed AWD saloon example. Its manufacturer table spans 2001 to 2008, while the product lists 2001 to 2006: confirm a later B7’s application before ordering. Check the retained front mounting parts and agree a height that works with your wheels and normal load.

  • Confirm body, drivetrain and the conflicting dates
  • Inspect the retained front mounting parts
  • Allow clearance with passengers and luggage
View current configurations
Selected configurationSee optionsinc. VAT · Quattro SPAX RSX Double Adjustable / RSX3-1644

Make each adjustment part of a measured setup.

Read the buying advice

SPAX RSX3-1644 is the double-adjustable quattro example for its stated body, engine and date rows, up to 1120 kg front and 1170 kg rear. Separate bump and rebound controls give you changes to record and evaluate. Confirm the application and discuss the tyres, brakes and alignment with your setup specialist.

  • Match the exact row and both axle-load limits
  • Record bump and rebound changes
  • Agree tyres, brakes and alignment for the intended use
View current configurations

Work from the car’s specification and event rules.

Read the buying advice

Describe the actual body, drivetrain, weight and tyre choice to the preparation team. Agree the spring and damper specification, mounting hardware and available movement together. A price or number of adjusters cannot establish whether a package meets the needs of that build.

  • Provide the build specification and event requirements
  • Agree springs, dampers and mounting hardware together
  • Arrange measured setup and ongoing support
Discuss a B7 circuit setup

A separate seat for the rear spring.

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 A4 B7 saloon, the rear spring and damper are mounted separately.

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

Audi’s A4 ’05 technical programme shows a developed trapezoidal independent rear axle. The coil spring sits inboard in its own seat beside the damper. It is separate from the damper, rather than wrapped around it.

Keep that factory layout distinct from the contents of a replacement kit. Confirm the rear spring seat, damper and adjustment method supplied for the exact application. A generic description of a threaded strut does not establish a rear conversion or compatibility with changed S4 or RS4 hardware.

Read about spring seats and ride height
Mechanic using a handheld torch to inspect the front wheel arch of a green Audi A4 B7 Avant on upgraded mesh wheels

Allow room around the wheel.

Measure the wheels already on the car: width, offset, tyre size and spacer thickness. Ask the fitter to check the inner suspension gap as well as the outer arch at the intended height, through the steering and suspension movement the car needs. Include the load an Avant normally carries.

Have the four-link front arms, joints and bushes assessed before fitting. Check mounts and fixings at the same time, and agree which original parts the chosen kit retains. The fitting plan should include the correct alignment procedure and the manufacturer’s follow-up checks.

Starting chassis and height

Establish whether the car has standard, sport or other factory suspension, and what has changed since. Audi’s 2005 programme puts the sport chassis 20 mm below standard. Use the exact kit’s stated baseline and limits when discussing further lowering.

Wheel width and offset

Record the complete wheel and tyre combination. Some Eibach notes allow for spacers even with original wheels; have the exact clearance checked before specifying a spacer. Additional original parts may also be required.

Front arms and mounting parts

Inspect the four-link front suspension for wear. The listed BC BR RN builds do not supply front top mounts. Establish what is retained and what needs replacement before booking the car in.

Alignment after fitting

Agree the final usable height and complete the required clearance checks before alignment. Ask the specialist to assess the available adjustment on the actual suspension, particularly where arms or running gear have already changed.

The current A4 B7 range.

Compare the controls and hardware included in each range.

BC Racing

S-02 is the manufacturer’s FWD saloon row, S-44 is Avant AWD, and S-45 covers saloon AWD or Avant FWD. S-02’s native title also mentions AWD and needs clarification. All three product date ranges stop at 2006 while the manufacturer table runs to 2008; confirm later B7 cars before ordering.

View BC Racing A4 B7 kits

SPAX

RSX and double-adjustable RSX3 references divide FWD and quattro by axle-load group, with further body, engine and date conditions. The quattro groups have front limits of 1120 or 1230 kg, both with 1170 kg rear. Compare both limits against the car and use the complete application row.

View SPAX A4 B7 kits

Eibach

The five Pro-Street-S references distinguish FWD Avant/Cabriolet, quattro saloon and quattro Avant/Cabriolet rows. Levelling control is excluded by the notes. Check the load limits, any required spacers or original parts, and the current component list and certificate.

View Eibach A4 B7 kits

Find your A4 B7 coilovers.

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

16 listings

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

6 of 16 shown
All A4 B7 kit links and part numbers

Before you order.

  1. Identify your car

    Identify the B7 body code, engine, drivetrain and build date. Distinguish the updated Cabriolet and any S4, RS4 or converted running gear.

  2. Match the kit

    Match the complete application and both permitted axle loads. Clarify the BC year-range and S-02 drivetrain discrepancies before ordering.

  3. Check what’s included

    Establish the factory chassis and any previous lowering. Inspect the arms and mounts, then confirm the hardware the replacement kit supplies or retains.

  4. Check your modifications

    Record wheel width, offset, tyres and spacers. Have clearance checked at the intended height through the required movement with normal load aboard.

  5. Plan fitting

    Check current timing before booking fitting. Agree installation, final height, alignment and the manufacturer’s specified 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 A4 B7 coilovers.

Check the details before choosing your kit.

Which A4 is the B7?

The A4 generation introduced in 2004 with the tall single-frame grille. Its saloon and Avant applications use 8EC and 8ED identifiers; the updated Cabriolet appears in shared 8H7/8HE listings. B6 and B7 kit ranges overlap, so identify the body, engine, drivetrain and application dates rather than using registration year alone.

Does the B7 have a separate rear spring and damper?

Yes. Audi’s A4 ’05 technical programme shows the rear spring in its own inboard seat beside the damper on the independent trapezoidal rear suspension. Check the exact replacement kit’s supplied parts and adjustment instructions. That factory spring position does not approve a different body or drivetrain application.

Does factory sport suspension change how much lower the car will sit?

It changes the starting point. Audi’s 2005 technical programme describes its sport chassis as 20 mm below standard. Confirm the actual factory equipment and any later changes, then check the baseline used for the chosen kit’s lowering figures. Do not assume the stated reduction is an additional amount below every S-line car.

Why do later B7 cars need a BC date check?

The current BC manufacturer table lists these A4 applications through 2008, while the published products give 2001 to 2006. Confirm the exact later car and supplied reference before ordering. S-02 also has conflicting AWD wording in its title; the manufacturer table assigns that reference to the FWD saloon.

How do I choose between the axle-load groups?

Read both permitted axle loads from the car’s identification information and compare them with the exact reference and engine/body/date row. SPAX and Eibach use their own limits. Matching the front limit alone, or choosing a kit with similar lowering figures, is insufficient.

Can a saloon or Avant kit fit my Cabriolet?

Only when the exact application explicitly names that Cabriolet, engine and drivetrain. Some Eibach and SPAX references cover multiple bodies under specific conditions. Keep the shared earlier/later Cabriolet dates and both axle-load limits with the reference you are checking.

Are the listed A4 kits suitable for an S4 or RS4?

Check the complete car and current hardware first. A shared Eibach Cabriolet row names S4 quattro, but it does not establish S4 saloon, Avant or RS4 fitment. Any change involving DRC needs a confirmed replacement specification; a broad A4 B7 label is not approval.

Will a lowered B7 need wheel spacers?

That depends on the exact wheels, tyres, suspension and body clearance. Eibach’s notes say spacers may be required, including with original wheels, and additional original parts may be needed. Have the complete combination checked and confirm the current component list and certificate before specifying parts.

Let’s talk suspension.

Find your B7, then add its body, engine, drivetrain and both permitted axle loads. Include the factory chassis, wheel specification and any previous changes so we can check the exact kit.

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