Audi A4 B8.
The coilover guide.
Shop the coiloversA tidy set of wheels and a usable ride height suit the B8 well. Start with the body and factory suspension equipment, then compare the references for your engine, drivetrain and axle loads.
The longer, lower-looking A4.
An Avant carrying luggage asks something different of its suspension from a saloon used for track days. Both need enough room around the tyre and enough movement for the surfaces they meet. Decide on the wheels and normal load before agreeing the height.
The B8 range also includes S4, RS4 and Chinese-market A4L applications. Their names can appear beside ordinary A4s in a catalogue, but the kit conditions differ. Keep the body code, engine, drivetrain and both permitted axle loads together when checking a reference.
Audi introduced the B8 A4 in 2007. Its longer-looking bonnet, broad grille and swept headlamps give it a different shape from the B7. The B9 followed in 2015, which makes the changeover years a poor substitute for a chassis check.
Audi announced a revised A4 and S4 range in October 2011, changing the lights, grille and bonnet. The facelift is often called B8.5. A different lamp shape helps identify the car; the exact kit still needs its body, engine and production-date row checked.
On an early saloon, a silver five-arm or multi-spoke wheel keeps the original shape clean. A modest drop can close the arch gap without making the lowest setting the target. Check a chosen wheel’s width and offset before adding spacers or setting the final height.
An Avant needs space with its usual passengers and luggage aboard. If the same car will do circuit days, describe the tyres, brakes and expected use to the setup specialist. That gives them something more useful to work from than a request to make the car as low as possible.
Model history: Audi official A4 thirty-year historyAudi announces the revised A4 range, 27 October2011.
Start with your A4 B8.
Match the model year, engine and body style before comparing brands.
A4 saloon: 8K2
Eibach references ending -01-22 and -02-22 cover stated 8K2 engine rows from November 2007 to December 2015. The light front group is 1080 kg; the other is 1180 kg for FWD or 1225 kg for quattro. Rear limits also differ. Match the full row and both loads. BC S-07 and AST A2106S need body confirmation before ordering.
View saloon references
A4 Avant: 8K5
BC S-48 is the manufacturer’s A4 Avant FWD/AWD row. Eibach -03-22 and -04-22 cover stated 8K5 applications from April 2008 to December 2015: 1080 kg front in the lighter group, or 1180 kg FWD and 1225 kg quattro in the other. Rear limits are 1215 kg FWD and 1250 kg quattro.
View Avant references
S4: confirm body and equipment
The heavier Eibach saloon -02-22 and Avant -04-22 rows explicitly include S4 quattro, with 1225 kg front limits and different rear limits for each body. AST also names S4 B8 AWD, but its table omits the body. Confirm electronic damping and the complete replacement specification for the actual car.
View named S4 references
RS4 Avant: the S-49 application
BC lists S-49 BR RN for the 2012 to 2015 RS4 Avant AWD. Keep that separate from ordinary A4 and S4 references. Establish whether the car retains DRC or has already been converted, then confirm the replacement hardware and any system changes before ordering.
View the RS4 Avant reference
Chinese-market A4L: 35 TFSI
TEIN VSGB4-C1AA2 is for the Chinese-market A4L B8, 2009 to 2014, 2000 cc FWD 35 TFSI. It retains the original upper mounts. Its A4L listing does not establish fitment for a standard-wheelbase UK A4, quattro or another engine.
View the exact A4L reference
Allroad and altered running gear
An allroad, an engine conversion or a car with changed arms, mounts or damping equipment needs an individual check. Include the current hardware and wheel specification. Shared A4/A5 catalogue wording alone cannot approve a different model or a conversion.
Ask about your buildWhat do you want
from the car?
Road miles, circuit weekends or a car built around the lap. Start with how you drive.
Choose the height around the roads and load you use.
Read the buying advice
Eibach PSS65-15-011-01-22 is the lighter front-axle saloon example. Its A4 rows allow up to 1080 kg front, with 1245 kg rear for FWD or 1225 kg rear for quattro. The stated A4 adjustment range is 20 to 40 mm front and 10 to 40 mm rear. Confirm engine, dates and factory equipment before planning the final height.
- Match the engine row and both axle-load limits
- Check levelling and electronic damping conditions
- Leave clearance with passengers and luggage
Use the damper control with a recorded setup plan.
Read the buying advice
AST ACU-A2106S names A4 B8 FWD, A4 quattro B8 and S4 B8 AWD in its application table. The 5100 Street package has rebound adjustment and uses original upper mounts, with a separate rear spring arrangement. The table does not specify body, so confirm that and the damping equipment before ordering. Agree tyres, brake preparation and alignment for the intended use.
- Confirm body and current suspension equipment
- Inspect the original mounting parts to be retained
- Record settings and assess one change at a time
Start with the build specification and event requirements.
Read the buying advice
Give the preparation team the body, drivetrain, weight and tyre specification, including any DRC or electronic damping conversion. Agree spring and damper requirements with mounting hardware and available movement. The road-car catalogue cannot settle those choices for a stripped or substantially altered car.
- Provide the actual build and event requirements
- Agree springs, dampers and mounting hardware together
- Arrange measured setup and ongoing inspection
The rear spring has its own seat.
On a standard Audi A4 B8, the rear spring and damper are mounted separately.
Component layout only. Mounts, dimensions and adjusters vary by kit.The A4 ’08 technical programme shows the rear coil spring in its own inboard seat beside the damper. The spring is separate from the damper on this factory arrangement.
Confirm the rear spring seat, damper and height-adjustment parts supplied with the chosen reference. Electronic damping or an RS4’s DRC needs its own replacement plan. This component view does not establish what a conversion requires.
Read about spring seats and ride height
Check the space your wheels need.
Record wheel width, offset, tyre size and any spacer thickness. Have the fitter check the inner suspension gap and outer arch at the intended height through steering and suspension movement, with the car’s normal load aboard. A wheel that clears while parked may need more room in use.
Inspect the suspension arms, joints, bushes and upper mounting parts before fitting. Agree which original parts the kit retains, how any damping-control system will be handled and when the final alignment will be carried out.
Factory suspension and starting height
Audi’s A4 ’08 programme distinguishes standard 1BA, sport 1BE at 20 mm below standard, rough-road 1BR at 13 mm above it and electronically controlled 1BL at the sport height. Confirm the actual equipment and previous changes before interpreting a kit’s lowering range.
Wheel width, offset and load
Check the complete wheel and tyre combination with the load you normally carry. Eibach notes that spacers may be required even with original wheels. Specify them only after the inner and outer clearances have been assessed.
Original mounts and damping controls
The listed BC BR RN builds retain front mounting parts; AST uses original upper mounts, and the exact TEIN A4L reference specifies STD mounts front and rear. Electronic damping may need to be disabled or otherwise addressed under the chosen kit’s instructions.
Alignment at the usable height
Set the agreed height and complete clearance checks before alignment. Ask the specialist to assess the available adjustment on the actual car. Include any changed arms and the manufacturer’s fitting and follow-up requirements.
The current A4 B8 range.
Compare the controls and hardware included in each range.
S-07 is the shared A4/A5 FWD/AWD row, S-48 is specifically A4 Avant FWD/AWD, and S-49 is RS4 Avant AWD. The native S-48 title also says A5 Avant; BC’s table says A4 Avant. Confirm the exact body and supplied hardware, including any DRC replacement plan.
View BC Racing A4 B8 kits
The official application workbook assigns ACU-A2106S to A4 B8 FWD, A4 quattro B8 and S4 B8 AWD from 2007 to 2016. Body is unspecified in that table. Confirm it before ordering the 5100 Street package and check the original mounts and damping equipment.
View AST A4 B8 kits
The listed FLEX Z reference is the Chinese-market A4L B8 35 TFSI FWD application. TEIN gives a recommended height range of 20 to 40 mm below its reference height at both ends, with original upper mounts retained. Front adjustment fields are blank in the exact maker data; do not assume every FLEX Z feature applies at every corner.
View TEIN A4 B8 kits
Four Pro-Street-S references split 8K2 saloon and 8K5 Avant by front-load group, with different FWD/quattro rear limits. Check engine, dates and both loads. The notes exclude levelling control and address loss of electronic damper control, possible spacers, additional original parts and the current component certificate.
View Eibach A4 B8 kitsFind your A4 B8 coilovers.
Prices include UK VAT. Choose an application and brand, then open a kit for its current options and availability.
9 listings
Match the engine, body style and axle-load limits on the product page before ordering.
![BC Racing Coilovers - Audi A4/A5 (2Wd/AWD) (07-16) [B8]](/images/09cf8cd191b679-480.webp)
BC Racing · BCR-S-07
BC Racing Coilovers - Audi A4/A5 (2Wd/AWD) (07-16) [B8]
Check the exact application
Eibach · PSS65-15-011-04-22
Eibach Pro-Street S Coilover Kit for Audi applications - PSS65-15-011-04-22
A4 Avant: 8K5 / S4: confirm body and equipment
AST · ACU-A2106S
AST 5100 Street Coilovers for Audi B8 Applications - ACU-A2106S
Check the exact application
TEIN · VSGB4-C1AA2
TEIN FLEX Z Coilovers for Audi A4L (B8) B8 (Chinese-market imports) - VSGB4-C1AA2
Chinese-market A4L: 35 TFSI
BC Racing · BCR-S-49
BC Racing Coilovers - Audi RS4 Avant (AWD) (12-15) [B8]
RS4 Avant: the S-49 application
Eibach · PSS65-15-011-03-22
Eibach Pro-Street S Coilover Kit for Audi A4 AVANT (8K5, B8) - PSS65-15-011-03-22
A4 Avant: 8K5
All A4 B8 kit links and part numbers
- BC Racing · BCR-S-07: BC Racing Coilovers - Audi A4/A5 (2Wd/AWD) (07-16) [B8]
- BC Racing · BCR-S-48: BC Racing Coilovers - Audi A4/A5 Avant (FWD/AWD) (07-16) [B8]
- BC Racing · BCR-S-49: BC Racing Coilovers - Audi RS4 Avant (AWD) (12-15) [B8]
- AST · ACU-A2106S: AST 5100 Street Coilovers for Audi B8 Applications - ACU-A2106S
- TEIN · VSGB4-C1AA2: TEIN FLEX Z Coilovers for Audi A4L (B8) B8 (Chinese-market imports) - VSGB4-C1AA2
- Eibach · PSS65-15-011-01-22: Eibach Pro-Street S Coilover Kit for Audi applications - PSS65-15-011-01-22
- Eibach · PSS65-15-011-02-22: Eibach Pro-Street S Coilover Kit for Audi applications - PSS65-15-011-02-22
- Eibach · PSS65-15-011-03-22: Eibach Pro-Street S Coilover Kit for Audi A4 AVANT (8K5, B8) - PSS65-15-011-03-22
- Eibach · PSS65-15-011-04-22: Eibach Pro-Street S Coilover Kit for Audi applications - PSS65-15-011-04-22
Before you order.
Identify your car
Identify the B8 body, engine, build date and drivetrain. Keep Chinese-market A4L, S4, RS4 and allroad identities separate.
Match the kit
Match the complete application and both permitted axle loads. Confirm unspecified body information before choosing a shared reference.
Check what’s included
Establish the factory damping equipment and current hardware. Confirm supplied or reused mounts, spring seats and any required electronic-control work.
Check your modifications
Record wheel width, offset, tyres and spacers. Check clearance at the intended height through the required movement with normal load aboard.
Plan fitting
Check current timing before booking fitting. Agree the installation, usable height, alignment and manufacturer-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 B8 coilovers.
Check the details before choosing your kit.
Are B8 and B8.5 separate A4 generations?
B8.5 is a common name for the facelifted B8, announced in the updated A4 and S4 range in October 2011. Audi introduced the B8 in 2007 and its B9 successor in 2015. Use the exact body, engine, drivetrain and kit dates when checking a changeover-year car.
Does the A4 B8 have a separate rear spring and damper?
Yes. The A4 ’08 technical programme shows the rear coil spring in its own inboard seat beside the damper. Confirm the spring seats, dampers and adjustment parts supplied with the exact replacement kit. That factory layout alone does not establish an RS4 DRC conversion specification.
Why are there four Eibach B8 references?
They separate 8K2 saloon and 8K5 Avant applications into front-load groups. FWD and quattro rows also have different rear limits. For example, saloon -01-22 has a 1080 kg front limit with 1245 kg rear for FWD or 1225 kg rear for quattro. Check the complete engine and date row as well as both loads.
Can I keep the factory electronic damper control?
Confirm the replacement plan for the exact car and kit. Eibach’s note 101 says electronic damper control ceases to operate and addresses fault handling and possible Pro-Tronic support where available. Its notes also exclude levelling control. An S4 badge, drive-select button or general B8 listing does not establish compatibility.
Does the listed TEIN FLEX Z kit fit a UK A4 B8?
VSGB4-C1AA2 is specifically listed for the Chinese-market A4L B8, 2009 to 2014, 2000 cc FWD 35 TFSI. It retains the original upper mounts. Check a standard-wheelbase UK A4, quattro or a different engine individually; the A4L row does not approve those applications.
Does AST A2106S cover both saloon and Avant?
The official workbook names A4 B8 FWD, A4 quattro B8 and S4 B8 AWD from 2007 to 2016 but leaves the body unspecified. Confirm your exact body and factory suspension equipment before ordering. The listed package uses original upper mounts and a separate rear spring arrangement.
Can I use an ordinary A4 kit on an RS4 Avant?
Use the explicit RS4 application and confirm the current hardware. BC lists S-49 for the 2012 to 2015 RS4 Avant AWD. Establish whether DRC is retained or a previous conversion has been made, then agree the complete replacement specification. Other A4 and S4 rows do not approve that change.
Is the quoted drop additional to factory sport suspension?
Do not assume that. Audi’s A4 ’08 programme puts the 1BE sport chassis 20 mm below standard, with 1BL electronic damping at the sport height. Confirm the actual factory chassis and later modifications, then check the baseline and adjustment limits used by the selected kit.
Let’s talk suspension.
Find your B8, then add its body, engine, drivetrain and both permitted axle loads. Include factory damping equipment, wheel specification and any previous changes so we can check the exact reference.