Likes
- One of the great RS models.
- Surely everything you’d ever need from one car.
- That engine, the sound, the experience.
- Thanks to depreciation, can offer great value for money.
Used Audi RS4 (B8) review
2012 - 2015
Dislikes
- Not the best reputation for reliability.
- Very expensive repair and servicing costs.
- Many used examples have missed critical maintenance.
- Will the depreciation ever stop?
Stuff you should know
Arriving locally in 2013, the B8 generation of Audi RS4 wasn’t just the flagship of the A4 range, it was easily the most performance-focused model of the line-up.
On the used market today, the vast majority of RS4s you’ll come across are the single trim spec Avant, though typical for Audi, buyers had the option to customise their cars extensively from the factory.
While the majority on the used market will be the single trim spec, a rare exception is the incredibly limited Nogaro Selection edition, created to celebrate the 20th anniversary of the legendary RS2 Avant. However, finding one of these on the used market is about as likely as finding an actual RS2, which is to say, near impossible.
Under the bonnet, the RS4 is powered by a glorious 4.2-litre naturally aspirated V8, paired with 7-speed dual-clutch transmission and Audi’s Quattro all-wheel-drive system. While the V8 delivers an intoxicating soundtrack and that immediate, linear power delivery that turbocharged engines struggle to replicate, it can come with some significant question marks. Not only is it down on power and torque compared to its successor, the B9 RS4 with its 2.9-litre twin-turbo V6, but the B8’s high-revving V8 is often regarded as one of the most complicated naturally aspirated engines available. This complexity brings with it a host of reliability concerns, and as always, we break down exactly what you need to watch out for in our “what goes wrong” section.
That said, if you can overlook potential mechanical concerns, the RS4 arguably embodies everything enthusiasts could ever want in a car. With its Avant body style, it offers immense practicality, it’s packed with features, its design is subtly aggressive while still exuding sophistication, and thanks to its V8 and immense Quattro traction, the driving experience is nothing short of exhilarating.
When it comes to features and equipment, as the range-topping A4 model, the RS4 is very well equipped. Premium Nappa leather, a high-end sound system, power-adjustable everything and Audi’s intuitive MMI infotainment system were all standard. However, due to its age, the B8 lacks Apple CarPlay and Android Auto as standard (although easy to retrofit), and it also misses out on the latest autonomous and active safety technologies found in more modern performance cars.
While the overall reliability can raise a few question marks, owners consistently report outstanding build quality and fit-and-finish, to the point where many claim the B8 RS4 surpasses newer RS models in terms craftsmanship and overall solidity.
And thanks to aggressive depreciation, the RS4 has become an incredibly tempting option at its current price point. However, it’s an ageing Audi, and if our previous reports have taught us anything, that can be a serious cause for concern. So, what do you need to look out for?
What goes wrong
Exterior
- One of the most critical things to check is the drainage channels, particularly around the sunroof. This seems to be a common issue across many Volkswagen Group vehicles, and if these channels are blocked, water will inevitably find its way into the cabin. And given how many sensitive electronics live inside the RS4, that can be a nightmare waiting to happen. The easiest way to check? Pour water over the car and watch to see if it drains properly behind the front wheels. If it doesn’t, walk away.
- Even if the drainage system has been perfectly maintained, there’s still a risk. There are a few reports that the plastic connectors joining the drainage tubes are beginning to deteriorate with age, and if they fail, water can once again enter the cabin. The worst part? Fixing this can sometimes require removing the headlining, which can be an infuriating job.
- For some owners, the first sign of water ingress is a wave of strange electronic gremlins, maybe the sunroof won’t open or close properly, the power windows or mirrors start misbehaving, or the keyless entry and central locking become temperamental. Any of these can be linked to moisture damage, but they could also be the result of ageing connectors and wiring in general. Either way, if you’re looking at buying one, check everything electrical and make sure it works as it should.
- Speaking of the sunroof, the RS4 isn’t quite as notorious for sunroof issues as its coupe sibling RS5, but problems can still crop up. If the sunroof refuses to close or operates sluggishly, it could be down to a failing motor, a calibration issue, or even misalignment. Another possible culprit? The wind deflector spring resistance. If it’s too strong for the sensitivity of the sunroof’s obstruction detection, the system can think there’s something in the way and refuse to close.
- The RS4 is a serious performance car, but it also weighs around 1800 kg (3950 lb), and if you like to drive it as it was intended, it’ll chew through rubber at a rapid rate. And to get the best out of it, you’ll need premium performance tyres, which aren’t exactly cheap. Budget for this.
- Control arm bushes are a known wear item, and many owners strongly recommend ditching the OEM components in favour of aftermarket alternatives. The same goes for cars fitted with Audi’s Dynamic Ride Control (DRC). This adaptive damper setup has earned a reputation for being problematic, and replacing faulty components with factory parts has led to some eye-watering repair bills, some owners have been quoted over $2000 per corner.
- If driven normally, the OEM Brake rotors
Exterior
- One of the most critical things to check is the drainage channels, particularly around the sunroof. This seems to be a common issue across many Volkswagen Group vehicles, and if these channels are blocked, water will inevitably find its way into the cabin. And given how many sensitive electronics live inside the RS4, that can be a nightmare waiting to happen. The easiest way to check? Pour water over the car and watch to see if it drains properly behind the front wheels. If it doesn’t, walk away.
- Even if the drainage system has been perfectly maintained, there’s still a risk. There are a few reports that the plastic connectors joining the drainage tubes are beginning to deteriorate with age, and if they fail, water can once again enter the cabin. The worst part? Fixing this can sometimes require removing the headlining, which can be an infuriating job.
- For some owners, the first sign of water ingress is a wave of strange electronic gremlins, maybe the sunroof won’t open or close properly, the power windows or mirrors start misbehaving, or the keyless entry and central locking become temperamental. Any of these can be linked to moisture damage, but they could also be the result of ageing connectors and wiring in general. Either way, if you’re looking at buying one, check everything electrical and make sure it works as it should.
- Speaking of the sunroof, the RS4 isn’t quite as notorious for sunroof issues as its coupe sibling RS5, but problems can still crop up. If the sunroof refuses to close or operates sluggishly, it could be down to a failing motor, a calibration issue, or even misalignment. Another possible culprit? The wind deflector spring resistance. If it’s too strong for the sensitivity of the sunroof’s obstruction detection, the system can think there’s something in the way and refuse to close.
- The RS4 is a serious performance car, but it also weighs around 1800 kg (3950 lb), and if you like to drive it as it was intended, it’ll chew through rubber at a rapid rate. And to get the best out of it, you’ll need premium performance tyres, which aren’t exactly cheap. Budget for this.
- Control arm bushes are a known wear item, and many owners strongly recommend ditching the OEM components in favour of aftermarket alternatives. The same goes for cars fitted with Audi’s Dynamic Ride Control (DRC). This adaptive damper setup has earned a reputation for being problematic, and replacing faulty components with factory parts has led to some eye-watering repair bills, some owners have been quoted over $2000 per corner.
- If driven normally, the OEM Brake rotors and pads can last between 50,000 and 60,000 km, but when it comes time for replacement, again expect a hell of a bill, some owners have been quoted upwards of $3500. But the hot tip from both owners and technicians is to research aftermarket options. In many cases, they’re not only cheaper but can outperform and outlast the factory Audi parts.
Interior
- Like so many Volkswagen Group vehicles, the RS4 isn’t immune to electrical gremlins. As mentioned with the exterior, if the car is experiencing strange electronic issues, it could be due to water ingress, but it could also simply be down to ageing wiring, corroded connectors, or failing relays.
- Given how much heat and vibration Australian conditions throw at cars, it’s not exactly surprising that some of these components start acting up over time.
- Warning lights can appear despite nothing being wrong, power windows, climate control, and the infotainment system can all become erratic, and the instrument cluster can flicker, display incorrect readings, or suffer circuit board failures. The good news? Some of these fixes, such as repairing the gauge cluster’s circuit board, can be relatively straightforward and inexpensive.
- The MMI infotainment system, while starting to feel its age, still has its fans. The screen resolution is undeniably outdated, and if you want Apple CarPlay or Android Auto, you’ll have to retrofit it, but the system itself is intuitive and enjoyable to use. Plenty of owners actually prefer it to Audi’s newer, more touchscreen-heavy setups.
Mechanically
Engine
- Overall, the RS4’s 4.2-litre V8 isn’t considered unreliable, but it does have its fair share of quirks.
- Coil packs and spark plugs can occasionally cause misfires, and the engine’s complex breather system has been known to develop vacuum leaks, which can lead to lean air-fuel ratio issues.
- Oil consumption is another well-documented trait of these engines, and keeping on top of oil changes and top-ups is absolutely critical. These engines must not be neglected under any circumstances, a concern when buying used.
- As they age, carbon build-up is becoming increasingly common, but the fix (walnut or media blasting) is straightforward and not a major concern.
- More of an issue, however, are coolant leaks. Thermostat and housing leaks are becoming more prevalent, as are water pump failures.
- Oil leaks are also something to keep an eye on, particularly from the timing cover, oil filter housing, and valley cover.
- While high-pressure fuel pump leaks aren’t widespread, they do occur.
- Then we get to the timing chains. These engines use four separate chains, each with its own guides, tensioners, and gears, and they’re responsible for driving a ridiculously complicated internal setup that powers the steering pump, air conditioning compressor, and water pump. The problem? They’re located at the back of the engine, meaning the entire front subframe, engine, and transmission need to be removed for access. This is not a job you want to be paying for.
- If a chain, tensioner, or guide actually breaks, it can result in catastrophic engine failure, though this isn’t a common occurrence. Typically, there will be warning signs, such as a noticeable rattling noise, and if you hear it, it’s best to act quickly. Neglected, high-mileage, poorly modified, or abused cars are at the highest risk of timing chain issues.
- These V8s are some of the most complex naturally aspirated engines around. They’re brilliantly designed and incredibly compact, which is great for performance and packaging but an absolute nightmare when it comes to working on them.
Transmission
- The 7-speed dual-clutch transmission has its quirks. It can lurch and behave strangely at low speeds, particularly in stop-start traffic, but that’s just a characteristic of this style of gearbox. It also employs a cooling strategy designed to minimise slip and keep temperatures in check, which can make its operation feel odd at times.
- While they’re not considered unreliable, like all Volkswagen Group dual-clutch transmissions, they are susceptible to issues with the mechatronics unit and clutch packs. The likelihood of problems increases if the car has been modified or poorly maintained, so service history is critical.
- Driveline servicing, including the transmission, front differential, and rear differential, needs to be done every 50,000 km, and it isn’t cheap. But then, nothing about maintaining an RS4 is.
Exterior
- One of the most critical things to check is the drainage channels, particularly around the sunroof. This seems to be a common issue across many Volkswagen Group vehicles, and if these channels are blocked, water will inevitably find its way into the cabin. And given how many sensitive electronics live inside the RS4, that can be a nightmare waiting to happen. The easiest way to check? Pour water over the car and watch to see if it drains properly behind the front wheels. If it doesn’t, walk away.
- Even if the drainage system has been perfectly maintained, there’s still a risk. There are a few reports that the plastic connectors joining the drainage tubes are beginning to deteriorate with age, and if they fail, water can once again enter the cabin. The worst part? Fixing this can sometimes require removing the headlining, which can be an infuriating job.
- For some owners, the first sign of water ingress is a wave of strange electronic gremlins, maybe the sunroof won’t open or close properly, the power windows or mirrors start misbehaving, or the keyless entry and central locking become temperamental. Any of these can be linked to moisture damage, but they could also be the result of ageing connectors and wiring in general. Either way, if you’re looking at buying one, check everything electrical and make sure it works as it should.
- Speaking of the sunroof, the RS4 isn’t quite as notorious for sunroof issues as its coupe sibling RS5, but problems can still crop up. If the sunroof refuses to close or operates sluggishly, it could be down to a failing motor, a calibration issue, or even misalignment. Another possible culprit? The wind deflector spring resistance. If it’s too strong for the sensitivity of the sunroof’s obstruction detection, the system can think there’s something in the way and refuse to close.
- The RS4 is a serious performance car, but it also weighs around 1800 kg (3950 lb), and if you like to drive it as it was intended, it’ll chew through rubber at a rapid rate. And to get the best out of it, you’ll need premium performance tyres, which aren’t exactly cheap. Budget for this.
- Control arm bushes are a known wear item, and many owners strongly recommend ditching the OEM components in favour of aftermarket alternatives. The same goes for cars fitted with Audi’s Dynamic Ride Control (DRC). This adaptive damper setup has earned a reputation for being problematic, and replacing faulty components with factory parts has led to some eye-watering repair bills, some owners have been quoted over $2000 per corner.
- If driven normally, the OEM Brake rotors and pads can last between 50,000 and 60,000 km, but when it comes time for replacement, again expect a hell of a bill, some owners have been quoted upwards of $3500. But the hot tip from both owners and technicians is to research aftermarket options. In many cases, they’re not only cheaper but can outperform and outlast the factory Audi parts.
Interior
- Like so many Volkswagen Group vehicles, the RS4 isn’t immune to electrical gremlins. As mentioned with the exterior, if the car is experiencing strange electronic issues, it could be due to water ingress, but it could also simply be down to ageing wiring, corroded connectors, or failing relays.
- Given how much heat and vibration Australian conditions throw at cars, it’s not exactly surprising that some of these components start acting up over time.
- Warning lights can appear despite nothing being wrong, power windows, climate control, and the infotainment system can all become erratic, and the instrument cluster can flicker, display incorrect readings, or suffer circuit board failures. The good news? Some of these fixes, such as repairing the gauge cluster’s circuit board, can be relatively straightforward and inexpensive.
- The MMI infotainment system, while starting to feel its age, still has its fans. The screen resolution is undeniably outdated, and if you want Apple CarPlay or Android Auto, you’ll have to retrofit it, but the system itself is intuitive and enjoyable to use. Plenty of owners actually prefer it to Audi’s newer, more touchscreen-heavy setups.
Mechanically
Engine
- Overall, the RS4’s 4.2-litre V8 isn’t considered unreliable, but it does have its fair share of quirks.
- Coil packs and spark plugs can occasionally cause misfires, and the engine’s complex breather system has been known to develop vacuum leaks, which can lead to lean air-fuel ratio issues.
- Oil consumption is another well-documented trait of these engines, and keeping on top of oil changes and top-ups is absolutely critical. These engines must not be neglected under any circumstances, a concern when buying used.
- As they age, carbon build-up is becoming increasingly common, but the fix (walnut or media blasting) is straightforward and not a major concern.
- More of an issue, however, are coolant leaks. Thermostat and housing leaks are becoming more prevalent, as are water pump failures.
- Oil leaks are also something to keep an eye on, particularly from the timing cover, oil filter housing, and valley cover.
- While high-pressure fuel pump leaks aren’t widespread, they do occur.
- Then we get to the timing chains. These engines use four separate chains, each with its own guides, tensioners, and gears, and they’re responsible for driving a ridiculously complicated internal setup that powers the steering pump, air conditioning compressor, and water pump. The problem? They’re located at the back of the engine, meaning the entire front subframe, engine, and transmission need to be removed for access. This is not a job you want to be paying for.
- If a chain, tensioner, or guide actually breaks, it can result in catastrophic engine failure, though this isn’t a common occurrence. Typically, there will be warning signs, such as a noticeable rattling noise, and if you hear it, it’s best to act quickly. Neglected, high-mileage, poorly modified, or abused cars are at the highest risk of timing chain issues.
- These V8s are some of the most complex naturally aspirated engines around. They’re brilliantly designed and incredibly compact, which is great for performance and packaging but an absolute nightmare when it comes to working on them.
Transmission
- The 7-speed dual-clutch transmission has its quirks. It can lurch and behave strangely at low speeds, particularly in stop-start traffic, but that’s just a characteristic of this style of gearbox. It also employs a cooling strategy designed to minimise slip and keep temperatures in check, which can make its operation feel odd at times.
- While they’re not considered unreliable, like all Volkswagen Group dual-clutch transmissions, they are susceptible to issues with the mechatronics unit and clutch packs. The likelihood of problems increases if the car has been modified or poorly maintained, so service history is critical.
- Driveline servicing, including the transmission, front differential, and rear differential, needs to be done every 50,000 km, and it isn’t cheap. But then, nothing about maintaining an RS4 is.
Should you buy it?
This cheat sheet might sound like we’re telling you to run as far away from the RS4 as possible, but that’s not necessarily the case.
The key to making RS4 ownership a genuinely rewarding experience is being incredibly selective about the car you choose. You absolutely must find an example with an impeccable service history, where every maintenance interval has been religiously followed, and ideally, where any known problem areas have already been addressed. The good news? These cars do exist.
This is an enthusiast car, and that means there are plenty of properly cared-for, meticulously maintained examples out there, ones that have been owned by dedicated fans who’ve spared no expense in keeping them in top shape. And trust us, it is well worth paying a premium for one of those.
DO NOT get tempted by some ex-lease, neglected, or questionably modified RS4 that seems like a bargain. No matter how good the price looks, if it has a sketchy history, there is a very real chance it will come back to haunt you in ways that will make your wallet cry.
And let’s be honest, even if you do find the perfect RS4, it’s still a high-performance European car with an incredibly complex engine, drivetrain, and electronics. So, unless you enjoy rolling the dice with your finances, it’s probably a very good idea to have a dedicated “just in case the RS4 decides to shit itself” fund sitting in the bank, ready for
This cheat sheet might sound like we’re telling you to run as far away from the RS4 as possible, but that’s not necessarily the case.
The key to making RS4 ownership a genuinely rewarding experience is being incredibly selective about the car you choose. You absolutely must find an example with an impeccable service history, where every maintenance interval has been religiously followed, and ideally, where any known problem areas have already been addressed. The good news? These cars do exist.
This is an enthusiast car, and that means there are plenty of properly cared-for, meticulously maintained examples out there, ones that have been owned by dedicated fans who’ve spared no expense in keeping them in top shape. And trust us, it is well worth paying a premium for one of those.
DO NOT get tempted by some ex-lease, neglected, or questionably modified RS4 that seems like a bargain. No matter how good the price looks, if it has a sketchy history, there is a very real chance it will come back to haunt you in ways that will make your wallet cry.
And let’s be honest, even if you do find the perfect RS4, it’s still a high-performance European car with an incredibly complex engine, drivetrain, and electronics. So, unless you enjoy rolling the dice with your finances, it’s probably a very good idea to have a dedicated “just in case the RS4 decides to shit itself” fund sitting in the bank, ready for any surprises.
But here’s the thing, when everything is working as it should, this car is an absolute masterpiece. It’s one of those rare machines that makes you feel special every time you drive it, every time you look at it, and every time you sit in it. If you can afford it, and you’ve got a second car to rely on for those inevitable maintenance periods, then yes, go for it.
Should you buy it?
This cheat sheet might sound like we’re telling you to run as far away from the RS4 as possible, but that’s not necessarily the case.
The key to making RS4 ownership a genuinely rewarding experience is being incredibly selective about the car you choose. You absolutely must find an example with an impeccable service history, where every maintenance interval has been religiously followed, and ideally, where any known problem areas have already been addressed. The good news? These cars do exist.
This is an enthusiast car, and that means there are plenty of properly cared-for, meticulously maintained examples out there, ones that have been owned by dedicated fans who’ve spared no expense in keeping them in top shape. And trust us, it is well worth paying a premium for one of those.
DO NOT get tempted by some ex-lease, neglected, or questionably modified RS4 that seems like a bargain. No matter how good the price looks, if it has a sketchy history, there is a very real chance it will come back to haunt you in ways that will make your wallet cry.
And let’s be honest, even if you do find the perfect RS4, it’s still a high-performance European car with an incredibly complex engine, drivetrain, and electronics. So, unless you enjoy rolling the dice with your finances, it’s probably a very good idea to have a dedicated “just in case the RS4 decides to shit itself” fund sitting in the bank, ready for any surprises.
But here’s the thing, when everything is working as it should, this car is an absolute masterpiece. It’s one of those rare machines that makes you feel special every time you drive it, every time you look at it, and every time you sit in it. If you can afford it, and you’ve got a second car to rely on for those inevitable maintenance periods, then yes, go for it.
Need help with finance?
Powered by
Models, pricing & features
Tech specs
Body Styles
- 5 door Wagon
Engine Specs
- 4.2 litre, 8-cylinder petrol, 331kW / 430Nm
Transmission
- 7-speed Sports Automatic Dual Clutch
Fuel Consumption
- 8.5 – 14.6 / 100km
Length
- 4719mm
Width
- 1850mm
Height
- 1416mm
Wheelbase
- 2813mm
Kerb Weight
- 1870kg
Towing
- Not listed
Ancap Ratings
- Not tested
Body Styles
- 5 door Wagon
Engine Specs
- 4.2 litre, 8-cylinder petrol, 331kW / 430Nm
Transmission
- 7-speed Sports Automatic Dual Clutch
Fuel Consumption
- 8.5 – 14.6 / 100km
Length
- 4719mm
Width
- 1850mm
Height
- 1416mm
Wheelbase
- 2813mm
Kerb Weight
- 1870kg
Towing
- Not listed
Ancap Ratings
- Not tested
Body Styles
- 5 door Wagon
Engine Specs
- 4.2 litre, 8-cylinder petrol, 331kW / 430Nm
Transmission
- 7-speed Sports Automatic Dual Clutch
Fuel Consumption
- 8.5 – 14.6 / 100km
Length
- 4719mm
Width
- 1850mm
Height
- 1416mm
Wheelbase
- 2813mm
Kerb Weight
- 1870kg
Towing
- Not listed
Ancap Ratings
- Not tested
Warranty & servicing
Warranty
- 3 years / unlimited km
Servicing
- 15,000 km / 12 months
Buying a used car? Buy a PPSR report first.
Have ultimate peace of mind when buying a used car by purchasing an official PPSR report.
In the market?
Disclaimer
Please note that pricing information is subject to fluctuations in the automotive market.
Information correct as of Mar 13, 2025.
The advice provided on this website is general advice only. It has been prepared without taking into account your objectives, financial situation or needs. Before acting on this advice, you should consider the appropriateness of the advice, having regard to your own objectives, financial situation and needs.
Read our full terms and conditions here.
