The Audi RS5 is the top-of-the-line Audi A5 model that typically features either a naturally aspirated high-displacement V8 for the earlier models or a 3.0L turbo V6 for the newest models. The RS5 offers more than 450hp and was first revealed back in 2010.
The RS5 is known to be one of the most entertaining Audi sports coupes, especially if equipped with the aforementioned V8. There have been two RS5 generations with an additional two mid-cycle refreshes. The first two RS5 generations rely on a lovely 4.2L naturally aspirated V8 while the 2016 and on models rely on a more efficient 3.0L V6 turbo engine.
The early RS5 models are not renowned for their reliability even though the 4.2L V8 is a dependable engine. The latter two models are better but still aren’t the most reliable cars in their segments. The most common Audi RS5 issues are related to the engine, the transmission, the electronics, oil leaks, and cooling issues.
All in all, these are not the cheapest cars to own, especially the V8 models, but they are so fun to drive that it makes sense to pay for them. Either way, the RS5 is a blast to drive, but only buy one that has been kept in great condition with a mandatory pre-purchase inspection.
Audi RS5 engine issues
We have already mentioned that the RS5 is available with two different engines, a naturally aspirated 4.2L V8 or a twin-turbocharged 3.0L V6. The V8 is known to suffer from carbon build-up due to the way the engine has been manufactured. These carbon deposits need to be cleaned every 35,000 miles or the intake valve is going to cause issues.
The 3.0L V6 is known to suffer from spark plug and ignition coil failure every 60,000-80,000 miles. These need to be replaced and the engine will continue operating fine. All in all, the 3.0L twin-turbo V6 seems to be a better choice than the 4.2L as far as logic is concerned, but the V8 is certainly the engine for those who crave emotion over performance.
Audi RS5 transmission issues
The first-gen Audi RS5 comes with a Multitronic Mechatronic gearbox that is the most problematic gearbox to ever be used on an Audi RS5. This transmission suffers from solenoid failure, thermostat failure, and a bunch of other issues, especially if you don’t keep regular track of maintenance and fluid replacements.
The newer Audi RS5 comes with an 8-speed automatic gearbox that is sometimes known to suffer from hesitant shifts, grinding noises, or feeling jittery while accelerating. Most of these issues are associated with lackluster maintenance which means that they should not happen at all if you maintain the gearbox adequately.
Audi RS5 oil leak issues
It is a known fact that many premium luxury European sedans consume quite a lot of oil without any leaks, but if there are any leaks, oil consumption skyrockets. Early RS5 models are more prone to oil leaks because the 4.2L V8 engine consumes both lots of oil and lots of fuel. The 3.0L V6 found in the newer RS5 is slightly better, but not completely free of oil leaks.
The reason why these occur is due to worn-out seals and hoses which sometimes degrade due to being in near proximity to really hot engine components. If a leak occurs, you need to locate it and fix it as a lack of oil can cause severe engine damage, and even destroy the engine completely.
Audi RS5 cooling issues
The Audi RS5 is a performance car, yet many argue that it does not come with sufficient cooling, both to the engine and to the brakes. Many owners have complained that the brakes virtually die after a few hard laps on the track which also perfectly co-exists with an engine cooling fan that stays on for a long time.
Other reasons why the RS5 could potentially overheat are down to damaged radiators and hoses, but also a faulty thermostat. If you want to take your RS5 to a track day, be sure to first take it to a thorough inspection to make sure that all components are able to take the heat. Otherwise, you might find yourself risking blowing your engine or completely losing your braking abilities.
Audi RS5 electrical issues
The Audi RS5 also suffers from a myriad of electrical issues ever since it came out. Granted, most of these are minor and typically affect older cars, but they can be a big problem if not solved as they tend to add up and so do the repair costs. The most common electrical issues are related to the backup camera, the door handle lights, brake light issues, seat lumbar support issues, and faulty car locks.
Sometimes the power windows also cause issues such as not being able to close or opening freely. Airbag issues, Bluetooth issues, battery issues, speaker issues, and fuel door issues are also sometimes known to plague the RS5.
Is the Audi RS5 worth it?
It depends on who you are asking as some people aren’t willing to spend a bunch of money on what is arguably just an Audi A5 with a more powerful engine. Those who don’t care about dynamics, speed, power, and the legacy the Audi RS division represents, are better off with a 2.0L 4-cylinder Audi A5.
However, those who like fast cars will love the Audi RS5 as it is a perfect balance between a daily driver and a weekend canyon cruiser.
Which Audi RS5 is the best?
The best Audi RS5 is certainly the newest 2022 model because it is a better car than all of the last RS5 models in every way. It is more advanced, faster, more economical, and better equipped. Some will say that the best RS5 is the 1st gen post-facelift model thanks to its V8 engine.
All RS5 models are great, but if you want the car that does everything best, the 2022 Audi RS5 is the best.
Is the Audi RS5 a fast car?
The new Audi RS5 can hit 60mph from a standstill in just 3.5 seconds which makes it one of the fastest 4-door luxury coupes in its price range. The RS5 top speed is limited to 155mph, but if you pay Audi, they will let you take the RS5 up to 175mph.