Audi A5 problems you should know about

The Audi A5 is a stylish and luxurious car that offers a lot of driving pleasure, but some well-known technical issues can significantly disrupt your driving experience. Engine problems, transmission malfunctions, and electrical faults regularly occur in different generations of this model. If you’re considering an A5 or already drive one, it helps to know what to look out for. What signs indicate problems and how can you save yourself expensive repairs?

Why knowing about A5 problems pays off

You can prevent surprises if you know what can go wrong. When buying a used car, you save money by identifying problems early. As an owner, you can spot early signs before they escalate into costly repairs. Many common complaints are known to garages and online communities, so targeted checks and maintenance make a difference. The Audi A5 has certain common issues that multiple owners encounter. This depends on the year of manufacture and engine type. Some problems require attention in specific generations. Others emerge in all variants. If you also want to know more about technical problems with different Audi models, you will find practical information there that applies to your situation.

The A5 generations and model variants

Audi introduced the A5 in 2007 as the first generation, then designated with the platform code B8. This initial version was available as a Coupé and later as a Sportback and Cabriolet. In 2016, the second generation (platform code B9) appeared with improved engines, modern technology, and a revised design. Both generations have their own problem areas, although some defects overlap. The first generation (2007–2016) more frequently suffers from timing chain issues and oil consumption in certain engines. The second generation (from 2016) shows more electronic malfunctions due to more complex systems. Each body variant shares engine options and technology with other models from the same generation. As a result, some common ailments become universal.

Common engine problems

Excessive oil consumption particularly affects the 2.0 TFSI engine (TFSI stands for Turbo Fuel Stratified Injection, an Audi petrol technology) from the first generation (2007–2016). Owners report that the engine sometimes consumes one litre of oil per 1,000 kilometres. This is due to wear on piston rings and cylinder walls, ultimately causing damage. Regularly check the oil level and top it up as needed to prevent serious engine damage.

Timing chain problems occur in the 2.0 TFSI and 3.0 TFSI engines (TFSI is the abbreviation for Turbo Fuel Stratified Injection). The chain stretches or the tensioners fail, resulting in rattling noises on a cold start. If ignored, the chain can break, causing severe engine damage. Have the timing chain replaced as soon as you hear strange noises, especially in engines with high mileage.

Turbo problems manifest as loss of power, smoke emission, and whistling noises. The turbo wears out faster with careless use or insufficient maintenance. Replacement is costly, so ensure timely oil changes and avoid overworking the turbo when the engine is cold.

Transmission problems with different gearboxes

The S-tronic automatic gearbox is popular but not flawless. Jerky shifting at low speeds occurs regularly, especially in lower gears. This can indicate wear on the clutches in the dual-clutch system. Software updates sometimes resolve minor issues, but in cases of severe wear, the clutch set needs replacing.

The Multitronic continuously variable transmission (CVT stands for Continuously Variable Transmission) is known for malfunctions. This transmission can exhibit slipping behaviour and produce strange noises. Repair costs are high, so many owners switch to a manual or S-tronic variant. When buying second-hand, thoroughly check the maintenance history and extensively test the shifting behaviour.

Manual gearboxes rarely present major problems. Clutch wear occurs after high mileage, but that is normal. However, pay attention to difficult shifting or grinding noises, which could indicate worn synchronizers or clutch issues.

Electronics and software malfunctions

The MMI infotainment system (MMI stands for Multi Media Interface, Audi’s control and information system) can be slow to respond or freeze completely. This occurs more frequently after a few years of use and primarily affects models with more complex systems. A software update often resolves temporary problems, but hardware issues require module replacement.

Sensors for parking assist, lane departure warning, and other safety systems frequently fail. Moisture and corrosion can damage the wiring and connectors. Error messages on the dashboard indicate this. Check the sensors for dirt and have defective ones replaced to ensure the system functions correctly.

Software problems with engine management lead to error codes. This can potentially result in loss of power. The car sometimes enters limp mode to prevent further damage. A diagnosis at the garage will determine whether a software update helps or if sensors or other components need replacing.

Chassis and suspension problems

Ball joints and wishbones (components in the wheel suspension that connect the wheels to the body) wear out faster than expected. This manifests as knocking or clunking noises over bumps. Worn suspension bushes exacerbate the problem. Replace these components promptly to prevent further damage to other parts of the chassis.

Shock absorbers (components that dampen vibrations, thereby affecting comfort and road holding) lose their damping effect over time. The car then springs poorly or continues to bounce for longer after a bump. This reduces driving comfort and road holding. Regularly check the shock absorbers and replace them if there are signs of leakage or poor damping.

Steering rack problems are rarer but do occur. Play in the steering or heavy power steering can indicate leakage or wear in the steering rack. This often requires costly repairs, so recognise the signs early and have it checked.

Brakes that require attention

Squealing or scraping brakes indicate worn brake pads or damaged brake discs. The A5 has powerful brakes that wear faster with spirited driving. Regularly check the thickness of the brake pads and replace them promptly. If you ignore this, you will damage the brake discs, making the repair more expensive.

ABS (Anti-lock Braking System, prevents wheels from locking during braking) and ESP (Electronic Stability Program, helps keep the car stable) malfunctions occur due to defective sensors. Problems with the hydraulic unit can also cause this. Warning lights on the dashboard indicate these issues. Have the fault codes read and replace defective components immediately, as properly functioning safety systems are important.

Interior and exterior quirks

Rattles in the interior are annoying but do not always indicate serious problems. Loose clips, worn rubber seals, or poorly fitted panels cause noises. Check common areas such as the dashboard, doors, and centre console. Often, this can be resolved by securing parts or replacing rubber seals.

Wear to seat upholstery and dashboard materials occurs in cars with high mileage. Leather seats, in particular, may show cracks or discolouration after years. This primarily affects the appearance but does reduce the car’s value.

Door handles frequently break, especially in the first generation (2007–2016). The plastic components become brittle and fail with use. Replacement parts are affordable. However, it is inconvenient if you suddenly cannot open the door. Check the condition of the handles and replace them at the first signs of cracks.

Preventative maintenance that prevents problems

Regular oil changes according to the manufacturer’s maintenance intervals prevent engine problems. Use quality oil and replace the oil filter each time. This extends the lifespan of the engine and turbo.

Check fluid levels such as coolant, brake fluid, and power steering fluid every few months. Timely topping up prevents malfunctions and costly repairs. Also, look for leaks under the car, which often indicate worn gaskets or hoses.

Have the timing chain inspected on cars with high mileage or known historical risk. Early replacement costs money, but prevents total engine damage that would cost many times more.

Software updates improve the reliability and performance of your A5. Regularly visit the dealer for infotainment and engine management updates.

Second-hand purchase checklist

Thoroughly check the maintenance history. Look for evidence of timely oil changes, replacement of wear parts, and any recalls that have been addressed. A well-maintained A5 will present fewer problems.

Test all electronic systems during the test drive. Try the infotainment, sensors, air conditioning, and all buttons and switches. Error messages on the dashboard are a warning.

Listen for engine noises, especially on a cold start. Rattling or ticking sounds indicate timing chain problems. Check that the engine runs smoothly and exhibits no strange vibrations.

Inspect the condition of the chassis and suspension. Clunking noises over bumps indicate worn components. Check that the car steers straight and doesn’t pull to one side.

Ask if the car consumes oil and check the oil level. Owners who are open about this often provide a more honest picture. Excessive oil consumption indicates serious engine problems.

Extensively test the transmission. The S-tronic should shift smoothly without jerking. With a Multitronic, pay attention to slipping behaviour. A manual gearbox should shift easily without grinding noises.

The A5 remains attractive with realistic expectations

The Audi A5 offers an attractive combination of style, comfort, and driving pleasure. As with many cars, technical problems can occur, especially in models with higher mileage. The known engine problems, transmission malfunctions, and electronic quirks need not be a concern if you maintain the car well and intervene early. When buying second-hand, you run less risk if you thoroughly check and review the maintenance history. With realistic expectations and focused attention on its weak points, you can enjoy this versatile car for years.