Common Audi Problems
(ie. Valve cover gasket, camshaft seals)
If your vehicle has a history of irregular oil changes, being in extreme climates, or low RPM driving, there is a higher chance your engine will start leaking. Condensation and moisture can form in the engine and cause sludge to build up, creating the possibility of a leak. In addition, the crankcase breather system can also become clogged, preventing the engine from ventilating properly and causing a buildup of pressure. Oil then leaks from the weakest parts of the system.
Other parts that are often leak culprits are the valve cover gaskets, camshaft seals and plugs, front and rear crankshaft seals, and cam chain tensioner gasket and seals; this last one is especially possible if you notice a burning oil smell.
(i.e. Coolant flange, radiator, coolant hoses, water pump)
Fuel pressure concerns
(ie. High pressure fuel system, or low pressure fuel concerns)
The high pressure fuel pump (HPFP) is a common issue among vehicles with Fuel Stratified Injection (FSI) engines. As the cam follower begins to wear, the end of the HPFP rests on the lobe of the intake camshaft, and both the pump and shaft become damaged. As your vehicle gets more mileage, an issue with the electronic fuel pressure regulator valve becomes more likely.
Fuel pressure problems with Turbocharged Stratified Injection (TSI) engines differ from issues with FSI engines, as they often involve the HPFP or the electronic fuel pressure valve, but the cam follower is most likely not at fault since these engines use roller type cam followers.
Replacement of timing belt, water pump, tensioner, and rollers
Vehicle overheats while driving or sitting at idle
Check engine light on
(ie. Could be running fine or have a noticeable drivability concern/ symptoms)
If the brake light or ABS lights are illuminated on your vehicle, the wheel speed sensor or ABS control module has most likely failed. This does not necessarily mean that the speed sensor is broken, it may just need to be cleaned off.
In addition to the speed sensor, any basic problem that causes the rear brakes to apply too quickly can activate the ABS. These issues may include cracked rear linings, oil-contaminated linings, weak brake return springs, or a faulty proportioning valve.
Smoke coming from exhaust
Low heat output from from vents
(ie. Clogged heater core, air in cooling system)
Steering wheel shakes/pulsation while braking
Window doesn't go up or down/crunching noise while moving windows
(ie. Faulty window regulator)
(ie. battery keeps dying)
If your Audi is experiencing electrical issues, do a visual and voltage battery test. Despite advancements, all batteries lose charging capacity over time.
If your battery seems to be doing fine, a bad starter could be the problem. However, starters on most newer cars easily outlast a vehicle’s warranty as long as the engine is not excessively overheated or exposed to a lot of debris. The alternator also could be the cause of frequent battery drain. With many electrical add-ons for newer models, the average lifespan for an alternator is around 3-4 years.
Finally, poor battery life is often caused by parasitic drain caused by electrical components in your vehicle that continue drawing current after it is turned off. While some drain is normal (i.e. for the clock, radio, and security alarm), electric problems such as a faulty seat control module can result in too much battery drain when your vehicle is not running.