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Audi

Hello - a P0455 (https://www.yourmechanic.com/article/p0455-obd-ii-trouble-code-system-gross-leak-evaporative-emission-by-john-nelson) indicates a large evaporative emissions leak. This problem code originates with the evaporative emissions system purge valve, which expects positive pressure flow from the evap emissions cannister - which captures fumes from the fuel tank...

The status of the oxygen sensors is unrelated to the present no start. Overheating has the potential to cause head gasket leaks and valve and piston damage. You should measure cylinder compression to rule out low compression as a cause...

Inspection service is available in Hillside, NJ. To request an inspection, please schedule via YourMechanic's pre-purchase vehicle inspection service page (https://www.yourmechanic.com/services/pre-purchase-car-inspection). An inspection of the specific vehicle you want to purchase, carried out by a certified Mechanic, dispatched to your...

Hello. I would say care cost of a European built vehicle versus an Asian built vehicle is about 20 - 30%. The Asian manufactured parts can be cheaper because they are generally more mass-produced but the European Parts can be...

Hey there. This maybe related to many different transmission components such as a speed sensors (https://www.yourmechanic.com/services/speed-sensor-replacement), the transmission control solenoid or the module itself. The transmission control solenoid (https://www.yourmechanic.com/services/downshift-solenoid-replacement) controls the flow of transmission fluid inside the transmission. Every time...

The navigation system and the radio do affect each other and use each other to work. When the navigation comes on it turns the radio on as well to provide volume for the voice directions. This is normal operation and...

What a technician would do is first check the level and condition of the transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service) on your 2001 Audi A8 Quattro. Next, they would use a Volkswagen-compatable scan tool which will allow the Transmission Control Module (TCM) to...

Hello. It sounds like you have interference motor that will need to be replaced. An interference motor is one that has very tight valve clearance between the cylinder head and the engine piston. If the timing belt breaks in this...

With most any other vehicle, your diagnosis would be dead on, congratulations! In your case, the problem is most likely the thermostat. With this Audi engine, the Audi engineers were more clever, there is only a single coolant temperature sensor,...

The shaking could be your tie rods. There are two sets of tie rods on your vehicle. The two inner tie rods and two outer tie rods. The outer tie rods are easily replaced but require the car to be...

Squeaking is often drive belt or pulley related but in your case the starter motor would have to be considered as well. If the starter turns, or you hear significant noise at starting, but the engine literally is not turning...

What you are describing stems from an electrical malfunction, possibly "global" in nature, that is affecting multiple systems on your car. To resolve that, an electrical diagnostic will have to be performed. YourMechanic offers mobile electrical diagnostic services (https://www.yourmechanic.com/services/electric-problems-inspection). If...

Some common causes of too much fuel being delivered in a situation like that you describe are: a faulty coolant temperature sensor (the temperature signal is a part determinant of injector pulse width); leaking fuel injector(s) allowing too much fuel...

Hello, there are a variety of causes for the power window regulator (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-window-motor-regulator-assembly) to fail. The most likely would be the regulator, switch, and regulator motor. Given that these have been replaced it should take care of the issue. Humidity...

If there was oil splattered all over the bottom of the vehicle, there is a good chance that the smoke you are seeing may just be excess oil that is being burnt off of the hot motor and exhaust. To...

This is a problem inside the nav/radio unit. The system will have to be tested and serviced by a dealer certified repair facility. You may have to have it removed and sent out for repair or replacement.

Hi there: The symptoms you're describing are similar in many ways to restriction of hydraulic fluid inside the transmission. Sometimes flushing the transmission fluid can help remove those obstructions; but in most cases, it delays the inevitable task of removing...

Your engine is an interference engine which means that if you turn the crankshaft and/or camshafts independently of one another, with the timing chain removed, the valves will interfere with the pistons causing the valve stems to bend. The timing...

Hello, if you don't hear the motor even try to work, you may want to check the fuses. If you hear the motor and it moves in small increments, you may want to try closing the sunroof by activating the...

I would suspect that the steering is electronic and something was not making contact when you were going over the bumps and caused the steering to lock. It could also be a programming issue or a steering sensor issue. Have...