Audi S8 owners have reported 3 other fuel system related problems since 1996. Table 1 shows the 1 most common other fuel system problems. The number one most common problem is related to the vehicle's other fuel system (3 problems). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Other Fuel System problems |
While on the highway, I noticed that the car was not picking up appropriate speed when accelerating. There was no prior notice or engine lights or any abnormalities with the vehicle prior to this. I decided to pull off the highway at a rest area and as the car was slowed down around 15-20 mph, I lost total power of the vehicle and was unable to steer or use the brakes. Luckily the car was able to coast to a stop without injury but was extremely frightening with my family in the vehicle. After tow to the Audi dealership I was informed that the problem was a catastrophic failure of the turbos in the engine. I did extensive review of this problem and find out that it is a known problem and boils down to a design flaw where a small oil screen essentially starves the turbos of oil. Sometime these screens have clogged but in many cases are just fine but in all cases have lead to turbo failure. This is not a maintenance issue and all vehicles I have reviewed have been factory maintained with service records available such as in the case of my vehicle. This is not currently covered by an Audi extended warranty and repairs are very costly averaging around 12-13k from the dealerships. I contacted Audi of America and filed a complaint (as many people have) and they did not offer any assistance. They are aware of this design flaw and costly repair but have not issued any recalls. This is clearly a safety concern because had I lost power on the highway I most certainly would have been involved in a catastrophic accident. Audi had recently issued an extended warranty service on a faulty engine oil pcv valve and that repair was around 2-3k. Clearly there is a trend here with these engines. I am hopeful that with this and other complaints, that this major safety issue will lead to warranty extension and/or recall for repair of this problem. Thank you.
After a period of acceleration on the highway, the gas pedal was released, but the car continued to accelerate out of control. Applying the brake pedal did not stop the car, and the acceleration stopped only after the car was turned off and back on.
I already filed complaint 11218674. This is adding detail. Audi has issued TSB 2044640/5 (https://static. Nhtsa. Gov/odi/tsbs/2018/mc-10153123-9999. Pdf) to address the damage when this very known issue occurs. The problem identified in the TSB is that original parts require replacement (oil screen and check value). Significantly, the original oil screen has been re-designed to prevent the catastrophic engine failure. This engine failure can create an extremely hazardous safety issue for all vehicle occupants when this problem arises. There is no warning for when this issue will manifest. For some it happens at speed on freeways. For others it happens in intersections. Due to zero warning to alert the driver to get off the road, this known condition of oil supply failure to the turbo puts vehicle occupant in unsafe situations. Audi should recall all applicable vehicles and replace the oil screen and check valve as outlined in their TSB. By doing so, great vehicle damage will be avoided and the roadside incidences created by this manufacturer defect will stop. All passengers of impacted vehicles covered by this TSB are in threat of harm until Audi proactively addresses their design defect before in manifests on the road. Audi dealing with this problem (via the TSB and no recall) after it occurs rather than proactively preventing it devalues the safety of its customers. This behavior also creates a much larger financial burden on Audi itself when the turbos fail for cars under warranty and for its customers when the turbos fail for cars not under warranty. The right choice for Audi is to issue a recall. Its customers will be thankful and more aligned with company and its products in the future knowing they are valued.