I always take time to inspect my vehicle, thus I was surprised when I saw that the tires of my three-year-old Audi 90 Quattro were already worn-out. Perhaps that's the reason why I've been also experiencing difficulties in handling. I just bought a new set of tires two years ago, not to mention that I bought from an expensive and trusted brand. I cannot afford to buy a new set again. Is there something wrong with my driving that caused my tires to wear out?

Your set of tires is indeed one of the most used parts of your vehicle. Over time, it is an accepted reality that it would eventually wear out. In your case, however, your tires succumbed to premature wear. You are right—your driving style could be a factor on why it aged so fast. Another reason could be your vehicle's differential has failed. This part allows the wheels or axles to turn at varying speeds. When this part fails, the wheels will scratch against the road surface, which causes excessive tire wear. This also leads to drivetrain damage and handling problems. You need to bring your vehicle to the repair shop to have your differential replaced. If you ignore this problem, no matter how many times you replace your tires, they will all end up damaged and worn out. Once replaced, you need to test the differential locks once a month for routine maintenance. This helps to keep the parts moving and prevent the actuators from seizing.

I was trying to exit from the parking lot when I noticed that my reverse lights were not working. I almost hit a pedestrian because the lights were off. I checked the bulbs, and they were not busted. I knew that because I just replaced all of my vehicle's lights last year. My license plate lights were also dead. What's the problem with my vehicle?

One of the most common problems of the Audi 90 Quattro is having a problematic trunk lid wire harness. This part is responsible for enabling power to the reverse lights, fog lights, license plate lights, latch actuator, and anti-theft micro-switch. Over time, this wiring could be eaten up by rust and become damaged. When this happens, all of the parts connected to it will stop working. In this case, you need to bring your vehicle to a quality car audio shop to have the harness repaired or replaced. This is to ensure that you will not encounter any accident while you are driving.

Whenever I start my vehicle, it feels like it is suffering from a rough running engine. It will last for only a few seconds, but it always happens every time. I also noticed that my vehicle has been releasing a white, sweet-smelling smoke from the tailpipe. What's happening?

Another common problem for this particular model is a head gasket failure. This is usually caused by an overheated engine or high mileage. The white smoke and the rough engine are just a few symptoms of having a failed head gasket. What you can do is to replace the head gasket of your vehicle as soon as you can to avoid encountering problems while you are on the road.

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