I believe that Audi is a great car brand. That's the reason I bought this Audi Coupe. So imagine my dismay when after just a few years of driving it, I'm now having problems starting it. The engine is misfiring on one or all of the cylinders and it is rough on idle. I also noticed some fuel leaking to the garage floor. Any idea what the problem/s could be?
From your description, it looks like you have a bad fuel injector. When the fuel injectors fail, it can lead to problems that can greatly affect the performance of the engine. The only solution for a bad fuel injector is replacement. Watch out for the common signs of faulty fuel injectors such as abrupt engine power, misfire, rough on idle, leaking fuel, and reduced gas mileage. Responding to these problems immediately can save you a great amount of money and can prevent the issue from damaging other parts in the fuel injection system.
For several weeks now, I have been enduring the clunking and other abnormal noises produced by my Audi Coupe even when I'm just stopping. Any idea how to make those strange noises go away?
Your car was made to have a smooth and quiet drive. If you are hearing noises such as knocking, squeaking, rattling, or clunking, these mean that something is wrong with your suspension system. A clunking noise is specifically an indication of worn bushings. These are parts of the suspension system and are also important in your vehicle's overall handling. Although technically they are simple rubber disks, they have important duties. And if they become worn or damaged, you will notice the adverse effects even if you are just driving on even road surface. Making the noise go away simply means replacement of the worn bushings.
There's only about 50,000 miles on this Audi Coupe so I don't understand why I'm already having problems with it. The other day, while maneuvering towards my garage, I heard some clicking and popping noise when turning. Trying to discern what the problem could be, I decided to run around the block and the noise got louder when I accelerated. There was a clunking noise when I shifted from Drive to Reverse. Please, can you help me get those noises to stop?
It looks like you are dealing with damaged constant velocity (CV) boots and possibly damaged CJ joints too. A CV joint is packed with special grease and sealed with rubber or plastic boots (CV boots). Both do not need any maintenance as long as the CV boot remains intact and undamaged. However, since the CV boot is only made of rubber, it will break down eventually. Once the boot got cracked, the grease will come out and the CV joint will start to wear. The CV joint will eventually fail due to lack of lubrication; that's when corrosion and the noises will start to occur. You will have to replace either the CV half shaft or the joint. Servicing the CV boot during maintenance visits to the shop will keep this from happening.