The Audi A4 B7, 2004-2008, offered in two-door, four-door, and five-door body styles, was noticed for its high performance, such as improved steering, and stylish look, including its updated front grille assembly. Many drivers of this German auto praised it as an ideal compact executive car. There are, however, a few common concerns regarding these automobiles. These include the following:
Diverter Valve Failure: Some owners have described a loss of boost. This could be due to the DV getting chipped, the diaphragm tearing, or pinholes.
PCV Failure: If your A4 misfires, you notice a decrease in gas mileage, or your car has a minor oil leak, positive crankcase ventilation could be the problem. If gas is unable to be vented to the intake manifold from the crankcase, your engine could become compromised.
Broken Intake Ducting: Owners experiencing an increase in coolant temperatures or rough idling should be aware of this possible problem. Debris in the system, for example, can lead to serious engine damage.
Cam Lobe Wear: If you notice fuel cut-out and your car has the 2.0TFSI engine, your Audi might need to be examined for cam lobe wear. Other signs can include bucking or pulsing sensations. The check engine light might turn on.
High Pressure Fuel Pump Failure: Similar to cam lobe wear, this malfunction may also lead to fuel cut-out, especially between mid and low range RPMs.
To repair these common issues, contact a nearby German auto repair shop. Independent specialists can provide affordable yet efficient repairs. They are knowledgeable about your make and model and will be happy to help you with your Audi.
Search for a local, independent Audi repair shop with Audi mechanics that have dealer-level expertise at a fraction of the expense.