Audi A5 Bad Spark Plugs: Symptoms, Diagnosis, + How to Fix

An engine functions as a pump, requiring a precise combination of fuel, air, and spark. If any element of this trio is imbalanced, your Audi A5 won’t run right (or at all). While a misfire is the symptom of bad spark plugs, bad spark plugs almost always indicate a problem with the engine (more on … Read more

Audi A5 Bad Oxygen Sensor: Symptoms and Diagnosis + How to Fix

Oxygen sensors play a crucial role in your Audi A5’s emissions system and fuel management. These sensors detect the levels of oxygen present in the exhaust, which is a primary component in maintaining the optimal air-fuel ratio. A damaged or faulty oxygen sensor can have a significant impact on your car’s overall performance, making it … Read more

Audi A5 Low Oil Pressure: Diagnosis and Causes

One of the most serious issues that can happen to your Audi A5‘s engine is if it ends up with low oil pressure.  Low oil pressure will cause the engine to seize up.  When the oil pressure light on, it should be assumed that the engine locking up is imminent. We advise not running the … Read more

Audi A5 Blown Head Gasket: Symptoms, Causes, How to Fix

One of the most common (and) critical major engine problems is a blown head gasket. If your Audi A5 has blown a head gasket, you may find it running poorly or not at all.  Below you’ll find the symptoms, causes, and price of a Audi A5 head gasket. Recognizing the signs of a blown head gasket in your … Read more

Audi-A5 Catalytic Converter: Price, Location, and Diagnosis

Your Audi A5 leaves the factory with a catalytic converter.  It can run into problems over the normal life of the vehicle, and is often accompanied by OBDII code P0420.  Below we’ll cover the location, price, and symptoms of a bad torque converter in your A5.   Menu: Catalytic Converter Price A5 Catalytic Converter Location … Read more

Audi A5 Bad Fuel Pressure Regulator: Symptoms, ID, How to Fix

One of the most common issues with any vehicle, including the Audi A5, is when it has fuel pressure regulator issues. A bad fuel pressure regulator can cause all sorts of problems. A bad fuel pressure regulator can cause various symptoms in your Audi A5, the most common being engine performance problems. This can result from either too … Read more

Audi A5 Troubleshooting: Shakes When Braking

  If you find your Audi A5‘s steering wheel shakes or vibrates when you press the brakes, it is almost always the brake rotors that are the cause of the problem.  There are plenty of other issues that can cause the steering wheel to wobble.  But, if your A5 is only shaking when braking, that’s … Read more

Audi A5 White Exhaust Smoke: Causes, Diagnosis, How to Fix

If you own a Audi A5, you may have noticed white exhaust smoke coming from your car on occasion. This can be concerning, and it’s essential to understand the possible causes behind this phenomenon to address the issue promptly and efficiently. Several factors can contribute to white smoke emanating from your car’s exhaust pipe, and … Read more

Audi A5 P0406:  EGR Sensor “A” → Circuit High

  P0406 is a generic OBDII Diagnostic code.  It deals with the signal coming from the EGR system.  In this case, it means that the signal coming from the EGR system is higher than the specified range  Since it is a generic code, it has the same meaning for the Audi A5 as it would … Read more

Audi A5 Troubleshooting:  Squeaky Brakes

  Your Audi A5‘s braking system is designed to handle thousands of miles of braking with no intervention from you.  When its brakes begin to squeak, they are telling you that they need some attention. The most typical cause of squeaky brakes are the brake pads themselves, but there are other issues that can cause … Read more