Audi A5 P0101: Meaning, Causes, and Diagnosis

P0101 code in the Audi A5 is crucial to maintaining your truck’s performance and ensuring it runs efficiently. This code indicates that there is a problem with your car’s Mass Air Flow (MAF) sensor, specifically, a Range/Performance issue. The most common cause of P0101 is a bad MAF sensor. When you encounter the P0101 code, … Read more

Audi A5 P0174: Meaning, Causes, How to Fix

One of the most common trouble codes with the Audi A5 is P0174. It indicates that your Audi A5 is running lean on the bank two side of the engine.  P0174 and P0171 (fuel trim lean bank one) are the most frequently seen air/fuel mixture-related codes. If they appear together, it reduces the list of … Read more

Audi A5 P0021: OBDII Code Diagnosis

P0021 is a common trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Audi A5 can have VVT, and is prone to developing this code.     P0021 is a generic OBDII code. This means that it has the same definition regardless of the make … Read more

Audi A5 P0305: Misfire Detected (Cylinder 5)

P0305 is a fairly common trouble code with the Audi A5. It’s and OBD2 code and stands for: P0305 is certainly a cause for concern, and should be considered a threat to the drivability your A5. The nice thing about P0305 is that it’s a cylinder specific trouble code, which makes diagnosing the problems simpler … Read more

Audi A5 P0741 OBDII Transmission Code Diagnosis

P0741 is a very common OBDII trouble code. It’s know to affect the Audi A5 quite often. Here’s what it means: P0741: Torque Converter Clutch Circuit → Performance or Stuck Off The A5 uses a clutch in the torque converter to lock the engine and transmission together at highway speed. P0741 can register whenever this … Read more

Audi A5 P0172: Fuel System Rich – Bank 1

A common trouble code with the Audi A5 is P0172. This code number references a number given to you when you plug your car into an OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common. It means the motor is running rich. Audi A5 … Read more

Audi A5 P0171: Causes, Diagnosis, + How to Fix

One of the most common trouble codes with the Audi A5 is P0171. It indicates that your Audi A5 is running lean on the bank one side.  It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. The most … Read more

Audi A5 P0141 Diagnosis

P0141 is a very common OBDII code that occurs in the Audi A5. It is caused by a failure in one of the elements that heat the oxygen sensors, specifically bank 1 sensor 2, which is downstream from the catalytic converter. It technically stands for: The purpose of the heated element in the oxygen sensor … Read more

Audi A5 P0135: Heated 02 Sensor – Heating Element Failed

P0135 is a very common OBDII code that occurs in the Audi A5. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 1 sensor 1. It technically stands for:     The purpose of the heated element in the oxygen sensor is to quickly bring your O2 sensor … Read more

P0128 Audi A5: Meaning, Causes, How to Fix

The P0128 OBD II trouble code indicates that your Audi A5’s engine coolant temperature has not reached its required operating temperature within a certain amount of time after starting the car. This code can appear as soon as you start your vehicle, or it can also occur while driving. It’s essential to address this issue … Read more