Common Audi Faults We Frequently Encounter

At Prestige and Performance, we take pride in our deep understanding of European cars, particularly Audi models. Over the years, we’ve identified a range of common issues that often arise in these high-performance vehicles. If your Audi is experiencing any of these faults, our expert team is here to provide precise diagnostics and dependable solutions. 

1. Timing Chain & Tensioner Failure

Unusual engine noises, such as rattling or ticking, especially at startup or while driving, can be a sign of timing chain and tensioner wear. Left unchecked, this can lead to poor engine performance.
Most commonly found in:
Audi A4, A5, Q5, and TT models with 2.0 TFSI engines (engine codes: CAEB, CCTA, CBFA)

2. High-Pressure Fuel Pump Failure

A malfunctioning fuel pump can cause engine misfires, hesitation during acceleration, and a loss of power.
Frequently observed in:
Audi A3, A4, A6, and TT models with 2.0 TFSI engines (engine codes: CAEB, CCTA, CBFA)

3. Carbon Build-Up in the Intake System

Carbon deposits can accumulate in the intake valves, causing rough idling, reduced engine performance, and even misfires.
Commonly seen in:
Audi A4, A5, A6, and Q5 models with direct injection engines (2.0 TFSI, 3.2 FSI engines; engine codes: CAEB, CCTA, CBFA)

4. Oil Leaks from PCV Valve

Oil leaks due to a faulty Positive Crankcase Ventilation (PCV) system can lead to low oil levels and poor engine lubrication.
Typically seen in:
Audi A4, A5, Q5, and TT with 2.0 TFSI engines (engine codes: CAEB, CCTA, CBFA) and A6, A8 models with 3.2 FSI and 4.2 FSI engines (engine codes: BKH, BAR)

5. DSG Transmission Issues

Delayed gear shifts and jerky transitions are common signs of DSG transmission failure, often resulting from wear and tear or software issues.
Found in:
Audi A3 and TT with S-Tronic (DSG) transmissions, particularly with 2.0 TFSI (engine codes: CAEB, CCTA, CBFA) and TDI engines. Common DSG types: 6-speed DQ250, 7-speed DQ500

6. EGR Valve Failure

Exhaust Gas Recirculation (EGR) valve issues can affect engine performance and emissions, often triggering warning lights.
Often found in:
Audi A3, A4, and Q5 with 2.0L TDI engines (engine codes: CBEA, CJAA)

7. Excessive Oil Consumption

Certain Audi engines, especially TFSI and TDI variants, may experience higher-than-normal oil consumption due to inherent design flaws.
Typically observed in:
Audi A4, A5, A6, Q3, Q5 (2.0 TFSI engines; engine codes: CCTA, CBFA) and 2.0L TDI engines (CBEA, CJAA)

8. Water Pump Failures

A faulty water pump can cause the cooling system to malfunction, potentially leading to engine overheating and damage.
Common in:
Audi A4, A5, A6, Q3, Q5, and TT with 2.0L TFSI and 3.2 FSI engines (engine codes: CCTA, CBFA)

Audi Specialists You Can Rely On

This list represents just a portion of the Audi issues we address at Prestige and Performance. Whether your vehicle is showing symptoms of any of the problems listed here or experiencing other challenges, our team has the expertise and tools to deliver swift, reliable repairs.

Experiencing an issue with your Audi? Contact us today to book a diagnostic and ensure your vehicle runs smoothly for years to come.