CARFIX

Audi A4 T (2001–2004)

Introducing the Audi A4 (B6), produced from 2001 to 2004—where sophistication meets performance. This model has captivated drivers across New Zealand, offering a premium driving experience without the premium price tag associated with newer vehicles. While it boasts classic Audi styling and a well-crafted interior, potential buyers need to be aware of certain quirks to keep their beloved A4 running smoothly. Our guide will help you navigate common issues and maintain your A4 effectively, ensuring it remains a joy to drive for years to come.

Parts for the Audi A4 T

Known issues

Common issues with the B6 A4 include:
• Timing Belt: Critical maintenance item, often neglected. If not replaced at the correct interval (typically every 90,000-120,000km), it can lead to catastrophic engine damage.
• Oil Leaks: These are common, especially around the valve cover gasket and crankshaft seal.
• Suspension Components: The front control arms and bushings are prone to wear, leading to knocking noises and poor handling.
• Electrical Problems: Issues with the central locking, windows, and climate control can occur.
• Coolant Leaks: Plastic coolant flanges become brittle with age

WOF tips

During a WOF inspection, pay close attention to the following:
• Brakes: Check brake pad thickness, disc condition, and brake line integrity.
• Suspension: Inspect for worn ball joints, bushings, and strut condition.
• Lights: Ensure all lights are functioning correctly.
• Tyres: Check for adequate tread depth and any signs of damage.
• Rust: Inspect the body for rust, especially around the wheel arches and underneath the car.

About the Audi A4 T

The A4 B6 presents an impressive range of engine options, including efficient petrol variants from the 1.8T to the robust 3.0 V6, alongside the economical 1.9 TDI diesel engines. If you own this model, keep in mind the critical nature of the timing belt—failure to replace it between 90,000 and 120,000km can lead to significant engine damage. Additionally, oil leaks are frequently observed around the valve cover gasket and crankshaft seal, which should be inspected during regular services.

When it comes to maintenance, the cooling system requires attention around 150,000km—be vigilant about the water pump, thermostat, and radiator hoses as they may need replacement. This is vital for the longevity of your engine, making our [Cooling product category] a lifesaver. Likewise, suspension components such as front control arms and bushings can wear out, impacting ride quality and handling. Our [Suspension services] provide a comprehensive solution to these issues. With well-optioned electrical systems, be aware that central locking and climate control may present problems; ensure these systems are regularly checked. Equip your A4 with the appropriate parts from our [Filtration and Electrical categories], and keep its driving dynamics sharp.

Questions owners ask

What are the common problems I should look out for on a 2001-2004 Audi A4 (B6)?
Common issues on the Audi A4 B6 include timing belt failure (replace every 90,000-120,000km to avoid engine damage), oil leaks from the valve cover gasket and crankshaft seal, worn suspension components like front control arms and bushings, electrical problems with central locking and climate control, and coolant leaks from brittle plastic flanges.
How often should I replace the timing belt on my Audi A4 B6?
The timing belt on the Audi A4 B6 should be replaced every 90,000 to 120,000 km. Failure to do so can result in significant engine damage. This is a critical maintenance item for this model.
Where can I get replacement suspension parts for my 2001-2004 Audi A4 in New Zealand?
CARFIX stocks a range of suspension components for the Audi A4 B6, including front control arms and bushings. Check our Suspension services category for parts to improve your A4's ride quality and handling.
What should I check on my Audi A4 (2001-2004) to pass a WOF in NZ?
For a WOF inspection, ensure your Audi A4 B6 has adequate brake pad thickness and disc condition, no worn suspension ball joints or bushings, all lights functioning correctly, sufficient tyre tread depth, and minimal rust, especially around wheel arches and underneath the car.
My Audi A4 B6 is leaking oil. Where are the most common leak points?
Oil leaks are common on the Audi A4 B6, particularly around the valve cover gasket and the crankshaft seal. Inspect these areas regularly and replace gaskets as needed to prevent oil loss and potential engine damage.
Are there any common electrical issues with the Audi A4 B6?
Yes, the Audi A4 B6 can experience electrical problems, particularly with the central locking system, windows, and climate control. Regular checks of these systems are recommended.
I need a new water pump for my 2003 Audi A4. Where can I find one in NZ?
CARFIX stocks water pumps for the Audi A4 B6. You can find them in our Cooling product category, along with other cooling system components like thermostats and radiator hoses.