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Audi A4 T (2002–2004)

Introducing the Audi A4 (B6), produced between 2002 and 2004, a landmark vehicle in Audi's history that exemplifies the perfect balance between luxury and performance. With its sleek design and advanced technology, the B6 has secured a place in the hearts of New Zealand drivers looking for a premium experience on the road. This model not only reinforced Audi’s reputation in the luxury automotive sector but also offered a unique combination of craftsmanship and engineering that enthusiasts continue to celebrate.

Parts for the Audi A4 T

Known issues

Common issues with the B6 A4 include:
• Timing Belt: Crucial to replace at the specified interval to prevent catastrophic engine damage.
• Oil Leaks: Especially from the valve cover gasket and camshaft seals.
• Suspension Components: Bushings and control arms can wear out, leading to knocking noises and poor handling.
• Electrical Problems: Sensors and control modules can fail with age.
• Cooling System: Thermostat housings and water pumps can develop leaks.

WOF tips

When getting a WOF for your B6 A4, pay close attention to these areas:
• Lights: Ensure all lights are functioning correctly, including headlights, taillights, brake lights, and indicators.
• Tyres: Check tread depth and condition. Uneven wear can indicate suspension problems.
• Brakes: Inspect brake pads, rotors, and hoses. Listen for squealing or grinding noises.
• Suspension: Check for worn bushings, ball joints, and shock absorbers. Excess play can result in a WOF failure.
• Exhaust: Ensure there are no leaks and the exhaust system is securely mounted.
• Windscreen: Any cracks or chips within the swept area of the wipers will likely cause it to fail.

About the Audi A4 T

The B6 A4 features a variety of engines, ranging from the economical 1.8T petrol to the robust V6 variants, catering to different driving preferences. Models equipped with Quattro all-wheel-drive enhance traction and stability, appealing to those who navigate diverse terrains. Inside, the A4 boasts a meticulously crafted cabin designed for comfort and style, with excellent ergonomics that enhance the driving experience. However, it's worth noting that some of these advanced systems may require attention as they age. Common issues include oil leaks, particularly from the valve cover gasket, and wear on suspension components like bushings and control arms, which can lead to uncomfortable handling.

To avoid major pitfalls, regular maintenance is critical. The timing belt must be replaced according to Audi's specified intervals to prevent serious engine damage. Furthermore, the cooling system tends to require attention around 150,000km, making it essential to inspect parts like the water pump, thermostat, and radiator hoses. These preventative measures not only ensure continued performance but also preserve the vehicle's integrity. Resources are readily available through our cooling category [link to /shop/cooling], making it easier for B6 A4 owners to maintain their prized possession. If you're in need of brake maintenance, our brake service packs address front and rear components effectively, ensuring safe driving without compromising the quality that defines your Audi.

Questions owners ask

What are some common problems I should watch out for with my 2002-2004 Audi A4 (B6)?
Common issues with the B6 A4 include oil leaks (especially from the valve cover gasket), worn suspension components like bushings and control arms, electrical problems with sensors and control modules, and cooling system leaks from the thermostat housing or water pump. The timing belt is also a critical item to maintain and replace at the specified interval to prevent engine damage.
How often should I replace the timing belt on my Audi A4 B6?
The timing belt on your B6 A4 must be replaced at the interval specified by Audi to prevent catastrophic engine damage. Consult your owner's manual or a qualified mechanic for the specific interval for your engine type. Neglecting this can lead to very expensive repairs.
My Audi A4 B6's suspension feels loose and I hear knocking noises. What could be the problem?
Worn suspension components, such as bushings and control arms, are a common issue on the B6 A4. These can cause knocking noises and poor handling. Have a mechanic inspect your suspension for wear and replace any worn parts. Uneven tyre wear can also be an indicator of suspension issues.
Where can I get replacement parts for my 2002-2004 Audi A4 in New Zealand?
CARFIX stocks over 424 SKUs for the 2002-2004 Audi A4 (B6), including brake service packs, cooling system components (available in our cooling category at /shop/cooling), suspension parts, and more. We have 24 DIY guides available to help you with your repairs.
What should I check on my Audi A4 (B6) to make sure it passes its WOF?
For your WOF, make sure all lights are functioning correctly, including headlights, taillights, brake lights, and indicators. Check your tyre tread depth and condition, and inspect your brakes for wear and noises. Suspension components like bushings and ball joints should be checked for excessive play. Also, ensure there are no exhaust leaks and that your windscreen is free of cracks or chips in the wiper swept area.
My Audi A4 B6 is leaking oil. Where are the most common leak points?
The most common oil leak points on the B6 A4 are the valve cover gasket and camshaft seals. These gaskets can dry out and crack over time, leading to leaks. Regular inspection and replacement of these gaskets can prevent more serious problems.
At what mileage should I start paying close attention to the cooling system on my Audi A4 B6?
The cooling system on the B6 A4 tends to require attention around 150,000km. It's essential to inspect parts like the water pump, thermostat, and radiator hoses for leaks or signs of wear. Preventative maintenance can help avoid overheating and costly repairs.