CARFIX

Audi A4 S4 (2003–2004)

The Audi A4 B6 (Typ 8E) embodies an era of refined German engineering that resonates with drivers seeking quality and performance. Its availability in sedan, Avant, and convertible formats offers a blend of versatility and style. This compact executive car not only delivers a comfortable ride but also features an impressive range of engine options, ensuring that there's the perfect fit for every driver. Understanding the potential issues these vehicles may encounter is key to ownership, particularly for buyers looking to invest in a reliable used model.

Parts for the Audi A4 S4

Known issues

Common issues include:
• Control Arm Wear: A very common issue. Listen for clunking noises from the suspension, especially over bumps.
• Electrical Niggles: Check all electric windows, lights, and systems. Faulty sensors can also trigger warning lights.
• Coolant Leaks: Keep an eye on coolant levels and check for leaks around the engine.
• Oil Leaks: Valve cover gaskets and other seals can degrade with age.

WOF tips

• Suspension: As above, worn control arm bushes are a common cause of WOF failure.
• Brakes: Ensure brakes are effective and balanced. Check for corrosion on brake lines.
• Lights: Headlight alignment is crucial for a WOF pass.
• Rust: Check under the car, particularly around the wheel arches and sills.

About the Audi A4 S4

The B6 A4 is renowned for its solid build quality and pleasing driving dynamics. With engine choices from efficient 1.6L petrol variants to a potent 3.0L V6, alongside economical 1.9L and 2.5L diesel options, it caters to diverse preferences. Owners, especially in New Zealand, have favored the Avant model for its practicality as a family wagon. However, like any vehicle of this age, it's important to be aware of common issues, such as control arm wear, electrical niggles, coolant and oil leaks. Addressing these concerns promptly can prevent costly repairs down the line. Regular servicing is recommended every 15,000km, particularly for oil changes, which are essential to maintaining engine health and longevity. The cooling system, specifically around 150,000km, requires attention—this includes inspecting the water pump, thermostat, and radiator hoses to ensure optimal performance. [Exploring our full range of parts for Cooling can keep your A4 running smoothly.] Furthermore, don’t forget to check on the brake system; consistently assessing components like pads and rotors during service can enhance safety and performance on the road. [For services related to braking, visit our Braking category for competitive pricing.] Preventive maintenance is key in navigating these common issues effectively, ensuring your A4 continues to deliver a satisfying driving experience for years to come.

Questions owners ask

What are the most common issues to look out for on a 2003-2004 Audi A4 B6 in New Zealand?
Owners of the Audi A4 B6 (2003-2004) often encounter control arm wear, leading to clunking noises from the suspension. Electrical niggles, such as faulty windows or warning lights from sensors, are also common. Keep an eye out for coolant leaks and oil leaks, particularly from valve cover gaskets, as these seals can degrade with age.
Where can I get replacement control arms or other suspension parts for my Audi A4 B6 (2003-2004) in NZ?
CARFIX stocks 330 SKUs for the Audi A4 B6 (2003-2004), including parts for suspension. You can find control arms and other suspension components in our Suspension & Steering category to address common wear issues.
What should I check on my Audi A4 B6 (2003-2004) to ensure it passes its WOF in New Zealand?
For your Audi A4 B6 (2003-2004) to pass its WOF, pay close attention to suspension, as worn control arm bushes are a frequent cause of failure. Ensure your brakes are effective and balanced, checking for corrosion on brake lines. Headlight alignment is crucial, and inspect under the car for rust, especially around wheel arches and sills.
How often should I service my 2003-2004 Audi A4, especially regarding oil changes?
Regular servicing is recommended every 15,000km for your Audi A4 B6 (2003-2004). Oil changes are particularly essential at this interval to maintain engine health and longevity, especially given the range of engine choices from 1.6L petrol to 3.0L V6 and diesel variants.
Are there specific cooling system components I should inspect on my Audi A4 B6 (2003-2004) around 150,000km?
Yes, around 150,000km, the cooling system of your Audi A4 B6 (2003-2004) requires attention. This includes inspecting the water pump, thermostat, and radiator hoses to ensure optimal performance and prevent potential coolant leaks. CARFIX offers a full range of parts for Cooling to keep your A4 running smoothly.
What are the common signs of control arm wear on an Audi A4 B6 (2003-2004)?
The most common sign of control arm wear on an Audi A4 B6 (2003-2004) is a clunking noise from the suspension, particularly noticeable when driving over bumps. This is a very common issue and should be addressed promptly.