Audi A4 Parts

Since its debut in 1994, the Audi A4 has been one of the most popular and refined compact executive cars on the market. Known for its balance of luxury, performance and everyday usability, the A4 delivers a smooth driving experience with strong engineering across both petrol and diesel engines.

At Run Auto Parts, we supply high-quality OEM and OE-equivalent parts for every A4 generation — from the classic B5 to the latest B9 turbo and quattro models. Use our Shop by Vehicle tool to browse only the parts that match your exact chassis and engine code.

Audi A4 Generations & Popular Models

• B5 (1994–2001): 1.8T, 2.8 Quattro, S4
• B6 (2000–2006): 1.8T, 2.0 FSI, 3.0 Quattro, S4
• B7 (2004–2008): 2.0 TFSI, 2.0 TDI, 3.2 FSI, RS4
• B8 (2008–2016): 1.8 TFSI, 2.0 TDI, 2.0 TFSI, 3.0 TFSI, S4
• B9 (2016–present): 2.0 TFSI, 2.0 TDI, 3.0 TFSI Quattro, S4

Each generation introduced improvements in handling, interior quality, safety and technology. Whether you're maintaining an early B5, a high-revving B7 RS4, or a modern B9 quattro, we offer premium parts from trusted European brands such as Bosch, Mann-Filter, Mahle, ZF, Brembo, Bilstein, Lemförder and more.

Popular A4 Replacement Parts

• Oil, air & cabin filters (Mann-Filter, Mahle)
• Spark plugs, coils & sensors (Bosch, NGK/NTK)
• Brake pads, rotors & wear sensors (Brembo, Bosch, ZF)
• Control arms, bushings & suspension components (Lemförder, Bilstein)
• Drive belts, tensioners & pulleys (INA, Gates)
• Wiper blades, lighting & batteries (Bosch, Philips)

Keep Your Audi A4 Performing Its Best

The A4 is engineered for longevity, and using quality parts helps maintain its performance, comfort and reliability. Browse our full range using the Shop by Vehicle selector, or contact our team if you need help finding the right part for your chassis or engine.