* 5W-40 - This is the recommended oil for most 2003 Audi A4 models. It is a synthetic blend oil that provides good protection for your engine in all weather conditions.
* 10W-30 - This is a good alternative to 5W-40 if you live in a warm climate. It is a conventional oil that is less expensive than synthetic blend oils.
* 10W-40 - This is a good choice for older 2003 Audi A4 models. It is a conventional oil that provides good protection for your engine in all weather conditions.
Transmission Fluid
* Audi Genuine Automatic Transmission Fluid - This is the only recommended fluid for Audi A4 models with automatic transmissions. It is a high-quality fluid that provides excellent lubrication and protection for your transmission.
* Mobil 1 Synthetic ATF - This is a good alternative to Audi Genuine Automatic Transmission Fluid. It is a synthetic fluid that provides excellent lubrication and protection for your transmission.
Power Steering Fluid
* Pentosin CHF 11S Power Steering Fluid - This is the recommended fluid for Audi A4 models with power steering. It is a high-quality fluid that provides excellent lubrication and protection for your power steering system.
* Valvoline Dexron VI Power Steering Fluid - This is a good alternative to Pentosin CHF 11S Power Steering Fluid. It is a synthetic fluid that provides excellent lubrication and protection for your power steering system.
Brake Fluid
* Audi Genuine Brake Fluid - This is the recommended fluid for Audi A4 models with disc brakes. It is a high-quality fluid that provides excellent stopping power and protection for your brake system.
* Motul 600 DOT 4 Brake Fluid - This is a good alternative to Audi Genuine Brake Fluid. It is a synthetic fluid that provides excellent stopping power and protection for your brake system.
