Battery Guide: Audi
Best Battery for Audi A4
Complete guide to battery sizes, specifications, and replacement advice for the Audi A4 range.
Expert Analysis
The **Audi A4** is a sophisticated vehicle that often relies on AGM (Absorbent Glass Mat) technology to support its Start/Stop system. Choosing the wrong battery technology for this model can lead to premature failure and disablement of eco-features.
📍 Battery Location
🔋 Check Terminals
Positive (+) on RIGHT
Most European vehicles use this layout. Ensure the Red cable reaches the + terminal.
Which version do you drive?
Audi A4 (diesel)
For the **diesel** models (2008+), Executive commuter. High load. **Crucially, this vehicle requires battery registration (BMS coding)** after replacement to ensure the alternator charges the new unit correctly.
Not sure which one is yours?
Use our specific Fitment Tool to enter your exact registration year and engine type for a 100% accurate match.
Launch Fitment Tool