Choosing the right battery for your Audi A3 II (8P) from the years 2003 to 2013 is crucial for the optimal performance and reliability of your car. This generation of the Audi A3, produced over a full decade, includes a wide range of petrol and diesel engines, with both traditional and Start-Stop system variants. The selection of a suitable battery depends primarily on your engine type, whether your vehicle features Start-Stop technology, and the required specifications such as battery capacity (Ah) and cold cranking amps (CCA). Let’s walk through the main considerations and options for this popular model, keeping in mind that the battery models mentioned are just examples of compatible choices and not an exhaustive list.
For standard petrol engines without Start-Stop, such as the 1.4 TFSI, 1.2 TSI, 1.6 (including E-Power and FSI), 1.8 T, 1.8 TFSI (including quattro), and 2.0 (including FSI and TFSI variants), the preferred batteries are traditional lead-acid types. These engines typically require batteries with a capacity around 60-65 Ah and a cold cranking amperage between 540 and 640 A. Example models that fit these specifications are the Bosch S40 05, Bosch S50 05, Exide EA640, and Varta D15, among others. For slightly smaller engines like the 1.4 TFSI without Start-Stop, the required battery capacity drops to about 50-58 Ah with a lower CCA, such as 420-540 A, and you can consider batteries like the Bosch S40 02 or Varta C22. These batteries are more than sufficient for the demands of standard ignition systems and electrical accessories found in these models.
If your Audi A3 II is equipped with Start-Stop technology, which became increasingly popular in later models to improve fuel efficiency and reduce emissions, you’ll need a more advanced AGM (Absorbent Glass Mat) battery. AGM batteries are specifically designed to handle the frequent start cycles that the Start-Stop system demands, as well as the higher power draw from modern car electronics. For engines like the 1.4 TFSI, 1.2 TSI, 1.6 TDI, and 2.0 TDI with Start-Stop, the ideal battery capacity ranges from 60 Ah for smaller petrol engines up to 72 Ah for larger or diesel engines, with cold cranking amperages from 640 up to 760 A. Some fitting examples include the Bosch S5A 05 and S5A 08, Exide EK600 or EK700, Varta D52, and Varta E39. Remember, using a standard lead-acid battery in place of AGM in a Start-Stop-equipped vehicle can lead to premature battery failure and potential malfunction of the Start-Stop system.
For powerful engines such as the S3 quattro or the 3.2 V6 quattro, and for diesel versions without Start-Stop like the 1.6 TDI and all 2.0 TDI (including 16V and quattro), a higher capacity lead-acid battery is recommended. These vehicles typically need batteries with 74-78 Ah of capacity and a robust 680-780 A CCA, to manage the higher demands during cold starts and for the extra onboard electronics. Again, models like Bosch S40 08, Exide EA770, Varta E11, and Varta E44 are suitable examples for these specifications.
It’s worth noting that battery technology has evolved considerably over the past two decades. AGM batteries, while more expensive, offer better resistance to deep discharge and vibration, which can be particularly beneficial if you often drive short distances or in harsh conditions. Another interesting fact: the battery’s performance can diminish by as much as 35% in cold weather, so if you live in a region with harsh winters, always opt for a battery with a higher CCA within your vehicle’s recommended range.
When selecting a battery, always check your car’s manual or the labels on your current battery for the exact specifications required. Modern Audi models often require the battery to be registered in the vehicle’s computer after replacement, especially for Start-Stop systems, so professional installation is advised. While the specific models mentioned, such as Bosch S5A 08 or Varta D52, are commonly recommended, always verify fitment for your particular engine and equipment level.
In summary, choosing the right battery for your Audi A3 II (8P) involves considering engine size, presence of Start-Stop technology, and the required capacity and CCA. Whether you select a lead-acid or AGM battery, ensure it matches your car’s needs and is from a reputable brand. A well-chosen battery will not only provide reliable starting power but also protect your vehicle’s electrical systems, ensuring you enjoy your Audi with peace of mind for many years to come.
Audi A3 in version II (8P) was produced in the years 2003 – 2013. Below we present the specifications of batteries suitable for specific engines.
Basic parameters of batteries suitable for Audi A3 (2003-2013):
| Layout | Terminal types | Base hold-down |
|---|---|---|
| 0 – positive on the right side | 1 | B13 |
Audi A3 II (8P) – petrol engines:
- 1.4 TFSI
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S4 S40 02 | 52 Ah 470 A | 207x175x190 mm | More |
| Bosch S5 S50 02 | 54 Ah 530 A | 207x175x190 mm | More |
| Exide Excell EB500 | 50 Ah 450 A | 207x175x190 mm | More |
| Exide Premium EA530 | 53 Ah 540 A | 207x175x190 mm | More |
| Halfords Standard HCB 012 | 52 Ah 450 A | 207x175x190 mm | More |
| Lucas Premium LP079 | 50 Ah 420 A | 210x175x190 mm | More |
| Lucas Supreme LS012 | 58 Ah 520 A | 210x175x190 mm | More |
| Varta Blue Dynamic C22 | 52 Ah 470 A | 207x175x190 mm | More |
| Varta Silver Dynamic C30 | 54 Ah 530 A | 207x175x190 mm | More |
Audi A3 II (8P) – petrol engines:
- 1.2 TSI
- 1.6
- 1.6 E-Power
- 1.6 FSI
- 1.8 T
- 1.8 TFSI
- 1.8 TFSI quattro
- 2.0
- 2.0 FSI
- 2.0 TFSI
- 2.0 TFSI quattro
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S4 S40 05 | 60 Ah 540 A | 242x175x190 mm | More |
| Bosch S5 S50 05 | 63 Ah 610 A | 242x175x190 mm | More |
| Exide Excell EB620 | 62 Ah 540 A | 242x175x190 mm | More |
| Exide Premium EA640 | 64 Ah 640 A | 242x175x190 mm | More |
| Halfords Standard HCB 027 | 62 Ah 550 A | 242x175x190 mm | More |
| Lucas Premium LP027 | 60 Ah 540 A | 243x175x190 mm | More |
| Lucas Supreme LS027 | 65 Ah 640 A | 242x175x190 mm | More |
| Varta Blue Dynamic D24 | 60 Ah 540 A | 242x175x190 mm | More |
| Varta Silver Dynamic D15 | 63 Ah 610 A | 242x175x190 mm | More |
Audi A3 II (8P) – petrol engines:
- 1.4 TFSI – with Start-Stop
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S5 AGM S5A 05 | 60 Ah 680 A | 242x175x190 mm | More |
| Exide AGM EK600 | 60 Ah 680 A | 242x175x190 mm | More |
| Exide AGM EK620 | 62 Ah 680 A | 242x175x190 mm | More |
| Halfords Advanced AGM 027 | 60 Ah 640 A | 243x175x190 mm | More |
| Lucas Fusion AGM LF027 | 60 Ah 680 A | 242x175x190 mm | More |
| Varta Silver Dynamic AGM D52 | 60 Ah 680 A | 242x175x190 mm | More |
Audi A3 II (8P) – petrol engines:
- 3.2 V6 quattro
- S3 quattro
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S4 S40 08 | 74 Ah 680 A | 278x175x190 mm | More |
| Bosch S5 S50 08 | 77 Ah 780 A | 278x175x190 mm | More |
| Exide Excell EB740 | 74 Ah 680 A | 278x175x190 mm | More |
| Exide Premium EA770 | 77 Ah 760 A | 278x175x190 mm | More |
| Halfords Standard HCB 096 | 76 Ah 680 A | 278x175x190 mm | More |
| Lucas Premium LP096 | 75 Ah 680 A | 278x175x190 mm | More |
| Lucas Supreme LS096 | 78 Ah 780 A | 278x175x190 mm | More |
| Varta Blue Dynamic E11 | 74 Ah 680 A | 278x175x190 mm | More |
| Varta Silver Dynamic E44 | 77 Ah 780 A | 278x175x190 mm | More |
Audi A3 II (8P) – petrol engines:
- 1.2 TSI – with Start-Stop
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S5 AGM S5A 08 | 70 Ah 760 A | 278x175x190 mm | More |
| Exide AGM EK700 | 70 Ah 760 A | 278x175x190 mm | More |
| Exide AGM EK720 | 72 Ah 760 A | 278x175x190 mm | More |
| Halfords Advanced AGM 096 | 70 Ah 760 A | 278x175x190 mm | More |
| Halfords Standard AGM 096 | 70 Ah 720 A | 278x175x190 mm | More |
| Lucas Fusion AGM LF096 | 70 Ah 760 A | 278x175x190 mm | More |
| Varta Silver Dynamic AGM E39 | 70 Ah 760 A | 278x175x190 mm | More |
Audi A3 II (8P) – diesel engines:
- 1.6 TDI
- 1.9 TDI
- 2.0 TDI
- 2.0 TDI 16V
- 2.0 TDI 16V quattro
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S4 S40 08 | 74 Ah 680 A | 278x175x190 mm | More |
| Bosch S5 S50 08 | 77 Ah 780 A | 278x175x190 mm | More |
| Exide Excell EB740 | 74 Ah 680 A | 278x175x190 mm | More |
| Exide Premium EA770 | 77 Ah 760 A | 278x175x190 mm | More |
| Halfords Standard HCB 096 | 76 Ah 680 A | 278x175x190 mm | More |
| Lucas Premium LP096 | 75 Ah 680 A | 278x175x190 mm | More |
| Lucas Supreme LS096 | 78 Ah 780 A | 278x175x190 mm | More |
| Varta Blue Dynamic E11 | 74 Ah 680 A | 278x175x190 mm | More |
| Varta Silver Dynamic E44 | 77 Ah 780 A | 278x175x190 mm | More |
Audi A3 II (8P) – diesel engines:
- 1.6 TDI – with Start-Stop
- 2.0 TDI – with Start-Stop
- 2.0 TDI 16V – with Start-Stop
- 2.0 TDI 16V quattro – with Start-Stop
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S5 AGM S5A 08 | 70 Ah 760 A | 278x175x190 mm | More |
| Exide AGM EK700 | 70 Ah 760 A | 278x175x190 mm | More |
| Exide AGM EK720 | 72 Ah 760 A | 278x175x190 mm | More |
| Halfords Advanced AGM 096 | 70 Ah 760 A | 278x175x190 mm | More |
| Halfords Standard AGM 096 | 70 Ah 720 A | 278x175x190 mm | More |
| Lucas Fusion AGM LF096 | 70 Ah 760 A | 278x175x190 mm | More |
| Varta Silver Dynamic AGM E39 | 70 Ah 760 A | 278x175x190 mm | More |
If you’re still unsure which battery fits your Audi A3 , or if you want to help others in their selection, please send us a photo of your current battery in the comment section at the bottom of the page. You can also send the picture to contact@whatbattery.co.uk (we will place it in the comments to also help other users). Be sure to specify the car model, year, type, as well as the engine capacity and power. We’ll do our best to assist you!