Selecting the correct battery for the Audi A3 II (8P) Sportback produced between 2004 and 2013 requires a close look at engine type, presence of Start-Stop functionality, and electrical demands. The wide range of petrol and diesel variants, including performance models like the S3 and RS3, means that battery needs can vary considerably. All of these vehicles rely on either traditional lead-acid or AGM batteries depending on the engine configuration and technology onboard. Choosing the correct one ensures reliable starts, proper power supply to all electronic systems, and long service life.
For most petrol engines without Start-Stop systems—such as the 1.2 TSI, 1.4 TFSI, and 1.6 FSI—the required battery capacity falls between 50 and 65 Ah, with cold cranking amperage ranging from 420 to 640 A. These engines are relatively light on battery demands and function well with standard lead-acid batteries. Examples of suitable models include Bosch S40 02, Exide EA530, Lucas LP079, and Varta C22 for the lower-capacity variants, while higher-capacity options like Bosch S50 05, Exide EA640, and Varta D15 are better matched with the 1.6 and 2.0-liter petrol engines. These are just example models and should be cross-checked with the vehicle’s original battery size and specifications.
Vehicles with Start-Stop systems, including some versions of the 1.2 TSI and 2.0 TDI, require AGM batteries due to their higher cycle life and improved tolerance for repeated starting. In these cases, the recommended battery capacity is around 70 to 72 Ah, and the cold cranking amperage should be between 720 and 760 A. Examples of AGM batteries that match these requirements include Bosch S5A 08, Exide EK700, Lucas LF096, and Varta E39. Installing a standard lead-acid battery in a car equipped with Start-Stop technology may lead to premature failure and electronic issues.
Diesel versions without Start-Stop—such as the 1.9 TDI, 2.0 TDI, and 2.0 TDI quattro—require slightly larger batteries due to the higher starting power needed in cold weather and the engine’s compression characteristics. These typically use 74–78 Ah batteries with cold cranking amperage between 680 and 780 A. Suitable lead-acid examples include Bosch S40 08, Exide EA770, Lucas LP096, and Varta E11. Choosing a high-quality battery with sufficient reserve capacity is especially important if the car is used in colder climates or for long commutes.
Performance models like the RS3 quattro present even more demanding electrical profiles. The RS3 requires an AGM battery with a capacity of 80–82 Ah and a cold cranking amperage of up to 800 A. These vehicles are equipped with a higher number of electronic systems, including performance tuning modules, dynamic lighting, and advanced infotainment units, all of which benefit from a stable power supply. Example batteries for the RS3 include Bosch S5A 11, Exide EK800, and Varta F21. Again, these are examples and compatibility should be confirmed with your vehicle’s specifications.
A fun fact for Audi enthusiasts is that the A3 II shares its platform with the Volkswagen Golf V and Seat Leon II, meaning many battery specifications are similar across the group. However, trim levels, optional equipment, and engine tuning can change the power requirements. That’s why it’s always best to verify your battery choice not only by capacity and current but also by the dimensions, terminal layout, and mounting type.
In summary, selecting the correct battery for the Audi A3 II (8P) Sportback depends on a combination of factors, including whether the car uses Start-Stop, the engine size, and the power demand of its accessories. Lead-acid batteries suit most models, while AGM options are necessary for those with Start-Stop systems or higher performance variants. Picking a battery that aligns with the manufacturer’s specifications ensures not only optimal engine starting but also the longevity of the car’s electronic systems.
Audi A3 in version II (8P) Sportback was produced in the years 2004 – 2013. The following table presents information about batteries that match each of the engines available on the market.
Basic parameters of batteries suitable for Audi A3 (2004-2013):
| Layout | Terminal types | Base hold-down |
|---|---|---|
| 0 – positive on the right side | 1 | B13 |
Audi A3 II (8P) Sportback – petrol engines:
- 1.2 TSI
- 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 |
For the Audi A3 II (8P) Sportback produced from 2004 to 2013 with the 1.2 TSI and 1.4 TFSI petrol engines, both without the Start-Stop system, it is important to choose a battery that matches the specific requirements of these engine variants. These models typically use standard lead-acid batteries, as the absence of the Start-Stop system means they do not require more advanced AGM or EFB technologies. The batteries suitable for these engines should have appropriate capacity and cold cranking power to ensure reliable operation, especially in varied climate conditions.
The recommended group of batteries for the 1.2 TSI and 1.4 TFSI engines includes models from reputable brands such as Bosch, Varta, Exide, Halfords, and Lucas. These batteries have a capacity range between 50 and 58 Ah and a cold cranking amperage (CCA) between 420 and 540 A, which is ideal for the power demands of these engines. All batteries in this group share similar physical dimensions, with a length of approximately 207 to 210 mm, a width of 175 mm, and a height of 190 mm, ensuring a proper fit in the battery compartment. They feature a polarity layout of 0 (positive terminal on the right) and terminal type 1 (standard round posts), which matches the original equipment specification for the Audi A3 II.
When selecting a replacement battery for your Audi A3 II with 1.2 TSI or 1.4 TFSI engine, you can consider options such as Bosch S4 S40 02, Bosch S5 S50 02, Varta Blue Dynamic C22, Varta Silver Dynamic C30, Exide Premium EA530, Exide Excell EB500, Halfords Standard HCB 012, Lucas Supreme LS012, or Lucas Premium LP079. All of these batteries have a standard B13 hold-down for secure mounting and are designed for standard installation, making them a direct and reliable replacement for the original battery in these engine types.
Audi A3 II (8P) Sportback – petrol engines:
- 1.6
- 1.6 E-Power
- 1.6 FSI
- 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 |
For Audi A3 II (8P) Sportback models equipped with petrol engines such as the 1.6 (including the standard, E-Power, and FSI variants), 1.8 TFSI (including quattro), and 2.0 (standard, FSI, TFSI, and TFSI quattro), all without the Start-Stop system, battery requirements are slightly higher compared to the smaller engine options. These engines, while not requiring advanced Start-Stop compatible batteries, do benefit from increased capacity and cold cranking performance to ensure reliable starting and electrical stability, particularly during colder months or periods of extended use of electrical accessories.
For these engine variants, the recommended battery group comprises leading brands such as Bosch, Varta, Exide, Halfords, and Lucas, offering models like Bosch S4 S40 05, Bosch S5 S50 05, Varta Blue Dynamic D24, Varta Silver Dynamic D15, Exide Premium EA640, Exide Excell EB620, Halfords Standard HCB 027, Lucas Supreme LS027, and Lucas Premium LP027. These batteries have capacities ranging from 60 to 65 Ah and cold cranking amperage (CCA) from 540 to 640 A, providing the necessary power reserves for engines with higher displacement and more robust electrical demands. The dimensions of these batteries—about 242 mm in length, 175 mm in width, and 190 mm in height—perfectly match the battery tray of the A3 II, ensuring straightforward installation and secure fitment.
Audi A3 II (8P) Sportback – 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 |
For Audi A3 II (8P) Sportback models fitted with the high-performance 3.2 V6 quattro and S3 quattro petrol engines—both without the Start-Stop system—selecting the correct battery is crucial due to the increased power demands and advanced electrical systems characteristic of these variants. These engines require batteries with higher capacity and cold cranking amperage (CCA) to ensure reliable starting and consistent operation of all onboard electronics, especially in challenging weather conditions or during moments of peak electrical consumption.
The recommended battery group for the 3.2 V6 quattro and S3 quattro engines includes options from trusted manufacturers such as Bosch, Varta, Exide, Halfords, and Lucas. Suitable models are Bosch S4 S40 08, Bosch S5 S50 08, Varta Blue Dynamic E11, Varta Silver Dynamic E44, Exide Premium EA770, Exide Excell EB740, Halfords Standard HCB 096, Lucas Supreme LS096, and Lucas Premium LP096. These batteries feature capacities ranging from 74 to 78 Ah and offer a high CCA between 680 and 780 A, providing the power reserves necessary for quick starts and stable voltage supply to all vehicle systems.
Audi A3 II (8P) Sportback – 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 |
For Audi A3 II (8P) Sportback models equipped with the 1.2 TSI petrol engine featuring the Start-Stop system, it is essential to use batteries that are specifically designed to handle frequent engine starts and the higher cyclic demands associated with this technology. Unlike standard lead-acid batteries, these engines require advanced AGM (Absorbent Glass Mat) batteries, which provide superior durability, faster recharge rates, and better resistance to deep discharge—key characteristics for vehicles with Start-Stop functionality.
The most suitable battery options for the 1.2 TSI Start-Stop engine come from reputable manufacturers such as Bosch, Varta, Exide, Halfords, and Lucas. Recommended models include the Bosch S5 AGM S5A 08, Varta Silver Dynamic AGM E39, Exide AGM EK700 and EK720, Halfords Advanced AGM 096 and Standard AGM 096, as well as the Lucas Fusion AGM LF096. These batteries offer a capacity of 70 to 72 Ah and a cold cranking amperage (CCA) of 720 to 760 A, providing the necessary power reserves and reliability for repeated engine starts and stable operation of the vehicle’s electrical systems.
All batteries in this group feature standardized external dimensions—278 mm in length, 175 mm in width, and 190 mm in height—ensuring an exact fit within the battery compartment of the Audi A3 II (8P) Sportback. They are equipped with a polarity layout of 0 (positive terminal on the right), standard terminal type 1 (round posts), and a B13 hold-down system, matching the original equipment specifications for Start-Stop engine variants. Selecting an AGM battery from this group guarantees not only compatibility and secure mounting but also the long-term performance and reliability expected in Start-Stop enabled vehicles, such as the 1.2 TSI variant of the Audi A3 II.
Audi A3 II (8P) Sportback – petrol engines:
- RS3 quattro
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S5 AGM S5A 11 | 80 Ah 800 A | 315x175x190 mm | More |
| Exide AGM EK800 | 80 Ah 800 A | 315x175x190 mm | More |
| Exide AGM EK820 | 82 Ah 800 A | 315x175x190 mm | More |
| Halfords Advanced AGM 115 | 80 Ah 800 A | 317x175x190 mm | More |
| Lucas Fusion AGM LF115 | 80 Ah 800 A | 315x175x190 mm | More |
| Varta Silver Dynamic AGM F21 | 80 Ah 800 A | 315x175x190 mm | More |
For the Audi A3 II (8P) Sportback equipped with the high-performance RS3 quattro petrol engine, which does not feature the Start-Stop system, battery requirements are even more demanding due to the engine’s significant power output and the advanced electrical systems supporting performance and comfort functions. These engines require batteries with excellent starting capacity, high reserve power, and robust durability to ensure dependable operation under all driving conditions, including both daily use and spirited driving scenarios.
The ideal battery group for the RS3 quattro consists of advanced AGM (Absorbent Glass Mat) batteries from leading manufacturers such as Bosch, Varta, Exide, Lucas, and Halfords. Examples include the Bosch S5 AGM S5A 11, Varta Silver Dynamic AGM F21, Exide AGM EK800 and EK820, Lucas Fusion AGM LF115, and Halfords Advanced AGM 115. These batteries all offer a high capacity of 80 to 82 Ah and deliver a cold cranking amperage (CCA) of 800 A, providing the strong starting power necessary for the RS3’s turbocharged engine and supporting the onboard electronics during high electrical load situations.
Physical dimensions for all batteries in this group are 315-317 mm in length, 175 mm in width, and 190 mm in height, ensuring a perfect fit within the dedicated battery compartment of the RS3 quattro. They feature a polarity layout of 0 (positive terminal on the right), standard terminal type 1 (round posts), and utilize the B13 hold-down system, which matches the original equipment mounting specifications. Selecting an AGM battery from this group ensures optimal compatibility, maximum reliability, and long service life, maintaining the performance and electrical stability expected from the RS3 quattro variant of the Audi A3 II (8P) Sportback.
Audi A3 II (8P) Sportback – 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 |
For Audi A3 II (8P) Sportback models equipped with the 1.6 TDI, 1.9 TDI, 2.0 TDI, 2.0 TDI 16V, and 2.0 TDI 16V quattro diesel engines—none of which feature the Start-Stop system—the selection of a suitable battery focuses on robust starting performance and reliable operation in a variety of driving and climate conditions. These diesel engines, known for higher compression ratios and increased power draw during cold starts, require batteries with greater capacity and higher cold cranking amperage (CCA) than their petrol counterparts. As these variants do not utilize Start-Stop technology, advanced AGM or EFB batteries are not necessary; however, a high-quality standard lead-acid battery is crucial for long-term durability and performance.
The recommended battery group for these TDI engines includes options from respected manufacturers such as Bosch, Varta, Exide, Halfords, and Lucas. Suitable models are Bosch S4 S40 08, Bosch S5 S50 08, Varta Blue Dynamic E11, Varta Silver Dynamic E44, Exide Premium EA770, Exide Excell EB740, Halfords Standard HCB 096, Lucas Supreme LS096, and Lucas Premium LP096. These batteries all feature capacities between 74 and 78 Ah and provide a high CCA from 680 to 780 A, ensuring reliable engine starts even in low temperatures and maintaining stable voltage for all electrical systems, including heating, lighting, and onboard electronics.
All batteries in this group share the same physical dimensions—278 mm in length, 175 mm in width, and 190 mm in height—which ensures a precise and secure fit within the Audi A3 II’s battery compartment. They are designed with a 0 polarity layout (positive terminal on the right), standard terminal type 1 (round posts), and utilize the B13 hold-down system for mounting, all of which match the factory equipment specification. Opting for one of these batteries guarantees seamless replacement, optimal compatibility, and reliable day-to-day performance, supporting the specific demands of the 1.6 TDI, 1.9 TDI, and 2.0 TDI engine variants without the Start-Stop system.
Audi A3 II (8P) Sportback – 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 |
For the Audi A3 II (8P) Sportback fitted with the 1.6 TDI Start-Stop, 2.0 TDI Start-Stop, 2.0 TDI 16V Start-Stop, and 2.0 TDI 16V quattro Start-Stop diesel engines, the battery requirements are distinct due to the integration of the Start-Stop system. This technology places significantly greater demands on the battery, as it must deliver frequent, repeated engine starts and withstand deep cycling far beyond what a standard lead-acid battery can manage. For these engine variants, AGM (Absorbent Glass Mat) batteries are essential, providing enhanced durability, rapid recharge capability, and superior resistance to vibration and deep discharge.
The recommended battery group for these Start-Stop diesel engines consists of high-quality AGM models from reputable manufacturers such as Bosch, Varta, Exide, Halfords, and Lucas. Notable examples include the Bosch S5 AGM S5A 08, Varta Silver Dynamic AGM E39, Exide AGM EK700 and EK720, Halfords Advanced AGM 096 and Standard AGM 096, as well as the Lucas Fusion AGM LF096. These batteries offer a capacity of 70 to 72 Ah and a high cold cranking amperage (CCA) of 720 to 760 A, which is vital for reliable starting and consistent operation of all vehicle systems, especially during cold weather or periods of high electrical demand.
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!