Choosing the right battery for the Audi A4 B8 (2007–2015) depends largely on the engine variant and whether the car features Start-Stop technology. The B8 generation introduced more advanced electrical systems and engine options compared to its predecessors, making proper battery selection more important than ever. One of the key distinctions in this model range is the use of either standard lead-acid batteries or AGM (Absorbent Glass Mat) batteries, depending on whether the vehicle is equipped with Start-Stop functionality.
For petrol variants like the 1.8 TFSI or 1.8 TFSI quattro without Start-Stop, a standard 12V lead-acid battery with a capacity between 60 and 65 Ah and a cold cranking amperage (CCA) between 540 and 640 A is sufficient. These models don’t demand excessive power at startup or during idle. Some examples of compatible batteries include Bosch S40 05, Exide EA640, and Varta D24. These batteries are readily available, reliable, and well-suited for cars without energy recovery systems or additional electronic loads.
Drivers of 2.0 TFSI versions will find that the battery requirements vary based on whether Start-Stop is present. Models with this technology need an AGM battery rated at 70–72 Ah and 720–760 A CCA. AGM batteries are more resistant to deep discharges and support the frequent engine restarts associated with Start-Stop systems. Suitable examples include Bosch S5A 08, Exide EK720, and Varta E39. For the same engines without Start-Stop, standard lead-acid batteries with slightly higher capacity (74–78 Ah) and 680–780 A CCA are recommended, such as the Bosch S50 08 or Varta E11.
The more powerful 3.2 FSI models, whether with or without quattro, also require robust batteries in the 74–78 Ah range. Although these vehicles lack Start-Stop, they do have more advanced electronics and larger engines, making high cold cranking power essential. Matching battery examples include Exide EA770, Bosch S50 08, and Varta E44. These provide sufficient reserve power to handle long drives, short trips, and accessory usage without sacrificing performance.
Higher-end petrol variants, such as the S4 quattro and 3.0 TFSI quattro, come with even greater electrical demands. Those with Start-Stop should be fitted with AGM batteries rated at 80–82 Ah and around 800 A CCA. Examples include the Bosch S5A 11, Exide EK820, and Varta F21. In contrast, if the same engines are in versions without Start-Stop, standard lead-acid batteries rated from 80 to 90 Ah are appropriate. Batteries like Exide EB800 or Varta F19 are often suitable for these setups.
When it comes to diesel engines, Start-Stop once again dictates battery type. Most modern diesel A4 B8 models use AGM batteries with high cranking power to cope with the compression levels of diesel combustion and the frequent restarts. A 2.0 TDI with Start-Stop, for instance, typically uses an AGM battery of 70–82 Ah and 720–800 A CCA. Examples include Lucas LF096 and Halfords AGM 096. Versions without Start-Stop use similar capacities but can rely on traditional lead-acid types like the Bosch S50 08 or Exide EB740.
For the most power-demanding diesel variants like the 3.0 TDI quattro without Start-Stop or certain 2.0 TDI models (like the 105 kW version), a larger battery of 95–100 Ah with 800–900 A CCA is required. These batteries provide a larger energy reserve, crucial for colder climates and high-load systems. Example batteries include Bosch S50 13, Exide EA1000, and Varta H3.
A fun fact about the Audi A4 B8 is that it was one of the early vehicles in its class to feature energy regeneration systems and intelligent alternators, even in non-hybrid configurations. These systems increase the battery’s workload, especially in Start-Stop models, which is why AGM batteries have become a standard solution in later versions.
It is always advisable to check the battery’s coding or registration in the car’s Battery Management System (BMS) after replacement, especially for Start-Stop equipped models. This ensures optimal charging behavior and prolongs the life of the new battery. Whether choosing an AGM or a standard battery, using high-quality products from trusted brands will keep your Audi A4 B8 running smoothly in all conditions.
Audi A4 in version B8 was produced in the years 2007 – 2015. Below we present the specifications of batteries suitable for specific engines.
Basic parameters of batteries suitable for Audi A4 (2007-2015):
| Layout | Terminal types | Base hold-down |
|---|---|---|
| 0 – positive on the right side | 1 | B13 |
Audi A4 B8 – petrol engines:
- 1.8 TFSI
- 1.8 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 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 A4 B8 – petrol engines:
- 2.0 TFSI (132kW, 155kW)
- 2.0 TFSI quattro (132kW, 155kW)
- 3.2 FSI
- 3.2 FSI 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 A4 B8 – petrol engines:
- 2.0 TFSI (132kW, 155kW) – with Start-Stop
- 2.0 TFSI quattro (132kW, 155kW) – 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 Standard AGM 096 | 70 Ah 720 A | 278x175x190 mm | More |
| Halfords Advanced AGM 096 | 70 Ah 760 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 A4 B8 – petrol engines:
- S4 quattro
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S4 S40 11 | 80 Ah 740 A | 315x175x190 mm | More |
| Bosch S5 S50 11 | 85 Ah 800 A | 315x175x190 mm | More |
| Exide Excell EB800 | 80 Ah 640 A | 315x175x190 mm | More |
| Exide Premium EA900 | 90 Ah 720 A | 315x175x190 mm | More |
| Lucas Premium LP115 | 80 Ah 670 A | 317x175x190 mm | More |
| Varta Blue Dynamic F16 | 80 Ah 740 A | 315x175x190 mm | More |
| Varta Silver Dynamic F19 | 85 Ah 800 A | 315x175x190 mm | More |
Audi A4 B8 – petrol engines:
- 1.8 TFSI – with Start-Stop
- 1.8 TFSI quattro – with Start-Stop
- 2.0 TFSI (132kW, 165kW) – with Start-Stop
- 2.0 TFSI quattro (132kW, 165kW) – with Start-Stop
- 3.0 TFSI quattro
- S4 quattro – with Start-Stop
| 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 |
Audi A4 B8 – diesel engines:
- 2.0 TDI (88kW, 125kW)
- 2.0 TDI quattro (88kW, 125kW)
| 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 A4 B8 – diesel engines:
- 2.0 TDI (88kW, 125kW) – with Start-Stop
- 2.0 TDI quattro (88kW, 125kW) – 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 Standard AGM 096 | 70 Ah 720 A | 278x175x190 mm | More |
| Halfords Advanced AGM 096 | 70 Ah 760 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 A4 B8 – diesel engines:
- 2.7 TDI
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S4 S40 11 | 80 Ah 740 A | 315x175x190 mm | More |
| Bosch S5 S50 11 | 85 Ah 800 A | 315x175x190 mm | More |
| Exide Excell EB800 | 80 Ah 640 A | 315x175x190 mm | More |
| Exide Premium EA900 | 90 Ah 720 A | 315x175x190 mm | More |
| Lucas Premium LP115 | 80 Ah 670 A | 317x175x190 mm | More |
| Varta Blue Dynamic F16 | 80 Ah 740 A | 315x175x190 mm | More |
| Varta Silver Dynamic F19 | 85 Ah 800 A | 315x175x190 mm | More |
Audi A4 B8 – diesel engines:
- 2.0 TDI (110kW, 140kW) – with Start-Stop
- 2.0 TDI (130kW) – with Start-Stop
- 2.0 TDI quattro (110kW, 140kW) – with Start-Stop
- 2.0 TDI quattro (130kW) – with Start-Stop
- 2.7 TDI – with Start-Stop
- 3.0 TDI (150kW, 180kW) – with Start-Stop
- 3.0 TDI quattro (150kW, 180kW) – with Start-Stop
| 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 |
Audi A4 B8 – diesel engines:
- 2.0 TDI (105kW)
- 3.0 TDI quattro
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S4 S40 13 | 95 Ah 800 A | 353x175x190 mm | More |
| Bosch S5 S50 13 | 100 Ah 830 A | 353x175x190 mm | More |
| Exide Excell EB950 | 95 Ah 800 A | 353x175x190 mm | More |
| Exide Premium EA1000 | 100 Ah 900 A | 353x175x190 mm | More |
| Halfords Standard HCB 019 | 95 Ah 850 A | 353x175x190 mm | More |
| Lucas Premium LP019 | 95 Ah 800 A | 354x175x190 mm | More |
| Lucas Supreme LS019 | 100 Ah 850 A | 354x175x190 mm | More |
| Varta Blue Dynamic G3 | 95 Ah 800 A | 353x175x190 mm | More |
| Varta Silver Dynamic H3 | 100 Ah 830 A | 353x175x190 mm | More |
If you’re still unsure which battery fits your Audi A4 , 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!