Selecting the right battery for the Seat Leon 2, produced between 2005 and 2012, involves more than just matching the size. Each engine version, from smaller petrol units to powerful diesel options, comes with specific electrical requirements that must be addressed for optimal performance. Additionally, whether the car is equipped with a start-stop system significantly influences the type of battery required, with conventional lead-acid batteries sufficient for most variants, while AGM batteries are necessary for others.
For petrol engines without the start-stop system—such as the 1.4 16V, 1.4 TSI, 1.6, and the high-performance 2.0 TFSI Cupra R—standard flooded lead-acid batteries are recommended. These vehicles generally require battery capacities ranging between 50 to 65 Ah and cold cranking amps from 420 to 640 A, depending on the engine. The battery must be reliable enough to support consistent starting power while also feeding the onboard electronics. Examples of compatible battery models include Bosch S40 05, Exide EB620, and Varta D15. These options are known for solid performance and good cold-start capabilities, especially important during winter months.
If you’re driving a 1.2 TSI model with the start-stop system, you’ll need to look for an AGM battery. These batteries are specially designed to handle the high number of cycles caused by frequent engine restarts in urban driving conditions. In this case, the required capacity lies around 60 to 62 Ah with a CCA rating between 640 and 680 A. Some of the suitable AGM models include Bosch S5A 05, Exide EK600, and Varta D52. AGM technology uses a glass mat to hold the acid, making the battery spill-proof and more vibration-resistant, which is an added benefit for long-term reliability.
When it comes to diesel versions without the start-stop feature, such as the 1.6 TDI, 1.9 TDI, and 2.0 TDI engines, a higher capacity battery is necessary to accommodate the greater demand from the glow plugs and higher compression engines. These models typically need 74 to 78 Ah batteries and a starting power between 680 and 780 A. Recommended standard battery models include Bosch S40 08, Exide EA770, and Varta E11. These batteries provide the strength needed to ensure dependable ignition, even when the temperatures drop below freezing.
For the 1.6 TDI with a start-stop system, the requirements are more demanding, both in terms of capacity and technology. The start-stop function increases the load on the battery, which makes an AGM type essential. A good match would be a 70 to 72 Ah AGM battery with at least 720 A CCA. Compatible examples include Bosch S5A 08, Exide EK720, and Varta E39. While AGM batteries are generally more expensive, their superior endurance and charging capabilities make them worth the investment for modern driving styles.
One interesting point about the Seat Leon 2 is that it shares its platform with other popular VW Group cars, such as the VW Golf Mk5 and Audi A3 8P. This means many parts—including battery trays—are similar, making it easier to find compatible replacements. However, always double-check terminal positions and battery length, width, and height to avoid compatibility issues.
It’s also good practice to consider your climate and driving habits when selecting a battery. If you frequently take short trips, opt for a battery with a higher reserve capacity to compensate for limited charging time. For colder regions, a battery with higher CCA is advised. In any case, choosing a reliable, quality battery brand ensures better durability and peace of mind on the road. Whether you’re replacing a conventional battery or upgrading to an AGM unit, models like those from Bosch, Exide, Lucas, or Varta offer trusted performance and compatibility with your Seat Leon 2.
Seat Leon in version 2 was produced in the years 2005 – 2012. Below we present the specifications of batteries suitable for specific engines.
Basic parameters of batteries suitable for Seat Leon (2005-2012):
| Layout | Terminal types | Base hold-down |
|---|---|---|
| 0 – positive on the right side | 1 | B13 |
Seat Leon 2 – petrol engines:
- 1.4 16V
- 1.4 TSI
| 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 |
Seat Leon 2 – petrol engines:
- 1.6
- 1.6 LPG
- 1.8 TSI
- 2.0 Cupra R
- 2.0 FSI
- 2.0 TFSI
| 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 |
Seat Leon 2 – petrol engines:
- 1.2 TSI – 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 |
Seat Leon 2 – diesel engines:
- 1.6 TDI
- 1.9 TDI
- 2.0 TDI
- 2.0 TDI 16V
| 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 |
Seat Leon 2 – diesel engines:
- 1.6 TDI – 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 Seat Leon , 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!