Selecting the right battery for your BMW 1 Series E82 (Coupe) produced between 2007 and 2013 is crucial for ensuring optimal vehicle performance and reliability, especially considering the sophistication of modern car electronics and start-stop systems. The E82 generation, representing the sportier coupe version of the 1 Series, features a range of petrol and diesel engines with and without start-stop functionality, which directly affects the choice of suitable batteries. It’s important to align your battery selection with both your engine variant and your car’s specific electrical requirements, as choosing an inadequate battery may not only impair performance but could also result in system malfunctions or even damage to sensitive electronics.
For petrol engines such as the 125i and 135i, the presence or absence of a start-stop system is a decisive factor in determining the correct type of battery. Vehicles fitted with a start-stop system, such as the 125i with Start-Stop, require an AGM (Absorbent Glass Mat) battery. AGM batteries are specifically designed to handle the frequent engine restarts and higher electrical demands of start-stop systems, as they offer superior cycling durability and can sustain repeated deep discharge cycles. For these models, a battery with a capacity in the range of 70 to 72 Ah and a cold cranking amperage (CCA) between 720 and 760 A is recommended. Some suitable examples include the Bosch S5A 08, Exide EK700, Exide EK720, Halfords AGM 096, Lucas LF096, and Varta E39—these are not exclusive options, but rather representative of what meets the technical requirements.
Interestingly, if your 135i is not equipped with a start-stop system, the same AGM technology is still suitable, with similar capacity and amperage recommendations. This reflects BMW’s tendency to use robust electrical systems across its performance-oriented models, ensuring reliability and longevity even without the demands of frequent engine stops and starts. However, for the 125i without start-stop, a conventional lead-acid battery (also known as a flooded or SLI battery) can be used, provided it has a slightly higher capacity—between 74 and 78 Ah—and a CCA in the range of 680 to 780 A. Examples that fit these criteria include the Bosch S40 08, Bosch S50 08, Exide EA770, Exide EB740, Halfords HCB 096, Lucas LP096, Lucas LS096, Varta E11, and Varta E44.
For the high-performance M variant, battery demands are even greater, requiring an AGM battery with a capacity of 80 to 82 Ah and a consistent 800 A CCA. This is due to the powerful engine and the increased electrical load from various onboard systems. In this case, suitable AGM batteries include the Bosch S5A 11, Exide EK800, Exide EK820, Halfords AGM 115, Lucas LF115, and Varta F21—again, these are only examples.
Diesel engines, known for their higher compression ratios and greater demands on starting power, also necessitate robust batteries. For models like the 118d, 120d, and 123d with start-stop systems, AGM batteries with capacities in the 80 to 82 Ah range and a CCA of 800 A are advisable. The aforementioned AGM models are applicable here as well. It’s worth noting that for diesel variants without start-stop, such as the 118d, a conventional lead-acid battery can be chosen, but it must offer between 80 and 88 Ah and a CCA from 700 to 800 A. Examples include Bosch S40 10, Bosch S50 10, Exide EA852, Exide EB802, Halfords HCB 110, Lucas LP110, Lucas LS110, Varta F17, and Varta F18. One unique detail for this configuration is the requirement for a reduced battery height of 175mm, so it’s essential to check the physical dimensions before purchasing.
A fascinating aspect of the E82 coupe is how BMW engineered its electrical systems to accommodate both traditional and advanced battery technologies, reflecting the transitional period in automotive design between conventional and start-stop systems. AGM batteries not only support start-stop functions but are also more resistant to vibration and offer longer service life, which is particularly beneficial for sporty coupes subjected to dynamic driving.
To wrap up, always match your battery choice to your engine type, fuel type, and the presence of start-stop technology. While the brands and models mentioned here are strong examples, always double-check the physical size, terminal layout, and technical specifications to guarantee a perfect fit. With the right battery, your BMW 1 Series E82 will start reliably and support all modern conveniences for years to come.
BMW 1 Series in version E82 (Coupe) was produced in the years 2007 – 2013. Below we present the specifications of batteries suitable for specific engines.
Basic parameters of batteries suitable for BMW 1 Series (2007-2013):
| Layout | Terminal types | Base hold-down |
|---|---|---|
| 0 – positive on the right side | 1 | B13 |
BMW 1 Series E82 (Coupe) – petrol engines:
- 125 i
| 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 |
BMW 1 Series E82 (Coupe) – petrol engines:
- 125 i – with Start-Stop
- 135 i
| 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 |
BMW 1 Series E82 (Coupe) – petrol engines:
- M
| 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 |
BMW 1 Series E82 (Coupe) – petrol engines:
- 120 i – with Start-Stop
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S5 AGM S5A 13 | 95 Ah 850 A | 353x175x190 mm | More |
| Exide AGM EK950 | 95 Ah 850 A | 353x175x190 mm | More |
| Exide AGM EK960 | 96 Ah 850 A | 353x175x190 mm | More |
| Halfords Advanced AGM 019 | 95 Ah 850 A | 353x175x190 mm | More |
| Lucas Fusion AGM LF017 | 95 Ah 850 A | 353x175x190 mm | More |
| Varta Silver Dynamic AGM G14 | 95 Ah 850 A | 353x175x190 mm | More |
BMW 1 Series E82 (Coupe) – diesel engines:
- 118 d
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S4 S40 10 | 80 Ah 740 A | 315x175x175 mm | More |
| Bosch S5 S50 10 | 85 Ah 800 A | 315x175x175 mm | More |
| Exide Excell EB802 | 80 Ah 700 A | 315x175x175 mm | More |
| Exide Premium EA852 | 85 Ah 800 A | 315x175x175 mm | More |
| Halfords Standard HCB 110 | 80 Ah 760 A | 315x175x175 mm | More |
| Lucas Premium LP110 | 80 Ah 800 A | 317x175x175 mm | More |
| Lucas Supreme LS110 | 88 Ah 800 A | 317x175x175 mm | More |
| Varta Blue Dynamic F17 | 80 Ah 740 A | 315x175x175 mm | More |
| Varta Silver Dynamic F18 | 85 Ah 800 A | 315x175x175 mm | More |
BMW 1 Series E82 (Coupe) – diesel engines:
- 118 d – with Start-Stop
- 120 d – with Start-Stop
- 123 d – 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 |
If you’re still unsure which battery fits your BMW 1 Series , 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!