Choosing the right battery for the Audi TT II (8J3) produced between 2006 and 2014 is essential for ensuring reliable engine starts and supporting the car’s electrical systems. This generation of the Audi TT comes with a range of engines, including both petrol and diesel options, and the requirements for the battery may differ slightly depending on the specific engine variant. However, there are general guidelines and specifications that drivers can follow to make an informed decision when replacing the battery in their Audi TT II.
Firstly, it is important to note that none of the engine variants listed in the table are equipped with the Start-Stop system. This simplifies the choice somewhat, as batteries compatible with Start-Stop systems tend to have stricter requirements and use technologies such as AGM (Absorbent Glass Mat) or EFB (Enhanced Flooded Battery). For the majority of Audi TT II models, traditional lead-acid batteries are perfectly sufficient, providing they meet the necessary capacity and cold cranking amps (CCA) specifications.
For most petrol engines, such as the 1.8 TFSI, 2.0 TFSI, 2.0 TFSI quattro, 2.0 quattro, and the 3.2 V6 quattro, the recommended battery capacity ranges from 80 to 90 Ah, while the required cold cranking current is between 640 and 800 A. These specifications ensure that the battery can deliver enough power to start the engine, even under cold conditions, and can handle the electrical demands of the vehicle. Diesel engines, like the 2.0 TDI quattro, also fall within this range, reflecting their similar electrical needs.
When it comes to battery technology, most models without Start-Stop functionality can use standard lead-acid batteries. These batteries are widely available, cost-effective, and generally easy to maintain. Examples of compatible models include the Bosch S40 11, Bosch S50 11, Exide EA900, Exide EB800, Lucas LP115, Varta F16, and Varta F19. These are just examples of suitable batteries that fit the Audi TT II and meet the recommended specifications. It’s always advisable to verify the exact dimensions and terminal layout before making a purchase, as variations may exist depending on the production year or specific trim of the car.
A notable exception within the Audi TT II lineup is the high-performance 2.5 TFSI RS quattro engine. This variant requires a battery using AGM technology, which is more advanced than traditional lead-acid batteries. AGM batteries are designed to handle higher electrical loads, have better vibration resistance, and provide superior performance during frequent starts, which is beneficial even though this model does not have a Start-Stop system. For the 2.5 TFSI RS quattro, the recommended capacity is slightly more specific, at 80 to 82 Ah, with a cold cranking current of 800 A. Some example models that are compatible with this engine include the Bosch S5A 11, Exide EK800, Exide EK820, Halfords AGM 115, Lucas LF115, and Varta F21. These AGM batteries offer higher performance characteristics and are also maintenance-free, making them a convenient choice for demanding drivers.
A curious fact about the Audi TT II’s battery compartment is that it’s designed to accommodate larger batteries than some compact sports cars. This allows owners flexibility in choosing a battery with higher capacity, which can be particularly useful if the vehicle is used in colder climates or if extra electronic accessories have been installed. It’s also worth noting that maintaining the correct battery type and specification is crucial for the proper functioning of the car’s electronic systems, including keyless entry, alarm, and infotainment.
In summary, when selecting a new battery for the Audi TT II (8J3), it is vital to match the capacity (Ah) and cold cranking amps (A) to the engine’s needs, choose the appropriate technology (AGM for the 2.5 TFSI RS quattro, lead-acid for other engines), and consider example compatible models such as Bosch S40 11 or S5A 11, Exide EA900 or EK800, and Varta F16 or F21. Always double-check the physical dimensions and terminal layout before purchase to ensure a perfect fit. By following these guidelines, Audi TT II owners can enjoy dependable starting performance and avoid unnecessary electrical issues, ensuring their sports coupe remains as enjoyable and reliable as ever.
Audi TT in version II (8J3) was produced in the years 2006 – 2014. The following table presents information about batteries that match each of the engines available on the market.
Basic parameters of batteries suitable for Audi TT (2006-2014):
| Layout | Terminal types | Base hold-down |
|---|---|---|
| 0 – positive on the right side | 1 | B13 |
Audi TT II (8J3) – petrol engines:
- 1.8 TFSI
- 2.0 quattro
- 2.0 TFSI
- 2.0 TFSI quattro
- 3.2 V6 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 TT II (8J3) – petrol engines:
- 2.5 TFSI RS 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 |
Audi TT II (8J3) – diesel engines:
- 2.0 TDI 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 |
If you’re still unsure which battery fits your Audi TT , 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!