Does the 2021 Audi TT have auto start-stop?
On some configurations. Yes on the 2.0L 4-cylinder turbo. No on the 2.5L 5-cylinder turbo.
Key takeaways
- Start-stop cars restart the engine many times per drive, so they are usually fitted with an AGM or EFB battery - replace like with like.
- Most systems have an off button that disables start-stop until the engine is next started; some models remember the setting.
| Engine | Drive | Transmission | Start-stop |
|---|---|---|---|
| 2.0L 4-cylinder turbo | AWD | 7-speed automated manual (dual-clutch) | Yes |
| 2.5L 5-cylinder turbo | AWD | 7-speed automated manual (dual-clutch) | No |
Source: U.S. EPA / DOE fuel economy data (fueleconomy.gov). Each row is one certified configuration; a trim or option not sold in a configuration is not listed.
2021 Audi TT battery size, type and CCA → Some start-stop cars also need the new battery registered: which ones →
Useful for the 2021 Audi TT
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