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Volkswagen & Audi key fob battery
Most Volkswagen flip keys and keyless fobs use a CR2032; some older keys use a smaller coin cell, so check the code. Most Audi keys use a CR2032; some older keys use a CR2025.
| Battery | Used in | Size | Capacity |
|---|---|---|---|
| CR2032 | Volkswagen (most common); Audi (most common) | 20 mm × 3.2 mm | ≈ 225 mAh |
| CR2025 | Audi (older models) | 20 mm × 2.5 mm | ≈ 165 mAh |
Volkswagen key fobs
Most Volkswagen flip keys and keyless fobs use a CR2032; some older keys use a smaller coin cell, so check the code.
Dead fob? Hold the key close to the marked area on the steering column, then press the start button.
Audi key fobs
Most Audi keys use a CR2032; some older keys use a CR2025.
Dead fob? Hold the key against the marked area near the steering column or in the console tray, then press start.
Not sure which you have? See CR2032 vs CR2025: same look, different size.
To change it: release and pull out the metal key, twist its tip in the seam to split the case, and fit the new cell the same way up. Step-by-step guide.
Also mainly CR2032: Jeep, Ram, Dodge, Tesla.
Key types change between model years; the code on your old battery is final.