| DEF specification | ISO 22241-1 |
| Capacity | about 4 gallons |
| Shelf life | It expires, don't hoard! |
Using VCDS or similar:
01 Engine ->
Advanced Measuring Values ->
IDE 05232: Reducing Agent Fill Level
result is a % of filled
Other things you can query:
| Loc | Description | Data | notes |
|---|---|---|---|
| IDE05232 | Reducing Agent Fill Level | % full | |
| IDE03142 | Remaining Vehicle Distance Until Reducing Agent Deficiency | km | |
| IDE03144 | Used Reducing Agent Since Last Service | grams | |
| IDE10032 | Reducing Agent Quality Sensor: Urea concentration | % urea | Should be 32.5% |
| IDE10246 | Reducing Agent Tank Volume Actual Filtered | ml | ≈ 13,400 ml |
| IDE10247 | Reducing Agent Tank Volume Actual Calculated | liters | ≈ 13.4 L |
| IDE03143 | Remaining Engine Starts Until Reducing Agent Deficiency - Bits 0-7 | ## | ??? |