2003 BMW 3 Series coolant capacity
The 2003 BMW 3 Series holds about 8.3 to 8.9 quarts of coolant, depending on the engine - the full cooling-system capacity when cold.
Key takeaways
- The 2003 BMW 3 Series holds about 8.3 to 8.9 quarts of coolant total, depending on engine.
- This is the full cooling-system fill with the engine cold.
- Refill to the marked level, and use the coolant type your owner's manual specifies.
| Engine | Capacity | Liters |
|---|---|---|
| 318d | 8.3 qt | 7.9 L |
| 320i | 8.9 qt | 8.4 L |
When refilling, add coolant to the marked level rather than forcing in the full figure. Source.