Smart fortwo, 451
Brake fluid capacity & service interval
Smart fortwo 451 uses brake fluid with a capacity range between min and max. The service interval for brake fluid is 24 months. The data covers 3 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| fortwo Electric drive Brabus, 451.390/.490 (2013-2015) |
|
| fortwo Electric drive, 451.390/.490 (2012-2015) |
|
| fortwo Electric drive, 451.391/.491 (2010-2012) |
|
Additional Notes
- All three Smart fortwo 451 Electric drive configurations share a brake fluid service interval of 24 months under normal use conditions.
- Rather than a fixed volume, the brake fluid fill level for each configuration is specified as between the minimum and maximum marks on the reservoir, indicating a top-up or inspection-based service rather than a measured drain-and-fill procedure.
- The fortwo Electric drive Brabus (451.390/.490) carries the same 24-month change interval and reservoir-based fill specification as the standard Electric drive variants, despite its performance-oriented designation.
- The earlier Electric drive variant with chassis codes 451.391/.491, covering 2010-2012, shares the identical brake fluid specification as the later 451.390/.490 variant introduced from 2012, meaning no change in brake fluid service requirements occurred across the generational update within the 451 series.