Mercedes-Benz 108 series, W108 (EU)
Brake fluid capacity & service interval
Mercedes-Benz 108 series, W108 (EU) models utilize brake fluid with a capacity of 0,5 liter. Service intervals consist of checks every 10000 km or 6 months. The data covers 3 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| 280SE, SEL 3.5, 108.057/058 (1970-1972) |
|
| 280S, 108.016 (1968-1972) |
|
| 280SE, SEL, 108.018/019 (1968-1972) |
|
Additional Notes
- Across all three configurations of the Mercedes-Benz 108 series W108 (EU), the hydraulic brake/clutch system holds a capacity of 0.5 liter, which represents the total fluid volume of the combined braking and clutch hydraulic circuit rather than a standalone brake reservoir fill.
- The 280S 108.016, covering 1968-1972, shares an identical 0.5 liter capacity and a check interval of every 10,000 km or 6 months with the other W108 variants, indicating a uniform hydraulic system volume across the lineup regardless of engine designation.
- The 280SE/SEL 3.5 108.057/058, introduced for 1970-1972, carries the same 0.5 liter hydraulic system capacity as the earlier 108.018/019 variant despite housing a different engine, confirming that the V8-engined variant did not require a larger brake fluid reservoir.
- The check interval of 10,000 km or 6 months, applied under normal use conditions across all three configurations, reflects a time-based threshold alongside a distance-based one, acknowledging that brake fluid absorbs moisture over time regardless of mileage accumulated.
- The 280SE/SEL 108.018/019 and the 280SE/SEL 3.5 108.057/058 are both listed as serving the SE and SEL body variants, yet both share the same 0.5 liter hydraulic system capacity, meaning the extended-wheelbase SEL body did not alter the fluid volume specification.