Mercedes-Benz 108 series, W108 (EU)

Additional Notes

• The Mercedes-Benz W108 rear differential holds 2.5 liters of fluid across all listed variants, from the 250S (108.012) through to the 280SE/SEL 3.5 (108.057/058). A consistent capacity of this level is characteristic of a compact rear axle housing typical of European executive saloons of the era.
• The 2.5-liter figure applies equally to both standard open differentials and limited slip differentials across the W108 range. Despite the mechanical differences between these two differential types, the housing volume remains identical in all listed configurations.
• All eight rows carry a normal use condition tied to a check interval of every 10,000 km or 6 months, whichever comes first. The dual-trigger format, combining a distance threshold with a time limit, reflects a service philosophy common to European manufacturers of the period, accounting for vehicles that accumulate low mileage over extended periods.
• The 280S (108.016, 1968-1972) is listed with two separate differential entries: one for the standard rear differential and one for the rear limited slip differential, both sharing the 2.5-liter capacity and the same 10,000 km/6-month check interval under normal use.
• The same dual-entry pattern seen on the 280S applies to the 280SE/SEL (108.018/019, 1968-1972) and the 280SE/SEL 3.5 (108.057/058, 1970-1972), confirming that the limited slip option was available across multiple W108 variants introduced from 1968 onward.
• The 250S (108.012) and 250SE (108.014) are each listed with a single differential entry, carrying no limited slip variant in the specifications. Both retain the 2.5-liter capacity and the 10,000 km/6-month check interval under normal use.
• The 250SE (108.014) production window of 1965-1968 is the shortest among the listed variants, while the 280S (108.016) and 280SE/SEL (108.018/019) both span 1968-1972, representing a four-year production period within the W108 range.