All listed engines operate on the four-stroke cycle, and unless stated otherwise, use a wet sump lubrication system, and are water-cooled.
This inline two-cylinder Turbocharged direct injection (TDI) diesel engine is the powerplant of the Volkswagen XL1This inline three-cylinder Turbocharged direct injection (TDI) diesel engine is the powerplant of the Volkswagen Lupo 3L and Audi A2 3L, with a low fuel consumption of only 2.99 L/100 km (94.5 mpg‑imp; 78.7 mpg‑US) – hence the "3L" tag.
The EA111 series of internal combustion engines was introduced in the mid 1970s in the Audi 50, and shortly after in the original Volkswagen Polo.
This overhead camshaft engine features a crossflow cylinder head design, and directly driven auxiliary units.
Not all technical details given in document showing the main characteristics of the 1.4-litre engine; they are assumed to be similar as it otherwise appears to be a longer-stroke version of the 1.3.
A heavily modified dry sump version was used in an LMP1 Lola sports car to compete in the 2004 Le Mans under a Caterpillar badge.