Mercedes-Benz M113 engine

The Mercedes-Benz M113 is a family of petrol V8 engines, together with the closely related M155, used in Mercedes-Benz cars in the 2000s. It is based on the M112 V6 and was phased out in 2007 in favour of the M156 AMG engine and the M273. Standard M113 engines were built at Untertürkheim and the AMG versions at Affalterbach. The blocks are cast from aluminium and silicon (Alusil) and the single overhead camshaft aluminium heads have three valves per cylinder, with two spark plugs per cylinder, sequential fuel injection, forged connecting rods and a magnesium intake manifold. Versions ran from 4.3 litres, first fitted to the 1997 E 430 (W210), through 5.0 litres to the 5.4 litre AMG engines and a supercharged development.