This is the BMW D7 Marine Engine Workshop Manual that we give you free in a copy. This workshop manual will help you to fix your trouble when your BMW marine engine not work properly. A four - stroke diesel engine with direct injection and o pen - circuit cooling system. The Neoprene impeller of the coolant pump is driven directly from the crankshaft. Electric starter and flywheel alternator are standard equipment. The injection system is fitted with automatic bleeding.