Technical information

Powertrain Engines
Pistons
• The shape of the pistons has been adapted to the requirements of the direct injection
system, i.e. the piston top is recessed to improve the mixture formation.
• The piston skirt is redesigned due to the modified oil jet valves. In addition, it features a
coating to reduce friction between the piston and the cylinder.
• Piston, piston pin and connecting rod are not shrinkage fitted, i.e. the components can
be replaced separately.
L1001.4_01018
1 Oil jet release width
Cylinder Head
• Due to the adoption of the direct injection system the cylinder head is equipped with
installation holes for the fuel injectors.
L1001.4_01019
1 Fuel injector installation hole 2 Combustion chamber
Curriculum Training 01-23