Description and principle of operation (turbocharger)

Vehicles with 70 hp diesel engine or 90 hp

Pos.	Spare Part No	Name
1	-	Turbocharger/exhaust manifold

The turbocharger consists of two elements: a turbine and a compressor, mounted on the same shaft and enclosed in a common housing.

The turbocharger and exhaust manifold are combined and although it is possible to separate them, they are not supplied separately and therefore should not be separated.

The turbocharger bearings receive oil from the engine through an oil supply line. The oil returns to the oil sump through the oil return line.

The turbine part of the turbocharger is mounted on the exhaust manifold and uses the energy of the exhaust gases to set the compressor in motion. The compressor draws air from the charge air cooler.

The turbocharger is controlled by a turbine bypass valve. The turbine bypass valve bypasses part of the exhaust gases behind the turbine. The turbine bypass valve is controlled by a solenoid valve that is preset at the factory and cannot be adjusted in any way.

Vehicles with a 115 hp diesel engine

Pos.	Spare Part No	Name
1		Vacuum Diaphragm Block
2		Turbocharger
3		An exhaust manifold
4		Bolt of fastening of the feeding oil pipeline of a turbocharger
5		Sealing washers for the turbocharger oil supply line
6		Turbocharger oil supply line
7		Turbocharger oil return line
8		O-ring for turbocharger oil return line
9		Bolt of fastening of the feeding oil pipeline of a turbocharger
10		Sealing washers for the turbocharger oil supply line

The vacuum diaphragm turbocharger vane control adjusts the position of the turbocharger vanes according to the vacuum generated by the turbocharger vane control solenoid valve. The turbocharger vane adjustment solenoid valve is controlled by the powertrain control module (PCM). The actual turbocharger boost pressure is controlled by adjusting the position of the turbocharger vanes and thus eliminating the need for a turbine bypass control valve. The turbocharger vacuum diaphragm vane adjuster is preset at the factory and cannot be adjusted in any way.