The 3.2L Duratorq-TDCi (Puma) diesel engine is a five-cylinder inline engine which delivers a power of 147kW (200 PS).
The engine is additionally equipped with an oil level/oil temperature sensor and a centrifugal oil filter.
The cylinder head consists of two parts and is made of aluminum. Both parts are bolted to each other.
The lower part contains four valves for each combustion chamber and the two camshafts.
The upper part houses the rocker arm frame with the roller rocker arms. The hydraulic valve clearance adjustment is integrated in the roller rocker arms.
The camshafts and the fuel injection pump are driven by the crankshaft via the timing chain.
The oil pump is located inside the oil pan and is driven by the crankshaft via a chain.
The vacuum pump is mounted together with the coolant pump on the engine and is driven via the poly-V belt.
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Centrifuge (under the valve cover)
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Oil pressure line to the centrifugal oil filter
The oil from the oil pan is pumped into the rotor via an additional pressure line installed on the outside of the engine block. In the inner part of the rotor there is a shaft with two outlet openings on opposite sides.
This shaft is rotated as a result of the oil pressure and due to the shape of the rotor, and this causes the oil in the rotor to be slung outward. The centrifugal force presses the particles floating in the oil (contamination) against the outer wall of the rotor, where they form a solid mass.
The oil in the rotor is filtered in this manner and then flows back into the oil circuit.
The centrifugal oil filter can even catch small particles of dirt that cannot be filtered using normal oil filters. This increases the service life of the oil.
Oil level/temperature sensor
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Oil level/temperature sensor
An oil level/temperature sensor located on the front of the engine directly beside the engine oil dipstick is provided for the service interval indicator.
A wire coil that is fitted inside the sensor and continuously supplied with current is used to measure the oil level.
The resistance of the wire coil changes according to how deeply the sensor is immersed in the oil. The measurement values are registered by the Powertrain Control Module (PCM).
The change in the voltage drop serves as an input variable for calculating the oil level.
The oil temperature is sensed simultaneously via the integrated temperature sensor. The temperature is used as a corrective factor in the calculation.
The PCM calculates the next oil change on the basis of an integrated strategy (which also takes into consideration the mileage and engine operating conditions) and displays it in the instrument panel.
In addition, a separate indicator in conjunction with a corresponding message in the instrument cluster display warns the driver when the oil quantity falls below the minimum level.
Service instruction
The interval indicator must be reset after an oil change on all vehicles with a diesel engine.
It must be ensured that the vehicle is standing on level ground.
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