wydech dpf, MONDEO, manuale
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Exhaust System - 2.0L Duratorq-TDCi (100kW/136PS) - DW-C/2.0L
Duratorq-TDCi (85kW/115PS) - DW/2.0L Duratorq-TDCi
(103kW/140PS) - DW - Exhaust System
Mondeo 2007.5 (02/2007-)
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Description and Operation
Catalytic converter
Description
Exhaust flexible pipe gasket
Exhaust hanger insulators
Catalytic converter and exhaust flexible pipe assembly
Exhaust temperature sensor
Catalytic converter to turbocharger clamp
Catalytic converter support bracket
Diesel Particulate Filter (DPF)
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Description
DPF gasket
DPF
Pressure differential sensor lines
Pressure differential sensor bracket
Pressure differential sensor
DPF temperature sensor
Exhaust hanger insulators
DPF filter system consists of the following components:
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Diesel particulate filter (DPF)
Pressure differential sensor
2012-08-09
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Temperature sensor
DPF
The DPF reduces the pollution generated by diesel vehicles by filtering soot particles out of the exhaust gases.
Pressure Differential Sensor
The pressure differential sensor monitors the pressure drop within the DPF.
Temperature Sensors
The exhaust temperature sensor monitors the catalyst temperature. The DPF temperature sensor monitors the pre-DPF temperature. These signals are sent
to the powertrain control module (PCM).
Regeneration of the DPF
Soot particles can accumulate in the post DPF exhaust tailpipe. The accumulation of the soot particles should not be considered a concern, as the DPF is not
100% efficient at filtering the soot particles.
During the regeneration process, it is possible that white smoke may be emitted from the exhaust tailpipe. This is an inherent by-product of the
regeneration process and should not be considered a concern.
The pressure differential sensor is connected to the DPF by the pressure differential sensor lines to monitor the pre-pressure and post-pressure of the DPF.
The pressure differential sensor converts these measurements to a signal voltage, which is then sent to the PCM to be used as part of the decision of
whether to apply the regeneration process or not.
The PCM will choose the optimum time for the regeneration of the DPF. Under normal operating conditions the regeneration process occurs when the PCM
has calculated that the DPF requires regeneration and that predetermined vehicle conditions are met (for example coolant temperature, vehicle speed and
engine load).
Manual regeneration of the DPF
If the DPF becomes blocked the pressure differential sensor will register a high pressure diagnostic trouble code (DTC) with the PCM, the malfunction
indicator lamp (MIL) will be illuminated and the limp home mode activated.
A blocked DPF can be a result of:
Excessive soot particles production
Multiple failed regeneration events
Mechanical or electrical failure of a related system or sub-system (for example EGR valve stuck open, charge air system leak, fuel injectors)
The manual regeneration of the DPF can be used to clear the soot particles from the DPF. For additional information, refer to WDS.
Muffler
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Description
Muffler
Exhaust hanger insulators
2012-08-09
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