| Exhaust gas recirculation system |
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| Under certain operating conditions, exhaust gas is fed into the intake air via the exhaust gas recirculation valve -N18-. By means of this mixture, a lowering of the combustion temperature and consequently an improvement of the exhaust gas composition is achieved. |
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| The exhaust gas recirculation valve -N18- is activated by the engine control unit. |
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| Pulsed actuation makes it possible to obtain any required valve position. |
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| The exhaust gas recirculation potentiometer -G212- signals the current position of the exhaust gas recirculation valve -N18- to the engine control unit. The valve and the potentiometer are integrated in a single component. |
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| If the exhaust gas recirculation valve -N18- is blocked in the open position, this is noticeable due to poor idling characteristics. |
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