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Exhaust gas recirculation system
Exhaust gas recirculation system
Notes:
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◆ The function/control of the exhaust gas recirculation system is performed by the diesel direct injection system control unit (J248) via exhaust gas recirculation valve (N18) to mechanical exhaust gas recirculation valve.
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◆ The tapered plunger in the mechanical exhaust gas recirculation valve varies the opening cross section according to valve travel.
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◆ Every conceivable valve position is possible through pulsed control.
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◆ The exhaust gas recirculation is switched off after approx. 10 minutes at idling speed.
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◆ Restart the engine or briefly increase the engine speed above idling speed when longer checks are necessary. Then repeat checks.
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◆ Secure all hose connections with the correct hose clamps (same as original equipment):
=> Parts List
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◆ Always replace seals, gaskets and self-locking nuts.
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