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Exhaust gas recirculation system
Exhaust gas recirculation system
Notes:
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◆ The function and regulation of the exhaust gas recirculation system is checked by the self-diagnosis of the Motronic control unit (J220).
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◆ Pulsed control makes every conceivable valve position possible.
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◆ The cone shaped plunger in the (electric) EGR valve ensures that various cross sectional openings are possible at different plunger lifts.
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◆ Checking exhaust gas recirculation valve (N18).
=> Repair group 01; Final control diagnosis; Performing final control diagnosis
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◆ Components marked with an * are checked via the self-diagnosis.
=> Repair group 01; Fault memory; Interrogating and erasing fault memory of engine control unit
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◆ Components marked with ** are checked via the final control diagnosis.
=> Repair group 01; Final control diagnosis; Performing final control diagnosis
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