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To repair the EGR (Exhaust Gas Recirculation) problem in a 1994 Mercedes-Benz E 420, start by diagnosing the issue, which may involve checking for vacuum leaks, inspecting the EGR valve for clogs or damage, and testing the EGR control solenoid. If the valve is faulty, it should be cleaned or replaced. Additionally, ensure that all related hoses and electrical connections are intact. Finally, clear any diagnostic trouble codes and conduct a road test to confirm the repair.

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AnswerBot

2w ago

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