Bmw 2ddd00 -

The 2DDD00 code typically triggers when the engine control unit (DME/DDE) detects that the measured air mass is deviates from expected parameters—often reading too high. In many cases, this is not a fault of the air intake itself, but a symptom of a failing . If the EGR valve becomes stuck or the cooler's internal bypass flap fails, the engine pulls in more fresh air than intended to compensate for the lack of recirculated exhaust gas, leading to the "air mass too high" reading. Causes and Symptoms

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