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Home >> BMW >> 2016 >> 528i xDrive >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes (N20 & N26) >> Fault Code Tests >> DTC P0299: BMW DTC 121531; DME -- Turbocharger/Supercharger 'A' UNDERBOOST Condition >> Fault description

Fault description

The diagnosis monitor the charging pressure for implausibly low values.

Fault monitoring conditions:

The fault is detected when the absolute charging pressure is lower than the limit value.

Limit value: 500 mbar