Home >> BMW >> 2007 >> Z4 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - DTC P0010 - DTC P1198 (N51, N52) >> BMW MSV80 >> DTC P0599, BMW Hex Code 0x2EF5, BMW Code 12021: Thermostat Heater Control Circuit High (MAX) >> Repair procedures (plant/service)