E39 / P0507 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Malfunction Indicator Lamp
Idle Speed Control. Idling Speed too High.

Fault symptom
Malfunction Indicator Lamp
On-board diagnosis
Type of diagnosis:
Enable criteria:
Coolant temperature above 60°C. |
Intake air temperature above -10.5°C. |
Secondary air pump must not be active. |
Idling at least 5 seconds. |
The idle speed is stable within +/-25 rpm. |
Fault criteria:
Engine speed exceeds requested idling speed by more than 182 rpm for more than 10 s. |
Diagnostic help
Diagnosis regards:
Air leak after throttle or blocked throttle. |
A crankcase ventilation leak may be one reason as to why a DTC is set. Check crankcase ventilation function before starting regular troubleshooting. |
Functions in the diagnostic tool related to the fault:
(See also description of readings/activations in diagnostic tool) |