E39 / P0496 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE
EVAP Purge Valve, Internal Leakage
Fault symptom
CHECK ENGINE
On-board diagnosis
Type of diagnosis:
| Once per driving cycle. Stopped when fault criteria are fulfilled or OK reported. |
Enable criteria:
| Battery voltage must be between 11 - 18 V. |
| Fuel level between 10% and 90%. |
| Tightness diagnosis active (P0455). |
| Shut-off valve and EVAP canister purge valve are closed, tank pressure is registered. |
Fault criteria:
| Although the purge valve is closed, the tank pressure continues to fall. When the pressure has reached -2491 Pa in 4 s, a DTC is set. |
Diagnostic help
Diagnosis regards:
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
