This function must only be run after replacing the dosing valve, when the fault code P208E FTB 0 - "Aftertreatment reagent dosing valve clogged" is active. If the valve is replaced with a functioning dosing valve, this fault code will be erased.
Note:
To avoid serious damage to the aftertreatment system the dosing module must be removed from the inlet pipe. The module should hang freely in its connections. Screws for the dosing module shall be installed back in the module and fastened with nuts on the back of the heat shield to prevent the dosing module from leaking.
Place a collection container under the dosing module to collect the Adblue that will be dosed.
After completed test, the dosing module shall be installed back in the inlet pipe and the engine run for 3 minutes. This ensures that enough post ventilation of the SCR system has been reached.
Adblue may irritate skin and may react aggressively with electronic components.
Test conditions:
Before running the dosing test, "Starting SCR operation, test" must be finished.
Parking brake applied.
Engine off.
Ignition on.
Dosing module disconnected from inlet pipe.
Adblue in reservoir.
Battery voltage above 20V.
Procedure:
Start the function.
Check conditions.
Select to start or cancel the test.
The function is done.
If the function fails, check the test conditions and repair any faults.