majafrank17

Kangoo AdBlue Defect

Hi, I have a 2022 Renault Kangoo diesel with 109064 km. The AdBlue tank seems to be empty, even though it shouldn't be. I'm getting an error message on the speedometer, and the error memory also has a related entry. Now the engine won't start. Could a defective AdBlue output from the tank to the dosing unit be the cause?

4 comment(s)

I had a similar issue with my 2019 Peugeot Partner. The symptoms were identical: AdBlue warning, error codes, and eventual no-start condition. Have you checked the DEF injector? Sometimes crystallization can occur, blocking the injection of DEF fluid into the exhaust stream. This blockage can trigger the errors you're seeing and prevent the engine from starting.

Thanks for the information. How did you determine that the DEF injector was the problem? What steps did you take to diagnose it?

In my case, the diagnostic process involved a thorough inspection of the entire diesel exhaust fluid injection system. Error codes pointed towards insufficient DEF injection. The workshop confirmed the blockage after removing and inspecting the injector. Considering your symptoms are analogous, a similar problem with the injection system seems plausible. I would advise a thorough inspection by a qualified technician.

Thanks. I will take your advice and bring it to the workshop. The repair ended up being exactly as you suspected, the AdBlue output from the tank to the dosing unit was defective. Cost me 250€ to fix.

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