Faulty additive dosing module (ADM) or additive tank - DPF

WilBo · May 13th, 2023, 17:44

Hi,
I'm having problems with my DPF regularly getting blocked and failing to regen. Once it happens, I can usually manage to clear it enough to regen using a spray in the temp sensor hole cleaner.

I'm pretty sure the root cause is either a faulty ADM or a faulty additive tank. I filled it a year or so ago and have done a few thousand miles since but the level is showing as 15/15, which I am assuming means that it has not been dosing the deisel when I refuel.

Does anyone know how to test the ADM or the tank to try to work out which is faulty?

Some background:
- Volvo C30 1.6D 2010, 54,000 miles
- I have had problems with dodgy pressure sensors and sensor tubes in the past but replaced both not long ago
- When I refilled the additive tank with PAT fluid, I primed the system and successfully reset the counter

Any help or suggestions would be gratefully received. It's so frustrating. It's a great car apart from the ongoing hell of the DPF problems.

Cheers,

May 13th, 2023, 17:44	#1
WilBo Junior Member Last Online: Jan 8th, 2024 12:04 Join Date: Oct 2018 Location: Brighton	Faulty additive dosing module (ADM) or additive tank - DPF Hi, I'm having problems with my DPF regularly getting blocked and failing to regen. Once it happens, I can usually manage to clear it enough to regen using a spray in the temp sensor hole cleaner. I'm pretty sure the root cause is either a faulty ADM or a faulty additive tank. I filled it a year or so ago and have done a few thousand miles since but the level is showing as 15/15, which I am assuming means that it has not been dosing the deisel when I refuel. Does anyone know how to test the ADM or the tank to try to work out which is faulty? Some background: - Volvo C30 1.6D 2010, 54,000 miles - I have had problems with dodgy pressure sensors and sensor tubes in the past but replaced both not long ago - When I refilled the additive tank with PAT fluid, I primed the system and successfully reset the counter Any help or suggestions would be gratefully received. It's so frustrating. It's a great car apart from the ongoing hell of the DPF problems. Cheers,

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)