When It Rains.....

2010 Golf TDI-- three things have come up at once: Glow Plugs, Oxygen Sensor and Diesel Particulate Filter. Where do I start? I imagine that the Filter has flagged because of the O2 sensor?
What does VW use as OEM for glow plugs? Does NGK make a plug for this model? (haven't been able to find NGK online).
What is the Particulate filter--must it be changed out or can it be cleaned?
Any info would be a big help--thanks!

The dpf was not made to be cleaned. Some have tried it with mixed results IIRC. There are places that clean dpf's but the VW model has to be cut open and cleaned. More than likely you will break the medium (ceramic IIRC) while trying to clean it. Insure that the dpf is the cause first though. What codes is it throwing?

I don't think NGK makes glow plugs for your car. And keep in mind that all of those items should be covered in the dieselgate warranty, if you're within the warranty window.