I had some funny dealings with my local vw commercial. Of course I’m not implying that are all the same. Last time I ordered a add blue delivery unit. Ordered for next day delivery, 3 day later went in to collect it, because they never called me. Guy can’t find if. After two times going in the back, comes back with a battered box, taped with masking tape? I open the box in front of him, bolts falling out , and bag ripped out. Pump without plugs on the add blue line and inlet. A used part that can’t be returned because it’s a electronic part. All crystallised inside by previous add blue use. At the tune of 378 quid. I said straight away, how can you sell this? I want the new real thing. Sorry sir, I will order a new one for you, ready to pick up tomorrow late morning.
They do offer a service plan, but it’s cheaper for me to service abroad. My cousin runs a garage In Düsseldorf, that’s where I get stuff done. My dpf costed me €1800 in there, in UK £3k fitted.