Stuart's Volkswagen Golf Mk 7/VII Forum

Hi Stuart , yes useful info on DPFs and active regen helping me to explain my MK 7 TDIs (3000miles ) behaviour today : my start stop was exactly as disengaged and fan ran after engine turn off . My question is despite your journey break down , I'm still a little unclear on how I should drive to optimise performance if the problem persists ( as most of my driving is city based ) should I follow your diagnostic driving plan ? Also Isn't this a little disconcerting for a nearly 4K mileage or is it normal :
Kind regards
Rory

Hi Rory,

I don't think you have anything to be worried about. I found that active regens are required every 250 miles or so. If your car has covered 3-4k miles and you have only interrupted a regen once (as indicated by the cooling fan running on after turning off the engine), this suggests the car has completed several regens without you being aware.

I don't think you need to do anything special unless the DPF warning light appears in the dash. If that happens, then go for a longer drive like the one described on my website.

Hope that helps. Let me know if you have any more concerns,
Stuart

Thanks for the advice Stuart

Oh yes sorry what’s your opinion do n supermarket fuels do you use them ?

Just read your blog on topic , Stuart I think I’ll continue with Tesco 🙂

Hi again Stuart actually , I’ve had the car approximately three weeks and in that time I think I’ve experienced active regen about three or four occasions . like yourself, the majority Of my driving is in eco-mode based around short city trips. Have I made a mistake in purchasing a diesel ? and does this active regen seem like a lot to you ? I am considering returning the car based on this and getting a petrol engine?
I Really appreciate your thoughts

Regards Rory

Hi Rory,

So you’ve had the car (from new?) for about 3 weeks and done nearly 4k miles and you’ve noticed interrupted active regens (as indicated by the fan staying on after engine shutdown) about 3 or 4 times? I think it’s likely that your car has actually completed many more active regens without issue. Like I said, I don’t think you need to change your driving behaviour unless the DPF warning light comes on. That said, I don’t think diesels with DPFs are best when the majority of driving is short city trips. Maybe a petrol engined vehicle would be better for your kind of driving.

Stuart

Hi Stuart thanks for taking the time to reply to my emails I understand you are busy. Basically I’ve had the car for 2 1/2 weeks I’ve brought it with 3000 on the clock I’ve roughly completed 1000 since then I noticed free maybe 3/4 active regens Over this time. Today I had the DPF checked and I discovered that oil ash mash was 1.8 G which I think is acceptable having read your webpage? I still have the option to return the car back to the dealership , and get a petrol engine . however , my mileage might increase over the coming weeks , months with a 50 mile round trip maybe 3/4 times a week between Northampton and Oxfordshire so I think I it might be worth keeping it..