DPF Question

[Qemists]

Bear with me here, i need to be pointed in the right direction. I don’t own this car, but i have it for 3 days as a favour for the owner (drove a party of three to airport, will pick them up sunday, airport is 90km away).

Wednesday owner had it for service, changed DPF and oil, $600 job, Thursday (yesterday) we drove to airport, halfway there during a downhill i-Stop feature kicks in and car won’t start without turning ignition off and then on again, car starts with DPF warning to do DPF maintenance, and is jerky when throttling back up to traffic speed. Drives ok, but harder acceleration «jerks», like it’s limiting or something.

Owner texts service man while we drive, he replied that it worked fine when he did a test run 24 hrs before, and we should contact a dedicated Mazda-service. Disregarding any responsibility.

We continue driving, all good-ish, can drive fast but not accelerate hard, i return home, total trip 180-ish km. More than one hour continuous driving above 60km/t, at times 90km/t both ways. DPF warning still visible. Now it’s friday, and service man just said take it to a Mazda-service, i must pick owner up again Sunday.

As i said, i don’t own this car, i’ve looked trough the manual, none the wiser, and it is too much to learn about a car in such a short time.

Can someone give me directions of what to do? I feel like the service that was done Wednesday is too close in time to not be related. Should i go there and have them look at it? I do not feel comfortable driving back to the airport sunday without getting this looked at, am i right to do so?

I just don’t get it, DPF and oil was changed Wednesday, and 24 hrs after that all this starts.

If i take it back to the place that did the service, what should i say?

Thanks in advance for any tips on this!

 

[ruthrj]

I’m not sure there’s much you can do yourself. This is between the shop that did the service and the vehicle owner. It sounds like the shop didnt fix the issue with the diesel particular filter. I’m guessing it was brought in by the owner for the issue you are currently experiencing, it’s not something a mechanic would replace or work on without a sign that something needed to be fixed.

As the issue came back up after the DPF was serviced or replaced, it sounds like the issue is out of the shops expertise to fix which is why they’re saying go a Mazda service center.

90km is a really far distance and I understand the concern. Let the owner know you’re worried about causing damage to the vehicle or getting stranded on the way there. I’d use another car if available, owner might have to rent a car. I wouldn’t stress too much as you’re doing them a favor, I wouldn’t expect somebody else fixing my car to pick me up at the airport.