What garage are you taking it to, a main dealer, Fiat specialist or general?
What are they using to scan the car with? Unless it is Fiat specific software it could be missing a lot.
Did they do a forced re-generation before "cleaning" the DPF?
How did they clean it, physical removal, fuel additive, spraying something down the air intake?
This could b any nmber of things and it sounds like the people looking at it may not have the skills / equipment required.
If you bought it from a dealer you need to get them to sort it out. These days you have a lot of rights as a consumer buying a used car.
Robert.
It was bought from a used car showroom.. its one of the ones that has hundreds of cars and has branches nationwide.
This
appeared 20mins after I drove the car away and went to put fuel in. Its been on everyday since the start or July.
4 times its been in and scanned. Twice just for this and the other 2 times when the start/stop failed and the engine light came on.
Everytime I park it at their care centre I take a photo of the dash, and then I've picked it up and get told the light isn't there. I show them the pictures and they then make me rebook (3wks for the next spot) where it would be looked at by someone more skilled. It comes in and the same happens.
The engine light came on and was dealt with at visit 3, it then came back on with the same message a week later so was booked for visit 4 last Thursday.
This time, I was unable to collect it by the closing time, so I sent my father the 30min drive to get the car and move it outside their gates so I could come after hrs and collect it.
He checked the car before moving it and pointed out the
was still there (but the engine light and message had gone).
He asked why they couldn't see what was wrong and the mechanic asked how it was driven (first one from 4 goes to offer an opinon). From buying the car at the start it July it was mainly short drives to and from work and the odd run of about 30mins if we went anywhere but at the end of July I made a trip to and from Newcastle, which was 50+mph constantly.
They said it was because I wasn't going fast enough to re-clean the DPF and the warning triangle was the car saying it was trying to reset the cleaning procedure.
With the light coming on as soon as I put fuel in on day one, and the fact it hadn't gone off at any point during the trip to and from Newcastle when I was putting more revs and speed into the system, He doubted this theory (plus the engine light appearing 1 week after they gave it a clean and test run).
He then sat in the car, revved the engine for a period (2 mins). Restarted the car and the light went off. This was the first time it had been off in 2 months. He said this would need to be done if it appeared again to force the triangle fault to reset as it'd think I'd been driving the car at a higher speed and start regenerating/cleaning.
When I got to the car later that evening, I started it up, and the triangle appeared.
I revved the engine up and down as they'd instructed to my father, restarted the engine.. and it went off. I drove home and it stayed off.
Saturday morning it was back. So before I left work, I redid the rev and reset and it went off.
Today we've been out for shopping and again, it was on when we set off.
I don't think I should have to perform this every day especially as its reappearing, but if I don't, and the start/stop engine fault comes on again and it shows up the DPF again I'm stuck driving it 30mins to their centre and then leaving it overnight for my dad to take me back, or waiting till the day in the week I'd have off (which would be the week after I drop it off) and get a train/bus to collect. When the engine light comes on, it also goes into 'limp mode' which means anything but a straight road is done at a slow pace - plus a rebook would be another 3 weeks driving like this.
I'll leave this reply here.. and go find my paperwork for the work they did..
