I did 195,000 miles in two 1.6 diesel C4 Grand Picasso auto’s and never had any DPF issues, funnily enough the newer 2015 one liked to do regens right after filling up, so it would often be mid-regen when I got home. I just used to switch off the car and leave it to it, fans whir for a bit then it stopped.
The 1st one needed a new DPF at 110,000 miles, but that was the standard replacement as it was full, rather than any weird issue. Not cheap, but unlikely to be an issue for a Motability user.
So I’d agree with Vinalspin, it just wasn’t an issue and my 2015 one did 75,000 miles and averaged 48mpg (2008 one averaged 53mpg – despite allegedly being less economical in the official figures).
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