05 TD4 HSE here (the ‘1b’ I guess!). It’s been a godsend today, flying up stuff where mere mortals have come to a halt, and down stuff totally in control with the idiot proof Hill Descent. 97k on the clock, and purchased off a s/h dealer with warranty to put the ‘reliability’ fears to bed… in the 12 months since I picked it up it’s needed – new rad, new parking sensor, new boot handle, leak into boot fixing and some wear and tear stuff (pads, tyres). None of the above covered by the warranty 😈
So IMHO yes, unreliable, but great in the snow/mud, and a spot on for chucking bikes/gear/dog/wife in for weekends away etc. And yeah, heated seats that make you feel like you’ve wet yourself.