Sorry to hear that. Almost every other TDI owner has better luck than yours.
But there is something with diesel engines. Some people seem to attract bad luck with them, getting problem after problem with one car after another. Some people steer free of problems for a very long time. I see this with some of my colleagues. Bad luck, or maybe bad driving habits - bad for diesel engines, that is?
My wife had a '86 Golf (Rabbit) Diesel. She only drove it for 2000 km per year, but managed to blow 3 head gaskets and 1 radiator hose, bend 1 front suspension and have several minor issues in less than 2 years. She drove it like she meant to kill it, and it worked.
When my Civic graciously withdrew to the eternal rust fields I took it over and bought her a Suzuki Alto (petrol). She drove it like mad too, but it held up to that.
Meanwhile I added some 60.000 km in 2½ years to the already stretched odometer of the poor Golf. Everything plastic disintegrated from old age in that time, but I had 0 mechanical problems. Until a jerk cut me and slammed his ABS brakes and I hit its back, unable to stop in time cause of the glazed drum brakes (did I mention she kept the handbrake on on more than 1 trip? Boy do I hope she does not read any site mail containing this
... Darling, if you read this I love you like nothing else, you come first even to my Insight!)
Anyway the Golf was financially totaled, and though fixable I did not feel safe in it anymore so I bought a Nissan Almera that made way to the Insight recently. I was about to buy a diesel, even to take over a Seat Ibiza ST from some other parent on my kids' school, but test drove one and read some consumer reports and shied away just in time.
The built quality on the Insight, though not perfect, is in a totally different league from what I saw in the Seat and it stable mates from Skoda and VW.
One simple example: The indicator stalk on the Seat was hollow, made of two plastic shells with a seam right where you touch it to change direction. I really did not want to touch that anymore after a while. The turn signal really did turn me off. Course that can be fixed, but the rest of the car was the same. Once a car can or needs really be improved with duct tape, it can still be a good car but the luxury feeling is gone.
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gigameter or 0.13 Megamile.
For confirmation go to people just like you.
For education go to people unlike yourself.