Car: 2003, 1.9 tdi SE 130. Bit of a strange one this, the last two mornings whilst the wife has been driving to work, the car has become sluggish and lost power about five minutes into the journey, she said it felt like the turbo wasn't working (not bad for a wifey eh!), on Monday I shot over to her work to have a look at the car and it was absolutely fine, no issues found, no warning light came on, holding boost with no apparant split hoses and fine for the rest of the day. The same happened again today, but not as much power loss, again the car is fine when it has been restarted. I'm new to this Audi lark but the only thing I can think of right now would be a temperature sensor or similar maybe? Any advice would be appreciated. Thanks Glen.