2009 Volkswagen Jetta TDI 4dr Sedan (2.0L 4cyl Turbodiesel 6M)
The '09 TDI was in many ways the best car I'd owned in 20+ years. Safe, comfortable, good handling in snow, and amazing MPG (44 hwy, 37 city over 20K miles). However, the TDI has a faulty high pressure fuel pump design and complete failures are showing up all over the US due to the poor quality of US diesel compared to Europe. Bottom line? at 21K my pump failed and shot metal particles through the entire fuel system. It was all replaced (tank to injectors) at a cost of about $10K. This was covered by warranty and the dealer was great-- but there is nothing to prevent it from happening again, out of warranty. And who needs are car that may self-destruct without warning at any time? Stay away.
6M transmission, handling, fuel economy
Do not buy a TDI until VW has a proven fix for the failing high pressure fuel pumps-- this applies to all models, all years 2009-