Very strong exhaust/foul smell inside VW Jetta car upon rapid acceleration this smell occurs very often (several times a day) when the car accelerates rapidly (for example, when passing another car etc.) we've being trying to resolve this issue for a long time: Changed filter, VW said it was the catalytic converter and changed it, but the smell came back. This strong smell is causing my kids to cough and is unbearable. VW is now refusing to do anything further and every time I ask the local dealer to diagnose it, they charge me a large fee and do not solve this issue.

- San Jose, CA, USA

The vehicle exhaust gas recirculation cooler leaks exhaust after 50,000 miles, exposing the vehicle occupants to exhaust gases. Although the egr system is purely for emissions control, the dealer refused to fix the part under the covered emissions warranty. This problem can cause the death of the occupants of the vehicle.

- Randleman, NC, USA

I have a 2006 Jetta tdi, failure occurred on interstate I - 65 on 7/1/09 I heard a pop as if something fail out from under the car, all the oil dropped out of the vehicle all over the interstate for approximately 1 to 2 miles. Nothing has been done to correct the failure.

- Goodlettsville, TN, USA

The check engine light came on, but only after causing serious damage to the engine, which was not covered under warranty on a two year old car. I pulled over immediately and had the car towed to the dealer. The exhaust converter had to be replaced. It failed the day after I picked it up. I took it back, they replaced it and it failed again. I am now on my fourth one. VW says they know it's a problem, but still made me pay to have it replaced.

- Sandy, OR, USA

In the last few weeks my husband and I have noticed a chemical smell similar to wet paint occasionally emitting from the A/C vents. In the last two days, it has become constant and I have refrained from using the A/C for fear that it is something harmful. We have looked the car over, ran the A/C and blower while out of the car and checked everything we can think of with no solution. The dealership suggested we spray lysol in the air intake and see if that helps, but I do not want to mask the odor especially if it something with which we should be concerned.

- Markham, VA, USA