Engine Exhaust System problems of the 2010 Volkswagen Jetta

Dealership performed 90k mile checkup. Also asked them to determine if cel p0472 was covered by warranty. They confirmed code, and said not covered under any warranty. The also advised the car is showing intermittent code of p0638 for throttle actuator control (bank 1). Written on the estimate by vw dealership is "technician noted that while driving vehicle into the shop, vehicle had no throttle control and would not increase in engine speed. Technician recommends replacing the throttle body and exhaust pressure sender. Technician recommends customer not to drive vehicle --vehicle will at some point stop driving (moving) - it could stop moving at any point, including crossing a intersection". I have not had any issues whatever with my throttle, but due to their documentation, it appears there is a safety issue here deserving of a mandatory safety recall.

Last year, engine light came on even though the car was driving fine. I took it to dealer and said problem was due to defect in exhaust flap. He asked me to pay $770. 00. Luckily, there was recall on the same a month later. Delear fixed it, but engine light still is on. He told me that one of oxygen sensor is faulty now caused by exhaust flap problem and said it is not covered by recall and asked to pay $550. 00. Vw refused to correct the problem. Now, I can't even inspect the car. Present problem is caused by another recalled defective problem.

2009-2013 model year Volkswagen tdi vehicles sold in the united states contain an exhaust restrictor valve that controls the regenerative feature of the diesel particulate filter (dpf). This flap is experiencing abnormal failure rate between 25000 and 70000 miles. Volkswagen is denying claims to replace these exhaust restrictor valves when they fail, and is asking customers to pay for replacement. Long-term malfunction of this valve results in non-compliance. The valve design has been updated several times, indicating that a defect was present in the original design. . Read more...

1. Driving normally on highway when it came on and the car lost power suddenly and could not accelerate any further. Also car stalled several times on its own while idling at a traffic light (its an automatic transmission this should not be happening). 2. This is the second time this same problem has happened in first 20k miles of this vehicle its an 2010 vw tdi. First time it was at 9800 mile mark same light and problem came on they replaced a egr valve and now again at 19800miles. 3. They have replaced a part at 9800 miles and now replacing it again at 19800miles. It seems to be a repeat problem with this vehicle and very dangerous to have it slow down like that while driving and also stall out while in traffic.