Three problems related to ignition coils failure have been reported for the 2011 Volkswagen Jetta. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Volkswagen Jetta based on all problems reported for the 2011 Jetta.
While driving on a city street my check engine light came on and started blinking then stopped blinking and is now on along with the epc code. This is the 3rd time in 2 years my vehicle has done this so I know its the ignition coils causing a misfire. My vehicle now shakes when im stopped and has a ticking sound at red lights, this is very unsafe and needs to be corrected 3 times in 2 years is way to many times for my ignition coils to be replaced.
Driving down the highway at about 55mph, started switching lanes and stepped on the gas to accelerate. The car sputtered and the engine vibrated. The car felt like I was going to stall driving in the high-speed lane. The yellow check engine light came on and epc light started flashing. Swerving back into the lower speed lane I couldn't even keep the car at 55mph. I had to pull over on the highway to see if I could make sense of it. After turning off the car and then back on, the lights went off and the car was fine. I took it too the mechanic and they said they couldn't find anything wrong after $85. 00 diagnostic. The car ran fine for 2 days until the same exact thing happened while driving on the highway again. This occurred on and off intermittently about every 1-2 days for about 2 weeks. Three trips to the mechanic within those 2 weeks and with each visit there was a computer connected to the car and a full systems diagnostic reported that there was nothing wrong with the car. It became dangerous for me to drive the car and even more so to drive it on the highway. After the second week the lights finally came on and stayed on and the problem was diagnosed as the engine misfiring in 2 of the cylinders. The mechanic changed with the ignition coil on 12/15. 2014. The engine ran completely fine without any issues until last week, 3/19/2015. At 3 months and only 28,000 miles on the car the same problem started to reoccur while getting onto the highway and attempting to accelerate from 40-45mph. It started just as it did before intermittently and about 2 weeks later the engine and epc lights were on permanently again. After the mechanic confirmed that it was the same issue with the same component we changed the same part again. I am expecting to be changing it again in 3 more months, if I still have the car.
While attempting to accelerate car sputtered, and hesitated while losing power. Regained power briefly then sputtered, lost power and engine cut off completely. Started engine after letting sit for a few minutes drove home ok. Happened again a week later and took it to dealership. Dealer diagnosed it as faulty ignition coil and arcing.