I have a 2010 Wolfsburg Edition and absolutely love this vehicle. Just recently, after the 30K maintenance...I started having this EPC warning/check engine light and very sluggish control with acceleration. When this happens, I have to pull over, shut the car off, wait, and restart. Had it looked at a couple of weeks ago. Tons of error codes according to the service tech and he stated everything pointed to the ignition coils. He found that none of them were seated at the proper height, so corrected it, test-drove it, and had no problems. Went for a couple of days and it started again. I didn't think that was it because it just started out of the blue after 30K miles. The only pattern I have found is that it gets worse AFTER I fill the tank up (that just baffles me to no end). Thought, maybe something to do with the gas cap? I've gone a little OCD with that, triple checked to make sure it clicks. I've tried the highest octane gas from different gas stations. No luck.
Why would this just start out of the blue after 30K miles? I read on another forum (mytiguan.com) that some other guy had is happening to him after only 36 miles, not even a week old. Software glitch?
It's just weird. I can drive it to work with no problem. Get in, start and it's a 50-50 shot it will happen. Sometimes takes me 15 minutes for the car to finally start and run. The check engine light will stay on and maybe it will clear after my next stop and restarting the car. I might go 2 days without any occurrence but then it might happen 3-4 times in one day. This is very frustrating. I still, despite all this, absolutely love this vehicle, the best I've ever owned. For $33K...I expected this to be fixed yesterday.
I will keep updating this. My next appointment with my VW dealer is Friday morning. Any suggestions or experience with this would be greatly appreciated.
Thanks Leon, wow, didn't realize VWs use oil like that! It is a 2009 turbo 4 cylinder with 70k miles on it. We had a manual carbon cleanout at 30k miles, when the mass air flow flapper quit working. As a side note, the VW dealership at that time also changed the oil. When I got the car back, I checked the oil and it was filthy. The dealership showed me the mechanics log to indicate that the oil was changed, and changed the oil again at no cost. They were very proud to show me the dipstick with clean oil on it. I always wondered if they did a bad job on the carbon cleanout and if that was why the oil still looked dirty.
Some driving conditions cause the buildup to happen sooner than others. Some people get 30k miles before getting misfires, others may get 60k miles.
With these direct inject engines, it's a service that has to be done. There's no way to get around it.
Edit: MAF on this engine doesn't have a flapper. It was most likely the flapper motor on the intake manifold that failed due to the buildup. The paperwork should show that the intake manifold was replaced.
2012 VW Tiguan, 95 degree day in NYC area, had a recent oil change, ECS light on and flashing engine light on. As it is a Sunday and no dealer service centers are open, I appreciate reading all these informative stories. Is it possible that the catalytic converter is defective, I can't believe we have to embark in removing the engine, will check back on the diagnosis...it is a turbo charges engine as well. Thanks!
I have this problem now so of course I found this old thread. Is there anybody else with this problem? I have had the car for less than a week. I LOVE it and now am very disappointed that it has a problem so soon. Driving this car is awesome, when its performing normally. I have already ordered over 600.00 worth of stereo equipment for an upgrade. I don't want any other car, I just want my VW fixed!
I spent over $1600 having new plugs, new coils, a new coolant temp sensor, a 2nd different coolant temp sensor located within water pump housing replaced and FINALLY, $430 to have a new throttle body wiring harness replaced. All of this due to sputtering car, car losing power, various sensor lights and engine light coming on over period of a year. Guess what, after replacing the wiring no new codes or warning lights! I think the wiring harness was the issue all along.
I faced similar problem recently with my VW Vento. Didn't take a chance. Parked the car for night and went to the service station next day morning. After scanning they detected the ignition coil was damaged. Problem was fixed by replacing the coil. Part was not in the inventory- means it's not a matter of frequent occurrences. It took them two days to get the part and fix the car. (This morning I am told it is working fine, I am yet to collect the car). Cost: Ignition coil- 2800, Labour- 850 + taxes. Outside market quoted 1900 for the part and 150 for labour.
EPC SOLVED for now:2009 passat 2.0 tsi Epc intermittent that went into limp mode with code P0221 throttle/pedal position sensor/switch "B" I took all three electrical connectors off around the throttle body cleaned inside connectors with circuit cleaner and lubed with electrolytic grease and reassembled ... NO EPC NO CODES FOR THE FIRST DAY IN 3 WEEKS I'm keeping my fingers crossed......
Chiming in for what it's worth:
Well, I have a 2013 Tiguan with the 2.0 TSI and 4Motion, and I am now waiting for a new cylinder head to be put in. After the camshaft was replaced due to an oil screen that broke in the cam adjuster bridge and so on. Started off with misfire problems. Read my post "Question Tiguan needs new cylinder head to resolve misfiring" here on this site. Maybe helpful to know. Good luck.
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