- Aug 21, 2008
- ON, Canada eh?
My aunt brought me her VW 2.0L TSI Tiguan last night because her check engine light was on and the car wasn't running well it stumbles a bit at idle and didn't seem to have a lot of power. (80,000km / 50K miles) My dad asked me to look at it for him because he's not up to it and can't say no to family. (Of-course I obliged) She took it to VW for diagnoses as she was due for an oil change anyway and they told her it needed a valve cleaning and it was $800 CDN. We went to Canadian Tire and got a can of CRC Turbo Valve and Intake Cleaner and treated the vehicle which was a royal PITA because of the way the air ducting runs. We had to spray it from underneath which was a pain being -20 (-4F) here currently with snow on the ground and without me having a garage. Oh well. We let it soak and then took it for a good drive as per the instructions. Use the straw from a Seafoam spray can that is bent for sealing it to the air intake. Works great in this application for CRC. At first it felt like it was flooded when you would step on and would hesitate, it then quickly loosened up and by the end of the Italian Tune Up drive we took it on it was purring like a kitten. I reset her check engine light and monitored the cylinder for misfire using my dad's scan tool which can do OE type monitoring and tests (Snap-On) and it didn't count any on a quick test drive after resetting the check engine light. Previously it was misfiring on 1 & 4 intermittently. Hopefully that is all it needed. I wish I could have gotten pictures of the valves with my boroscope but this engine is a PITA to do anything on so I didn't bother but it was a night and day difference with the treatment so I wanted to share it here in case it can help anyone else. I advised her to use Top-Tier only (she uses whatever is cheap so probably top-tier and non at times), I also advised her to use a fuel treatment every 6,000km (3750 miles) or so to keep the injectors firing optimally to help limit poorer combustion contributing to the problem. Told her to change her oil more often and we ordered her a catch can to put on in case it will help like my cousins Veloster. My uncle can empty it, he's a pretty hands on guy with most other things. We also advised her to take it for an Italian Tune-Up run on the highway as much as possible as she does mainly city driving with some highway. She was cursing VW having come from a Nissan Pathfinder before. I told her that all OE's are moving to Turbo and Direct Injection and that some are managing it better than others. I can feel her pain though. 80K KM (50K Miles) and already it's an issue and she is aware of my cousin having issues with her Veloster at 30K KM when it was new.