bioTDI
Well-known member
I've read up on the common problems around the VNT15 turbo. My old one was gunked up and the lever wasn't moving by hand, so I had my mechanic clean it and it worked great for about 6 months, then it stopped working again, same problem. I had him replace it last week with a remanufactured VNT15 and now that one's not working. He pulled vacuum manually on the actuator while driving and nothing. When he pulls vacuum, the lever moves, but no boost. The lever moves as it should when the engine is started, it moves when pushed on manually or under accelleration (ie under its own vacuum), but it's not boosting.
I asked him to double check the intercooler pipes and everything and he says they are all connected. I have no idea where to go from here, what else to test, and I've spent almost $2000 on turbo bills in the last 6 months. I've never had this many problems with any other car, and I've been driving VWs and other diesels my whole life.
I asked him to double check the intercooler pipes and everything and he says they are all connected. I have no idea where to go from here, what else to test, and I've spent almost $2000 on turbo bills in the last 6 months. I've never had this many problems with any other car, and I've been driving VWs and other diesels my whole life.