I have just bought a VW Passat 2.0 170 2006. It was running fine up until last week where it went into limp mode, sturggled to move.
I have VCDS connected to it, came up with the following error:
00665 Seat Belt Warning Light -K19
I cleared the error and it ran normal apart from lagging in first gear, in second it shot off!!
The error just came back today, didnt turn the car off and drove it home, connected it up (still without turning the car off) to VCDS, same error code. As soon as I cleared it, it ran perfectly, idled fine again.
Now I've read a couple of things on the internet, saying the boost control valve could be faulty, but throwing up a code to do with the seat belt??? a bit confusing...
Any help would be appreciated :-)