Trying to deal with a limp mode in my 2004 Golf. I am overwhelmed with the complexity and also the crammed engine compartment looks like a nightmare. My previous VW, 1979 VW Rabbit diesel was really easy to understand and work on. This forum will be important and necessary as I try to work through this. I also ordered a Ross-Tech code reader to help. So, thanks to all who make this forum possible. I thought first my problem might be caused by a deer accident on the right front fender. It looked like some connections on the intercooler became loose, but no issues there. I think now that the biodiesel I make is not clean enough and has caused deposit issues in the turbo. I used B50 in my car and only had some fuel filter issues which were easily fixed. So, I hope I didn't damage my car . I will check the VNT actuator system this morning.