In this video we will be be having a look at a cam follower replacing it after 20k .The high pressure fuel pump and cam follower is a common FSI failure. Checking the cam follower is basically maintenance. engine codes with this type of follower BGB BUL BWE BPG BWT BYK BPJ AXX AXW BMB BLY BLX BLR BVZ BVY BWA BHZ BPY BZC CAW CAWB CAXC CDL CDLA CDLB CDLC CDL