Engine Mechanical
Contents
1.6na (CS)
1.9 (1Y)
1.9td (AAZ)
CCV Mod
The AAZ has poor CCV at 50deg, upgrading to a TDI CCv setup helps.
Clutched Alt Pulley
Gates 37010P
028903119AA
You'll need a tool/socket for this ebay search Bosch 8088 tool
1.9tdi (1z/AHU)
Headgasket
Sometimes you need to replace it with a new or unknown head.
If so this article on measuring piston protrusion