I typed my reg number into Euro Car parts and it's showing me 2 options for port type,
10mm (Ø 4 mm) and
12mm (M5/3Nm)Any ideas?
1998 Golf 1.9 TDI (AHF)
I don't have the means to remove the plugs right now, plus it's absolutely pouring down!
(Edit, just realised links don't work. Reg is T480SNP if you want to take a look.)