To fix oil leak from the plastic oil filter housing bracket.
Replace Oil Filter Housing Bracket, Oil Cooler Gasket, Coolant hose to Aux water pump, Coolant hose from aux water pump, PCV breather hose, Brake Booster Vacuum Pipe with Non-Return Valve, VAG G13 Coolant.
Drain coolant, remove radiator fan assembly, drain oil from oil cooler and oil filter.
Remove hoses to Aux water pump, remove coolant hose from oil cooler, remove oil filter bracket.
Clean and install new oil filter bracket and oil cooler.

Oil Filter Housing Bracket 06F 115 397 H
Oil Cooler Gasket 06D 117 070
Coolant hose to Aux water pump 1K0 122 063 G
Coolant hose from aux water pump 1K0 121 063 J
PCV breather hose 06F 103 235 A
Brake Booster Vacuum Pipe with Non-Return Valve 1K0 612 041 GM
VAG G13 Coolant