Jetta L4-1.9L DSL Turbo (AAZ) (1997)
Fuel Filter: Service and Repair
Fuel Filter Servicing
Fuel filter (Diesel engine), replacing
Note: Do not allow diesel fuel to contact coolant hoses. Wipe any diesel fuel off hoses immediately and wash hoses with soap and water.
Removing:
Remove retaining clip -1-.
Remove control valve -2- with fuel lines connected.
Remove fuel hose -3- (feed from fuel tank) and -4- (feed to injection pump).
Direction of flow is indicated by arrows
Do not reverse connections
Installing:
Install control valve -2- with fuel lines connected.
Use new O-ring
Attach retaining clip -1-.
Attach fuel hose connections -3- and -4- with hose clamps.
After installing filter:
Check fuel system for leaks (visual inspection).
Rev engine several times and let idle. Fuel flow through transparent pipe must be free of bubbles.