Jetta III L4-1.9L DSL Turbo (AAZ) (1993)
Fuel Filter: Service and Repair
Fuel Filter, Draining
Fuel filter (Diesel engine), draining
Note: Do not allow diesel fuel to contact coolant hoses. Wipe any diesel fuel off hoses immediately and wash hoses with soap and water.
Remove retaining clip -1-.
Remove control valve -2- with fuel lines connected.
Loosen drain screw -5- (on bottom of filter) and drain approx. 100cc (1.7 oz.) of fuel.
Install control valve -2- with fuel lines connected.
Use new O-ring
Attach retaining clip -1-.
Tighten drain screw -5-.
Check fuel system for leaks (visual inspection).
Rev engine several times and let idle. Fuel flow through transparent pipe must be free of bubbles.