Dismantle: Caution ! Hot liquid.
Release overpressure in the coolant system. Lift up the car.
Dismantle lower engine cover.
Loosen right side of front spoiler.
Place a vessel under, insert a hose in the coolant and drain.
Close the tap and reassemble spoiler.
Dismantle front exhaust pipe.
Dismantle heat shield lower nuts and the screw. Lower the car.
Dismantle upper engine cover.
Dismantle screw for the oil check pin pipe.
Dismantle turbo inlet pipe and plug it.
Dismantle turbo pressure pipe and hoses. Plug.
Dismantle pressure hose from throttle and pressure pipe.
Dismantle upper coolant hose from thermostat and fold.
Dismantle coolant pipe from engine.
Dismantle coolant hoses from coolant pipe.
Dismantle lower coolant hose from coolant pipe.
Loosen upper transmission hood front screws.
Dismantle coolant pipe.
Loosen coolant fan connector and dismantle heat shield. Lift up the car.
Dismantle temperature sensor from catalyst.
Dismantle catalyst lower screws.
Loosen nut on clip. Bend apart. Remove the catalyst.
Assembly:
Clear surface areas and assemble the catalyst with a new gasket. 20Nm.
Assemble catalyst lower screws.
Assemble temperature sensor on the catalyst. Lower the car.
Assemble heat shield and assemble coolant fan connector.
Assemble coolant pipe with a new gasket.
Assemble transmission hood front screws.
Assemble lower coolant hose on the coolant pipe.
Assemble coolant hoses on the coolant pipe and to the engine.
Assemble upper coolant hose on the thermostat.
Assemble pressure hose on the throttle and pressure pipe.
Assemble turbot pressure pipe, hoses and turbo inlet.
Assemble screw for oil check pipe.
Assemble upper engine cover. Lift the car up.
Assemble heat shield lower nuts and screw.
Assemble front exhaust pipe with new gaskets.
Assemble lower engine cover. Lower the car.
Bleed the coolant system.
When new pre catalyst is assembled use function ”Pre catalyst replaced”.