SEAT Workshop Service and Repair Manuals

Removing and installing heat exchanger Special tools and workshop equipment required

t  Drip tray for workshop hoist -VAS 6208-

t  Hose clamps, up to 25 mm -3094-

t  Engine bung set -VAS 6122- t  Compressed-air gun, commercially available Removal: –  Disconnect battery → Electrical system; Rep. gr.27.   WARNING When the engine is warm, the cooling system is under pressure. Hot steam/hot coolant can escape - risk of scalding. Cover filler cap on expansion tank with a cloth and open carefully to dissipate pressure.

–  Mark and clamp off coolant hoses in engine compartment using hose clamps up to 40 mm -3094- and remove from heat exchanger.

–  Push a piece of hose -A- and -B- onto both connections to heat exchanger. –  Hold a container -C- under hose from lower connection -B-. –  Using a compressed air gun -D-, carefully blow coolant out of heat exchanger into container -C- via hose -A-. –  Remove heater and air conditioner unit → Chapter. –  Dismantling heater and air conditioning unit → Chapter. –  Remove heat exchanger. Installation Installation is carried out in the reverse order; noting the following in the process: –  Pay attention to the installation position of coolant hoses and gasket between heat exchanger and plenum chamber bulkhead .

Gasket between heat exchanger and plenum chamber bulkhead   Note After renewal of heat exchanger, renew coolant. –  Fill coolant → Rep. gr.19.