Skoda Workshop Service and Repair Manuals

Draining and filling up coolant Special tools and workshop equipment required t  Catch pan, e.g. -VAS 6208- t  Pliers for spring strap clamps t  antifreeze tester Draining   Note t  Collect drained coolant in a clean container for reuse or proper disposal. t  Please observe the disposal instructions.   WARNING Hot steam may escape when the coolant expansion reservoir is opened. Wear safety goggles and safety clothing, in order to avoid eye injuries and scalding. Cover the cap with a cloth and open carefully. –  Open the cap of the expansion reservoir. –  Remove the sound dampening system → Body Work; Rep. Gr.50. –  Place a catch pan under the radiator. Vehicles with engine identification characters BLR, BLX, BLY, BVX, BVY, BVZ

–  Open the spring strap clip -arrow- with the pliers for spring strap clips and push back. –  Remove the coolant hose from the support.

–  Disconnect plug -1- at oil pressure switch -F1-. –  Remove bottom coolant hose at radiator -2- and allow remaining coolant to drain. Vehicles with engine identification characters BWA

–  Unlock the quick coupling -arrow- and detach the coolant hose from the radiator.

–  Open spring strap clamp -arrow- and detach coolant hose from oil cooler. Filling up Select the appropriate coolant additive from the → Electronic Catalogue of Original Parts or from the list of allowed coolant additives → Octavia II. –  In a clean reservoir mix water and antifreeze agent in the specified mixing ratio → Octavia II. Vehicles with engine identification characters BLR, BLX, BLY, BVX, BVY, BVZ

–  Fit the coolant hose onto the coolant fitting and fasten with the spring strap clamp -arrow-.

–  Attach bottom coolant hose to coolant pipe -2-. –  Fit the plug -1- on the oil pressure switch -F1-. Vehicles with engine identification characters BWA

–  Fit the quick coupling -arrow- on the support of the radiator.

–  Mount coolant hose onto oil cooler and fasten with spring strap clamp -arrow-. Continued for all vehicles –  Install the noise insulation → Body Work; Rep. Gr.50.

–  Fill up the coolant slowly up to the top marking of the criss-crossed field (max.) on the expansion reservoir. –  Seal expansion reservoir. –  Switch off the heating and air-conditioning system. Vehicles with coolant shut-off valve of heating system -N279- l. vehicles without auxiliary heating   Note This procedure also applies to vehicles with auxiliary heating, which have no coolant shut-off valve of heating system -N279-. –  Start the engine and maintain the engine speed for about 3 minutes at approx. 2000 r.p.m. –  Run engine until radiator fan -V7- starts. 2nd Vehicles with auxiliary heating.   Caution The auxiliary heating must only be switched on, if the refrigerant circuit is filled up -as described below-. –  Connect vehicle diagnosis, measurement and information system -VAS 5051B-. –  Start the engine and maintain the engine speed for about 3 minutes at approx. 2000 r.p.m. –  On the display press consecutively the buttons for “Vehicle self-diagnosis”,“18 - Auxiliary heating system” and “03 - Actuator diagnosis”. –  Press the right arrow on the display so often until the coolant shut-off valve of heating system - N279- is shown. –  Perform self-diagnosis for the coolant shut-off valve of heating system -N279- and maintain the eingine speed at approx. 2000 rpm for about 1 minute. –  Continue to run engine until radiator fan -V7- starts. Continued for all vehicles

–  Check coolant level when the expansion reservoir is closed. l  When engine is at operating temperature the coolant level must be at the max. marking, when engine is cold between the min. and the max. markings.   WARNING Hot steam may escape when the compensation bottle is opened. Wear safety goggles and safety clothing, in order to avoid eye injuries and scalding. Cover the cap with a cloth and open carefully. –  Top up coolant if necessary.