| With or without cooling system filler -VAS 6096- |
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| Deactivate the heating. |
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| Start the engine and keep the engine speed at approx. 2000 / min for approx. 3 minutes. |
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| Let the engine run until radiator fan cuts in. |
WARNING | Steam may be released when opening the expansion tank. Wear safety goggles and appropriate clothing to avoid injury to eyes and burns. Cover the cap with a cloth and open carefully. |
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| Check coolant level and top up any missing coolant, if necessary. When the engine is at normal operating temperature, the coolant level must be at the top mark, and when the engine is cold, in the middle of the shaded area. |
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