00 00... Checking coolant level In event of topping up: checking concentration

Check coolant level in expansion tank. Coolant level must be between Min. and Max. markings. If necessary, top up coolant to max. fill level. If there is no coolant, also identify the cause and notify the customer.

Check concentration with antifreeze tester in coolant expansion tank.

If necessary, drain differential quantity at coolant drain plug and top up with recommended coolant.