Cooling System Co2 Content, Checking

Special tools and workshop equipment required 

• CO2 Coolant Tester :VAS 531 009 

• As an additional test in connection to the compression pressure test or the loss of pressure test, the CO2 content in the coolant expansion tank can also be measured. A raised CO2 content in the cooling system indicates a leak between the combustion chamber and the cooling system. The CO2 content can be determined using the CO2 Coolant Tester :VAS 531 009  . The procedure for this is described in the operating instructions of the CO2 Coolant Tester.