Connecting Tools

NOTE: The exhaust system may be extremely hot if the car has been driven recently. Allow the car to cool down before beginning the check. Failure to do so may damage the special tool.

Fig 1: Connecting Tool 999 5546 And Pressure Regulator 999 5544 To Exhaust Pipe

Courtesy of VOLVO CARS OF NORTH AMERICA.

Connect tool 9995546 and pressure regulator 9995544 to the exhaust pipe.
Plug the end of the exhaust pipe. Ensure that it is fully sealed.
B4204S2 engines: block one of the exhaust pipe ends.
Adjust the pressure to 0.4 bar . A lower pressure may be necessary depending on the condition of the exhaust system.