Checking for air leakage in exhaust system: Connecting
CAUTION:
If the car has been driven recently the exhaust system can be very hot, let it cool down a little. Otherwise the special tool may get burnt.
Remove the exhaust tail pipe.
Install tool 9995546 with pressure regulator 9995544 on the exhaust system.
Adjust the pressure to 0.4 bar . Depending on the condition of the exhaust system a lower pressure may be necessary.