Boost Pressure Limit Reached (BLS) (Solution)

It could be caused by a leak in the vacuum hose connected to the turbocharger.
It can also occur very sporadically.

Testing with a vacuum pump to determine if the can maintains its internal pressure for an extended period.
For vehicles manufactured from 2008 onwards, the battery can be replaced individually.

Vacuum sensor: 03G 198 716
Disposable setting gauge: 03G 012 233.

Information on assembly and adjustment can be found in the technical documentation.
to be found (in the repair manual). Chapter: Replacing and adjusting the ATL.