Does someone has experience with LPG.
Last year my X3 3.0 had about 96.000 km, I let built
in the additional LPG.
Now, after 27.000 km with no problems the motor-lamp
went on, and different BMW-Partner tested it.
But they say both Lambda were defect.

The problem is approximatly only wrong air, but the
BMW-Partner could not test it, because of the LPG.

Does someone has an idea how to manage this`

Best Regards
Herbert