Hello, it’s about a Cayenne Diesel year 2010. The car ran about 70,000 km. Temporarily (for a few days) the exhaust light lights up. An appointment in the PZ was arranged in the meantime, but then the lamp went out again. The demand at the PZ resulted in the answer that this could be because the DPF regenerated again. Therefore the appointment was canceled again. Now the lamp is on again. Does someone have similar problems? What can it be? Unfortunately, the confidence in the PZ…. D anke in advance and greeting, monte79