When I was standing in the city at the traffic lights it was smoking out of the hood (left front) – and it was stunk badly (in my opinion after ÖL). Then I got to the right and saw under the hood – the smoke came from the cracker / exhaust. But then it had to continue driving – it still smoked a little. When I arrived in the workshop it no longer smoked – demonstration effect. The car was then checked on the stage – it is all dry, it is nothing to see. The technician meant – the DPF is now in the engine room – it is getting very hot (~600 degrees) – and there should be something burned. Whatever that has been!? I have seen that the car the last KM also needed a lot of fuel – my cut is at ~7l – he needed short ~20l lt. Display. Does someone know the phenomenon? If you are driving that doesn’t smell so much – but I have found it in the interior of the Volvo forum – I have read some similar ideas.