[Osgoood1]

today a technician hear that noise and told me that is a knock-sensor related noise and it is completely normal... I think this should not be normal... there have a strange diesel engine-like noise when accelerating 1500 to 2000 rpm on a petrol engine car and it is completely normal, strange....

When a technician says it is normal. Mostly means it will cost the shop to much to search non stop to find the true sound.