E90 320i 05

Question by Solo posted 6 months 2 weeks ago in BMW

My Engine is stalling on idle when driving the revs will fluctuate by 4 or 500 the dash is sometimes showing 17 / 18 litres per 100 Ks. I have changed the valvetronic motor and cleaned and checked the vanos valve dont know where to go from here hope someone can help out.

Thanks in advance