'Taltosss' and anyone else having this noise at the startup should get the car checked out... I have got my car looked at, as I have mentioned in the last post to this forum - I have had pistons replaced, piston rings, vvti cam gears - and today - timing chain, tensioners and guides all replaced... engine was dropped out... now the noise isnt there but will be checking in the morning as it is most prominent in the mornings on cold starts. Another noise that is annoying the sh!t out of me when I pull up to reverse in the driveway, as I put it in reverse I get this clicking noise... i think it could be the brake calipers engaging and then dis-engaging, anyways I am going to take it back and find out wtf is going with that..... Safe driving to all - hint: try not to go off at the dealers.. this was a pretty hard problem for the engineer guys to diagnose if they can't hear the noise, which was my case for last 12 months almost... update: at 10:00pm, aftwer having the work done to the car such as timing chain, guides, tensioners , the nosie has re-occured........ not happy jan.... i am F54king ******.