Get it looked at and don't be fobbed off by 'it's normal' could be a multitude of things.. basic home checks are correct oil grade used and upto level..
If its the hydraulic lifters, its fairly common with the M156 engine for them to be noisy if oil level is low and, or if the car hasn't been started in a while.
If its the hydraulic lifters, its fairly common with the M156 engine for them to be noisy if oil level is low and, or if the car hasn't been started in a while.