Can anyone tell me how to safely lift off the plastic engine top cover of the 2.0L TDI 140 engine in my 2006 A3 Sportback? I have been told that you lift the sides and then slide it forwards (after first removing the dip-stick). I have tried this, but it just won't budge. What am I doing wrong? Just how much force can I use without breaking something important? Any advice much appreciated.