Alfa Brera V6 tapping noise on starting?
I have a Brera S V6 which I love. It has done 70k miles now and has been serviced at all the correct intervals. A few thousand miles ago just before its last service I noticed it was making a loud tapping noise for 1-2 seconds when started from cold. It sounds as if there is no oil getting to the hydraulic lifters/tappets. Then as soon as the oil pressure has chance to build up the noise goes away. I had it serviced and this noise persisted. I am worried about the damage that it might be doing to the engine during the first few seconds of running.
I have now taken it back to a main dealer as the warranty runs out next week. They seem totally clueless (even more so than me!) After trying hard to sell me new front pads and discs which I do not need, they have told me that the noise is an oil pressure switch? Does this seem right to you guys? I thought perhaps there might be a non-return valve to keep some oil in the top of the engine, and this valve might be sticking open meaning there is no oil there on starting. As I say I am no expert but would appreciate some advice.
The car is still there and they are looking to change the switch as soon as it comes in. My concern is they will change it, it won't fix the problem and then the warranty will have expired.
Also has anyone had a problem with rear parking sensors failing and beeping when in reverse even if there is nothing there? They told me it is down to dirt on the sensor (despite having washed it yesterday).
Thanks in advance