It now has 83K miles and we own it since back in 06 when it had 27k miles and still under warranty. Never have the engine open up before until now. Yes the question is who broken them. From the picture, it doesn't look like broken recently? I guess should I question my shop? BTW, I check ECS, the VDO is only $239 a piece when BMW one is $450. That's a big difference. should I just get the VDO?

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2004 X5 4.4 Sport --- for her
1998 GS400 --- for me
1992 Legend -- totaled
1995 Civic EX -- stolen