New to forum as car is my wife's but had a question. Noticed this past summer that on each end of the middle horizontal section of the grill that it was warping and separating. The car is a 2005 with 14K on it. At the time not that bad and was symmetrical. Had her tires replaced today with run flats after she has been stranded twice in last 6 months and one of the guys in the shop who seemed to know alot about Mercedes and the frame that this car was built on pointed out the warping. It is much worse than when I saw it this summer and he thought it was coming from heat from the power steering lines that run to a cooler. It is to the point where grill is turning in and has scratch the paint in the middle section and will not go back into restraining clips. Is this a common issue? I glanced through threads and did not see any mention of it before. This car is in Austin TX where is can get pretty hot in the summers although she does not let the car idle more than you would have in evening traffic. Anyway, I see this as a warranty issue and I am just looking for anyone who may be aware of this issue.

Thanks in advance,
George