I'll say it again. YOU HAVE THE RIGHT TO HAVE WHOEVER YOU WANT REPAIR YOUR CAR!!!! These companies have these "preferred shops" for a reason. If you don't know of a good shop, ask around. Someone has had good, quality repairs done by someone. Good shops are out there.

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95 SL500 Smoke Silver, Parchment 64K
07 E350 4matic Station Wagon White 34K
02 E320 4Matic Silver/grey 80K
05 F150 Silver 44K