Being a 9 year customer of BMW Sterling - I have a...

Being a 9 year customer of BMW Sterling - I have always trusted their diagnosis and resolution of all my BMW 335's needs. On Wednesday I brought my car in for a recall item ( that I had to reach out to them for) that causes the car to catch fire- the fan motor electrical harness. My service rep Carlos had the entire car looked at while I was there and sent me a photo of an oil leak allegedly from the valve pan cover gasket. They quoted me a $2000 repair bill for this item as well! I informed Carlos that I only wanted the recall item dealt with at this time and that I had never noticed oil leaking on my garage floor or odor coming from the car of burning oil. Guess what I experienced when I picked up my vehicle- A STRONG BURNING OIL ODOR with SMOKE as well! So my immediate response to this: 1. Did they intentionally squirt oil on the exhaust manifold to encourage me to do the $2000 repair or 2. Did they damage the car during the recall repair. I will pursue the service manager on Monday and if no satisfaction will complain to BMW NA and the BBB.
I will report back on my experience and adjust my review accordingly.

I have never been disappointed in over 4 years of service visits to Sterling BMW! Today my service rep Matt replaced a brake pad sensor at no charge even though my 335 is newly out of warranty-
As usual, they provided a free loaner car ( a new 328 convertible! today). Phones are always answered promptly- and everyone is friendly;helpful. Their new service center is awesome- I will be back for my next car purchase at BMW or Sterling