This past week I went for a ride and got stopped at a railroad crossing. Since I noticed that the train wasn't very long I left the bike running as I waited. Just as the end of the train was approaching I noticed that the temperature of the bike started to rise significantly. Just as the train passed, I proceeded to cross the tracks to pull over to the side of the road to let the bike cool down. As I started moving I noticed that the temp started to drop. I continued slowly along until the bike reached 'normal' operating temperature. After further investigation, I found that I could replicate the problem anytime I let the bike sit and idle, even when the outside temperature was in the upper 60's (F). That afternoon I called my local CO BMW dealership/service department and asked a service technician his thoughts. He replied that since the bike cooled back down once it started moving again that he didn't think that it was anything to worry about and to just keep my eye on the temp. Not liking that response, I decided to call several other BMW dealerships/service departments to see what their response would be. Every other dealership I spoke to suggested getting the bike in asap to get the cooling system flushed as there was likely a bubble in the system. One dealership even suggested that I have BMW Roadside Assistance come get the bike since it was under warranty in order to possibly avoid any possible further issues. After hearing that, I had Roadside Assistance come get my bike. Two days days later I get a call from the service department with a rough quote of $250 to flush the system. I asked why this isn't a warranty covered issue and they told me that since the bike had been tipped over before (not wrecked/crashed, rather a very light red light nap - you can barely tell it even touched the brake lever and foot rest) that they couldn't honor that as a warranty issue. My response was that they couldn't prove that was what caused it and that I thought that was kinda weak of them not to honor it as a warranty issue since they could not prove that was what caused the issue. Long story short I went in and paid my bill and as I'm doing so the service technician at the counter tells me he doubts that was what caused the issue to begin with…. needless to say, I left confused. I should note that all work on this bike has always been done at a BMW dealership/shop. The bike had just gotten it's 600 mile service performed 3 weeks prior (serviced at 550 miles) by a different BMW dealership/shop (where it was originally purchased). The bike is a 2009 f800gs that has been garaged it's entire life and been ridden regularly but only for short rides. The bike now has 1,650 miles on it after a recent 700 mile road trip. My question to you all is: Does this seem right? I feel like I just got taken for $200+ by my local shop. The shop claimed that the regional representative has the final call on warranty coverage issues that that was his call. I feel like they are essentially telling me that since my GS has taken a light nap in the past that my warranty is no longer valid?