12-01-2011, 08:51 AM
Officially Welcomed to the 'Fest
Location: Boca Raton, Florida
Join Date: Sep 2010
Mein Auto: 2013 ML63 AMG, 2011 750Li
Noise related to air conditioning/braking and other issues
I have a 2011 750Li (Oct 2010 build). For some time, a few times a week, I notice what sounds like a belt rubbing when I brake. The sound gets louder the harder I brake, yet goes away when either the air conditioning is turned off or I stop braking.
Has anyone ever experienced this and what was the remedy? My car is just now due for its 15,000 mile service, so I'll bring it up with the service adviser, but I'm concerned that they might not find the problem as it is completely intermittent.
Also, some other interesting problems I've had up until now and will bring up at service (in case others have experienced something similar):
o Noise/rattling coming from the driver's door. It's almost like the door might be open 1/8" or something and isn't completely sealing/closing.
o A small piece of tire tread pealed off the tire and was smacking into the flap behind the tire (rear driver's side). It damaged the plastic flap badly. The tires are 20" Good Year run flats.
o Sometimes a DVD doesn't load and just sits there with a black screen. It takes multiple tries (loading a different DVD and then back to the one I was trying to load) to get the DVD to finally work. I'm guessing this is a software issue and an update might resolve this.
o When I turn the car off, it sometimes complains that the seat needs to be calibrated. I haven't figured out if I can do this myself or if it's something the dealer needs to take care of. This recently started out of no where.
o Run flat tires seem to need more air refills than non run-flats. Is this a common issue?
2013 Mercedes-Benz ML63 AMG Loaded
2011 BMW 750Li Carbon Blk Metallic, Oyster/Blk Nappa Leather, Ash Grain Trim, (Camera, Cold Weather, Driver Assist, Luxury Seats, M Sport w/20" Wheels, Premium Sound, Rear Entertainment Pkgs), Integral Active Steering, Instrument Panel w/ Leather, Ceramic Controls, Head-up Display, Smartphone Integration, Combox
2004 BMW 745Li Titanium Silver, Black Leather
Former: 2008 BMW 750Li, 2001 Audi A6 2.7T, 1998 Ford Expedition, 1993 Lexus ES300