Have had the 535xi for 3 months and love it. No issues. 2 days ago i headed up a relatively steep paved hill at about 25 mph when the car started to vibrate. It felt like the transmission was slipping in and out. Lasted for 20 seconds. I am not sure how to check the transmission oil level as yet so if you can tell me THANK YOU. Appreciate the help.
Wondering why the car acted like the transmission was slipping? on 2007 BMW 335xi
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