have had my CPO 2008 4.8i since february and have noticed a bit of steam during the rainy seasons on the driver side wheel well area. Told service about it MANY TIMES while under warranty and they said it's probably just from the rain. Today, it did the same thing, but the coolant low light came on. Same amount of steam from the same area. Pulled over in a grocery store and bought 10L of distilled water to top of the reservoir. It was short 4L. Got my vehicle home and found out the coolant reservoir had a 3" crack in it. No longer in warranty period. piss me off...

I've had so many issues with this car for the past 8 months i've had it. first and last bmw...

hopefully, only the reservoir is the only issue..