View Single Post
      11-21-2012, 02:12 AM   #15
135i OREO
Lieutenant
Germany
26
Rep
439
Posts

Drives: 2009 BMW 135i
Join Date: Sep 2010
Location: Spangdahlem, Germany

iTrader: (3)

Garage List
2009 BMW 135i  [0.00]
FYI guys, my 135i was doing this when I turned on the A/C. It was fine for a while, then one day, the fans were very loud. If I put the window down, it would sound like I had the MAXCOOL option turned on the JB4. This was in August when it was hot for once here in Germany. I didn't pay much attention to it and then in the begining of November, as I pulled into the grocery store, the fans came on full blast again, but I didnt have the A/C or heat on. Left the store, 2 miles later, my waterpump went out. Like Dack said, I believe the sound you are hearing is a early warning sign of the waterpump going out so keep an eye out. If it ever get to the day that you turn on your car and the fan turns on full blast within 10 seconds, your waterpump is no longer working (or a fuse blew). So keep and eye out.
__________________
2009 BSM 135i 6MT
Appreciate 0