View Single Post
      02-04-2013, 02:58 PM   #2
cn555ic
BimmerPost Supporting Vendor
cn555ic's Avatar
United_States
259
Rep
18,294
Posts


Drives: Bimmerscoding.com
Join Date: Jun 2007
Location: New York

iTrader: (5)

Send a message via Yahoo to cn555ic
its built up water thats been sitting on the exhaust..THis is caused by turning on the engine and not moving it, but letting it idle. The black color is the carbon thats being soaked by the water which turns the water collected from the condensation in a black sooty liquid.
__________________
917-939-4980 CODING E and F Series New York Area