3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
looks like water out of the radiator to me, as the car gets older the water changes colour because of the metal corroding inside the pipes and radiator. Could be one of the rubber pipe clips leaking or a pipe split, worse still a radiator leak ££££. look around under the bonnet to see a water stained pipe or any sign of a leak.
Just a thought, but if the car was left running in that spot 4 a while, it could just be water from the inside of the exhaust dripping out of 1 of the exhaust joints. I dont think its a coolant leak because theres no way the inside of the cooling system or the engine could be that corroded on a car thats only 4 years old... And being tha colour it certainly aint any of the oils...
I bet it is not any of the automotive fluids.
It is flow out of stagnant water, that has been in steel cavity.
It could be condensate from air conditioner or exaust system. If it is from exaust, and not at the tail pipe, then exust is about to be corroded through and held together by the rust; can happaned on 4 year old car in locations with four seasons climat.
Another opportunity is from the drainage around sunroof.
I would be concearn with the fact that there is a rust in the water: that means there is bare metal expoused to moisture: bad...
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