So I rambled on a bit so TLDR: left car stored, has a big puddle of coolant, where should I start. also is there a fuse that would cause codes for all 4 o2 sensors.
Hello, So I bought my 2002 M3 last summer in California. I drove it back to Utah stopping in Vegas to have the vanos rebuilt because it wasn't sounding right to me and I didn't want to take any risks. After that the car ran great until I put it in my underground parking to be stored over the winter. I went down and checked on it every once in a while starting it for a bit to make sure everything was fine. When I went down to start it most recently I noticed a big puddle under the front of the car under the passenger side. Upon further inspection I found that all the coolant had leaked out. My first thought was with it being a California car the previous owner used water instead of coolant and it froze. I did however have the shop do a full coolant flush and I confirmed they did it by contacting the shop that did the work, and I believe them as they are a pretty reputable shop. I filled the tank with water just to see if it would leak out and after running it for a bit then leaving it for a few days not much had leaked out. Today I drove the car around the garage for a bit and noticed it was leaking quite a bit while driving. My guess would be either hosing or a water pump but I'm not really sure where I should start. I also have a ses light and while trying to scan it I keep getting errors then eventually I got a few codes that I believe are all 4 o2 sensors. Is there a fuse that might be blown that would cause this? I also can't reset the light, is that normal? It might just be my obdii tester i've had for ages but figured I should throw that in while I'm at it.
Hello, So I bought my 2002 M3 last summer in California. I drove it back to Utah stopping in Vegas to have the vanos rebuilt because it wasn't sounding right to me and I didn't want to take any risks. After that the car ran great until I put it in my underground parking to be stored over the winter. I went down and checked on it every once in a while starting it for a bit to make sure everything was fine. When I went down to start it most recently I noticed a big puddle under the front of the car under the passenger side. Upon further inspection I found that all the coolant had leaked out. My first thought was with it being a California car the previous owner used water instead of coolant and it froze. I did however have the shop do a full coolant flush and I confirmed they did it by contacting the shop that did the work, and I believe them as they are a pretty reputable shop. I filled the tank with water just to see if it would leak out and after running it for a bit then leaving it for a few days not much had leaked out. Today I drove the car around the garage for a bit and noticed it was leaking quite a bit while driving. My guess would be either hosing or a water pump but I'm not really sure where I should start. I also have a ses light and while trying to scan it I keep getting errors then eventually I got a few codes that I believe are all 4 o2 sensors. Is there a fuse that might be blown that would cause this? I also can't reset the light, is that normal? It might just be my obdii tester i've had for ages but figured I should throw that in while I'm at it.