My 1999 BMW 740IL is leaking coolant, it looks like it is coming out around the seal. I will attach pictures. What unit is this? Is it something I can replace on my own? What causes this?
This part is directly under the engine underguard protector (picture taken under the car)
BMW Technician
bmw factory trained since 2000 current shop foreman
It really seem like fluid was coming out of the seal on the oil pan. I will do as you suggested. Is there a gasket that should be replace on the oil pan? Is that a job that I could do with mechanical ability without having to take it to shop?
While it may appear to be leaking there, there is only oil behind that gasket.WHat i believe is happening is that the coolant is puddling there from running down from somewhere else-that is just the lower oil pan gasket,there is another gasket that seals the entire oil pan which is a much more difficult job, while the lower oil pan gasket is easy.But if there is no oil leaking from there i wouldn,t change it-i cant get the instructions to load right now i will try later-
Your right...I jacked it up and without turning on the engine I pour water into the tank an it is streaming down to the oil pan. I can't tell were it is coming from but my assumption from domestic cars is that when water streams out that fast it is typically the water pump. If it was a hose I don't think I would get that kind of imediate water flow.
Thoughts.
I am assuming that you are talking about the valley pan gasket whick is located under the intake.Common leak point on these vehicles-