1997 BMW 740

FSTANCU

MEMBER
1997 BMW 740
V8
2WD
AUTOMATIC
90,000 MILES

I just bought a '97 bmw 740il with 90000 miles and I went to a local garage and had oil changed ( 5w-30 bmw synthetic oil) also air filter, everything was allright the car was running smooth but suddently the heating stop working, so I went again to the shop put the computer on it and read three faults: aux water pump, coolant temp. Sensor and oil level/temp sensor. Afrer that I went home and coolant level light came on and service engine soon also. I go back to the shop and had aux water pump, expantion coolant tank and water pump replaced but the mechanic told me that oil from engine is leaking and he don't know where is comming from -yet, I wonder what that could be, thanks for any helpful info.

1 Reply

DOCHAGERTY

MECHANIC
9,601 POSTS

You have touched on a problem that is very difficult to repair from cyberspace. If the mechanic you are working with cannot find an oil leak than perhaps you should seek out a technician that has the ability to do so. Oil can leak from many places, and sitting in cyberspace is compromising. Check the valve cover gaskets and the oil filter lines, also the o-rings that seal the oil filter lines to the block. If you need more help we will be here for you. Dr. Hagerty