'04 545i coolant loss
#11
Contributors
Join Date: Jan 2008
Location: New Jersey
Posts: 1,335
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 545i
Model Year: 2004
Engine: N62
![Default](https://5series.net/forums/images/icons/icon1.gif)
In my case the leak was always when the system is pressurized and the coolant was hot. I let my car sit for a few days and never noticed a leak. Most of the coolant loss probably happens while driving or evaporates when hot.
Good luck OP! Keep us updated.
Good luck OP! Keep us updated.
#13
New Members
Thread Starter
Join Date: Aug 2014
Location: Ohio
Posts: 35
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: E60 545i v8 6spd MT
![Default](https://5series.net/forums/images/icons/icon1.gif)
99.9% sure I found where it is dripping. I finally got a glimpse of coolant running off of the block and onto the steering rack below the water pump. Still have to get under it and check to be sure.
#14
New Members
Thread Starter
Join Date: Aug 2014
Location: Ohio
Posts: 35
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: E60 545i v8 6spd MT
#18
New Members
Thread Starter
Join Date: Aug 2014
Location: Ohio
Posts: 35
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: E60 545i v8 6spd MT
#19
New Members
Thread Starter
Join Date: Aug 2014
Location: Ohio
Posts: 35
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: E60 545i v8 6spd MT
![Default](https://5series.net/forums/images/icons/icon1.gif)
Update!
I did the transfer pipe and valley pan gasket. Seems to have solved my issue. Only took about 5 hours with a collapsable pipe kit and an extra set of hands.
Now I have a whistling noise at operating temps coming from my expansion tank. So that will be next I guess haha
I did the transfer pipe and valley pan gasket. Seems to have solved my issue. Only took about 5 hours with a collapsable pipe kit and an extra set of hands.
Now I have a whistling noise at operating temps coming from my expansion tank. So that will be next I guess haha
#20
Members
Senior Members
![Default](https://5series.net/forums/images/icons/icon1.gif)
Update!
I did the transfer pipe and valley pan gasket. Seems to have solved my issue. Only took about 5 hours with a collapsable pipe kit and an extra set of hands.
Now I have a whistling noise at operating temps coming from my expansion tank. So that will be next I guess haha
I did the transfer pipe and valley pan gasket. Seems to have solved my issue. Only took about 5 hours with a collapsable pipe kit and an extra set of hands.
Now I have a whistling noise at operating temps coming from my expansion tank. So that will be next I guess haha