Losing Radiotor Coolant every 1-2 weeks
#12
Super Moderator
#13
Contributors
Join Date: Dec 2007
Location: The State of Southern NJ!
Posts: 5,972
Likes: 0
Received 0 Likes
on
0 Posts
Probably, but not for very long - I've tried it but the silicone doesn't adhere well to the plastics used to make these tanks. So, at best you'll buy some time. Good thing the expansion tank isn't that expensive - I recommend you replace it.
#14
Members
Join Date: Nov 2009
Location: Melbourne, Australia
Posts: 71
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2006 525i Metallic Silver Grey
M Sport Aero Dynamic Kit | M Sport Suspension | Business Navigation | Sports Front Seats | M Sport Leather Steering Wheel | Sunroof | PDC | 18" M Sport Double Spoke Light Alloy | M Spoiler | LCI Tail Light | HID 6000K
2010 Mazda CX9 Aluminium Metallic
Yep. Same with me.
#15
Members
Thread Starter
Join Date: Oct 2009
Location: Australia
Posts: 196
Likes: 0
Received 1 Like
on
1 Post
My Ride: E60 M54
Model Year: 525i 2004
Forget long, I tried silicon and let it dry for 2 days, and started the car on the 3rd and it leaked just as normal. Not sure if I did not get the right or whole area, but definitely silicon did not help me. I have ordered OEM tank ...........
#16
Contributors
Join Date: Dec 2007
Location: The State of Southern NJ!
Posts: 5,972
Likes: 0
Received 0 Likes
on
0 Posts
Another must have - especially for road warriors - is a gallon of distilled water - Just remember to remove it when winter weather approaches!! And, since BMW had thoughtfully engineered placement of important electronics in the worst of places under the trunk floor ... my gallon is double-bagged in zip-close plastic bags.
#17
Having a slow leak as well. It looks like a small amount of coolant under what I would think is the water pump. The pump was replaced 20k miles ago at the dealer, so I am doubting that. Any ideas of what I should look at in that general area? 105k miles total.
I just replaced the whole system on my x5 (tank, pump, thermodynamic, hoses, belts), so I was hoping to not have to do all of that again, especially with a pump only 20k miles old.
Does the whole system on the e60 need replacing at 100k like the x5?
I just replaced the whole system on my x5 (tank, pump, thermodynamic, hoses, belts), so I was hoping to not have to do all of that again, especially with a pump only 20k miles old.
Does the whole system on the e60 need replacing at 100k like the x5?
#18
Contributors
Join Date: Mar 2010
Location: Los Angeles, CA
Posts: 3,098
Likes: 0
Received 4 Likes
on
4 Posts
My Ride: BMW
Model Year: 2006
I have a crack\leak on my expansion tank vent pipe around where it goes to the radiator. Any tips on replacing it? Do I have to drain the radiator? I would think since it's at the top, I would just remove the pipe and just catch whatever coolant that runs out and replace the coolant?
Thanks!
Thanks!
#19
Senior Members
Join Date: Nov 2008
Location: Houston, TX
Posts: 670
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2006 530i, Jet Black, Tan, Premium, Steptronic
You can most likely just replace the tank and catch the coolant at the hose.
However, if the coolant has never been changed then now is the time to do it. It is a pretty simple process, especially with an electric water pump.
However, if the coolant has never been changed then now is the time to do it. It is a pretty simple process, especially with an electric water pump.
#20
Members
Senior Members
If you have the electric water pump, follow the bleeding procedure - you can hear it working, so you'll know if you got it started.