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 2009 Clubman Coolant leak, help?

 Created by: TLFlynn13
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 Posted: Sep 4, 2018 10:04AM
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Ken is right-- the pic is not visible to us. I've noticed this problem with the forum accepting links or even uploading pics from my computer. Very finicky.

Anyway, As someone who considers himself pretty ok with a wrench (I can do most things on a classic mini), the thought of diving in to my wife's 08 Clubman was a little daunting. (we've since sold it).

But I replaced the thermostat housing as well as the crossover pipe that is behind the engine and under the intake manifold. It was frustrating but really not very difficult. I bought he parts from the local dealer because I had a connection that would give it to me for the lowest price I could find for aftermarket items and I figured it lasted 100K miles so should last another 100K.

There are some great video resources on youtube to walk you through the process (if you have the same problem as I had-- leaking thermostat housing [it looks like an artificial heart!] and I did the crossover pipe because it was one of those "foolish not to replace while thermostat housing is out" sorta things).

I will confess that the crossover pipe is what was the most difficult part for me because it did not pull out as neatly as it seems to do for people in their videos. I ended up loosening up the entire intake manifold to gain access to where the pipe plugs into the back of the water pump. Once I resolved myself to doing this, it only took a few moments whereas it took me a day of struggling to try to pull the pipe out the way some of the videos show.

Good luck and don't be afraid to try it yourself.

 Posted: Sep 4, 2018 09:06AM
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Quote:
Originally Posted by TLFlynn13
I've got a small coolant leak on my new clubman, was hoping for a little advice on it. I believe I've pinpointed the location. 
I've got some mechanical knowledge, but not sure if I should just take this one to a shop. Seems to be losing a fair amount of coolant. Posted is a pic of the location, when running hot it seems to bubble up from this pipe. I assume that indicates a seal or grommet that may need to be replaced, or could it be a problem with the pipe itself? 
Couldn't see the pic....

 Posted: Sep 3, 2018 07:14AM
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I've got 2 R56's, 2008 & 2009.  You can cure the leaks yourself, and I recommend that you get on it right away.  I have looked at several Clubman's with blown head gaskets that started from leaks that got out of hand which lead to overheating and blown head gaskets...
Here's what I have learned owning these:
1. Plastic water pump - I replaced the pumps on both of my cars to Aluminum Water Pumps.  It was a good thing, I found a very minor leak as one was cracked where the pump pulley shaft runs through.
2. poor seal with hoses to thermostat housing.  The previous owner of my 09 had some issues with hose connections to the housing.  They used regular hose clamps to secure bad hoses to the housing.  all that did was roll the hose and did not make a good seal.  Fix, new thermostat/housing and several new hoses and not over tightened hose clamps.
3. poor seal with thermostat housing once the car has gotten hot.
4. bad seal on cap for overflow tank. - I have not had this issue yet, but a friend of mine had a constant boil over issue.  It triggered me to buy a coolant system pressurizing test kit.  we found that his cap was not sealing. 
5. small cracks on bottom of overflow tank.  - This happened on both my '08 and '09.  I found cracks underneath the overflow reservoir.  Both cars were seeping coolant from the cracks.  it was much worse on the '09.  Dorman makes an exact fit replacement.  
It is important to close all the leaks.  It will suck air in the leaks and cause the coolant to boil and your car to overheat.  big leaks will cause you to loose coolant and your car to overheat when you least want it to happen.  What I have noticed since I have gone through both cars, when I check the coolant while the car is cold, removing the cap will demonstrate a vacuum in the system, so I know it is sealed tight.  This is what you want.  
The parts can be gotten pretty inexpensively, but you have to shop for them.  Its the work that takes a lot of time.  That is why it is so expensive to own these cars, shop rate here in CA at $180/hour and most of these repairs are all-day plus jobs.  Great opportunity to get up close and personal with your cooper on the weekends.  
I hope this helps, its easy work, but just takes time to clear away all the stuff in the way to get to the parts. 
- DONT FORGET ABOUT YOUR TIMING CHAIN>>> every 75,000 miles. 

 Posted: Sep 3, 2018 06:53AM
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duh ?? what NOT just take the    BMW MINI  to local radiator shop  and let them flush out the rad and sort the leak.. later bc

 Posted: Sep 3, 2018 05:36AM
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I've got a small coolant leak on my new clubman, was hoping for a little advice on it. I believe I've pinpointed the location. 
I've got some mechanical knowledge, but not sure if I should just take this one to a shop. Seems to be losing a fair amount of coolant. Posted is a pic of the location, when running hot it seems to bubble up from this pipe. I assume that indicates a seal or grommet that may need to be replaced, or could it be a problem with the pipe itself?