Stock Problems/Issues Discussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Cooper (R50), Cabrio (R52), and Cooper S (R53) MINIs.

Coolant leak

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Old Dec 25, 2017 | 03:14 PM
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tonymtorres47@hotmail.com's Avatar
tonymtorres47@hotmail.com
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Coolant leak

So I've been losing allot of coolant and I took the front end off and saw that it was coming behind the super charger so idk if it's screwed or fixable any suggestion
 
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Old Dec 25, 2017 | 03:31 PM
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Whine not Walnuts
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Moving you to the Stock Problems/Issues area.

A coolant leak behind/under the SC on the drive side is normally the waterpump and/or the Tstat housing. Lots of pipes in that area. The waterpump also has a special female fitting that attaches to the motor block. The fitting has both an o-ring and a gasket.
 
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Old Dec 25, 2017 | 03:38 PM
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tonymtorres47@hotmail.com's Avatar
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Originally Posted by r53coop
Moving you to the Stock Problems/Issues area.

A coolant leak behind/under the SC on the drive side is normally the waterpump and/or the Tstat housing. Lots of pipes in that area. The waterpump also has a special female fitting that attaches to the motor block. The fitting has both an o-ring and a gasket.
yeah I just read that I feel like an idiot now but I ordered for the flange and water pump but I'm just not excited to take apart
 
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Old Dec 25, 2017 | 03:49 PM
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Whine not Walnuts
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You can change the pump without removing the supercharger but it is easier if you remove the driver side SC horn that will then allow you to get the BPV out of the way. Be sure to remove the motor block flange bolts before you try to take the waterpump out.
 
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Old Dec 25, 2017 | 04:21 PM
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tonymtorres47@hotmail.com's Avatar
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Originally Posted by r53coop
You can change the pump without removing the supercharger but it is easier if you remove the driver side SC horn that will then allow you to get the BPV out of the way. Be sure to remove the motor block flange bolts before you try to take the waterpump out.
oh ok I got it but I broke one of the tooth on the supercharger do you know if can just leave it like that or a way to fix that
 
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Old Dec 25, 2017 | 04:23 PM
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Need somebody with more experience. Both Way Motors and Detroit Tuned are vendors with full service shops, would think they would know.
 
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Old Dec 27, 2017 | 11:54 AM
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Oh no that stinks.

As you can see in the diy how the pump mounts and what it looks like you should weld it back on but it looks like cast. So thats going to be hard to do. Even if you still have the piece. You still have one tab to hold all of it and about 1/3rd tab to hold the other side of the protruding part. Test: I would take the old water pump apart and half and tun the impeller by hand with the serpentine belt off and see if the SC impeller turn easy without skipping or slack. To make sure the insert on the pump side teeth will engage on the SC tooth and a half that left.




Water pup DIY here:

https://www.northamericanmotoring.co...-mcs-only.html
 
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