R60/R61 Stock Problems/Issues Discussions related to warranty related issues and repairs, or other problems with the OEM parts and software for R60 AND R61 MINI Cooper and Cooper S MINIs.

coolant leak, possibly water pump?

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Old Feb 16, 2020 | 06:43 PM
  #1  
doctahjones's Avatar
doctahjones
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From: Parker, Co
coolant leak, possibly water pump?

My turn for a coolant leak!

Leaking on the passenger side, somewhere about even with the passenger wheel.

I took off the air cleaner and intakes to get a look at the thermostat housing side, that side looks bone dry.

Took out the intake manifold hose on the passenger side to try to get a look at the water pump. While the coolant is definitely leaking from that side, I can't tell 100% if it's from the water pump itself or what. I haven't gotten -under- the car to take a look yet, I'm hoping to do that tomorrow to see if I can get a better look.

With that information so far, any guesses as to what it could be? My understanding from watching some videos and looking on here is that there's the plastic water pipe between the water pump and the thermostat housing? I'm hoping to get a look at the water pump side connection to see if that's it (hopefully!). I also see threads about the thermo sensor, but I can't imagine that would cause the amount of leaking I've had in the past 24-ish hours.

I've been looking through quite a few threads to try to find a writeup with pics of how best to see that side (I'm going to pick up a mirror-on-a-stick to help me see too), so if anyone knows of one off the top of their head I'd appreciate a link Meanwhile I'll keep looking for one.


I usually back-in park, so the leak trail from the drivers side rear tire in this pic is from that. Then I flipped it around trying to get my homelink programmed (it wouldn't by the way, so odd), and left it that way until the next day, when it had the leak trail on the passenger side. There's a seam in the concrete that the leak 'jogs' over on. I don't have a big incline for the driveway, only about 5% grade at most?




passenger side front, looking to the back (and an oil leak, yay!)




center-ish front, looking towards the back




from behind passenger wheel/under passenger door looking forwards

from the top of the engine, looking down, the pip on the right is the intake manifold. bottom left-ish is the water pump




shoved my hand and phone down the firewall, pointed camera towards the front of the car




shoved my hand and phone down the firewall, pointed camera towards the front of the car




this would be standing on passenger side, looking at the engine, straight down (you can see the manifold intake pipe about in the center of the image)





another shot from standing on passenger side, looking at the engine, straight down (you can see the manifold intake pipe about in the center of the image)






thermostat housing side. no puddles at all
 
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Old Feb 21, 2020 | 09:07 PM
  #2  
doctahjones's Avatar
doctahjones
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From: Parker, Co
Whoops, didn't realize I had two threads going. Doh.

It was the water pump, they did the water pipe as well.
 
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Old Feb 26, 2020 | 12:41 PM
  #3  
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ECSTuning
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No problem, was going to say that was it and do the pipe also. My old one was plastic and got a crack in it, the new water pump housings are not metal and you can get metal impeller. Pipe is still plastic.
 
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