Drivetrain (Cooper S) MINI Cooper S (R56) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain Coolant Reservoir Relocation

Thread Tools
 
Search this Thread
 
Old Nov 21, 2025 | 08:13 AM
  #1  
Coz3z3's Avatar
Coz3z3
Thread Starter
|
3rd Gear
5 Year Member
iTrader: (1)
Joined: Jan 2019
Posts: 232
Likes: 29
From: Nevada
Coolant Reservoir Relocation

2011 JCW N14

Anyone do a relocation of the coolant reservoir and use custom hoses? More looking for going with a braided line setup for flexibility rather than buying a kit with supplied silicone hoses. More curious on how you made it work with adapting to the aux water pump, and all the thermostat connections. Thanks in advance
 
Reply
Old Dec 2, 2025 | 10:10 PM
  #2  
squawSkiBum's Avatar
squawSkiBum
Moderator
10 Year Member
Liked
Loved
Community Favorite
Joined: May 2012
Posts: 1,782
Likes: 341
From: San Francisco Bay Area
Where under the hood is there room to relocate the coolant reservoir?
 
Reply
Old Dec 3, 2025 | 05:25 AM
  #3  
Coz3z3's Avatar
Coz3z3
Thread Starter
|
3rd Gear
5 Year Member
iTrader: (1)
Joined: Jan 2019
Posts: 232
Likes: 29
From: Nevada
Most kits put it on the firewall cover and relocate the air intake
 
Reply
Old Dec 3, 2025 | 05:41 AM
  #4  
njaremka's Avatar
njaremka
Alliance Member
5 Year Member
Community Builder
Community Influencer
Joined: Jul 2016
Posts: 7,523
Likes: 2,495
From: WNY
There is only the one connection on the bottom, and the small tube that overflows to the radiator. Extend those lines, make sure the tank is mounted at roughly the same height, and put it wherever you can find room.
 
Reply
Old Dec 3, 2025 | 06:39 AM
  #5  
Coz3z3's Avatar
Coz3z3
Thread Starter
|
3rd Gear
5 Year Member
iTrader: (1)
Joined: Jan 2019
Posts: 232
Likes: 29
From: Nevada
Yeah, the tank isn't what I am concerned about. My question is going with a more custom setup using AN lines. Adapting them to the thermostat and auxiliary water pump mainly. I can find adapters for the turbo, but am wondering when I see custom setups, are they doing a barb to AN adapter and then leaving a short section of hose on the barbed ends to the thermostat or is there custom fittings I am no seeing? That was my original inquiry on the whole setup. Thanks for the insight though
 
Reply
Old Dec 3, 2025 | 07:14 AM
  #6  
njaremka's Avatar
njaremka
Alliance Member
5 Year Member
Community Builder
Community Influencer
Joined: Jul 2016
Posts: 7,523
Likes: 2,495
From: WNY
Can't say that I've seen too many AN fitting conversions on anything Mini related. Reasoning? The advantage to the OEM Mini connectors is ease of disassembly and reassembly. With the tight engine bay, I can't imagine using AN fittings and having to wrench all those tight connections.
 
Reply
Old Dec 3, 2025 | 07:53 AM
  #7  
Coz3z3's Avatar
Coz3z3
Thread Starter
|
3rd Gear
5 Year Member
iTrader: (1)
Joined: Jan 2019
Posts: 232
Likes: 29
From: Nevada
Originally Posted by njaremka
Can't say that I've seen too many AN fitting conversions on anything Mini related. Reasoning? The advantage to the OEM Mini connectors is ease of disassembly and reassembly. With the tight engine bay, I can't imagine using AN fittings and having to wrench all those tight connections.
Yeah, I haven't seen much either, but wanted to ask and make sure I am not missing anything. My main reasoning is to clean it up and make it a little more flexible and easier to route things. I've had to change my DV a few times, (thats another story) and the turbo line is rigid and is in the way along with the reservoir and such. Also when doing an oil filter, again, the reservoir and lines, and then I have one of the main hoses that is in the way making it a pain and what not. Just thinking if I can get a thinner, 180 fitting or anything like that to help accommodate and make things look cleaner, then I would. And RPM stopped making the oil filter relocation kit so that sucks lol
 
Reply
Old Dec 3, 2025 | 01:38 PM
  #8  
Gubi's Avatar
Gubi
4th Gear
10 Year Member
Liked
Loved
Joined: Jun 2012
Posts: 377
Likes: 87
I suspect it's easier to just move the reservoir out of the way when you need to. Just remove the one screw, unclip it from the front crossmember, and you can just flex it out of the way without removing the hoses. I've had no issues changing the oil filter or diverter valve doing that.

I mean, it's a *little* tight, but nothing that seems like it would justify rejiggering the cooling system. Your call though.
 
Reply
Old Dec 3, 2025 | 02:54 PM
  #9  
Coz3z3's Avatar
Coz3z3
Thread Starter
|
3rd Gear
5 Year Member
iTrader: (1)
Joined: Jan 2019
Posts: 232
Likes: 29
From: Nevada
Originally Posted by Gubi
I suspect it's easier to just move the reservoir out of the way when you need to. Just remove the one screw, unclip it from the front crossmember, and you can just flex it out of the way without removing the hoses. I've had no issues changing the oil filter or diverter valve doing that.

I mean, it's a *little* tight, but nothing that seems like it would justify rejiggering the cooling system. Your call though.
Yeah, I dont really have a problem with moving it and I know how to do it. I have bigger plans for all of this so was just curious on a solution for my question. Thanks
 
Reply
Old Dec 4, 2025 | 10:58 AM
  #10  
ECSTuning's Avatar
ECSTuning
Platinum Sponsor
10 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2013
Posts: 36,749
Likes: 2,545
From: Wadsworth, Ohio
We have something planned down the road. Not a relocation, but something to give you more room.
 
__________________

MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172

Last edited by ECSTuning; Dec 5, 2025 at 06:07 AM.
Reply
Old Dec 4, 2025 | 04:58 PM
  #11  
squawSkiBum's Avatar
squawSkiBum
Moderator
10 Year Member
Liked
Loved
Community Favorite
Joined: May 2012
Posts: 1,782
Likes: 341
From: San Francisco Bay Area
Originally Posted by Coz3z3
Most kits put it on the firewall cover and relocate the air intake
I hadn't considered that, here in CA the smog rules severely restrict what you can do under the hood. I had the ECS carbon intake box on my previous R56 and even though it is just carbon fiber bling for the engine compartment (so gorgeous I couldn't pass it up) I had to take it off every 2 years when I had to have the car smog tested. Any mods in the engine compartment have to be subtle enough that the smog tech won't notice or have the CARB approval sticker, which is rare. So I have to look at mods through the lens of what will get past the smog test tech.



 
Reply
Old Dec 5, 2025 | 07:34 AM
  #12  
Coz3z3's Avatar
Coz3z3
Thread Starter
|
3rd Gear
5 Year Member
iTrader: (1)
Joined: Jan 2019
Posts: 232
Likes: 29
From: Nevada
Originally Posted by squawSkiBum
I hadn't considered that, here in CA the smog rules severely restrict what you can do under the hood. I had the ECS carbon intake box on my previous R56 and even though it is just carbon fiber bling for the engine compartment (so gorgeous I couldn't pass it up) I had to take it off every 2 years when I had to have the car smog tested. Any mods in the engine compartment have to be subtle enough that the smog tech won't notice or have the CARB approval sticker, which is rare. So I have to look at mods through the lens of what will get past the smog test tech.
Yeah, thats awful. Last year I got questioned for having "excessive smoke" coming out of the exhaust when it was 20 degrees outside and first thing in the morning. Everyones car had excessive smoke lol. He didnt bat an eye that my cat was gone though. So weird
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Colin Schlagel
Stock Problems/Issues
12
Apr 29, 2021 07:59 AM
R56_Zoo
Stock Problems/Issues
5
Aug 26, 2020 07:54 PM
rrootdawg
R60/R61 Stock Problems/Issues
0
Mar 9, 2020 05:41 PM
dildo_swaggins
Stock Problems/Issues
14
Apr 7, 2019 05:32 PM
lasher10
R56 :: Hatch Talk (2007+)
3
Apr 10, 2017 05:05 AM




All times are GMT -7. The time now is 12:06 PM.