Mini Cooper Parts Catalog Mini Cooper Accessories Catalog Mini Cooper Technical Articles Mini Cooper Tech Forums
 
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
Bookmark and Share

Pelican Technical Article:

Radiator Replacement

Nick Czerula

Time:

2 hours2 hrs

Tab:

$350

Talent:

***

Tools:

T20 Torx driver, flathead screwdriver

Applicable Models:

R56 MINI Cooper Hatchback (2007-11)
R56 MINI Cooper S Hatchback (2007-11)

Parts Required:

Radiator, coolant and radiator / reservoir vent hose

Hot Tip:

Work with a cool engine

Performance Gain:

Proper engine cooling

Complementary Modification:

Inspect or replace coolant hoses

Automobile radiators are made out of a core of linked narrow passages connected via two side tanks. The core is metal and made of stacked layers, pressed and soldered together to form channels. Traditionally, radiators were made of brass or copper cores and attached to brass side tanks. Radiators in today's MINI R56 vehicles are made of aluminum cores attached to aluminum side tanks. This keeps cost down and saves weight.

In automobiles with a liquid-cooled engine, a radiator is connected to passages in the engine where liquid coolant is pumped through via a water pump. This liquid is a mixture of water and glycol (to prevent freezing).

The radiator cools the engine by transferring the heat from the fluid inside the engine to the outside air. Radiators are also used to cool transmission and power steering fluids.

When a radiator begins to fail, you'll notice that the car tends to overheat at high engine speed, such as driving on the highway. When you accelerate, the engine temperature will rise, when you idle the engine it will return to normal range. Now, this is not always indicative of a failing radiator, but a good starting point. Of course there are also leaks that occur at the fin or fin joining areas to the side tanks. Best bet is to pressure test the cooling system to find the source of the leak.

You will have to place the radiator support in the service position to replace the radiator. Inspect both radiator hoses and replace them if necessary. Check for dry rot, swelling or splitting.

In this article, I'll go over the steps involved with replacing the radiator on MINI r56 models. Be sure to work with a cool engine and confirm the cooling system lacks pressure before opening the cooling system.

Remember that your car may have been serviced before and had parts replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability.

Our vehicle may vary slightly from yours as models do change and evolve, as they grow older. If something seems different, let us know and share your info to help other users. Do you have questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

Automobile radiators are made out of a core of linked narrow passages connected via two side tanks.
Figure 1

Automobile radiators are made out of a core of linked narrow passages connected via two side tanks. The core is metal and made of stacked layers, pressed and soldered together to form channels. Traditionally, radiators were made of brass or copper cores and attached to brass side tanks. Radiators in today's MINI R56 vehicles are made of aluminum cores attached to aluminum side tanks. This keeps cost down and saves weight. The radiator is located behind the radiator grille (red arrow).

Drain the cooling system.
Figure 2

Drain the cooling system. See our tech article on cooling system draining and filling. Place the radiator support in the service position. To replace the radiator See our tech article on radiator support service position. Then, remove the T25 Torx (yellow arrow) just below the left side headlight (red arrow).

Next you have to remove the front bumper support.
Figure 3

Next you have to remove the front bumper support. Start by removing the two 13mm fasteners at the bumper support to subframe mount (red arrows). The photo shows the right side of the support.

Working at the left side, remove the T25 Torx screw (red arrow).
Figure 4

Working at the left side, remove the T25 Torx screw (red arrow). Then, remove the two 13mm fasteners at the bumper support to subframe mount (yellow arrows). Note the position of the ratchet, working from behind. Hold the bumper support in place when removing the final fastener.

Hold the bumper support in place when removing the final fastener.
Figure 5

Hold the bumper support in place when removing the final fastener. Then remove the bumper support from the vehicle (red arrow).

Then, remove the 10mm fastener for the A/C lines (red arrow).
Figure 6

Then, remove the 10mm fastener for the A/C lines (red arrow).

Working at the top corners of the radiator, remove the two T20 Torx fasteners (red arrows).
Figure 7

Working at the top corners of the radiator, remove the two T20 Torx fasteners (red arrows).

Tilt the A/C condenser out at the top and remove the two mounting brackets (red arrow).
Figure 8

Tilt the A/C condenser out at the top and remove the two mounting brackets (red arrow). The left side is shown. The right side is similar.

Lift the A/C condenser in the direction of the red arrow and unhook it from the lower mount.
Figure 9

Lift the A/C condenser in the direction of the red arrow and unhook it from the lower mount. Secure it below the radiator. Do not allow too much tension to be placed on the A/C lines. Just let it hang low enough to get to the radiator. 

Working at the left side of the radiator, tilt the top of the radiator out of the vehicle.
Figure 10

Working at the left side of the radiator, tilt the top of the radiator out of the vehicle. Using hose clamp pliers, slide the radiator and vent hose clamps (red arrows) away from the radiator. Once the clamps are moved away from the radiator, remove the hoses from the radiator.

Working at the right side of the radiator, tilt the top of the radiator out of the vehicle and lift the radiator up slightly to detach it from the mount (yellow arrow).
Figure 11

Working at the right side of the radiator, tilt the top of the radiator out of the vehicle and lift the radiator up slightly to detach it from the mount (yellow arrow). Using hose clamp pliers, slide the radiator hose clamp (red arrow) away from the radiator. Once the clamp is moved away from the radiator, remove the hose from the radiator.

To remove the radiator, pull it out of the radiator support upward and out of the radiator support (red arrow).
Figure 12

To remove the radiator, pull it out of the radiator support upward and out of the radiator support (red arrow). Reverse these steps to install the new radiator. Be sure that the radiator and A/C condenser are properly aligned with the mounts and tabs. Once it is installed properly, reassemble the front end. Then install the cooling fan and fill and bleed the cooling system. Run the engine and double check for coolant leaks. 



Bookmark and Share
Comments and Suggestions:
Greg Comments: 2009 Mini Cooper S Turbo Automatic

Do I have to remove the cooling fan to remove/replace the radiator
November 16, 2016
  Followup from the Pelican Staff: No. - Nick at Pelican Parts  

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Project/Wish List]
  [Privacy Statement]  [Contact Us] [About Us] [Shipping] [Careers]

Copyright © Pelican Parts Inc. -    DMCA Registered Agent Contact Page

Page last updated: Fri 12/9/2016 02:53:24 AM