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 change, but where is the 2nd vent screw?

Thread Tools
 
Search this Thread
 
  #1  
Old 04-25-2010, 01:03 PM
tonester's Avatar
tonester
tonester is offline
3rd Gear
Thread Starter
Join Date: May 2004
Location: Temple City
Posts: 229
Likes: 0
Received 0 Likes on 0 Posts
Coolant change, but where is the 2nd vent screw?

I know about the plastic vent screw on the top radiator hose, but I read in another DIY that there is a second vent screw behind the intercooler that also must be loosen to release the air. Does someone have a photo of this mysterious vent screw? I can't seem to find it.

thanks
 
  #2  
Old 04-25-2010, 08:03 PM
plasticknives's Avatar
plasticknives
plasticknives is offline
3rd Gear
iTrader: (1)
Join Date: Jan 2010
Location: MA
Posts: 285
Likes: 0
Received 1 Like on 1 Post
  #3  
Old 04-25-2010, 08:03 PM
asado's Avatar
asado
asado is offline
1st Gear
iTrader: (1)
Join Date: Apr 2010
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by tonester
I know about the plastic vent screw on the top radiator hose, but I read in another DIY that there is a second vent screw behind the intercooler that also must be loosen to release the air. Does someone have a photo of this mysterious vent screw? I can't seem to find it.

thanks
Its in front of the thermostat.

 
  #4  
Old 04-25-2010, 11:58 PM
tonester's Avatar
tonester
tonester is offline
3rd Gear
Thread Starter
Join Date: May 2004
Location: Temple City
Posts: 229
Likes: 0
Received 0 Likes on 0 Posts
wow. thank you so much for the pics. Do you guys normally bleed this vent screw as well as the one on the top radiator hose?
 
  #5  
Old 04-26-2010, 05:21 AM
plasticknives's Avatar
plasticknives
plasticknives is offline
3rd Gear
iTrader: (1)
Join Date: Jan 2010
Location: MA
Posts: 285
Likes: 0
Received 1 Like on 1 Post
I just recently did a flush and didn't bleed this screw. I get a waterfall behind my dash upon startup sometimes, but it goes away shortly. Haven't noticed any overheating so I'll get around to it eventually.
 
  #6  
Old 04-26-2010, 08:23 AM
asado's Avatar
asado
asado is offline
1st Gear
iTrader: (1)
Join Date: Apr 2010
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by tonester
wow. thank you so much for the pics. Do you guys normally bleed this vent screw as well as the one on the top radiator hose?
My buddy opened both when he flushed/refilled my coolant.
 
  #7  
Old 04-26-2010, 10:19 AM
tonester's Avatar
tonester
tonester is offline
3rd Gear
Thread Starter
Join Date: May 2004
Location: Temple City
Posts: 229
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by plasticknives
I get a waterfall behind my dash upon startup sometimes, but it goes away shortly.
Can you elaborate on this "wafterfall" thing that you mentioned?
 
  #8  
Old 04-26-2010, 10:19 AM
plasticknives's Avatar
plasticknives
plasticknives is offline
3rd Gear
iTrader: (1)
Join Date: Jan 2010
Location: MA
Posts: 285
Likes: 0
Received 1 Like on 1 Post
It's sounds just like a rush of water.
 
  #9  
Old 04-26-2010, 04:04 PM
Crashton's Avatar
Crashton
Crashton is offline
6th Gear
iTrader: (3)
Join Date: Jun 2003
Location: Over there on MA
Posts: 9,480
Likes: 0
Received 3 Likes on 3 Posts
Waterfall

It is because there is air in the cooling system. You are hearing the air move out of the heater core & the water move back in. You might want to use both of the bleed screws & try to get all the air out.
 
  #10  
Old 04-27-2010, 11:34 AM
tonester's Avatar
tonester
tonester is offline
3rd Gear
Thread Starter
Join Date: May 2004
Location: Temple City
Posts: 229
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Crashton
It is because there is air in the cooling system. You are hearing the air move out of the heater core & the water move back in. You might want to use both of the bleed screws & try to get all the air out.
I see. I'll be sure to loosen both vent screws when I do my coolant next week.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Kimolaoha
R56 :: Hatch Talk (2007+)
70
07-05-2023 01:04 PM
gundesen
MINI Parts for Sale
1
11-19-2015 07:33 PM
durablack
R55 :: Clubman Talk (2008+)
3
10-05-2015 01:51 PM
sprp85
MINI Parts for Sale
4
08-22-2015 06:16 AM
FLYM1N1
MINI Parts for Sale
1
08-16-2015 01:17 PM



Quick Reply: Coolant change, but where is the 2nd vent screw?



All times are GMT -7. The time now is 03:47 AM.