S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

is distilled water necessary for replacing the coolant?

Thread Tools
 
Search this Thread
 
Old 10-06-2007, 10:26 PM
  #1  
AudiWorld Super User
Thread Starter
 
PKBlu::E30 Hunt's Avatar
 
Join Date: Jul 2002
Posts: 7,279
Likes: 0
Received 0 Likes on 0 Posts
Default is distilled water necessary for replacing the coolant?

or is tap water ok for mixing with G12?
Old 10-06-2007, 10:30 PM
  #2  
AudiWorld Super User
 
rktskicar's Avatar
 
Join Date: Oct 2002
Location: Seattle area
Posts: 10,857
Likes: 0
Received 0 Likes on 0 Posts
Default

Distilled water is required, unless just topping it off. In which case can use straight G12.
Old 10-06-2007, 10:37 PM
  #3  
AudiWorld Super User
 
inliner311's Avatar
 
Join Date: Jul 2002
Posts: 3,417
Likes: 0
Received 0 Likes on 0 Posts
Default never use tap water when mixing coolant....

there are salts and minerals in tap water that can rust and corrod your cooling system. Alway get distilled water, its only 1 a gallon.
Old 10-07-2007, 12:29 AM
  #4  
AudiWorld Super User
 
Tifosi's Avatar
 
Join Date: Sep 2000
Posts: 2,480
Likes: 0
Received 1 Like on 1 Post
Default IMO, it depends on where you live. The container clearly states that it requires soft water...

OR distalled water. While distalled water is better and should be used if you can, but if you live in an area that has soft water as your tap water and for whatever reason, do not have distalled water handy, then you are okay too.

Plus, I highly doubt that dealerships or independent shops are all using bottled distilled water when it comes to replacing coolants.
Old 10-07-2007, 07:35 AM
  #5  
Member
 
Silver Streakin''s Avatar
 
Join Date: Oct 2000
Location: PA
Posts: 41,966
Likes: 0
Received 1 Like on 1 Post
Default

it's less than $1 per gallon -- why wouldn't you use it?
Old 10-07-2007, 07:46 AM
  #6  
Junior Member
 
newguy662's Avatar
 
Join Date: May 2004
Posts: 627
Likes: 0
Received 0 Likes on 0 Posts
Default I used spring water and mixed it 50/50 about 4 months ago...did a little more

than just top it off....

so far no problems...
Old 10-07-2007, 09:20 AM
  #7  
Junior Member
 
Jeff 'S iv's Avatar
 
Join Date: Jul 2007
Posts: 1,393
Likes: 0
Received 0 Likes on 0 Posts
Default not sure if it's true, but radiator shop once told me if you simply leave

water out it becomes distilled.
Old 10-07-2007, 10:08 AM
  #8  
AudiWorld Super User
 
HdiaS4's Avatar
 
Join Date: Feb 2004
Posts: 2,976
Likes: 0
Received 0 Likes on 0 Posts
Default not true

distilled water is water without any minerals, just plain H2O. By leaving drinking water open is not going to get rid of its minerals.
To make distilled water you need to boil the water into steam then from the steam you make water again in a clean container.
Old 10-08-2007, 11:22 AM
  #9  
AudiWorld Super User
 
Tifosi's Avatar
 
Join Date: Sep 2000
Posts: 2,480
Likes: 0
Received 1 Like on 1 Post
Default You may have problems with spring water, as they are mostly mineral water/hard water...

which is exactly what you are not suppose to use.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
amiram
Audi allroad
4
04-02-2015 11:47 PM
vtraudt
1.8T Discussion
6
06-25-2014 05:42 AM
brrman
A4 (B5 Platform) Discussion
12
04-11-2003 11:15 AM
audi231
A4 (B5 Platform) Discussion
4
10-01-2001 03:07 PM



Quick Reply: is distilled water necessary for replacing the coolant?



All times are GMT -8. The time now is 10:21 PM.