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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW Passat Family (NMS and B7) TDIs (2012+)

VW Passat Family (NMS and B7) TDIs (2012+) Discussion area for the 2012+ Passat TDI (North American and rest of world versions versions). The North American model was previously codenamed NMS (New Midsize Sedan) and the version the rest of the world gets is sometimes referred to as B7.

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Old March 29th, 2016, 11:13   #16
car0430a
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No I'm not sure they are compatable with our coolant, and does not say which they are good for on the little slip of paper either I've used them pretty accurately before on Chyrsler spec HOAT coolant. Upon further investigation into the coolant question thread I did find my coolant pulled out of the resavavor does look more orange than new coolant. I'm coming up on my 30k oil change guess I will have to see what the stealership will get for a coolant flush.
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Old April 3rd, 2016, 23:24   #17
jimbo1mcm
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Sure would be nice to have a video from the OP showing how it works.
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Old April 4th, 2016, 04:37   #18
nord
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In this case I really don't see the need for a video. Words work as well or better. Simply remove the small hose at the right upper (return) side of the radiator at the plastic neck. Plug the rubber hose because it runs directly to the coolant reservoir. Apply vacuum (shop vac) to where the filler cap on the reservoir would normally be and watch the action.

Cycle the vac on and off until not much coolant is being removed, then fill the system with distilled water. Some have suggested filling with distilled water and cleaning chemicals. You'll note that the system is mostly full when liquid begins to flow out the neck where the small hose was removed. Replace the hose and drive the car to bring it up to temp.

Repeat the purge cycles until you see clean water, then follow my instructions about filing with new coolant. And don't forget to clean the reservoir before you add the new coolant.
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Old April 4th, 2016, 07:59   #19
jimbo1mcm
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Thanks. Will do
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Old April 5th, 2016, 12:46   #20
Rico567
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Quote:
Originally Posted by car0430a View Post
No I'm not sure they are compatable with our coolant, and does not say which they are good for on the little slip of paper either I've used them pretty accurately before on Chyrsler spec HOAT coolant. <snip>
My understanding is that the coolant test involves measuring pH (the measurement of acid <> base on a scale of 1-14), and that the trouble starts when the pH gets too low (acidic). That means that the test strips are just pH strips, and anything that measures the relevant range should work. The question is, what is the acceptable pH range?
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Old April 5th, 2016, 17:05   #21
nord
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Use new coolant as a baseline and go from there.
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Old April 7th, 2016, 09:55   #22
r11
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Got me a jug of G13, will do the change ... sounds too ez not to !
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Old April 22nd, 2016, 03:50   #23
arikinthecity
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A YouTube video would be perfect for this. Some of us are not experts on doing these things. A pic is worth a 1000 words and a video is about 100K.please make a video and post a link
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Old April 22nd, 2016, 05:04   #24
251
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nord - please post a picture or two showing which hoses you are talking about. Will help if you can add arrows and labels. Also include an image of your shop-vac nozzle to show the size of it in relation to where the hose was removed - have no idea if you have a small or big shop-vac and attachment sizes/types do vary a bit.

Please remember some of us are still learning about these cars and unlike you have not gone through the whole cooling system (know you have had more than your share of fussing with coolant-related issues) so we lack the experience and knowledge you possess. What seems obvious to you may not be so clear to others.

And I do thank you for posting your experiences here as it does help other owners perform maintenance tasks, find solutions to problems and/or learn more about our NMS Passats.
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Old April 22nd, 2016, 08:53   #25
nord
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How about you just call me and I'll step you through the whole procedure? Truthfully I get the feeling that a number of you (with the best of intentions) are simply too anal and find it difficult to believe this procedure is so simple.

One small hose, a clamp, and a vacuum source which will more or less seal the cap area of the reservoir. That's all! Don't be afraid.

So... Bruce Miller (607) 358-7435 (EDT)
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Old April 22nd, 2016, 11:53   #26
nord
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Default Easy coolant flush photos





Last edited by nord; April 22nd, 2016 at 12:07. Reason: Text added.
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Old April 22nd, 2016, 12:12   #27
nord
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Sorry - I'll summarize and clarify...

Reservoir - Any suction source that will allow vacuum to be applied to the reservoir.

Radiator hose as pictured. Remove the small rubber hose and follow my instructions in the other threads.

Rag? It highlights the hose area. Not necessary but good for soaking up minor coolant drips.
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Old April 22nd, 2016, 13:22   #28
unixb0y
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Why not disconnect the small hose at the cooling bottle?
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Old April 22nd, 2016, 13:42   #29
nord
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Because when you go to fill the system the open neck gives an excellent indication of fluid level and easily shows the transition between water and actual coolant.

This isn't to say that my way is the only way. It's just that I know what's simple and what works.
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Old April 22nd, 2016, 14:00   #30
unixb0y
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Quote:
Originally Posted by nord View Post
It's just that I know what's simple and what works.
Makes sense... Gonna test this on our 2.0T FSI MKV Jetta. Need to find an old shopvac.
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