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Why does VW specify changing brake fluid every 24K? #5412779 04/25/20 12:04 PM
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dwcopple Offline OP
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That seems unreasonable


2019 RAM Big Horn 4x4 Blackout HEMI crew cab
2011 Chrysler 200 Limited 3.6L V6
1998 Mustang GT 4.6L V8 convertible
2019 VW Jetta SEL 1.4T
Re: Why does VW specify changing brake fluid every 24K? [Re: dwcopple] #5412789 04/25/20 12:13 PM
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Dave9 Offline
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We could try to fixate on only one thing but it is probably a combination of factors including:

- Revenue for dealership shops
- Err on the side of safety, they'll be checking things in addition to changing fluid.
- Poor design that doesn't hold up as long as some other brands
- Shift the warranty burden onto customers, so if you didn't tow the line and do every xyz maintenance item, your warranty on that subsystem is void.

Re: Why does VW specify changing brake fluid every 24K? [Re: dwcopple] #5412791 04/25/20 12:15 PM
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ABN_CBT_ENGR Offline
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any number of reasons- if you own one I would email their technical site and ask directly.

I don't say that to be "cutesy" but I know from experience that when OEM's deviate from what we can call "norms' there is always a reason and a driver.

If you own one it might benefit you to know

Re: Why does VW specify changing brake fluid every 24K? [Re: dwcopple] #5412803 04/25/20 12:29 PM
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skyactiv Offline
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If anything brakes on German vehicles are longer lasting in every respect than anything Asian or American.
I'd like to hear Travs experience on this matter.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 18' Elantra Sport 6 speed manual
The rude guy that points out reality


Re: Why does VW specify changing brake fluid every 24K? [Re: dwcopple] #5412804 04/25/20 12:30 PM
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ondarvr Offline
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Honda says three years no matter what the miles are.

Frequently they need to say something, so they error on the side of safety.

Plus I can't imagine the dealer being upset about it.

Re: Why does VW specify changing brake fluid every 24K? [Re: skyactiv] #5412811 04/25/20 12:37 PM
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Dave9 Offline
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Originally Posted by skyactiv
If anything brakes on German vehicles are longer lasting in every respect than anything Asian or American.
I'd like to hear Travs experience on this matter.


The surveys I've seen of average yearly vehicle maintenance and repair costs don't support that.

Last edited by Dave9; 04/25/20 12:38 PM.
Re: Why does VW specify changing brake fluid every 24K? [Re: dwcopple] #5412814 04/25/20 12:46 PM
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pbm Offline
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Brake fluid absorbs moisture which affects it's boiling point and effectiveness......I think the term is 'hygroscopic'...


'Journalism is Dead'
Re: Why does VW specify changing brake fluid every 24K? [Re: dwcopple] #5412824 04/25/20 12:58 PM
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edyvw Offline
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Answers here LOL


11' BMW 328i xDrive 6MT (Pennzoil Platinum Euro 5W40+ MANN filter)
11' VW Tiguan 2.0T (Castrol 0W30+OE filter)
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Re: Why does VW specify changing brake fluid every 24K? [Re: dwcopple] #5412849 04/25/20 01:22 PM
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slacktide_bitog Offline
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You can probably get away with doing it when you replace the pads and rotors, but brake fluid life mostly depends more on time than mileage, unless you boil the fluid drive

Most cars go to the junkyard on their original brake fluid

Re: Why does VW specify changing brake fluid every 24K? [Re: dwcopple] #5412850 04/25/20 01:23 PM
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edyvw Offline
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Originally Posted by dwcopple
That seems unreasonable

It is VERY reasonable.
First of all, warranty is not conditioning you to change brake fluid in dealership.
Second, brake fluid is hygroscopic. It absorbs moisture, when it does your boiling point goes down, when it goes down due to presence of moisture it can create "air pocket," and when it does you are out of brakes.
Third, it is cultural thing. Europeans, but especially Germans are obsessed with technical conditions of their vehicles. Every time you want to register car you need to pass technical inspection. One of the things they will check is boiling point or % of moisture (depends how each country does it). If boiling point is below 120c (as far as I remember when I was doing it) you cannot register vehicle. If moisture level is 3% or higher, you are also out (that is just brake fluid. There is slew of other things including how your headlight beams are set up).
So, when VW creates manual there is a LOT of cultural preferences that trickle down into it.
I personally change fluid every two years on all three vehicles using ATE TYP200 fluid. But then, I also have winter tires for all three vehicles etc.
It is your choice.


11' BMW 328i xDrive 6MT (Pennzoil Platinum Euro 5W40+ MANN filter)
11' VW Tiguan 2.0T (Castrol 0W30+OE filter)
15' Toyota Sienna AWD (Mobil1 5W30 EP+OE filter).
Re: Why does VW specify changing brake fluid every 24K? [Re: pbm] #5412852 04/25/20 01:24 PM
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loneryder Offline
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Originally Posted by pbm
Brake fluid absorbs moisture which affects it's boiling point and effectiveness......I think the term is 'hygroscopic'...

And the fluid they use these days is very hydroscopic.

Re: Why does VW specify changing brake fluid every 24K? [Re: dwcopple] #5412856 04/25/20 01:26 PM
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Paul_Siu Offline
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Brake fluid should be change every 2-3 years so while 24K seems a bit low it's not out of line. I would try to do this within the warranty period so there are no issues.

Paul

Re: Why does VW specify changing brake fluid every 24K? [Re: dwcopple] #5412859 04/25/20 01:30 PM
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edwardh1 Offline
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what does Toyota say?


These products are all new every year?? They are a revolution!!! Razor blades, mens shirts, TVs, wiper blades, gutter guards, hearing aids... according to the ads. But also all new last year
Re: Why does VW specify changing brake fluid every 24K? [Re: edwardh1] #5412861 04/25/20 01:31 PM
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edyvw Offline
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Originally Posted by edwardh1
what does Toyota say?

Considering their brake performance, I am not sure they nailed that down.


11' BMW 328i xDrive 6MT (Pennzoil Platinum Euro 5W40+ MANN filter)
11' VW Tiguan 2.0T (Castrol 0W30+OE filter)
15' Toyota Sienna AWD (Mobil1 5W30 EP+OE filter).
Re: Why does VW specify changing brake fluid every 24K? [Re: edwardh1] #5412883 04/25/20 01:57 PM
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Pelican Offline
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On my Lexus it say every 3 years. On my MB it says every 2 years.

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