Brake fluid
Thread Starter
Junior Member
Joined: Jun 2018
Posts: 16
Likes: 3
GLK350
Brake fluid
I want to flush the fluid. I have 2 liters of genuine VW/Audi fluid on hand, which is Dot 4. The boiling points match Mercedes specs. I would think that this would be very quality fluid since Audi’s also cost a lot. They very well could use the same part suppliers. Mercedes specs aren’t listed on it, but why would they test for that? I hate to go buy two liters of another fluid when I have this on hand. Has anyone used it before in a Mercedes? I find it hard to believe it will ruin the brake system.
Thanks.
Thanks.
Senior Member
Joined: Jul 2014
Posts: 422
Likes: 61
From: South East US.
2015 GLK350
I agree with Marek. If the fluid does not specifically say that it meets the Mercedes specifications then don't use it. You can't just guess that because it is expensive it must be good and compatible. While the boiling point may be ok, how do you know that it does not contain chemicals that could prematurely corrode or otherwise compromise the materials used in the flexible seals? I would rather spend a little bit of money on proper fluid than suffer blown out caliper seals down the road.
MBWorld Fanatic!
Joined: Jul 2012
Posts: 1,369
Likes: 319
From: WI
GLK 250
Agreed; something that needs doing only every 2 years isn’t where I’d try to skimp, especially being a safety issue.
Use the MB spec stuff and save your VW/Audi fluid for those applications.
Use the MB spec stuff and save your VW/Audi fluid for those applications.
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From: Northern NJ
GLK 350 / Porsche 993
MBWorld Fanatic!
Joined: Jan 2009
Posts: 2,780
Likes: 115
From: Northern NJ
GLK 350 / Porsche 993
I agree with Marek. If the fluid does not specifically say that it meets the Mercedes specifications then don't use it. You can't just guess that because it is expensive it must be good and compatible. While the boiling point may be ok, how do you know that it does not contain chemicals that could prematurely corrode or otherwise compromise the materials used in the flexible seals? I would rather spend a little bit of money on proper fluid than suffer blown out caliper seals down the road.
