Can I use regular automatic transmission fluid or power steering fluid as a substitute for brake fluid?

Tiny
WBLOOD1
  • MEMBER
  • 2000 MERCEDES BENZ ML430
  • 85,000 MILES
Can I use regular automatic transmission fluid or power steering fluid as a substitute for brake fluid?
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Sunday, June 3rd, 2012 AT 7:44 PM

6 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Refer to the owner's manual for your particular vehicle. Some can, others can not.
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Sunday, June 3rd, 2012 AT 7:54 PM
Tiny
WBLOOD1
  • MEMBER
Really? That's your answer?
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Sunday, June 3rd, 2012 AT 7:59 PM
Tiny
ASEMASTER6371
  • EXPERT
I would not. If you use the wrong fluid, then you destroy all the rubber seals related to the brake system. Most cases, it takes dot 4, 5 or synthetic.

Do not add any other fluid till you find the correct needed. It may say it on the top of the cap of the master cylinder.

Brake Fluid

Fluid Type MB Brake Fluid (DOT 4+) this is what alldata suggests

Roy
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Sunday, June 3rd, 2012 AT 8:12 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
THANKS: I missed the ABS. DO NOT USE PS FLUID FOR BRAKE FLUID.
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Sunday, June 3rd, 2012 AT 8:18 PM
Tiny
ASEMASTER6371
  • EXPERT
No sweat Joe

Roy
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Sunday, June 3rd, 2012 AT 8:20 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
I missed it and really appreciate you catching it. I've used ATF for PS fluid many times; however with this car, I would want to be careful.
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Sunday, June 3rd, 2012 AT 8:27 PM

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