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

Refer to the owner's manual for your particular vehicle. Some can, others can not.

Really???? That's your answer???

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

THANKS: I missed the ABS... DO NOT USE PS FLUID FOR BRAKE FLUID.

no sweat Joe

Roy

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.