It should be a 3/8 wrench. Correction 10MM and use a socket
You need 10mm wrench
You need a 10mm wrench.
A 5/16 brake wrench
3/8 Allen wrench
Depends on the model of brakes. I have done thousands of brakes and usually I get under with 1/4, 5/16 and 7mm. One of them inevitably fits the bleed nipples.
Either 7/16ths or 10mm
bleed the brakes. check fluid level
You need to bleed the entire brake system. Bleed in this sequence, RR, LR, RF, LF. If you do not know how to do this, do a search online for "bleeding brakes" THE REAR WHEEL CYLINDERS MAY BE LEAKING SHOULD ALWAYS CHANGE WHEN DOING BRAKES AND BLEED REAR BRAKES
Have a helper pump the brakes a few times and hold pressure, reach behind the wheel you need to bleed and release the bleed screw, fluid or air should come out. Repeat this until no more air is released and repeat for the other wheels
You bleed the brakes just like you bleed any other cars brakes, there is no special way to bleed anti-lock brakes.
Take it to a mechanic. Easy, simple, costs a little more, but it gets done right.
To bleed Tektro brakes properly, you will need a bleed kit, Tektro mineral oil, and a 4mm wrench. First, remove the wheel and brake pads. Attach the bleed block to the caliper to prevent oil from leaking. Next, remove the bleed screw and attach the syringe from the bleed kit. Slowly push the oil through the system until no air bubbles are visible. Tighten the bleed screw and remove the syringe. Finally, reinstall the brake pads and wheel, and test the brakes to ensure they are working properly.