Brake abs lights r on

I got a 04 325xi I had problems wit it sputtering so I changed the ignition coils also the maf I cleared the codes n now the check engine light went off but when I'm driving the brake goes on as well as the abs n traction control n eml any ideas wats this is

What kind of coils and MAF did you buy?

I bought the Bosch ones that r a lil cheaper n I got the maf of ebay

Had this same problem. Get a new valve cover

Have you checked the fluid level in the Master Cylinder Reservoir? Have you looked for leaks at the brake hoses leading to the calipers? Are any of your brake pads low/almost used up? Changing out the coils and MAF should have no bearings on the brake and ABS lights, completely different systems within the car. BUT if your sputtering problem was vacuum related, could be a bad vacuum hose to the brake booster, however, if that was the case, the codes you had before replacing the coils and MAF should have come back after driving a bit.

I cleared the codes by unpluging the battery n holding the clamps for a sec or two would that have anything to do wit it cuz my friend had a new 740 n he said that when he unplug the battery he needed to reset the computer or something like that I thought it was the same