My bmw 3series abs light on how to reset the

abs light on means no abs
but you don't need it to stop
one or more of the wheel sensors are bad

A scanner can reset any light on the dash, if the problem has been fixed. A code reader will reset the engine light, again if the problem is fixed.

bit of dirt in abs ring
jet wash all wheels to clear the dirt

Replace the battery. (And possibly the Alternator). Reset any codes and try again. A week battery will cause al kinds of havoc and will result in just what you describe. BMW's are very sensitive to correct voltage.

the abs has nothing to do with brake pads. the abs runs on speed sensor on each tire. if your brake light is on all bmw have a wire in the brake pads for warning the brakes are low

Depending on what warning is on... if it's stating brake sensor then one has come loose or cable got pinched when re-installing. If it's ABS light that needs to be reset w/reset tool.

ABS/ASC module is faulty
CLASSIC ABS FAILURE SYMPTOMS:
- Most of the time, the problem is the ABS module or one of the 4 wheel speed sensors (& sometimes the brake pressure sensor)
- In my 2002 BMW E39 DSC, three orange (warning) cluster display lights lit, ABS, Brake, & DSC
- The 3 warning lights reset when the ignition is turned off, only to repeatedly reappear within minutes of normal driving
- The fault is often intermittent leading you to falsely believe you've resolved the problem (proper diagnosis is important)
- Sometimes the fault only appears when the engine is hot; other times only at speeds over 40 mph
- Carsoft may erroneously show a rear speed sensor failure; but just replacing the speed sensor may make no difference.
- All the work is in correct diagnosis of the problem; parts replacement is trivial (from 1 to six bolts in a few minutes)
- Hence, this BMW E39 ABS 3-warning light DIY will concentrate on understanding and diagnosis of the problem

Check to see if your brake pads and rotors are in good condition. Or if you have replaced the pads yourself and have not reset the wheel sensors this would cause the ABS Antilock Brake System light and the ASC Automatic Stability Control light to stay on as the ASC uses the ABS brakes with computer assistance to control the car

make abs sensor is properly plug in if they are not you will see that light

press the satrt button with foor off the brake until lights turn on,close the doors and press and hold the trip button on the inst cluster,abs will come up and then go,than you will see all the diff cbs requirements on left side press button until the brakes come up and press and hold again, it should reset to ???tkm