Abs light and power cut

[Mecna]

Hello ! im here another time to ask you guys help about another problem.

in the last weeks my car randomly (2/3 times in 2 weeks) cutted engine power and abs light came up for like 1 second then all has returned in normal state.
Twice it happened while I was braking to a stop and the car died. turned it back on everything worked normally (it didn't struggle to turn on) ,
once it happened on the highway and from 4,000 rpm in fifth gear the car reached 2,000 with the abs light on and then immediately went back to 4,000 and the light went off.

Do you have any ideas where i have to look or what i have to do/change ?

Thanks as always

Marco

[theBMWbeast]

Had this exact fault way back when. Turned out to be a failing main relay. I replaced the main relay, and fuel pump relay. Has been fault free for the last 4 years.