[Niig]

As a mechanic I run into issues with plenty 3series most the time the issues with no start or weak starting is the ground cable that comes from the engine to the body ground. If you take jumper cables and connect them to the engine(metal parts) to the chassis of the car and try and start it then, If it starts fine everytime then its your ground wire. Ive seen some rusted, half ripped and all kinds of ways smh so many ppl change starters and it doesnt fix anything. That should be the first thing you check before wasting your money on starters. My issue tho is that only the brake and driver airbag light(red) comes on nothing else. Once I figure out the issue ill be sure to let you guys know. Any suggestions would help!!!!