Low battery symptoms? 1. Slow start (most obvious) 2. Trans program 3. Gauges go haywire, especially the tach 4. "Floating" gas gauge 5. Dim lights 6. Poor engine responce
One other thing to check is the condition of the positive battery lead where it protrudes though the right-rear wheel well. It can get corroded too. You'll have to peel back the rear of the fender liner and pull the battery to get a good look at both sides. Good luck with it.
227 posts · Joined 2008. #2 · Apr 9, 2011. battery. Go for a good long drive and see if it is still weak. Or get a battery charger and charge it overnight === actually new battery chargers will indicate the state of the battery when you connect it up. If the battery don't keep a charge then it is pretty well done..
BMW 3 Series – (Gabriel Nica / Shutterstock) The most common symptoms of dead battery in BMW 3 Series are slow engine crank, no start, dim lights, flickering dashboard lights and clicking noises when trying to start the engine. The most common causes of dead battery in 3 Series are internal degradation of the battery due to old age, and bad They seem to last about 3-4 years these days When buying a new one make sure it's coded to your car. Failure to code it to your car will result in the battery being overcharged dramatically reducing it's life expectancy. I need a new battery too. Keeps getting those annoying low batt warnings. I took the car back in on 6/17 and the dealership diagnosed the problem as a bad CAS (Comfort Access Control) Module. They had the car from 6/17 to 7/10 and charged me $630. 3 days later the same symptoms appeared and I took the car back in on 7/15. The current diagnosis is a bad RDC (Tire Pressure Control) Module. QUEgq1A.bmw e90 bad battery symptoms
