2) Tried both key fobs no crank, no start. 3) Installed NEW battery - Voltage 12.4V at battery (registered it with carly app) (In carly app, it shows 11.78V for some reason) 4) Installed NEW Bosch Starter - has 12.3V to the starter solenoid wire. 5) Checked battery terminals, all seem good. • The excessive current draw causes damage to the battery positive cable plug contact CORRECTION Replace the positive battery cable at the front power distribution box. SPECIAL TOOLS NEEDED Note: A set of these tools listed below were sent to each BMW center in 2013 for the completion of another repair. Also, in the N54 and N52 engines the voltage regulator, a $45 part, can be changed w/o removing the entire alternator. If I remember correctly, running the car with all the accessories off should produce a fairly consistent 14 volts at the battery, if that is not the case, it is indicative of a voltage regulator issue. Pilgrim. 1486 posts · Joined 2006. #7 · Sep 4, 2017. The short and resulting drain are your battery problem. But that's a lot of current; you NEED to get this fixed ASAP. 1983 Datsun 280ZX Turbo. 2000 Jeep Grand Cherokee. 2008 BMW E91 328xi Sportswagon. 2009 BMW E92 328ix Coupe. A full-fledged electrical malfunction plagues your BMW when the alternator starts failing or goes bad. Even though your car may start, it will go off very soon. The headlights may become extremely dim. In serious cases of a bad alternator, the battery may get discharged and 'stone dead.'. A more visible symptom of a bad battery is swollen areas. A bulging or swollen battery case shows a frozen battery or hydrogen buildup inside the battery. An overcharging alternator is the primary cause of a swollen battery case. A battery that has elapsed its service lifespan can be the culprit. 21 posts · Joined 2015. #1 · Nov 12, 2015 (Edited) This all started when the car was sitting without battery 5 weeks. Symptoms. 1.heater not blowing warm just cold. 2. The car starts up works for about 10 mins gets up to 180F after this the fan starts to blow very loud after this yellow warning then follows the red warning in about 25 seconds. My battery was drawing too many-(not because too low) amps and car charging system diagnosed bad battery (poosible minor internal shortage) and shut off blower and radio and also raised charging rate (dash showed 15.3V) Vay Tiền Trả Góp Theo Tháng Chỉ Cần Cmnd.

bmw e90 bad battery symptoms