DD BMW 8387543 OEM 61-13-6-924-976 (USED) TRUNK BATTERY VOLTAGE REGULATOR E39 E53 61-13-8-387-541
The battery light stutters when the car is warmed up on idle. (01 540i, 6spd). This does not happen if the AC is on, or when engine isn't fully warmed up yet.
Quick question about BATTERY VOLTAGE !! - Xoutpost.com
03 BMW 525I E39 REAR TRUNK BATTERY VOLTAGE REGULATOR 8387543 OEM AS54 | eBay
BMW E39 5-Series Battery Replacement | 1997-2003 525i, 528i, 530i, 540i | Pelican Parts DIY Maintenance Article