![How to methodically find the battery drain in our E46–and fit an Opt | BMW M3 | Project Car Updates | Grassroots Motorsports How to methodically find the battery drain in our E46–and fit an Opt | BMW M3 | Project Car Updates | Grassroots Motorsports](https://s3.us-east-2.amazonaws.com/prod.mm.com/uploads/2021/05/17/1621281020_img_7038_mmthumb.jpeg)
How to methodically find the battery drain in our E46–and fit an Opt | BMW M3 | Project Car Updates | Grassroots Motorsports
![How to methodically find the battery drain in our E46–and fit an Opt | BMW M3 | Project Car Updates | Grassroots Motorsports How to methodically find the battery drain in our E46–and fit an Opt | BMW M3 | Project Car Updates | Grassroots Motorsports](https://s3.us-east-2.amazonaws.com/prod.mm.com/uploads/2021/05/17/1621280870_img_6929_mmthumb.jpeg)
How to methodically find the battery drain in our E46–and fit an Opt | BMW M3 | Project Car Updates | Grassroots Motorsports
![How to methodically find the battery drain in our E46–and fit an Opt | BMW M3 | Project Car Updates | Grassroots Motorsports How to methodically find the battery drain in our E46–and fit an Opt | BMW M3 | Project Car Updates | Grassroots Motorsports](https://s3.us-east-2.amazonaws.com/prod.mm.com/uploads/2021/05/17/1621292216_img_1717_mmthumb.jpeg)
How to methodically find the battery drain in our E46–and fit an Opt | BMW M3 | Project Car Updates | Grassroots Motorsports
Detailed step by step diagnostic DIY ... dead battery ... parasitic current drain | BimmerFest BMW Forum
![BMW E46 Battery Replacement and Connection Notes| BMW 325i (2001-2005), BMW 325Xi (2001-2005), BMW 325Ci (2001-2006), BMW 325ti (2001-2004) | Pelican Parts Technical Article BMW E46 Battery Replacement and Connection Notes| BMW 325i (2001-2005), BMW 325Xi (2001-2005), BMW 325Ci (2001-2006), BMW 325ti (2001-2004) | Pelican Parts Technical Article](https://cdn4.pelicanparts.com/BMW/techarticles/BMW-3-Series-E46/03-BASICS-Battery_Connection_Notes_and_Replacement/images_med/pic02.jpg)
BMW E46 Battery Replacement and Connection Notes| BMW 325i (2001-2005), BMW 325Xi (2001-2005), BMW 325Ci (2001-2006), BMW 325ti (2001-2004) | Pelican Parts Technical Article
Detailed step by step diagnostic DIY ... dead battery ... parasitic current drain | BimmerFest BMW Forum
![How to methodically find the battery drain in our E46–and fit an Opt | BMW M3 | Project Car Updates | Grassroots Motorsports How to methodically find the battery drain in our E46–and fit an Opt | BMW M3 | Project Car Updates | Grassroots Motorsports](https://s3.us-east-2.amazonaws.com/prod.mm.com/img/projectcars/BMW_m3_fuses_battery_drain_pTuRjMW.jpeg)