![BMW E30 3-Series Service Indicator Battery Replacement(1983-1991) | Pelican Parts DIY Maintenance Article BMW E30 3-Series Service Indicator Battery Replacement(1983-1991) | Pelican Parts DIY Maintenance Article](https://cdn2.pelicanparts.com/more_info/Customer_Comment_Images/1615212556-11036.jpg)
BMW E30 3-Series Service Indicator Battery Replacement(1983-1991) | Pelican Parts DIY Maintenance Article
![BMW E30 3-Series Service Indicator Battery Replacement(1983-1991) | Pelican Parts DIY Maintenance Article BMW E30 3-Series Service Indicator Battery Replacement(1983-1991) | Pelican Parts DIY Maintenance Article](https://cdn2.pelicanparts.com/more_info/Customer_Comment_Images/1427155798-5180.jpg)
BMW E30 3-Series Service Indicator Battery Replacement(1983-1991) | Pelican Parts DIY Maintenance Article
![My temp gauge and tach were not working so I replaced SI batteries but realised that there is a small repair done on pcb trace and some of the transistors are blown. My temp gauge and tach were not working so I replaced SI batteries but realised that there is a small repair done on pcb trace and some of the transistors are blown.](https://preview.redd.it/my-temp-gauge-and-tach-were-not-working-so-i-replaced-si-v0-6xoth7jpsnra1.jpg?width=640&crop=smart&auto=webp&s=ec573703955c3dd9c8f43c94f43ee7cee341f2d4)
My temp gauge and tach were not working so I replaced SI batteries but realised that there is a small repair done on pcb trace and some of the transistors are blown.
![BMW E30 3-Series Service Indicator Battery Replacement(1983-1991) | Pelican Parts DIY Maintenance Article BMW E30 3-Series Service Indicator Battery Replacement(1983-1991) | Pelican Parts DIY Maintenance Article](https://cdn2.pelicanparts.com/more_info/Customer_Comment_Images/1382544079-7488.jpg)