Tachometer Fixed with Cheap Batteries - BMW E30 DIY Project ep15
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- Опубліковано 26 вер 2024
- The tachometer on my E30 was broken, so I couldn't see what RPM my engine was running at. I fixed it by replacing the original CR14250SE lithium batteries with some much cheaper and readily available CR2 batteries (a.k.a. 1/2 AA batteries). The old batteries were welded on, but we won't need to do any welding to replace them :-)
CR2 batteries Shopee link - shope.ee/4fM9Y...
This is my 1991 BMW E30, 318i, with M40 engine. Right hand drive, made in Malaysia. I am restoring it on my own, right here at home, in my porch, with some hand tools. The plan is to get the car to a "good working condition" so that I can use it as my main / only car. Subscribe to my channel to follow my progress - I also maintain a playlist of all my videos of this car: • BMW E30 DIY Project Ca...
Shopee link for the CR2 batteries I used - shope.ee/4fM9YE4TFk
This was fantastic, thank you
Great video! Thank you very much!
Working on this on my 89 e30 cabrio. It has the motometer. When I got to this step( 7:57 ) the batteries were super corroded and they are a much much bigger size (like a aa). Should be fine, I’ll jump with wire but kinda funny. The board is also vdo even though the cluster is motometer
I think you should match the voltage. An actual AA battery's voltage will be too different - should be fine if the old and new batteries have the same voltage 🤔
Yeah. I’ll validate. I just thought it was funny how they are different sizes. Thanks for making the video. Very helpful all around
You the man!
Thank you!. Just picked up am E30 and the tachometer doesn't work. I'll try this!
Hope it works for you
@@PorchGarage thank you. I'll keep you posted
Nice!
Hello, e36 have same batteries? My instrument cluster have same problem. Thank you
@@rifqirifansyah3171 sorry, i have no idea!
Where can I buy these batteries?
Great video. Thanks!
Hi. I think they are used for some old cameras, so maybe film shops will have them - I'm not sure.
Should be easy enough to find online - look for CR2 batteries
my green LEDs always light up when i turn on ignition switch. It goes off after turnign on engine. IS this also due to bad batteries?
Sorry, i haven't got a clue. Are you sure it's not just normal behavior like newer cars?
Anyway a lot of the stuff I've found regarding the E30 has been on E30Zone:
www.e30zone.net/e30wiki/index.php?title=Instruments#Dash_Lights
www.e30zone.net/forum/search.php?keywords=Tachometer&terms=all&author&sc=1&sf=titleonly&sr=posts&sk=t&sd=d&st=0&ch=300&t=0&submit=Search
@@PorchGarage thanks. I also consult this website. But I wonder what the SI batteries are really for other than powering the tachometer. Are they also used to store service indicator lights memories?
2:15 whats that exclamation point sensor for?
Hmm, I'm not sure. Maybe a check engine light? www.e30zone.net/e30wiki/index.php/Instruments#Check_Light
or maybe brake fluid level?
My e30s speedometer is sometimes at zero...the sometimes reads speed inaccurately can you do one on the speedo
Perhaps you can try the suggestions on E30Zone: www.e30zone.net/forum/viewtopic.php?t=279606
hello, you did not need to remove the steering wheel? Thanks for you feedback
Did not need to remove the steering wheel 😊
@@PorchGarage thank you! 👍👍
What are the symptoms? My fuse is burning like hell, will this be a fix?
Hi. For me it was only the tachometer and speedometer which worked intermittently. I don't think the batteries would cause problems with the fuses.
Where did you get the batteries from?
Any CR2 battery will do. I bought from Shopee - shope.ee/4fM9YE4TFk
My original batteries are ok, 3 volts each. where is my issue?
Sorry, no idea... Perhaps you can check the E30 Zone forums - www.e30zone.net/forum/search.php?keywords=Tachometer&terms=all&author=&sc=1&sf=titleonly&sr=posts&sk=t&sd=d&st=0&ch=300&t=0&submit=Search
Inicialmente reemplacé las dos baterías como se indica en el video, pero ni el tacómetro ni el indicador de consumo de combustible ni la computadora de abordo (OBC) funcionaron. Por lo anterior revisé el cableado y encontré que en el splice S319 estaban rotos 3 cables de los 7 que se encuentran en S319. Uní los 7 cables con soldadura de Estaño y en seguida todo funcionó. El splice S319 se encuentra en el cableado que está abajo de la bocina del conductor y los cables son de color rojo/verde.
I will check, thank you !!!
Need better instruction using tire scrapes to hold the batteries together.@@ludwig_der_grobe
I have the early model cluster
The rpm isn’t working, so I should change the batteries?
Sorry, i have no idea. Maybe you can check on the E30Zone wiki and forum
@Elias did you find the source of the problem already?
@@mullerman1104 no I didn’t
Best option to buy a new cluster
@@EliasRizk53 Do the Interior lights work? If not it’s a fuse.
You don’t have the bulbs in certain places because you car might not have the options
Oh, makes sense. Like ABS. Thanks!