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tomsolidgould · 07-07-2008, 10:31 PM

So I finally had a weekend without the wife and kids and decided to get my dash working.

I replaced the rechageable batteries in my si board. Everything now works as it should but my speedo is still dead and the orange inspection light is still on. While it was apart I gently touched the needle to see if it could move freely and it did.

Any ideas?

thanks in advance,

Tom

Eugene · 07-07-2008, 10:42 PM

Check your speedo sensor in the diff and see if it plugged in, then I would check continuity between that and the speedo. Are all your fuses good?

fastbmw · 07-07-2008, 10:49 PM

The inspection light needs to be reset through the engine bay diagnostic plug.

http://www.beckerelectronics.com/BMW...ightreset.html

Weeman83 · 07-07-2008, 11:13 PM

I had an intermittent problem where the speedo would cut in and out at random. Differential speed sensor was verified as not hte problem. Like ^ said, it would be wise for you to rule that out first.

I finally fixed the problem by reflowing all the solder connections at the rear of the speedo. This is a common problem on E30s as the solder board phenolic material became brittle over the years and lost contact with the solder blobs. Easier done than it sounds. Let me know if you need help with that!

Good luck!

tomsolidgould · 07-07-2008, 11:55 PM

Thanks guys for the speedy response.
I'll check the speed sensor tomorrow. if that isn't the problem then I'll be asking for help weeman.

Tom

Jono-vision · 09-24-2009, 11:32 AM

Don't know but have you checked the gears in the speedo? I know my E28 has gears, plastic gears that have sheared off, old and brittle.

07-07-2008, 10:31 PM	#1 (permalink)
tomsolidgould Member Name: Thomas Joined: May 2008 From: East Vancouver Posts: 91 iTrader: 0 Thanks: 10 3 Times in 3 Posts	non working speedo So I finally had a weekend without the wife and kids and decided to get my dash working. I replaced the rechageable batteries in my si board. Everything now works as it should but my speedo is still dead and the orange inspection light is still on. While it was apart I gently touched the needle to see if it could move freely and it did. Any ideas? thanks in advance, Tom

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07-07-2008, 10:42 PM	#2 (permalink)
Eugene Senior Member Joined: Mar 2006 From: Vancouver Posts: 403 iTrader: 0 Thanks: 4 4 Times in 4 Posts	Check your speedo sensor in the diff and see if it plugged in, then I would check continuity between that and the speedo. Are all your fuses good?

07-07-2008, 10:49 PM	#3 (permalink)
fastbmw Senior Member Supporting Member Joined: Mar 2004 From: Vancouver Posts: 1,263 iTrader: 0 Thanks: 0 5 Times in 5 Posts fastbmw's pictures	The inspection light needs to be reset through the engine bay diagnostic plug. http://www.beckerelectronics.com/BMW...ightreset.html

07-07-2008, 11:13 PM	#4 (permalink)
Weeman83 Senior Member Joined: Oct 2007 From: Richmond Posts: 1,293 iTrader: 0 Thanks: 13 14 Times in 9 Posts Weeman83's pictures '91 BMW 318IS	I had an intermittent problem where the speedo would cut in and out at random. Differential speed sensor was verified as not hte problem. Like ^ said, it would be wise for you to rule that out first. I finally fixed the problem by reflowing all the solder connections at the rear of the speedo. This is a common problem on E30s as the solder board phenolic material became brittle over the years and lost contact with the solder blobs. Easier done than it sounds. Let me know if you need help with that! Good luck!

07-07-2008, 11:55 PM	#5 (permalink)
tomsolidgould Member Name: Thomas Joined: May 2008 From: East Vancouver Posts: 91 iTrader: 0 Thanks: 10 3 Times in 3 Posts	Thanks guys for the speedy response. I'll check the speed sensor tomorrow. if that isn't the problem then I'll be asking for help weeman. Tom

09-24-2009, 11:32 AM	#6 (permalink)
Jono-vision Senior Member Name: Jono Joined: Aug 2009 From: Victoria Posts: 103 iTrader: 0 Thanks: 8 0 Times in 0 Posts Jono-vision's pictures '83 BMW 528e	Don't know but have you checked the gears in the speedo? I know my E28 has gears, plastic gears that have sheared off, old and brittle.

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