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325i Guy 
Newbie 
Joined: 05-February-2004 Location: United Kingdom Status: Offline Points: 4 |
 Topic: E 30 TACHOPosted: 05-February-2004 at 20:11 |
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Ive got a 1988 e30 325i and the rev counter temp gage and mpg meter has just stopped working, Ive tried all the fuses wtc but to no avail did notice it has a few non bmw relays in there though Ive been told it is a known fault but no 1 seems to know the cure can any 1 shed some light on it for me. thanks a frustrated bimmer boy |
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kbannon
Admin Group 
E39 525i Sport Individual Joined: 09-October-2002 Location: 64 Zoo Lane Status: Offline Points: 15508 |
Posted: 05-February-2004 at 20:15 |
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Welcome to the forum your SI batteries have just died! See BMW Service Indicator (SI) Lights in the FAQ forum. |
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Current: 2009 E60 520d "Sport" tractor
Previous: 1989 E30 320i SE 1997 E39 523i 2003 E39 525i Sport Individual |
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thepits
Moderator Group
Joined: 09-July-2003 Location: far far away Status: Offline Points: 10000473 |
Posted: 06-February-2004 at 22:39 |
He's right you know! But the SI board is........... 1/ Readily available from most breakers 2/ Cheap 3/ Easy to fit. 4/ and all E30's are all the same (oh yes they are!!) So if you don't want to f*rt around soldering in new batteries, do what I've done twice now (on two different cars before anyone says anything!) and swap it for another one 
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Cats know your every thought.
But don't care. |
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325i Guy
Newbie
Joined: 05-February-2004 Location: United Kingdom Status: Offline Points: 4 |
Posted: 08-February-2004 at 15:21 |
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nice one boys. Ill give it a go when i can find my self a si board. if this aint the cure has any 1 else got any other idea's but im hoping this will be the cure. im armed with info and a haynes manual so we'll see how i get on, cheers all |
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falkster
Bavarian-Board Contributor 
Joined: 12-August-2003 Location: Yorkshire Status: Offline Points: 825 |
Posted: 08-February-2004 at 15:48 |
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ten minute job and that includes the fag afterwards
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Z3M Roadster (gone....just...but not forgotten...yet)
E30 M3 (Toy) Alfa 147 (just gone) BMW 330d (new work horse) Daimler Double 6 (no idea yet) |
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b318isp
Moderator Group
Joined: 10-October-2002 Location: Ireland Status: Offline Points: 2057 |
Posted: 09-February-2004 at 10:01 |
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The 4 and 6 cylinder cars have different clusters due to a different trigger for the tacho. The problem is that 2nd hand boards may fail as you don't know the age of the batteries. If you can solder then I'd recommend putting brand new ones in.
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thepits
Moderator Group
Joined: 09-July-2003 Location: far far away Status: Offline Points: 10000473 |
Posted: 09-February-2004 at 20:42 |
True & True - but if you go to FAB, Jason will check it out for you first to make sure it is correct and OK. (And they are so cheap, you'll get a spare to practice your soldering on!  )
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Cats know your every thought.
But don't care. |
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keef
Newbie
Joined: 02-February-2004 Location: United Kingdom Status: Offline Points: 12 |
Posted: 13-February-2004 at 22:23 |
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"ten minute job and that includes the fag afterwards" Izzat right? Getting the instrument cluster out seems to involve taking the wheel off and all sorts of stuff. I need to get to the back of my speedo, and the idea's a bit daunting... keef |
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kbannon
Admin Group
E39 525i Sport Individual Joined: 09-October-2002 Location: 64 Zoo Lane Status: Offline Points: 15508 |
Posted: 13-February-2004 at 22:59 |
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I have taken the cluster out a few times and never onc needed to take off the wheel (is M-tech wheel different?)
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Current: 2009 E60 520d "Sport" tractor
Previous: 1989 E30 320i SE 1997 E39 523i 2003 E39 525i Sport Individual |
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paul325i
Really Senior Member II
Joined: 23-January-2003 Location: United Kingdom Status: Offline Points: 666 |
Posted: 14-February-2004 at 13:44 |
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No you don't need to take the wheel off atall, thats just for people who think the dials are twice the size they are. Don't need to take the column shroud off either. Intruments just unscrew (lots of screws mind) and you have to wiggle them about at funny angles to get the plugs and the ABS bulb out of the back, then they simply come out. |
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keef
Newbie
Joined: 02-February-2004 Location: United Kingdom Status: Offline Points: 12 |
Posted: 14-February-2004 at 16:50 |
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Thanks for the comforting words. I looked at the Haynes manual and went a funny shade of pale... My old Scimitar was like that. "To remove and replace the steering colum bushes, first remove the dashboard (see Chap nn)... To remove the dashboard, first remove the windscreen..." Nah. It went to it's grave with slightly loose column bushes keef |
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dbanbery
Senior Member II 
David S Banbery [L/20973] Joined: 05-August-2003 Location: United Kingdom Status: Offline Points: 235 |
Posted: 20-February-2004 at 11:41 |
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there is a difference between old and new si boards regardless of model.... i went and bought a complete instrument cluster to nick some bits off to put on mine and i put them side by side and they are completely different! half of the stuff isnt intechangable! my ic is an early south african one that had the speedo converted, but not the econometer...... me thinking this was a simple swap with the tacho i started to do this..... the si board on mine is different too..... mine has the AA size rechargables on it with the black coding plug that goes into theb ack of the speedo, where as the newer one has a coding block thing that plug into the back of the si board below the tacho(if i remember correctly) and smaller batteries (the ones aboput an inch long and the thickness of AAA ones) the only thing as far as the clocks go that was physically interchangeable was the temerature guage, and petrol guage, and when i fired the car up with the later petrol guage it showed i had half the amount of fuel it really had. i put this down to a difference in voltage...... also the plastic on the back of mine was tan/cream and the newer one was sky blue. dammit im a geek |
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paul325i
Really Senior Member II
Joined: 23-January-2003 Location: United Kingdom Status: Offline Points: 666 |
Posted: 20-February-2004 at 23:32 |
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Ah i can beat you in the geek stakes slightly The pre 89 (not just pre facelift) cars had twin AA size 1.5v Ni-cad cells, on later cars they were changed for the Li-ion type batteries. BMW also changed the wiring on the board so that when the car was running the si board used the car as a power source instead of relying on the batteries for power at all times. I replaced my si 1 year ago with a new one from BMW, i can only say that they must have been sitting about for many many years in the factory as the batteries are dead already! Edited by paul325i |
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E 30 TACHO
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kbannon wrote:
