Manchester area Tach and OBC fixed for £100?

[E30325imanc]

I have a non-working tach that is in all honesty getting me a bit depressed. I've trawled through the search articles on here to no avail. I basically need it working and have taken it to a couple of auto-electricians, who were non BMW and didn't really have a clue.

Would anyone be able to sort it for me? I can certainly provide some background into the wiring history - it did work at one time!

If someone could sort this pretty easily and fit an OBC for me (I've installed most of the wiring) then I'm happy to pay £100.

Not a bad little incentive for Christmas surely! Oh and you'd be doing me a mucho favour, because I can then start getting my interior sorted.

Feel free PM me for more details if you can help. I am in the Manchester/Macclesfield area

[leeparkes]

Does everything else work on the cluster?

[E30325imanc]

Hi lee. Yes, just that and the econometer

[mrLEE30]

Econometer - does it just swing side to side or not move at all?

[E30325imanc]

A few days ago the started to flick. But dead again now

[Rtaylor2208]

Check Fuse 11 or 12, can't remeber exactly which one. I had the same problem and was down to butcherd wiring for the stereo. The speedo \ mpg guage and stereo share this wiring some how. For me this was blowing the fuse.

Brianmoore will probably be along to confirm the fuse number as I have got that wrong in the past.

[E30325imanc]

Yes apparently all the fuses are fine. I did ask to check 11 and 12 though

[djsimmy]

i have same issue..

no rev,no mpg, no obc

[Rtaylor2208]

Has it had a aftermarket stereo fitted? As I mentioned above mine was due to butchered wiring it could still be related.

[E30325imanc]

It has and I'm now wondering if that's the cause as I now remember that everything was working fine before that. Is there anything I can do to check/remedy?

[Rtaylor2208]

With mine I bought a new wiring harness adapter (about £5 on ebay) then trimmed all the cut and taped wires and wired into the new harness adapter.

It means then plugging in any stereo from the last 10 years or so in plug and play.

Mine was trully butchered with alot of wires just taped together. If your handy with a soldering iron, solder then heat shrink the joints or buy a tub of male and female bullet connectors (again ebay about £2) and crimp the wires onto them. Make sure all the wire colurs are correct as well. Live to Live etc.

If your not too good with electrics most decent car audio places would do it for you. Shouldn't be expenive It took me about half an hour to sort out and I only know a little about DIY car audio.

[E30325imanc]

Thanks R. Give me a week,I'm going to try and sort this. Will everyone know if that's what it was

[TouringTash]

My money would be on the Diff wire being faulty.

Did you ever swap that stock chip for the one I sent you with the 1.3 bits?

[E30325imanc]

Hi Tash, no I haven't tried the chip. The guy who installed my stereo is going to look at it tomorrow. If its not that then I'll explore the diff wire next

[Cloggy Saint]

My money would be on the Diff wire being faulty.

Pretty sure it's just the speedo' that gets it's reading from the diff?

[TouringTash]

I give up with this place.

Jesus H christ :roll.

unsubscribed.

[Cloggy Saint]

Problem?

[E30325imanc]

O.K I don't think it's the head unit. Had it taken out, wiring was done via a block connector and nice and neat. I've been recommended an auto electrician by the guy who installed the stereo, I'll get him to check out the diff wiring?

[DanThe]

My money would be on the Diff wire being faulty.

Did you ever swap that stock chip for the one I sent you with the 1.3 bits?

Converted from early to late management by any chance?

[E30325imanc]

Hi Dan, yes it was. Are we getting any warmer? wink eye What could that effect?

Thanks

[DanThe]

In that case you have wiring missing from the main body harness. You will have a white 3 pin plug hanging down by the clocks/steering column, this is the input for the RPM/MPG gauge