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What speed was I going Officer?

Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 6 Series
Forum Discription: This forum will deal with any issues on the BMW 6 Series (E24, E63 & E64)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=21259
Printed Date: 06-May-2024 at 04:32


Topic: What speed was I going Officer?
Posted By: rattusM3
Subject: What speed was I going Officer?
Date Posted: 25-August-2005 at 03:53

Hi Guys,

Have a 1985 M635 in which the Speedo and Engine Temp Gauge has stopped working, any ideas?

Fuse seems to control the entire instrument panel so is not that, is it just the case of speedo and temp gauge or sensor failing at roughly the same time?

Kevin



-------------
E28 Alpina B9
E28 M535i (now a donor for B9)
E24 M6 (work has started to get back up to scratch)
E30 M3 (New Engine (almost), Cams, Brakes, ECU, Suspension, Alpha-N - Thanks Stannard Motors)
E39 530i Touring - Now Sold, sob, sob
E39 523i Touring



Replies:
Posted By: eta.
Date Posted: 25-August-2005 at 06:43
99% likely to be the ni-cad batteries have died on the Service Interval (SI) board, or the board may have a fault. Batteries can be got from Maplins (they have to be soldered in). The SI board lies behind the instruments. Lots of previous posts about this issue which affects pretty much all the 80's models.

A new board is circa £150 and you may be better advised to find a s/h one or have yours refurbed by a specialist who will also check all the instruments too. I had mine done 3 years ago for about £100.


Posted By: rattusM3
Date Posted: 25-August-2005 at 08:22

Hi eta, thanks for the feedback.

If the ni-cad batteries have died would this affect the Fuel and Rev counter as well, as these are still working.

Kevin


OK,  just read some of the old posts on similar problem so will check SI board for leaking batteries etc.


-------------
E28 Alpina B9
E28 M535i (now a donor for B9)
E24 M6 (work has started to get back up to scratch)
E30 M3 (New Engine (almost), Cams, Brakes, ECU, Suspension, Alpha-N - Thanks Stannard Motors)
E39 530i Touring - Now Sold, sob, sob
E39 523i Touring


Posted By: Sohlman
Date Posted: 31-August-2005 at 08:33
If the speedo is not working, does the trip computer work and give you MPG or has this also failed. If the trip computer is working then the SI board is the problem. If the OBC is not working then the sensor on the diff is the problem related to the Speedo. The engien temperature guage is controlled by a sender unit on the engine these don't usually go wrong. From the sounds of things it is more than likely the si Board. The circuits can go dry, the battereis can fail and leak all over the board and the plastic screws that hold the needles on can break and unscrew. My advice would be to either get your board reconditioned or speak to BMW. Once of the BMWCC member recently bought a new one from there BMW dealership for about £200+ vat.

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Sunday 10th July Brooklands Sharkfest and Big Coupe Day. http://635csi.mysite.wanadoo-members.co.uk/ - Coupe Events


Posted By: eta.
Date Posted: 31-August-2005 at 14:56
If you are a CC member you should get 10% discount.


Posted By: M3AG
Date Posted: 01-September-2005 at 08:01
They should do, but not all do!

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we're the Sweeney son, and we ain't had our dinner.....


Posted By: rattusM3
Date Posted: 27-September-2005 at 08:49

Just to say thanks for your input, have managed to source a complete instrument panel / SI board with new batteries added for £150.00 and will use my existing one as a spare probably.

I am also getting some other work done as well at SJ Automotive in Knaphill which is funny as I saw Sohlman's car there today.
Mr Jones is a friend of a friend so small world.

Kevin


-------------
E28 Alpina B9
E28 M535i (now a donor for B9)
E24 M6 (work has started to get back up to scratch)
E30 M3 (New Engine (almost), Cams, Brakes, ECU, Suspension, Alpha-N - Thanks Stannard Motors)
E39 530i Touring - Now Sold, sob, sob
E39 523i Touring


Posted By: Sohlman
Date Posted: 27-September-2005 at 16:32

Is a very small world.

Will be around next week with Steve to get my new fuel tank fitted. Ill be there all day on Wednesday if you are around.

 



-------------
Sunday 10th July Brooklands Sharkfest and Big Coupe Day. http://635csi.mysite.wanadoo-members.co.uk/ - Coupe Events


Posted By: rattusM3
Date Posted: 28-September-2005 at 03:54

Hi James,

Car going to Steve's on Tuesday where I will leave it with him for a few days.
If interested I could pop over Wednesday lunchtime as during the week I work and live in Woking.

Kevin



-------------
E28 Alpina B9
E28 M535i (now a donor for B9)
E24 M6 (work has started to get back up to scratch)
E30 M3 (New Engine (almost), Cams, Brakes, ECU, Suspension, Alpha-N - Thanks Stannard Motors)
E39 530i Touring - Now Sold, sob, sob
E39 523i Touring


Posted By: Sohlman
Date Posted: 28-September-2005 at 04:03
Sounds like a plan to me. I will see you on Wednesday 5th October at lunchtime.

-------------
Sunday 10th July Brooklands Sharkfest and Big Coupe Day. http://635csi.mysite.wanadoo-members.co.uk/ - Coupe Events


Posted By: Sohlman
Date Posted: 07-October-2005 at 12:48

Met up with Kevin on the Tuesday in the end. Has two very nice cars. His bargain M635 needs a bit of work, however the E30 M3 is jaw droppingly good. Spend about an hour chatting and exchanging car stories. Is nice to meet up with cool like minded people via this forum. Thats how it should work.

Just thought i would mention it.

James



-------------
Sunday 10th July Brooklands Sharkfest and Big Coupe Day. http://635csi.mysite.wanadoo-members.co.uk/ - Coupe Events


Posted By: rattusM3
Date Posted: 10-October-2005 at 03:54

Yep, nice to meet you james and thanks for the comment on the cars.

It was good to talk and to get some valuable pointers regarding 6 series ownership, like you said a bit of work needed on my M6 to get it even close to your example but that is what winters are for.

I am sure you all know this from the meets but Jame's car is a credit to the series and he has not finished with it yet - makes a great M6 alternative with all that Loooow down torque. Good luck with the final engine project, it will be nice to see the results.

Kevin


-------------
E28 Alpina B9
E28 M535i (now a donor for B9)
E24 M6 (work has started to get back up to scratch)
E30 M3 (New Engine (almost), Cams, Brakes, ECU, Suspension, Alpha-N - Thanks Stannard Motors)
E39 530i Touring - Now Sold, sob, sob
E39 523i Touring



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