The overdrive on my 2000 Mk2 saloon started playing up, by switching in and out when turned on.
Firstly I checked the gear knob switch, which had both voltage feed and continuity when turned on. I then suspected low gearbox oil, so changed that for fresh. No change.
I then suspected the 3rd/4th limiter switch, but apart from knowing that it is on the top of the gearbox, was unsure how to check. I removed the leather gaiter and console infill, and followed the twin cable. Low and behold there was a join in one of the wires, so I used my 'twiddle it and see what happens' joint testing technique. Sure enough the wire parted. Quick join repair and all is working well.
I just wonder why a PO had felt the need to break and join the cable though........
Overdrive issue sorted.
Re: Overdrive issue sorted.
Glad you found it so easily. P/O's do strange things.
You may now come to New Zealand and find out why mine won't engage when hot.
Think it's the solenoid O rings. Will find out when I get some new one's.
I understand oversize one's are available. Anyone know?
Tony.
You may now come to New Zealand and find out why mine won't engage when hot.
Think it's the solenoid O rings. Will find out when I get some new one's.
I understand oversize one's are available. Anyone know?
Tony.
1976 2500 TC. converted to S specs.
Lots of bits
1999 BMW Z3.
2006 BMW 325ti.
Hopefully not needing too many bits.
.
Lots of bits
1999 BMW Z3.
2006 BMW 325ti.
Hopefully not needing too many bits.
.
Re: Overdrive issue sorted.
I didn't know that oversize O rings for the solenoid existed but if looking for them I would contact the two specialist o/d companies in the UK (one is in Sheffield).tony wrote:Glad you found it so easily. P/O's do strange things.
You may now come to New Zealand and find out why mine won't engage when hot.
Think it's the solenoid O rings. Will find out when I get some new one's.
I understand oversize one's are available. Anyone know?
Tony.
On the only non-engaging o/d box when hot that I have encountered was rectified by draining the oil,
cleaning as much crud out without removal of o/d from gearbox, changing the filters within and then re-filling with specification oil (EP80?).
Kev
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Re: Overdrive issue sorted.
if its a J type there is inside the end of the solenoid a small 10mm circlip, this when removed releases the spool inside , this is the bit that sticks , most O rings seal the outer body
you need a 1"AF thin wall spanner to undo the sol. dont wrench it off with grips on the body you can wreck it easily.
give it a good shake you should hear the inner plunger clatter back and forth, if not its stuck a good clean solves the sticking.
this can cause all sorts of involuntary engage disengage problems
Pete
you need a 1"AF thin wall spanner to undo the sol. dont wrench it off with grips on the body you can wreck it easily.
give it a good shake you should hear the inner plunger clatter back and forth, if not its stuck a good clean solves the sticking.
this can cause all sorts of involuntary engage disengage problems
Pete
Pete Lewis
Luton
also area organiser for herts and beds tssc.
Luton
also area organiser for herts and beds tssc.
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