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Auto Trans warning light.....AGAIN!
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Auto Trans warning light.....AGAIN!
The 'sensor' is really a switch on the side of the gearbox. Passenger side UK driver's side where people drive on the wrong side f the road.....LOL.. It's a large sealed switch connected to the gear selector with a cable and it detects the position of the lever P,D,N or R. If it can't determine which position it is in then the ECU shows a fault.
Ours has started again just as the weather has been warming up which could mean that the selector cable isn't adjusted perfectly and .while it was making correct contact in the cold a bit of expansion causes it to lose contact.....possibly... Could also be the large multi-pin connector is dirty again of course.
Ours has started again just as the weather has been warming up which could mean that the selector cable isn't adjusted perfectly and .while it was making correct contact in the cold a bit of expansion causes it to lose contact.....possibly... Could also be the large multi-pin connector is dirty again of course.
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Auto Trans warning light.....AGAIN!
Apologies for resurrecting such an old thread...
We've got the same issue on our 2004 3.0i - warning light almost invariably illuminates on start-up if starting in park. Putting the car into neutral before starting usually avoids the problem.
Local garage (Jaguar/BMW/Mercedes etc. specialist) has plugged the car in and diagnosed a position sensor fault. Contacts have been cleaned and a new battery fitted, but to no avail.
Is it now time to bite the bullet and buy a new position sensor? The idea of paying c£300 for a switch raises my hackles a bit, but not sure what else could be done!
We've got the same issue on our 2004 3.0i - warning light almost invariably illuminates on start-up if starting in park. Putting the car into neutral before starting usually avoids the problem.
Local garage (Jaguar/BMW/Mercedes etc. specialist) has plugged the car in and diagnosed a position sensor fault. Contacts have been cleaned and a new battery fitted, but to no avail.
Is it now time to bite the bullet and buy a new position sensor? The idea of paying c£300 for a switch raises my hackles a bit, but not sure what else could be done!
- Sticks
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Auto Trans warning light.....AGAIN!
Have you used the car much lately? I forgot I'd had this issue until you posted (a long time ago) and it went away and didn't come back with more use.
3.0 SE Auto, Sapphire Black, Elipsoids, Xenons, Sat Nav, BT, Cruise, MFSW, 6CD, non-rfts.
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Auto Trans warning light.....AGAIN!
Interesting question - bought the car abut 6 weeks ago and have used it at least a couple of times a week since then, but it had had minimal use by its previous owner for a number of years - perhaps the issue will go away over time (I can hope...)?
- Sticks
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Auto Trans warning light.....AGAIN!
I hope so. I don't use my car much but when I do I make sure I use all the transmission functions whenever I can.daimler3996 wrote: ↑Thu May 20, 2021 4:49 pmInteresting question - bought the car abut 6 weeks ago and have used it at least a couple of times a week since then, but it had had minimal use by its previous owner for a number of years - perhaps the issue will go away over time (I can hope...)?
3.0 SE Auto, Sapphire Black, Elipsoids, Xenons, Sat Nav, BT, Cruise, MFSW, 6CD, non-rfts.
- Rockhopper
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Auto Trans warning light.....AGAIN!
The part is about £180 plus vat.
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Auto Trans warning light.....AGAIN!
Not quite as bad as I thought in that case. I'll probably bite the bullet when I get fed up having to start it in neutral...
- Rockhopper
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Auto Trans warning light.....AGAIN!
It won’t get better on its own, it’ll only get worse until it strands you in the middle of nowhere
- DMike
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Auto Trans warning light.....AGAIN!
I second that. My 2005 3.0i had this issue, first sporadically and finally, after a couple of years, every second time the car was started. I had developed a routine to start in neutral but finally had the switch changed to get rid of the annoyance.
2005 Z4 3.0i Sterling grey
- Rockhopper
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Auto Trans warning light.....AGAIN!
I had mine changed just last week - maybe its the placebo effect but the box feels much nicer now.
- bigwinn
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Auto Trans warning light.....AGAIN!
Hi mateRockhopper wrote: ↑Fri May 21, 2021 9:11 am I had mine changed just last week - maybe its the placebo effect but the box feels much nicer now.
I’m going to clean my switch soon to remedy a recurring light- how much was a replacement switch?
DIY replacement or Indy?
If the forum helped you, why not help the forum back. Thats the Z4 way!
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Auto Trans warning light.....AGAIN!
My light has started coming on. Did you get a part number and price for this switch?bigwinn wrote: ↑Mon Nov 08, 2021 9:58 pmHi mateRockhopper wrote: ↑Fri May 21, 2021 9:11 am I had mine changed just last week - maybe its the placebo effect but the box feels much nicer now.
I’m going to clean my switch soon to remedy a recurring light- how much was a replacement switch?
DIY replacement or Indy?
- bigwinn
- Lifer
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Auto Trans warning light.....AGAIN!
No I just undid mine and cleaned it- not sure if it fixed the issue long term as the car was sold shortly after but it didnt recurr
Stuart
Stuart
If the forum helped you, why not help the forum back. Thats the Z4 way!
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Auto Trans warning light.....AGAIN!
Mine used to happen all the time and a new battery sorted it. I've recently got a new battery so I know it's not that this time.
If the light is on and I shift it judders the whole car going from park into reverse same for going from neutral into drive.
However if there is no light it's fine. I'll get my mechanic to have a look at it when he's doing the transmission fluid kill two birds with 1 stone
- Rockhopper
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Auto Trans warning light.....AGAIN!
Like I said, get it changed. It’ll only worsen and eventually leave you stranded.