Gearbox temperature warning light

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rlangley643

New Member
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5
Right got a rather annoying problem at the moment.
Whenever i drive the car (discovery 2 td5 manual), the transmission oil temperature light comes on, flickers a bit, then goes off.
this wil repeat for most of the journy.
when i hit a motorway it'll stay off 99.9% of the time, its mainly arround town that it does it.
I've changed the gearbox oil twice, changed the diff oils, changed the transfer box oil.
kinda getting annoyed by it now.
anyone have any ideas what it is and how to fix it?!?! :confused:
 
Amazed that you haven't checked the sensor or it's wiring.
I'm not a Disco man but most of these sensors are just thermal switches running to earth when triggered.
 
Right got a rather annoying problem at the moment.
Whenever i drive the car (discovery 2 td5 manual), the transmission oil temperature light comes on, flickers a bit, then goes off.
this wil repeat for most of the journy.
when i hit a motorway it'll stay off 99.9% of the time, its mainly arround town that it does it.
I've changed the gearbox oil twice, changed the diff oils, changed the transfer box oil.
kinda getting annoyed by it now.
anyone have any ideas what it is and how to fix it?!?! :confused:


You say your car is a manual gearbox model? Well I didn't think they had a transmission oil temperature light? That's normally only for autos.

Are you absolutely sure that the light coming on intermittently, is in fact the transmission oil light?

Dave
 
You say your car is a manual gearbox model? Well I didn't think they had a transmission oil temperature light? That's normally only for autos.

Are you absolutely sure that the light coming on intermittently, is in fact the transmission oil light?

Dave

some t/boxes do ,and wiring is often lying around on top of box,
 
+1^^^ the hanging wires could make tricks there cos afaik only V8 NAS specs have a sensor in the transfer box...anyway it's just an annoying visual issue on a manual Td5, would not affect functionality
 
yeah its definately the transmission temp warning light (according to the manual anyway).
i've not checked the wiring as did some reasearch online and like thebiglad said, didnt think they had one.
but the transfer box, didnt think about that.
will have to check it when i get in today.
 
see attachment and chase a black/light green wire to not touch earth, if by some odd reason you have the switch there unplug it and insulate the wire
 

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