Td5 temperature gauge

M

matt101

Member

Posts

77

Location

Bristol

• Dec 15, 2018

• #1

hi guys,
Iv finally taken the plunge and brought myself a 2004 td5 disco after 6yrs owning a disco 1.
I have a few issues but for now I'm just after some confirmation.
The temperature gauge goes up to normal whilst driving, on idle however it will slowly drop to halfway between cold and normal, am I right to believe I have a dodgy thermostat?
Thanks,
Matt

 

dieseldog69

Well-Known Member

LZIR Despatch Agent

Posts

9,105

Location

Roaming the UK on assignments

• Dec 15, 2018

• #2

matt101 said:

hi guys,
Iv finally taken the plunge and brought myself a 2004 td5 disco after 6yrs owning a disco 1.
I have a few issues but for now I'm just after some confirmation.
The temperature gauge goes up to normal whilst driving, on idle however it will slowly drop to halfway between cold and normal, am I right to believe I have a dodgy thermostat?
Thanks,
Matt

Click to expand...

Maybe, it's worth changing for peace of mind.

 

neilly

Well-Known Member

Posts

20,000

Location

Oxfordshireness

• Dec 15, 2018

• #3

If you are changing the thermostat , get yourself a pair of the clip pliers needed, makes life a lot easier.

Oh, and do not forget your EKA code..LOL

Cheers

 

F

Flatfour

Member

Posts

13

Location

Sussex

• Dec 15, 2018

• #4

Might well be a dodgy thermostat but could also be a siezed viscous fan which is running at full pelt all the time.

 

M

matt101

Member

Posts

77

Location

Bristol

• Dec 15, 2018

• #5

Thanks,
Will get a thermostat ordered and go from there.

 

raywin

Well-Known Member

Posts

3,808

Location

North Yorkshire

• Dec 15, 2018

• #6

Flatfour said:

Might well be a dodgy thermostat but could also be a siezed viscous fan which is running at full pelt all the time.

Click to expand...

That could be a valid point if the engine reaches temperature when idleing then cools down when you are traveling, engie revs would be much higher and the fan would move much more air.

 

sierrafery

Well-Known Member

Posts

17,871

Location

Arad/Romania

• Dec 15, 2018

• #7

It could be air in the system if it wasnt filled and bled as in the book by raising the tank above the bleed hole etc. and as at idle the pump is spinning slower the coolant can't reach the sensor and it takes only the air's temp which is not as hot as the coolant... i'd bleed it well first