Seabazz2008

Member

• May 6, 2021

• #1

I have a discovery 3, 2006, 2.7 hse, and I keep getting a low coolant warning, and yet the coolant in the expansion bottle is at the correct level, and the engine shows no sign of overheating. Anyone got any ideas as to what the fault might be.???

 

backinblack

Well-Known Member

Full Member

• May 6, 2021

• #2

The L322 monitors the amount of antifreeze in the coolant also, maybe the Disco 3 does the same?

 

Seabazz2008

Member

• May 6, 2021

• #3

backinblack said:

The L322 monitors the amount of antifreeze in the coolant also, maybe the Disco 3 does the same?

Click to expand...

 

Seabazz2008

Member

• May 6, 2021

• #4

Thanks ,never knew that, I will make some inquiries.

 

kermit_rr

Very

Full Member

• May 6, 2021

• #5

backinblack said:

The L322 monitors the amount of antifreeze in the coolant

Click to expand...

this is new to me! do you have any clue how it works? guessing some kind of refractometer

 

T

tilly2

Well-Known Member

• May 6, 2021

• #6

Replace the sensor, a genuine one will only cost you £12.49 plus vat and postage.

https://www.island-4x4.co.uk/sensor-level-coolant-expansion-tank-tdv6-genuine-pcj500030-p-34173.html

 

Nodge68

Well-Known Member

• May 6, 2021

• #7

Seabazz2008 said:

Thanks ,never knew that, I will make some inquiries.

Click to expand...

It just needs a new level sensor, it's a common D3 problem. The sensor element corrodes, preventing it from measuring the level, hence flagging a low warning.

 

L

lynall

Well-Known Member

Full Member

• May 6, 2021

• #8

Needs new header tank, the internal float goes duff, new tank should come with the sensor.

 

backinblack

Well-Known Member

Full Member

• May 6, 2021

• #9

kermit_rr said:

this is new to me! do you have any clue how it works? guessing some kind of refractometer

Click to expand...

There's a float on the level sensor which I think is a hydrometer. I had coolant warning a few times until I increased the anti-freeze concentration. (for L322)

 

Seabazz2008

Member

• May 6, 2021

• #10

Gentlemen thank you for your advice and suggestions. New level sensor ordered...