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alfapat



Member Since: 09 Apr 2017
Location: Elgin
Posts: 349

Scotland 2004 Range Rover Vogue Td6 Bonatti Grey
Coolant Level fault.

This Topic has been covered before and I have done a lot of searching , so please go easy.
Does the expansion tank (a black one on TD6) have a replaceable tank sensor or is repairable by washing the tank, there are many thoughts on the latter suggestions , but all seem to be on clear tanks . The indicator is at the top of its float and showing low in the warning cluster.

Post #560498 7th Jul 2020 1:23pm
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vs322



Member Since: 08 Apr 2020
Location: Athens
Posts: 527

Greece 2004 Range Rover HSE 4.4 V8 Java Black

Yes, it has.

It's a reed switch which plugs in at the bottom of the expansion tank.

https://www.fullfatrr.com/forum/post211489.html

Easy 1 minute job and you don't even need to remove the tank.

Post #560543 7th Jul 2020 7:33pm
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Joe90



Member Since: 29 Apr 2010
Location: Hampshire
Posts: 6397

England 

I would just replace the expansion tank, complete with new sensor. The "sight glass" inside the tank gets clouded up which means the sensor can't do its thing, just fitting a new sensor may not work. .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember Wink
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Post #560553 7th Jul 2020 8:19pm
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JohnGalt11



Member Since: 31 Mar 2020
Location: Iowa
Posts: 27

United States 2009 Range Rover Supercharged Supercharged Santorini Black

Keep in mind that "coolant level low" doesn't always mean that the liquid isn't up to the mark. The sensor measures the concentration of the coolant as well and if it isn't between 40-60% concentration the sensor will read that the level is low. Try adding some undiluted coolant and see if that helps. Just make sure you are adding the exact same type of coolant as mixing different types can be bad. 2009 L322 SC

Post #560557 7th Jul 2020 8:43pm
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alfapat



Member Since: 09 Apr 2017
Location: Elgin
Posts: 349

Scotland 2004 Range Rover Vogue Td6 Bonatti Grey

Many thanks guys I’ll try a clean then , and see what happens.

Must say I have added pure coolant , but wouldn’t know what was in before. I’ll clearfsjlt and test SG independently.

Post #560569 7th Jul 2020 9:58pm
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bgennette



Member Since: 13 Jan 2013
Location: Newcastle
Posts: 73

Australia 2003 Range Rover HSE Td6 Java Black

The sensor is fitted like a bayonet light globe.
Reach under the tank, twist the sensor housing a quarter turn, lower and remove. Unplug from cable.

The reed switch in the sensor is worked by a magnet on the tank float. Test the sensor with a multimeter on continuity setting by moving a (fridge) magnet towards and away from it.

The windscreen washer tank has an identical sensor, but it is a little harder to remove because of the plastic underskirt in front of the left wheel arch. A simple swap makes a temporary repair.

bye. 2003 TD6, EGR delete, vortex crankcase breather update, performance chip, UHF 2 way, Android head unit, crash camera on dash, always-on rear view camera to mirror screen, LED DRL`s, Electric trailer brake controller. FSR replaced. Pulling 3T caravan all about Australia

Post #560576 8th Jul 2020 12:43am
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