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Home > Faults & Fixes (L663) > Coolant leak

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ehl

Member Since: 19 Jul 2021
Location: valencia
Posts: 4

Coolant leak

Hi everyone, I own a Defender 110 D200 SE MY 22. The car has been delivered to me in February 2022 and now has 15.000kms on it. Couple of days ago I happened to check first time since new the coolant level and curiously the level was 1 cm. below the minimum line on the reservoir. The car has never given a low coolant level warning on the display and the temperature has never exceeded the middle on the gauge. LR service recommended me to top the coolant with distilled water
up to max level on the reservoir while the engine is cold. I followed their instructions and did so.
Afterward I took the car for a 600km trip and when I arrived and the engine has cooled down completely, I checked once again the level. But this time the level was couple of millimeters below the max level. So do you think this is enough evidence to think that there is a tiny little leak in the system?
Has anyone else experienced any leak or had to top the coolant at any time? Thanks

4th Dec 2022 4:57pm

Tim in Scotland

Member Since: 23 May 2007
Location: The Land that time forgot
Posts: 3753

Plenty of reports of disappearing coolant but on the P400’s not diesels - it is a known issue so worth pressing your dealer for a fix under warranty Pangea Green D250 90 HSE with Air Suspension, Off-road Pack, Towing Pack, Black Contrast roof , rear recovery eyes, Front bash plate, Classic flaps all round, extended wheel arch kit and a few bits from PowerfulUK Expel Clear Gloss PPF to come
2020 D240 1st Edition in Pangea Green with Acorn interior. Now gone - old faithful, no mechanical issues whatsoever ever but the leaks and rattles all over the place won’t be missed!

4th Dec 2022 8:59pm

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2826

Monitor it and see if it drops any further, don't top up the coolant

6th Dec 2022 8:06pm

zilch

Member Since: 11 Sep 2019
Location: Whitsundays & Sydney
Posts: 820

We had to have a new coolant expansion tank fitted on ours, not just because of a faulty sensor
reading, but also a slight leak via the sensor itself, very small and only really spotted due to the coolant
leaving white dots when it hit the radiator fan cover area and dried.. It was leaking about
A teaspoon worth every week(ish) .. but no obvious puddles anywhere.. yet another pommie bar steward down under

MY20 110 P400 SE Defender
MY10 3.0 RR Sport

7th Dec 2022 8:16am

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