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FleXzoR



Member Since: 28 Jan 2013
Location: Bruges
Posts: 44

Belgium 2016 Range Rover Autobiography SDV8 Santorini Black
L405 sdv8 coolant leak

Hello,

I started working on my 2015 AB lwb 4.4sdv8 today, around 200k kms.
I have a coolant leak where the coolant is dripping from the bellhousing on the skidplates underneath the vehicle.

For some weeks i was already topping up the coolant regularly as i had time constraints to start working on the engine.

By pressurising the coolant system and having removed the intake manifold, i quickly diagnosed the bottom thermostat housing to be yet the first culprit.

Now, can someone point me to other possible/very common leak points so i can change/repair them while I'm yet in this phase rather then having to open everything again next year...

Something i have noticed, very few times, was a slight oil/burned diesel smell in the cabin.

I will be replacing the coolant pump already (bought new already).

Thanks for your help! MY2008 Buckingham Blue Supercharged - gone
MY2016 Santorini Black 4.4 SDV8 LWB AB

Post #682831 15th Jan 2024 9:56pm
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Dolphinboy



Member Since: 07 Dec 2009
Location: Bristol
Posts: 3136

United Kingdom 2011 Range Rover Vogue TDV8 Atacama Sand

EGR cooler

Post #682836 15th Jan 2024 10:37pm
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GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2471

Australia 2012 Range Rover Autobiography TDV8 Bournville

Both sections of the thermostat housing, not just the leaking section, and all coolant hoses and fittings in the V.

Post #682839 16th Jan 2024 3:22am
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FleXzoR



Member Since: 28 Jan 2013
Location: Bruges
Posts: 44

Belgium 2016 Range Rover Autobiography SDV8 Santorini Black

Hi,

Thanks. What connections on the egr cooler? Just the water connections? MY2008 Buckingham Blue Supercharged - gone
MY2016 Santorini Black 4.4 SDV8 LWB AB

Post #682902 16th Jan 2024 5:23pm
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ChrisJC



Member Since: 14 Sep 2023
Location: Northants
Posts: 113

United Kingdom 2014 Range Rover Vogue SDV8 Aintree Green

I have changed both heater hoses and the little manifold assembly that they connect to.

Chris. L405 - 4.4SDV8 Vogue
P38 - 4.6V8 HSE
Land Rover series IIA V8

Post #682914 16th Jan 2024 6:25pm
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