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Home > Maintenance & Mods (L322) > Heater Matrix to rear pipe (8K520) question

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24valve

Member Since: 07 Apr 2009
Location: Cornwall
Posts: 162

2010 Range Rover Autobiography Black TDV8 Santorini Black

Heater Matrix to rear pipe (8K520) question

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Hi,

My (new to me) 4.4tdv8 autobiography black has pipes that go from the heater matrix above the gearbox to the rear heating. I dont know if all l322's of this era have them, but after chasing a coolant leak, I've found the top of one of these aluminium hoses has a pinhole leak in it. I know its coolant and after presurising the system and seeing it p!ssing out above the gearbox and the sound deadening becoming waterlogged, I ventured underneath, took the sheilds off and got a nice antifreeze cocktail.

anyway, I've identified the part on microcat (8K520) in the diagram, but I cant seem to find a supplier. Does anyone know anywhere I can get hold of one? - or is it best to phone the dealer.

Also has anyone changed one before, or if a replacement pipe is hard to get, is there anything that would repair an aluminium pipe?

Cheers

Neil.

2010 L322 Autobiography Black Edition
1975 Land Rover

23rd Jan 2023 5:14pm

Gsxr1250dave

Member Since: 20 Oct 2018
Location: London
Posts: 880

You could repair it with chemical metal I'm sure.

23rd Jan 2023 6:03pm

rjff

Member Since: 28 Oct 2017
Location: Cambridgeshire
Posts: 1196

2011 Range Rover Vogue TDV8 Santorini Black

I believe the price for the part if available is in the "you'd better be sitting down" territory.

Recall a thread somwhere that had the owner replacing the corroded sections with good quality rubber/suitable pressure hose.

Hope my memory is still correct. Cheers
Richard

(there are no such things as an ordinary FullFat, an ordinary cat or too many tools)
2011 TDV8 Vogue Santorini Black
Gap IIDBT

23rd Jan 2023 7:46pm

24valve

Member Since: 07 Apr 2009
Location: Cornwall
Posts: 162

Would Chemical metal be able to handle the hot and cold/water pressure and all that? 2010 L322 Autobiography Black Edition
1975 Land Rover

23rd Jan 2023 7:48pm

Gsxr1250dave

Member Since: 20 Oct 2018
Location: London
Posts: 880

Look up the specs and decide for your self, if in doubt seek from a breakers as the new pipe it expensive or as mentioned replace with hose.

23rd Jan 2023 8:05pm

24valve

Member Since: 07 Apr 2009
Location: Cornwall
Posts: 162

hmm. I think the part number is actually PFV500270 - which is about 135 quid plus the dreaded. Not as bad as I thought tbh. It looks like a bit of a pig of a job to do, so I'd rather only do it once! 2010 L322 Autobiography Black Edition
1975 Land Rover

23rd Jan 2023 8:06pm

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