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Karlp606



Member Since: 25 Jun 2022
Location: East Yorks
Posts: 294

ACE Leak passenger side ... Hot Weather?

Hey guys,

Got the red triangle suspension lean fault yday and then today found the fluid under the passenger door area. Cars been stood for a few days in near 30c heat - just checking if there is access to a not a connection that could need nipping up, not sure if the heat has made something expand and now needs possibly nipping up. I ran my diagnostic and got the C1119 hydraulic pressure fault , due to the leaking fluid.

Any help as always will be much appreciated.

Post #648603 Sun Jun 29 2025 10:48am
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Disco_Mikey



Member Since: 08 Apr 2012
Location: Dundee, Scotland
Posts: 4496

United Kingdom 2010 Range Rover Sport Supercharged HSE Santorini Black

Nope. It'll be rotten pipes...

Post #648604 Sun Jun 29 2025 11:34am
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Karlp606



Member Since: 25 Jun 2022
Location: East Yorks
Posts: 294

Urgh! Hoping you wasn’t going to say that Mikey lol
It seems to be about 6 inches back from the passenger front wheel where the leak is.
I’ve taken off the underside plastic pop rivets but presume there’s the harder plastic cover to take off as well that’s on the nuts and that reveals the pipe?

Post #648605 Sun Jun 29 2025 12:29pm
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Disco_Mikey



Member Since: 08 Apr 2012
Location: Dundee, Scotland
Posts: 4496

United Kingdom 2010 Range Rover Sport Supercharged HSE Santorini Black

If you take the 10mm bolts out the inside edge of the panel and pull it down, you should see where it's coming from

Make sure you have a rag to hand so you don't get dripped on Whistle Thumbs Up

EDIT: I've assumed it's coming from under the cover. The NS pipe does corroded and leak, then run down the pipework to behind the wheel area...

Post #648606 Sun Jun 29 2025 1:01pm
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Karlp606



Member Since: 25 Jun 2022
Location: East Yorks
Posts: 294

Yes it’s dripping through one of the plastic pop rivets on the plastic sill about 6 inches back from the wheel arch.
Ah thanks so 2 bolts on the inside wheel arch , after taking the plastic sill cover off and look down - I’ll check the pipes and if I can see the source.
Thanks Mikey

Post #648608 Sun Jun 29 2025 1:29pm
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Karlp606



Member Since: 25 Jun 2022
Location: East Yorks
Posts: 294

Just checking, is the valve block/pump on the passenger side about 6 inches back where all the pipes feed into??

Just watched LR time video and you can see here everything feeds in about a 1:00 into the video -

Post #648610 Sun Jun 29 2025 1:43pm
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Karlp606



Member Since: 25 Jun 2022
Location: East Yorks
Posts: 294

Photos - I seem to have 3 drips -







Something further up?

Post #648611 Sun Jun 29 2025 1:58pm
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Disco_Mikey



Member Since: 08 Apr 2012
Location: Dundee, Scotland
Posts: 4496

United Kingdom 2010 Range Rover Sport Supercharged HSE Santorini Black

Yes, that's about where the valve block is. Look for wet and rusty pipes

Post #648613 Sun Jun 29 2025 4:19pm
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Karlp606



Member Since: 25 Jun 2022
Location: East Yorks
Posts: 294

Thanks Mikey - gonna check it on my friends ramps on Tuesday hopefully.

Are the pipes more likely to corrode going into the block so you need to check the seals from the pipe going to the block? Or replacement seals etc

Post #648614 Sun Jun 29 2025 6:09pm
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Disco_Mikey



Member Since: 08 Apr 2012
Location: Dundee, Scotland
Posts: 4496

United Kingdom 2010 Range Rover Sport Supercharged HSE Santorini Black

Thankfully, the L494 valve blocks do not suffer from corrosion in the same way the L320 does Thumbs Up

Usually, you get away with just replacing the pipes. If the seals do come out when you remove the pipes, they can be replaced easily

Post #648615 Sun Jun 29 2025 6:34pm
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Karlp606



Member Since: 25 Jun 2022
Location: East Yorks
Posts: 294

Got to the pipe and pretty conclusive!



Found a replacement pipe guy on eBay - has made replacement pipes for each of the 4 pipes using new hydraulic pipe , his done a tutorial how to replace each pipe also. £160 with delivery for replacement pipe and fittings (incl new block seals etc)

Will let you know how I get on when it arrives and I fit it.

Post #648632 Mon Jun 30 2025 9:30pm
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Disco_Mikey



Member Since: 08 Apr 2012
Location: Dundee, Scotland
Posts: 4496

United Kingdom 2010 Range Rover Sport Supercharged HSE Santorini Black

What condition are the rest of the pipes in? Usually replacing a single section is false economy...

Post #648634 Tue Jul 01 2025 7:18am
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Karlp606



Member Since: 25 Jun 2022
Location: East Yorks
Posts: 294

The other pipes were pretty clean and not corroded like the leaking one, after I cleaned them up.

I was thinking when I replace the pipe to spray them in a metal fence paint , give them some extra protection , hammerite or something similar.

You can see it’s a very bad design fault as the pipes should be in a dry free almost air tight box - the amount of grit and gravel collected in my sill was awful, no wonder the pipes easily rot.

Post #648639 Tue Jul 01 2025 10:12am
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Meiang



Member Since: 29 Apr 2011
Location: Perth
Posts: 406

Australia 2010 Range Rover Sport TDV8 HSE Santorini Black

I'm just glad that I live in an environment where it doesn't rain very much and corrosion is not a problem. After 15 years, I don't have a spot of corrosion on anything, even the bolts underneath are rust free.
I get the feeling that Landrovers are not designed for wet climates, only for warm climates where it doesn't rain very much.

I will admit the plastics used don't like the sun very much. The external plastic trim on my Honda is like new after 20 years.

Post #648687 Thu Jul 03 2025 4:33pm
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Col



Member Since: 02 Sep 2012
Location: Hawkes Bay NZ
Posts: 5085

New Zealand 2013 Range Rover Sport Supercharged Autobiography Santorini Black

I inclined to think the major cause of corrosion with the pipes etc. is actually the salt used on UK roads during the winter months more than just a wet climate, they don't salt the roads here either so very little rust on my old L320 over and above what was there previous to shipping it here from the UK at three years old.

Cheers
Col

Post #648689 Thu Jul 03 2025 9:28pm
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