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Lot of work but once it’s done it should last longer than o rings
P38A Heater matrix o-ring replacement guide
- Thread starter Stufer
- Start date
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- Isle Sheppy
Hi Brian ordered some bits of that joint pipe but looking at it now could you not just run the two pipes straight through the bulkhead to the engine bay cheers for advice
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- 19,297
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- Buckinghamshire, UK. ('95 DT)
That's what we did. Some washing up liquid on the grommet through the bulkhead and one person pushing with the other pulling.
brianp38dse
Well-Known Member
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The two brass connectors go in the engine bay and as Grrrrrr said push pull the hoses through, i think i would do that end first then connect up the matrix
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- Isle Sheppy
Cheers for advice
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- Isle Sheppy
The 2 existing metal pipes are done away with then because they seem to be a mare to remove
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- 19,297
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- Buckinghamshire, UK. ('95 DT)
Nah, by the time you have it all apart they just pull out.
V8vrrr
Member
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- United Kingdom
Stufer, thanks for the guide.
I’m to tackle this issue soon. Is there any quicker way of confirming the leak is coming from the O Ring that doesn’t require me dismantling the steering wheel?
Also, since I’m taking off the steering wheel, am I able to follow the DIY guide of replacing the blend motors? I’d rather tackle both jobs at once.
I’m to tackle this issue soon. Is there any quicker way of confirming the leak is coming from the O Ring that doesn’t require me dismantling the steering wheel?
Also, since I’m taking off the steering wheel, am I able to follow the DIY guide of replacing the blend motors? I’d rather tackle both jobs at once.
Datatek
Well-Known Member
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No need to remove the steering wheel to do the heater matrix O rings or the blend motors although I found it a tad more difficult on LHD.
- Posts
- 19,297
- Location
- Buckinghamshire, UK. ('95 DT)
I guess you could get a little endoscope off eBay and poke around or maybe a bit of bog paper on the end of a piece of wire and poke that about. The windscreen trim can leak and the pollen filter boxes but that won't contain antifreeze. The only coolant in the car will be from the infamous o-rinhs or the heater matrix itself giving up the ghost.
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- 4,653
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- Rotherham
I just slid some kitchen towel under the triangular piece and ran the engine . It later came out wet and pink showing in my case the heater matrix
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- 3,878
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- Near Heathrow.
Personally I don't agree with all this cutting bits. Better to take the dash out & do the job properly. It's also easier to fix any blend motor issues & sort all the leaky ductwork as well.
Datatek
Well-Known Member
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- Near Poitiers SW France
Only one duct cut required and it's a darn site easier and quicker than removing the dash.
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+1 on that. Even I found it an easy job
V8vrrr
Member
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- United Kingdom
Created a new thread to discuss my leak - https://www.landyzone.co.uk/land-rover/coolant-leak.384618/
Last edited:
Is Stufer's guide also useable for the LHD version you think? I'm going to do this job very soon.
Datatek
Well-Known Member
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- 44,887
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- Near Poitiers SW France
Never seen Stufer's guide. There is a bit more room to work on the LHD but I seem to remember a bracket that made access harder. If the screw comes out without a battle, it's an easy job. Best to fit a socket head screw when reassembling with a good coating of copper slip on the thread..
Thanks!
I'll try to update here with some pics and adaptions to Stufer's guide for future reference.
I wonder if Audi ever wonder why they are selling so many heater cores? They may think it's a dodgy design they have.
