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D2 - Engine Bay Everything under the bonnet

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  #1  
Old 13th December 2022, 07:31 PM
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Quote:
Originally Posted by MikkiJayne View Post
You can just see the pipe on the right hand side.
Brilliant. Time to get my big coat on again.

EDIT: So much easier when you know what you're looking for. Now leaving it until tomorrow when I can have another look around.
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds

Last edited by steamship; 13th December 2022 at 07:50 PM.
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  #2  
Old 13th December 2022, 08:17 PM
HPsauce HPsauce is offline
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Stupid question time: Same on a 3.7 AKC?
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  #3  
Old 14th December 2022, 09:49 AM
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Originally Posted by HPsauce View Post
Stupid question time: Same on a 3.7 AKC?
Yes is the answer. As MJ said, the illustration in post #2 is very misleading. With the picture in post #6 it was a quick dash outside, look in the area, and it's blindingly obvious.

So far, I haven't been outside yet today. Leaving it to this afternoon when it's due to reach a balmy 2 degrees.
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds
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Old 14th December 2022, 04:25 PM
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A little update. Left it to this afternoon to look at the car, but had an old heater placed underneath the engine just to try and heat it up. Turns out the drain pipe that MJ referred to was partly filled with rusty muck, which I cleaned out. I put a litre or two of antifreeze in the expansion tank and left it for a good while. When I came back to it, it was pure antifreeze dripping out, the rest of it having already come out into a basin along with a little muck. Plugged the drain and refitted the two radiator pipes.

Poured in about 3-4 litres of antifreeze and heard it coming out again. It's still at the junction of pipes 9 and 11. I felt around the metal pipe with my bare hand this time and noticed what I would call a dimple. Now, looking at a picture of the pipe itself, there are two small metal studs near the right end of the pipe. As best as I can make out from feeling it, I'd say that the lower one is definitely missing and this might be where the coolant is escaping from.

I'll jack up the drivers side tomorrow so I can get a better view of it from below.

EDIT: Forgot to ask. If this is the cause, could I get a pipe made up, or is there something about how it is shaped in places, as it isn't that tight a space.
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds

Last edited by steamship; 14th December 2022 at 04:29 PM. Reason: Question for MJ
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  #5  
Old 14th December 2022, 04:54 PM
MikkiJayne MikkiJayne is offline
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Interesting failure. I've not seen that happen before. The pipe is a bit complicated to fabricate as it does have a few odd angles, but I have powdercoated items on the shelf as they always look pretty scruffy when I do engine bay refurbs so I can courier one to you if you need it. It may be possible to weld up the hole in yours of course - depends how crusty it is inside.
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Old 14th December 2022, 09:07 PM
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It will now probably be the weekend before I get another look at it, as I've managed to arrange a lift for the next couple of days down to my brothers to help out.

From the illustration, it looks easy to remove, so may do that so I can have a decent examination.

EDIT: Another question. Would it be worth getting an entire coolant flush done since it's now empty and I'll be filling it with fresh antifreeze? If so, any recommended products?
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds

Last edited by steamship; 14th December 2022 at 09:13 PM. Reason: Question for MJ
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Old 17th December 2022, 12:21 PM
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Managed to remove as much stuff as possible to get access to the pipe, but now waiting on some hose clip pliers... especially for the back one.

As to the pipe itself, the little stud that I mentioned is still there, but there's a hole next to it. That's the dimple I felt with my finger. Not very obvious from the still image, but the video shows it better.

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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds
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  #8  
Old 22nd May 2023, 01:57 PM
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Quote:
Originally Posted by MikkiJayne View Post
Interesting failure. I've not seen that happen before.
And now you've seen it twice
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Old 22nd May 2023, 02:34 PM
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Quote:
Originally Posted by sarg View Post
EDIT I too have a hole in my pipe BMW is coming to another meet by the looks of things
Have you managed to remove the pipe, and if so, what size hole are we talking about?

Quote:
Originally Posted by sarg View Post
And now you've seen it twice
It must be like buses. You never see one, and then all of a sudden...
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds
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