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NedHan79
Nürburgring


Joined: 08 Nov 2018
Posts: 451



PostPosted: Sat Feb 23, 2019 8:46 pm    Post subject: Mysterious water leak Reply with quote

I was out today shopping for a new 7 seater for the Mrs and took the c2 for a blast. The salesman met us before we even got past the show room to view the stuff in the yard.
When I came back to my car it had pissed out .5-1 litre at a guess of nice rusty looking water. Had a look under and it’s this pipe that’s the culprit, or the best I can see by sticking my head under.

Weird thing is, I haven’t lost the water from the expansion bottle. I know I have a very slight leak to investigate and have been topping it up but very little needed. This pipe is always damp but never a drop on the ground.

I had to drive 10-12 miles after the incident without a fault. Temp gauge sat just over 80 as always.

Any ideas?
 
  
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NedHan79
Nürburgring


Joined: 08 Nov 2018
Posts: 451



PostPosted: Sat Feb 23, 2019 8:53 pm    Post subject: Reply with quote

Just realised I haven’t stuck the picture up. frustrated
 



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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6523
Location: Brighton


PostPosted: Sat Feb 23, 2019 8:54 pm    Post subject: Reply with quote

Where on the car is the leak ? front back etc ?

Coolant lvl wont drop untill the air has reached the coolant tank ... maybe a few miles .

That amount of fluid loss is what i would consider rather large in one hit .
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6523
Location: Brighton


PostPosted: Sat Feb 23, 2019 8:58 pm    Post subject: Reply with quote

Aghh ok ..

Either chop then end off the pipe or replace it .. replace being the best option .

https://www.deroure.com/diagrams.asp?MAK=3&MDL=25&TBL=2526&SMA=&SMO=0&ST=&SC=0

i " think " its no. 41 or 42 here ... might be 27 though ... hard to work out .
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NedHan79
Nürburgring


Joined: 08 Nov 2018
Posts: 451



PostPosted: Sat Feb 23, 2019 9:04 pm    Post subject: Reply with quote

How’s it goin demort?

It’s not the leak so much that worries me, as the lack of drop at the bottle. Probably closer to 1/2 a litre of loss but I was thinking then would there be an air lock.
The temperature gauge never budged, apart from another stop on route to look at another bus,
 
  
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Ghianightmare
Spa-Francorchamps


Joined: 25 Apr 2017
Posts: 279
Location: Dublin


PostPosted: Sun Feb 24, 2019 12:02 am    Post subject: Reply with quote

The coolant tank is much bigger than you think - have a look at MCs recent photo. You only see a small part of the tank when you are looking in the engine bay!

I think - from memory - that to top up the tank from the low level to max level is about 2 liters, so if it dropped half a liter, you mightn’t notice it. Particularly in the area around the bottle seam/lip.
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NedHan79
Nürburgring


Joined: 08 Nov 2018
Posts: 451



PostPosted: Sun Feb 24, 2019 12:06 am    Post subject: Reply with quote

2 litres sounds like a big 1. I know it’s a decent size tank but that sounds a bit much.
Mind you, it might have solved my query
 
  
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Paynewright
Monza


Joined: 17 Apr 2018
Posts: 159
Location: Nr Lutterworth Leics


PostPosted: Sun Feb 24, 2019 9:18 am    Post subject: Reply with quote

If rusty me thinks its due a flush and new coolant!

Ian
 
  
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NedHan79
Nürburgring


Joined: 08 Nov 2018
Posts: 451



PostPosted: Sun Feb 24, 2019 12:26 pm    Post subject: Reply with quote

Yeah Ian. A flush is definitely on the cards. I’ll sort the leak and go from there.
 
  
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NedHan79
Nürburgring


Joined: 08 Nov 2018
Posts: 451



PostPosted: Sun Feb 24, 2019 4:38 pm    Post subject: Reply with quote

Got the car up and had a look. It seems it’s the pipe above that’s leaking and dripping down onto the other. Pipes look to be in decent condition but the clips were rotten. They broke as soon as I touched them. I simply replaced them with dubilee clips. I ran it up to temperature and there’s no sign of the leak now so fingers crossed that’s it
 



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NedHan79
Nürburgring


Joined: 08 Nov 2018
Posts: 451



PostPosted: Sun Feb 24, 2019 4:39 pm    Post subject: Reply with quote

Broken clips
 



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NedHan79
Nürburgring


Joined: 08 Nov 2018
Posts: 451



PostPosted: Sun Feb 24, 2019 4:40 pm    Post subject: Reply with quote

Job done
 



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Paynewright
Monza


Joined: 17 Apr 2018
Posts: 159
Location: Nr Lutterworth Leics


PostPosted: Sun Feb 24, 2019 4:47 pm    Post subject: Reply with quote

I’ve looked at those clamps and wondered about longevity. I’ve been thinking about a coolant refresh and wondered about changing to quality jubilee clips.

What is the concensus on the original clips?

Ian
 
  
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6523
Location: Brighton


PostPosted: Sun Feb 24, 2019 4:57 pm    Post subject: Reply with quote

Stuff me .. you jammy git !!

You cant get a cheaper repair than that Thumb

Ive not seen a clip like that fall appart before .. but they are certainly showing their age these days and i usually replace then when im working on your cars .
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NedHan79
Nürburgring


Joined: 08 Nov 2018
Posts: 451



PostPosted: Sun Feb 24, 2019 5:00 pm    Post subject: Reply with quote

The rest of the clips that I could see weren’t too bad. It’s maybe just that those ones sit quite low and get all the abuse from road grime.
I’d say the rest will definitely need to be checked as I wouldn’t want to be stuck somewhere for the sake of a 20p part.

I’ll make sure there’s no more leaks before I flush it.
My air cons not working, not sure if it’s a regas job or a bit more sinister but I might just rip it out and do without it as I’m more of a windows down type of guy. That should help with the temperatures, not that there’s any issues but no point having something I’d never use
 
  
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NedHan79
Nürburgring


Joined: 08 Nov 2018
Posts: 451



PostPosted: Sun Feb 24, 2019 5:01 pm    Post subject: Reply with quote

deMort wrote:
Stuff me .. you jammy git !!

You cant get a cheaper repair than that Thumb

Ive not seen a clip like that fall appart before .. but they are certainly showing their age these days and i usually replace then when im working on your cars .


That’s how I roll Thumb
 
  
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maldren
Suzuka


Joined: 07 Oct 2016
Posts: 1068



PostPosted: Sun Feb 24, 2019 5:50 pm    Post subject: Reply with quote

NedHan79 wrote:
The rest of the clips that I could see weren’t too bad. It’s maybe just that those ones sit quite low and get all the abuse from road grime.
I’d say the rest will definitely need to be checked as I wouldn’t want to be stuck somewhere for the sake of a 20p part.

I’ll make sure there’s no more leaks before I flush it.
My air cons not working, not sure if it’s a regas job or a bit more sinister but I might just rip it out and do without it as I’m more of a windows down type of guy. That should help with the temperatures, not that there’s any issues but no point having something I’d never use


Get your aircon fixed, you won't want the windows down on the motorway and it will be far too hot without (unless you have a sun roof?)
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2003 996.2 C2 Coupe Arctic Silver
 
  
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kas750
Reims


Joined: 31 Mar 2013
Posts: 4435
Location: Chorley lancashire

2006 Porsche 911

PostPosted: Sun Feb 24, 2019 5:58 pm    Post subject: Reply with quote

NedHan79 wrote:
Job done



I would use a better quality worm drive clip than that.
Those dig into the rubber.
Good news on the easy fix though Thumb
 
  
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Paynewright
Monza


Joined: 17 Apr 2018
Posts: 159
Location: Nr Lutterworth Leics


PostPosted: Sun Feb 24, 2019 6:12 pm    Post subject: Reply with quote

De Mort,

What do you replace with - like for like or a jubilee style clip?

Ian
 
  
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NedHan79
Nürburgring


Joined: 08 Nov 2018
Posts: 451



PostPosted: Sun Feb 24, 2019 6:21 pm    Post subject: Reply with quote

Hi Maldren, I have a sunroof.
My car will only do long trips/motorway maybe once or twice a year. It generally only does a few blasts round home. It’s only a toy I use to blow the cobwebs out.

I get what you are all saying but I’ll probably do away with it at some stage.
I’m guessing this is the car that I’ll keep so resales not an issue.
 
  
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