2006 2.8 Crd Grand Voyager Suddenly Lost Its Water!

[chrisdavisberry]

Hi, 

 

Today my grand voyager suddenly smoked out the back and a little under the hood for about 1 seconds. 

 

I was going up a steep hill... no loss of power or any other sign. 

 

When i got home ( about 1 min down the road) i noticed the water was gone from the coolant bottle. 

 

Checked the pistons-  they looked fine (panic over re head) - then after a few mins i restarted and it dripped/poured a load more water (approximately 1 litre a min id guess)... from somewhere behind the engine on the driver side - but at the back of the engine bay and out of site from above. 

 

Inspection from top and a crawl underneath and I can't see where its coming from yet but will refill and look tomorrow. 

 

Does anyone have any ideas what could have caused such a sudden loss..

 

I'm hoping a loose hose and this caused it to steamed on the hot engine causing the cloud out back) ??? 

 

Anything else to look for though? 

 

Thanks

Chris

Edited September 29, 2019 by chrisdavisberry

[soupstone]

 Guessing it's got the auxiliary heater. 
Pipes running from behind engine to the Webasto, just to the rear of the drivers door. 

Look under the drivers door, a small exhaust should poke out a bit. Follow the pipes to the leak. 

[chrisdavisberry]

So - i found the issue but i don't know what the pipe is... or how best to access it... Even when the car was on a proper ramp.
 
Images will help here: See two attachments. 

 

How best to describe... (shown in image looking up)....

 

We are talking about an area behind the engine on the driers side...

From under the car facing forward there is a semi rigid large pipe (possible turbo pipe?) Approx diameter is 5cm).  

Just out of shot on the left it connects to a manifold via a jubilee clip. Ive undone this but there isnt much movement to move the pip completely out of the way. 

 

Above it is a rubber cooling system pipe. This is leaking somehow. But i cant see it clearly.  I did manage to get my hand onto it and could feel a jubillee clip on that facing the front of the car.... but i cant see where its leaking from or even if it is properly attached. 

 

Does anyone know what this pipe is? Does it have a name?  Im sure i'll need a new one but don't know what it is or how to find describe it.  I don't know where either end is going to.

I can't find a diagram of this part of the system even in the large manual.  If i could see a diagram or part numbers i should be able to pin point it. 

(my car is the 2.8 diesel 2006) 

 

Any ideas anyone please? 

 

Thanks
Chris

[chrisdavisberry]

 

This image could be an image of the hose. 

 

Can anyone:

 

name it or the part it connects to

suggest a diagram/system to look for. 

 

Thanks

Edited September 30, 2019 by chrisdavisberry

[scrufgp]

I'm not sure if my issue is related

But had similar problem

1 day all my coolant had gone

Filled it up kept checking regular

Appeared to only disappear while car was parked up

Turns out was the "O" ring on the water pump

Not cheap to resolve as was new cam belt kit new water pump

[chrisdavisberry]

Hi -

 

Definitely not from the water pump O ring.

 

I've seen that before with water around the pulley side. 

 

My leak is right round the back of the engine and related to a hose. 

See pic for possible culprit although i'm at a loss what it is.

 

Just not sure what it is (or why its gone!)

 

Thanks

[chrisdavisberry]

 

Best guess so far is lower thermostat pipe.

 

I then found another image on this forum for the same pipe. This is taken from above so shows the top pipe connection. 

 

Does anyone else agree this is a Lower thermostat pipe and if so any idea how i can get a part number or exact name for it? 

 

Thanks

[chrisdavisberry]

Its a Thermostat pipe. Found it - its leaking and replacement on the way. 

 

For anyone else access is from the top!