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Discussion Starter · #1 ·
Hi there. First post so hoping you can help a noob out.

Ive got a pretty severe leak of coolant. First noticed on my first long journey, about 100 miles and the coolant light came on. No obvious leaks at this time so topped it up and did the 100 miles back. It was going from max to just below min over this duration.

Only used the car three times since, all 15 minute journeys to and from university. Most recent time there was a puddle under the car, coolant near enough completely gone. The puddle, and dripping is coming from the back of the engine bay, and is now a quite severe, constant drip. Enough to empty the coolant reservoir from max to nothing.

Ive got under the car using the help of a kerb (no jack unfortunately) and can't easily see where the leak is dripping from. I removed both parts of the intake pipe and have discovered oily water in the part that connects to the air filter.

Also i found an errant clear pip on the tray under the engine, below the gear box. Its oily at one end and clean at they other so I'm assuming some sort of run off pipe? I can't easily see where it connects and I'm struggle to find decent under bonnet photos or schematics of the area. Any ideas, could this just be a missing pipe?

Has my head gasket gone? Temps never go above 80ish although this does seem high compared to my last 206 hdi. Maybe a bit of white smoke but only on first start up. Car has literally only done about 50K. No mayonnaise in the engine and coolant looked ok but haven't used a test kit or anything.

Any advice?
 

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We need more information!.
Year, engine, anything else you might think of.
Having said that My wife's 2.0 hdi 307 had a leaking pipe that runs between the thermostat housing and the back of the water pump.
But you need to get safely under the car to get a proper look.

Roger.
 

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Discussion Starter · #3 ·
We need more information!.
Year, engine, anything else you might think of.
Having said that My wife's 2.0 hdi 307 had a leaking pipe that runs between the thermostat housing and the back of the water pump.
But you need to get safely under the car to get a proper look.

Roger.
Sorry Roger, thanks for the reply. It is a 1.4HDI, 2006. I think I've located the leak as a bit of a worn area on the bend of the corrugated coolant pipe that runs from the thermostat all round the back of the engine bay. Looks like the air intake has worn it away via vibration or something. Has anyone replaced this part? Does it require anything specialist if so?

The clear pipe I'm still not sure but may be a run off for the fuel filter and may not be related and just a coincidence that it some how fell off.
 

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The clear pipe could well be a water tap off for the fuel filter.

How badly damaged is the coolant pipe?
I've repaired chafed pipes with electricians tape, lasts years too.
Did it on my 406, never dripped ever again after that.
Although you will have to make sure the pipe is clean and grease free.
 

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Discussion Starter · #5 ·
The clear pipe could well be a water tap off for the fuel filter.

How badly damaged is the coolant pipe?
I've repaired chafed pipes with electricians tape, lasts years too.
Did it on my 406, never dripped ever again after that.
Although you will have to make sure the pipe is clean and grease free.
Its literally a pin hole but the pipe is pretty dirty. I think if I could remove it it would be worth just replacing it as replacement part looks about £40ish. However its in a really awkward position. I might give the electrical tape a go though. Thanks for the advice.
 
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