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Car Forum / Peugeot Cars / May 2005

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Water loss 406 D

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terb - 06 May 2005 21:04 GMT
I seem to be losing a very small amount of water from my cooling system but
cannot find source of leak, would it be alright to add "Radweld" would this
affect antifreeze?
Grateful for any advice.  Terb
RooMonster - 06 May 2005 22:11 GMT
Hi,

You may have a problem with your head gasket.  It may have blown
allowing water to leak into the cylinders or mix with the Engine Oil.

Oil turns a milky Brown when it has water added.  I suggest you check
the oil filler cap for light milky deposits.  If you have these of the
underside of the Oil Filler cap then one of the gaskets within the
engine will have blown.

Richard
RooMonster - 06 May 2005 22:20 GMT
Sorry forgot to say that radweld will not help if the problem is
because of a blown seal/gasket within the engine.

I personally would not use radweld,  It can cause more problems by
cloging up other parts of the engine.
Streltsky - 07 May 2005 16:20 GMT
> Sorry forgot to say that radweld will not help if the problem
> is
[quoted text clipped - 3 lines]
> problems by
> cloging up other parts of the engine.

My 205 did this for about a year, then it started loosing loads of
water and in 3 days the engine was completely dead (metal flecks in
the oil etc). I don’t know if the engines are similar at all but on
the older engines coolant loss is an indicator of engine damage. Also
exhaust coming up through the coolant shows the same but I don’t know
how you check that on a 406.
akd - 07 May 2005 21:07 GMT
>  > Sorry forgot to say that radweld will not help if the problem
>  > is
[quoted text clipped - 10 lines]
> exhaust coming up through the coolant shows the same but I don’t know
> how you check that on a 406.

My 406 does the same, most do.....

Have a look at the bottom left of the radiator for corrosion and you may
find a small corrosion leak.

Or the Intercooler may have damaged the front of the radiator.

Andy
terb - 07 May 2005 22:21 GMT
Thanks for all your advice.  Andy have looked at radiator and found some
blue marks towards the bottom, could this be a sure sign of coolant
leakage?
RooMonster - 07 May 2005 23:03 GMT
Yes it could  Depends on the Anti-Freeze Used.  Most leave light blue
deposits around the leak.

It sounds like it could be the leak to me :)
 
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