Well, after about 5 months of trouble free driving (bar the odometer), my
405 has developed a small radiator leak - or so I think. The leak is from
the lower driver's side of the radiator, and it is very slow, and not
consistent. When it does leak, it is drip by drip - it will drip maybe 5 or
6 tablespoons of coolant (rough guess) and then stop once the engine has
cooled down. Also, sometimes it doesn't leak. Also, the car has about 81K
on it, and was involved in a minor accident where the front was hit and the
bumper pushed slightly back about 9 months ago (no, not the rear bumper
accident!). This was subsequently repaired, and there was no radiator
damage at the time.
First, is it possible that it is not the radiator, and rather something
else - perhaps some sort of plug or fitting that goes into the radiator?
I've checked the hoses, and they are fine.
Secondly, it looks extremely simple to remove the radiator. I assume
that all that needs to be done is to remove the hoses and attached pieces,
remove the plastic cowl directly above the radiator, and release the metal
clips holding it in, then pull it up and out? When reinstalling, I
understand that purging air from the system is important, and not
necessarily easy on the 405 - is that a correct assumption?
And third, is this radiator repairable - ie, it looks plastic, so I am
assuming there is a good chance that it can't be soldered if the leak is not
in the core - are there any sealants that I can use (internal or external)
that won't block passages? On the Italian Cars Digest, many people stood by
Aluma-seal (I believe that's the name) as a good solution to leaking
radiators and headgaskets.
Thanks in advance!
Adam
'89 405DL
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