Coolant Leakage

[rcmadawala]

Hi guys,

In my Nissan TIIDA Latio (yom 2008 / 85k odo), I can see a small leak of coolant. Leaked coolant collecting on top of plastic (fan housing ? )

When i touch under the lid, It doesn't feel any coolant coming from there but can feel a little coolant-ish on the edge of the hose.

This is my first car so seeking some advise from AL experts

[rcmadawala]

ok I've inspected the top tank but couldn't notice a crack or leaking spot.

So decided to go with the clamp. Bought a wurth clip from Link, Jubilee post

before:

after:

Ran around 50KM and no leak so far. Let's see

[PerfMad]

Hi guys,

In my Nissan TIIDA Latio (yom 2008 / 85k odo), I can see a small leak of coolant. Leaked coolant collecting on top of plastic (fan housing ? )

When i touch under the lid, It doesn't feel any coolant coming from there but can feel a little coolant-ish on the edge of the hose.

This is my first car so seeking some advise from AL experts

Now that you have found the root cause, you can remove the hose from radiator cap end and check for any damages (make sure car is not hot when you are performing this).. My hunch is your hose end might have damaged, and that's what causing the minor leak.

if it's towards the end of the hose, you can always cut the damaged part and fix it again (only if the hose is lengthy enough)

[rcmadawala]

Now that you have found the root cause, you can remove the hose from radiator cap end and check for any damages (make sure car is not hot when you are performing this).. My hunch is your hose end might have damaged, and that's what causing the minor leak.

if it's towards the end of the hose, you can always cut the damaged part and fix it again (only if the hose is lengthy enough)

Thanks PerfMad on your valuable input.

So if the hose is not lengthy enough, do i have to replace the hose? If that is the case any input on where to buy would be awesome.

[Twin Turbo]

Extreme temps in the engine bay turns rubber into plastic. Don't forget to add a small hose clamp on the connection for extra leak protection.

Edited April 22, 2016 by Twin Turbo

[PerfMad]

Thanks PerfMad on your valuable input.

So if the hose is not lengthy enough, do i have to replace the hose? If that is the case any input on where to buy would be awesome.

If it's not lengthy enough to connect it properly i believe you can replace it with a radiator hose of same size.. Any garage will have spares for these.. It will not cost you more than 1k.. If you want to do it by yourself, you can find them almost any car parts shop i believe (Never had a Nissan brand, therefore not sure about specific car parts shop..)

Best thing is, check the hose, Only if its not lengthy enough go to a garage and they will get it done for you.. This is a simple fix should not cost you more than 1k.

[john cooper]

Don't forget to add a small hose clamp on it for extra leak protection.

This is the fix mate

[rcmadawala]

Thanks all. Then I'll cut / replace the hose and put a clamp too.

[Rumesh88]

While I do not dispute the above observations, please note that the small hose shown in the picture is not under high pressure at any given condition and hence cracking or deteriorating of the hose in a car which is only 8 year old is somewhat unlikely (unless of course someone has mishandled it or fixed a hose of the wrong size leading to a man made fault ). Another possibility is that the top tank has been replaced with a cheap after market product and the connection to the fill up tank is ill fitting. Either way while you are at it check for cracks in the plastic parts of the radiator top tank. More often than not it is the plastic parts that crack first.

Edited April 22, 2016 by Rumesh88

[rcmadawala]

While I do not dispute the above observations, please note that the small hose how in the picture is not under high pressure at any given condition and hence cracking or deteriorating of the hose in a car which is only 8 year old is somewhat unlikely (unless of course someone has mishandled it or fixed a hose of the wrong size leading to a man made fault ). While you are at it check for cracks in the plastic parts of the radiator top tank. More often than not it is the plastic parts that crack first.

Ah. It might be the tank

Edited April 22, 2016 by rcmadawala

[PerfMad]

ok I've inspected the top tank but couldn't notice a crack or leaking spot.

So decided to go with the clamp. Bought a wurth clip from Link, Jubilee post

before:

after:

Ran around 50KM and no leak so far. Let's see

That's great news..

[Vengeance]

I had a similar coolant leak in a much larger tube (the one connecting to the engine block) and it already had a clip, so tightening it further didn't work. I had to use high temperature-resistant silicon to seal it off. Guess you can try that out if the clip fails