I have started noticing small pools of coolant on the drive recently on our 150 t-Jet. The confusing thing is, I have had it pressure tested twice over the last 3 months and nothing has been found and it can be weeks between these small losses.
I cant see any obvious signs of a leak, but the puddles appear to the middle front of the car, although the car is parked facing down a slight hill.

Before I put a K-seal in the system, has anyone else had a similar problem or aware of any common hoses/connections to inspect more thoroughly?

Thanks in advance

ETA I am now thinking it could be coming from the water pump and tracking down the undertray, since its about due a timing belt any way, I will get that done before I start putting nasty potions in the system!

Mine leaks coolant (Sub 50ml/month) from the banjo joint on the thermostat. I gave up getting it fixed.

Visually, I can see a puddle on the gearbox and sometimes on the under tray.

Matthen said:

Mine leaks coolant (Sub 50ml/month) from the banjo joint on the thermostat. I gave up getting it fixed.

Visually, I can see a puddle on the gearbox and sometimes on the under tray.

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Get new copper washers and make sure the fitting is clean/flat

I will have a closer look at that too. Thanks

There is a chance the oil cooler has some leaks as well, most of the ones i've seen usually leak some oil.. but since coolant is running through it could be a possibility

aurick86 said:

Get new copper washers and make sure the fitting is clean/flat

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Been there done that. The whole lot's been taken apart half a dozen times - I've given up on it

Just a quick update on this, it turned out to be the water pump, which was due to be replaced in any case. New cambelt and water pump fitted last week and not lost a drop since!

X19 pilot said:

Just a quick update on this, it turned out to be the water pump, which was due to be replaced in any case. New cambelt and water pump fitted last week and not lost a drop since!

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lucky it started to leak before timing belt went

Very lucky, although the belt and wp was done just over 3 years ago and I was going to get it done again after Christmas. I have had far too many lucky escapes with the belts on the Coupe to risk not changing it. I tend to change them every 3 years or so rather than waiting for the mileage to come around.