Coolantgate

[Tin.tin]

Hi Gents

Having an issue with coolant level dropping over 4-5 days, topping up around 250ml. Temp staying where it should be however & car runs as normal.

Had the car pressure tested at renotec as well as a local specialist. Both have reported no visible leaks, only a bit of coolant residue around thermostat housing flange & a bit around pipe from back of water pump.

Had thermostat done & flange vapour blasted not too long ago so that area was spotless initially.

Now seeing a new bit of residue around it, not a lot though. Which is odd considering no leaks from pressure test.

Im scratching my head as this a bit outside my comfort zone & both garages can’t say 100% what it is so a bit lost.

Any advice/recommendations would be greatly appreciated

Cheers

 

[Louis]

What jubilees are they? Only use JCS Higrips.

Check the heater matrix too and for any damp floors inside the car

 

[dann2707]

Personally wouldn't be using a jubilee clip at all on something that gets hot and expands and contracts. You need a constant tension clip on there imo.
I can't see it being the root cause but it's clearly leaking from there.

 

[Aaron..]

Personally wouldn't be using a jubilee clip at all on something that gets hot and expands and contracts. You need a constant tension clip on there imo.
I can't see it being the root cause but it's clearly leaking from there.

Here was me thinking there are just different types of jubilee clips.

I wonder if this is why my boat absolutely pisses coolant and sea water

Oh well.

 

[JamesBryan]

250ml every 4-5 days is a fair bit.

When they did the pressure test and couldn't see any leaks, did it hold pressure?

If it's holding pressure then it can only really be burning it.