|
|
|
2014 Seat Leon Coolant Leak from Reservoir
|
|
|
| |
|
|
Goyito-94
New User
Sep 11, 2022, 3:28 AM
Post #1 of 6
(2826 views)
|
|
2014 Seat Leon Coolant Leak from Reservoir
|
Sign In
|
|
Seat Leon FR (2014)
2L Diesel
75,000 Miles
Hi guys,
I'm having issues with my coolant leaking (seemingly from the reservoir).
4 weeks ago I had an error display on my dashboard for low coolant level. I checked and it was below the threshold so topped up with the recommended coolant.
The car was then due a service and MOT, I mentioned to the garage about the issue with the coolant and they said they would check. The car came back all clear, passed the MOT and no leaks found in the coolant pipes.
1 week later the warning came up again on my dashboard for low coolant level, again it was below the threshold. After a bit of investigation it looked like the coolant was leaking from somewhere around the reservoir or the join between the bottom of the reservoir and the hose (this is where the hose and engine were visibly wet.
I took it back to the same garage that did the service and they replaced the jubilee clip between the hose and the reservoir (as again they could find no leak in the hose). I then took it to a second garage (for peace of mind) and they could not find any leaks either but replaced the coolant reservoir and reservoir cap in case of any small fractures in the plastic.
Driving to work today and as I'm parking up I hear a bubbling/squirting sound from the engine. I check, and the exterior of the coolant reservoir is wet and all the engine underneath as well. The reservoir has lost around 0.5L of coolant in this one trip.
So now I'm unsure where the problem is. I don't know if the reservoir was slightly overfilled or if there is another issue somewhere in the system. There are no error lights on my dash and the coolant temp has never exceeded 90 degrees.
Any help or pointers of what to check would be much apprecieated.
Thanks
|
|
| |
|
|
Hammer Time
Ultimate Carjunky
/ Moderator
Sep 11, 2022, 4:19 AM
Post #2 of 6
(2813 views)
|
|
Re: 2014 Seat Leon Coolant Leak from Reservoir
|
Sign In
|
|
We don't have that vehicle here in the US so we have nothing specific to the car.
It sounds like you may have a blown head gasket and the engine is pumping combustion gases into the cooling system causing it to percolate and push out the cap release. Someone needs to examine the engine closer.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Sep 11, 2022, 4:20 AM)
|
|
| |
|
|
Tom Greenleaf
Ultimate Carjunky
/ Moderator
Sep 11, 2022, 5:04 AM
Post #3 of 6
(2805 views)
|
|
Re: 2014 Seat Leon Coolant Leak from Reservoir
|
Sign In
|
|
Idea though: Check pressure cap that it and cooling system will hold a static pressure - everything just cool/cold engine.
I think you have heated coolant leaving engine/radiator but returning air when it "shrinks" from cooling down, hence air inside engine.
You'll need one if you don't get the right help or find its flaw sometimes a hose from raditator to tanks fail if done that way (no info as Hammer said on this car) that's enough to ruin an otherwise OK engine.
Find this problem it's nasty if you don't,
Tom
|
|
| |
|
|
Goyito-94
New User
Sep 12, 2022, 5:22 AM
Post #4 of 6
(2765 views)
|
|
Re: 2014 Seat Leon Coolant Leak from Reservoir
|
Sign In
|
|
Update on this.
Managed to get the car home. The problem seems very intermittent. As described before the problem has happened 3 times in the space of 4 weeks but apart from that the car has been running fine, no leaks, no loss of power, no smoke or steam from the exhaust or engine.
On my journey home last night I had the heaters on full to try to remove excess heat from the engine. Despite the journey being over 1 hour no heat ever came from the heaters. They continued to blow cold air even after 1 hour of running.
Managed to drop it off at a garage this morning and they think it may be something to do with the water pump. The only thing I am unsure of is that at no point in the 4 weeks has the coolant gone above 90 degrees (celcius) and the engine or oil temp has never gone above normal either.
Thanks again for the help.
|
|
| |
|
|
Tom Greenleaf
Ultimate Carjunky
/ Moderator
Sep 12, 2022, 7:19 AM
Post #6 of 6
(2756 views)
|
|
Re: 2014 Seat Leon Coolant Leak from Reservoir
|
Sign In
|
|
OK, glad it's at a shop now. IDK about a water pump allow them some testing while engine is all there, together.
No heat while driving? That smacks of no coolant in a heater core (small radiator) for any reason yet reads cold for an engine?
Wishes for you: It could need a water pump doesn't explain this while raining I plain don't get that part short of wild flooding type rain and driving in it?
Allow a careful diagnosis once apart testing is impossible can see evidence if taken apart of a failed item.
Note: Liquid cooled engines are to be without air inside pressure areas of cooling system. Exhaust vapor behaves like air my though (so new on this car) is heat expands coolant to a tank and if it can't bring only coolant back for a leak in hose or tank if a pressure tank brings back air thru the leak - same problems you have.
They end up needing head gaskets or another engine you can't just drive despite it says cool isn't accurate in air/vapor could be piping hot one area and cold another. Yes - water pump in air wouldn't pump - the whole show stops.
Expect some damage now may only show what happened to cause this,
Tom
|
|
| |
|
| | |
|
Auto Repair Home
SEARCH
WHO'S 
LOG 
Lukewarm Heat............
Buy Flualprazolam Powder Online Whatsapp: +1(424) 328-1086
1989 toyota pickup 3.0 crank no start
