2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights
Could it possibly be showing a large coolant loss after initial filling due to air locking in the system. You don't say over what sort of mileage or timescale you are losing the coolant or indeed how much. As previously stated a poorly functioning cap or leaking reservoir can lead to loss of coolant simply because it boils off due to not being pressurised. The only way you will find out is by changing parts one by one or get a pressure test done when cold. good luck .
sanj (Sunday 27th March 2016)
Just gonna add my own experience here.
I had a mystery leak too. It started as top-up (warning lamp) once a month and randomly progressed to a couple of times a week.
I took it to my mate who did a pressure test. It was slowly leaking but neither of us could find where.
He refilled with antifreeze and it stopped for about 3 weeks, then it was suddenly daily top-ups and then every journey.
Eventually we found some water on the top backside of the front lip (in fairness it was raining a lot of the time it was leaking but still we should have seen it with the amount coming out) and there was a tiny (barely perceptible) stone hole in the radiator somewhere.
sanj (Monday 28th March 2016)
2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights
sanj (Monday 28th March 2016)
If you are down this way I know someone who can help too
sanj (Monday 28th March 2016)
if anyone is in the Birmingham area with a cooling system pressure tester I could borrower, id be happy to bribe you with beer
If you don't know what your doing with one and more importantly, what to look for, then I wouldn't advise that.
Best you seek professional advice rather than waste money on a cooling system pressure tester.
They don't come with instructions and you could easily misdiagnose a fault without proper training on one.
I think I live too far away for you to travel, Tim is much closer and probably your best bet. 150 miles with a suspect cooling system issue is generally, not recommended.
If Tim is busy (which is always the case) then a good local garage may be a better option.
Wouldn't want you to cause a bigger problem by driving it a long distance.
2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights
So, did you find the leak?
2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights
I have pressure tested all 5 cylinders and sniffer tested the coolent expension tank and all looks fine. Solid 13bar pressure and no exhaust gases in the coolent.
So, I can only believe that somehow the turbo or coolent lines going to the turbo is leaking coolent directly into the exhuast, can this ever happen??
Thanks
2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights
Oh yeh, I've not pressure tested the coolent system yet, I forgot you mentioned that before ..
But entertain me a little, could the turbo or coolent lines running to the turbo leak coolent into the exhuast directly?
I pressure tested the cylinders to make good of the head gasket
If coolant was leaking directly at the turbo and into the exhaust, the car would be undriveable! You would have plumes of white smoke from the exhaust, so I guess, you can rule that one out.
If you properly pressure tested the cooling system, you'd see the gauge needle on the tester drop with a leak. You'd also expect to see coolant appear on the floor and possibly hear it leaking, all this with the engine off!
If the engine is running and you do the same test and the coolant is leaking via the H/G, then the gauge needle would rise abnormally and not in correlation with pressure from expansion of the said coolant. This could only really be detected by someone with experience of using the tester regularly in the field or by a garage, not by a one off home mechanic.
Remember, you're diagnosing the cause of the symptoms not the symptoms of the cause!
You can check to see if the waterpump is working with a CSPT (Cooling system pressure tester) also with as little as 5 psi on the gauge and a negative or positive movement on the gauge with a blip of the throttle, depending on which side of the WP the gauge is. If you get no movement, often difficult to see, then suspect WP function.
With a CSPT alone you can check/diagnose:
WP function
Static system pressure
Expose HG leaking internal/external
Cap pressure and function
Test above with engine running or off.
It is vital a CSPT is used correctly as misdiagnosis through inexperience is common place and injury by scalding is also possible.
I would seek professional help Sanj, else it may cost you dearly if you get it wrong.
2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights
sanj (Sunday 10th July 2016)
Booked in for the 18th July
Last edited by sanj; Monday 11th July 2016 at 09:30.
LeeT5 (Monday 11th July 2016)
There are currently 1 users browsing this thread. (0 members and 1 guests)
Bookmarks