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Discussion in 'Leon Mk3 (2012-2020)' started by YKFR, Jul 23, 2019.
A pressure test is definitive in revealing a problem. The system is pressurised and if it doesn't hold pressure it is faulty. Finding the cause can be another matter. It's the same with gasket tests, exhaust gases can only get into the cooling system from a leaking headgasket or a crack in the head or exhaust manifold.
The biggest problem today is getting Techs who know how to diagnose.
Do you reckon if it doesn't resolve I should take it to SEAT it self? They charge too much but I'm assuming they will be able to find and fix the issue.
Someone on here must know of a trustworthy workshop that could find the problem. What is the warranty situation on your car, if any?
What does consumer law cover where you are? Ours would cover that under "fit for purpose" clauses.
As a last resort it may pay to bite the bullet and go to SEAT. If someone else found the problem, you have also have a claim agianst the dealer who sold you the car.
Been thinking I might have to take it to SEAT... But I don't have too much money to burn like that. Its just so frustrating!
As stated previously somewhere here, I got the tank and cap replaced. And for a little while it was fine. I even drove on high speeds with high revs for a while. Coolant level stayed the same. It did decrease a bit but then after driving around for a while next morning it would come back to where it was...
However, today it suddenly was empty.... I drove around all day today. And checked it in morning and noon. It was fine. Then i went to my local park and it was parked on a decline, (decline wouldn't cause it took go fully empty I know) and once I came back after an hour I started the car and got a light to check coolant but this time it was Red light not Yellow....
Had to fill it up again. I think I will have to take it to SEAT now...
It does seem a lot like the same symptoms I had with the egr valve gasket, I would bite the bullet and pay the £90 diagnostic fee from seat. At least you will get it diagnosed properly hopefully then take it to the garage of your choice to fix if seat charge an arm and a leg to fix
SEAT charged you £90 for diagnosis? Were they able to tell you what was up 100%? Did you go to SEAT to get it fixed too or did another garage do it? And lastly which SEAT garage did you vist for diagnosis?
Before you removed and discarded the old coolant tank, did you have a look inside to see if there was a small bag of silicate? Seat fitted these in the coolant tanks to help prevent corrosion to the aluminium parts of the coolant system.
However, there have been reports of the bags perishing and splitting, and the silicate crystals getting into the coolant system and causing broken heater matrixes and components.
When I last had my car serviced by a specialist, thankfully they noticed it was still fitted in my car and removed it.
Just another potential idea as to what could be wrong or was the possible cause.
Where are you located? I would recommend taking it to a VAG specialist like TTS Roadsport (Bedford), Midland VW (Cannock) or LVS AG (Lincoln).
Yeah unfortunately that's what they charged to have a look as I'm out of warranty, as I get my servicing done at Seat I get the free breakdown cover who were my first port of call, he checked the car top to bottom for any leaks and did a pressure test which it passed so he recovered me to the nearest dealer which is Bradford JCT600, I normally use Huddersfield Sytner for servicing.
JCT600 were the guys that diagnosed the leaking egr valve gasket.
So I just got them to do the work while it was there. Due to work I can't be messing about going to different garages etc, new valve and gasket and £400+ lighter and the issue never occured again.
I'm not saying you have the same issue but the symptoms were the same so it's a possibility.
Find a good indy vag specialist as it may end up cheaper than main dealer.
I still have the old coolant tank, I dont know where that silicon pouch will be located. I am located in West Yorkshire but I do not know if there is a VAG specialist garage near me with in like 20-30 miles...
It is such a costly thing getting a car fixed if it messes up, especially now a days. Even getting the car looked at can cost you a pretty penny. It is ridiculous. If I cant think of anything then I will take it to SEAT JCT600 Bradford, it is nearest to me. But I do not know if going to a VAG specialist is worth it, not that I know of any anyway.
Is Knaresborough/Harrogate too far ? https://www.thevasstech.com/knaresborough/
or Leeds https://www.ivcleeds.co.uk/
Edit; These are not recommendations just pointers
Hi, have been talking to my mate about doing a cam belt and water pump change on my 14 plate 2.0 tdi fr and he says it has to go on a computer for about 20 mins where the programme revs and shuts down the engine and shuts and opens all the heater valves etc as the electronic water pump causes bleeding problems. Was this done after your belt change my
Ill check out the Leeds one because that's close enough for me to visit gonna ring them up next week and see what they say. Thanks for letting me know about them
I have no idea about that as the water pump and belt was done by SEAT and it was the first owner of the car who got it done.
How could I tell if that is an issue? Will I need to put it on a computer? If so then what am I looking for?
Took it to SEAT this past Tuesday. They had the car for all morning and noon. They did their tests and they gave me a report. The pressure test came back negative for any leaks. And they also couldn't pin point a certain leak.
They said that they think its either the headgasket or EGR. But they are not 100% about it as they need to dig into the car deeper and that's gonna require like 3 hours and going to cost over £200...
Keeping in mind that no coolant has dropped for over 2 weeks now. I'm thinking about waiting a bit and then getting these two things separately checked out. They also said the coolant loss is random and there seems to be no exact pattern.
If it was the head gasket, would you not get that creamy gunge on the underside of the oil filler cap to confirm this?
Not if it's an external headgasket leak... or waterpump seal.
But would you not see traces of that left on the engine or pump.