1.5 tsi, any progress?
- Thread starter Mr Pig
- Start date
It’s funny you say this…
So the Mechanic that had a look said he believes there’s a turbo leak? Intakes and boost pipes full of oil. And plugs have oil on them….
Also running rough on idle which I noticed myself when sat in driving seat.
The frustrating and ironic thing is when I had someone have a look at start of 2024 - So 2 years ago. I was told pretty much the same thing…
So I had mentioned it when I went to get it serviced that year and I was told no it’s fine.
2 mechanics have come to that conclusion about oil the intercooler ans intake, yet when I was raised similar concerns 2 years ago - was told no issue.
Considering the charge air cooler was replaced recently I don’t know how the technician didn’t spot this?
It’s due to go back in April but I want to see if I can get it sooner
So now I have the battle of going back and actually getting them to have a look properly and not just the bog standard scan for codes diagnostics - which I can do at home.
Frustrated because keep getting fobbed off and I anticipate it’s going to be the same situation.
Did you get any pictures and is the engine actually using any oil over time, to the point you need to top it up?
There will usually be some presence of oil in the intake due to how the crank breather system works
There will usually be some presence of oil in the intake due to how the crank breather system works
Unfortunately he didn’t get any even though I requested, but I’ve ordered an endoscope. See if i can get some myself.
Will check oil level tomorrow
But when I first I dropped it off he said he already thinks there’s an oil issue…Based on the oil around the intercooler pipe.
And when he took it off said there shouldn’t be this much oil in the pipe and into the intake.
Did send a picture of one of the plugs:
These are the photos I got sent back in 2024 when another mechanic concluded something similar. They pointed issues with Pistons and Turbo?
Which I did forward on to Seat Lookers.
From experience, that's nothing out of the ordinary.
Good luck trying to get anywhere with Lookers...
Good luck trying to get anywhere with Lookers...
Even oil on the plugs?
And oh I have no faith in them, it’s just due to my warranty.
Unless warranty work can be carried out elsewhere
All I want is to get to bottom of whatever is causing issues with rough idling and acceleration, and fuel lol
But guess might have to just cut my losses
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It's doubtful that oil on the plugs will cause any problems.
A vehicle with a Seat warranty can be assessed and repaired by any Seat dealer.
A vehicle with a Seat warranty can be assessed and repaired by any Seat dealer.
Lookers is closest one frustratingly at 10miles
Non lookers is further 20 miles.
Which is also why the whole thing is frustrating not like it’s just up the road. So taking time to get it there and collect is always inconvenient.
Something must be causing issues.
I was thinking more about this - and I do think something seems strange here.I found it strange that your coolant temp keeps dropping down below 90 - maybe down to 86-87.
View attachment 47796
But then checking SSP555 about the 1.5evo and using google translate; it says this:
View document [SSP 555 Двигатели 1,5 л 96110 кВт TSI семейства EA211 EVO]
vd Veer engineering car electronics. Haldex, DSG, CAN controller and other CANBUS devices.www.haldexcontroller.com
View attachment 47797
So this is probably working as designed - though we don't know what they class as 'high speed'? - would have been interesting to add your speed/load on to this graph - to see if these coolant temp dips correlate to your increased speed/load?
Your coolant gets upto temp in around 6 minutes and oil in about 17 minutes - seems 'reasonable' to me but be nice if someone else with a 1.5 could comment if this seems reasonable?
I don't understand why your actual and specified temp at radiator are so different?
The fan can also come on with AC demand - so not sure this is anything to be concerned about - unless it was coming on at 70mph?
Your coolant temperature graph keeps dipping down to below 90 (as I pointed out) and this should only be due to if the ECM sees high speed/load.
So judging by your coolant temp graph your ECM keeps seeing high speed or load - and so reduces coolant temp. You can bet if it sees high speed/load it will also increase your AFR (run richer/use more fuel)
Why is it seeing high speed/load?
Was it a very hilly road?
What speeds where you doing? were you changing your speeds?
Can you do the same log again - adding in vehicles speed and throttle position. Would be nice to determine what speed it classes as 'high speed'?
I dont know the 1.5 engine to be honest with regards to where the PCV valve is, but on my 2.0 tfsi, it was quite and easy swap. See:
https://www.seatcupra.net/forums/threads/how-to-replace-the-pcv-valve-on-a-ea888-gen3-engine.479206/
On the 1.5 DADA/DPCA
"surprisingly" It's actually quite simple and separate - number 32 (on the TDI it's built into the whole cover!)
05E103495B superseded to 05E103495AP
Genuine is about About £100.
Just buy a decent brand and you should be fine. On the 2.0 tfsi, Hengst is the OE supplier, but you can also buy a Hengst PCV valve without the VW branding for less off course
Sure I can try grab some data this week, not sure what where I was on that trip you quoted.
So would like to see
- Coolant temp
- vehicle speed
- Throttle position
Anything else you think would be helpful to chart? E.g. do you want coolant fan?
Really appreciate all your guys help to try and figure what it is.
Endoscope came today see if I can get a chance to ply around with it and look in the intake.
Thanks will keep that in mind and make a note, not too expensive to rule out I guess.
On another note, I’ve managed to get my car booked in at another Seat about 35 Miles away from me, for next week.
Was one closer about 20 miles away but earliest would be June.
Out the way but thought next weeks quite good instead of waiting months getting more frustrated as time goes on.
Hopefully they’ll be a lot more helpful than the place I’ve been back and forth with since 2023.
Going to collate any info I’ve got and send it on to them by end of week.
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