1.5 tsi, any progress?

Mr Pig

Active Member
Jun 17, 2015
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1,033
What about using the money to recon you engine and bearings etc… I only say because I had to fit a replacement lower engine from an Audio last year it’s like new car.. my car is on 125000 on the clock but I’m keeping as long as possible as I agree with all your comments. Whats out there to replace with 🙂
I'm looking at the Audi TT. Pick would be the 2L 230 but finding the ideal car seems tricky. Audi were very stingy with the standard kit, you'd be amazed by how many of these cars do not have cruise control!

I don't see the point in sinking money into my Leon. Cars get to a point where they start costing you money and it doesn't balance out. Any money you put into an older car is gone, you don't get it back. No one is paying more for a car with a replacement engine or new clutch. The trick is to get rid of cars before they get to that point.
 

RUM4MO

Active Member
Jun 4, 2008
8,028
1,093
South Scotland
Some of these modern VW Group engines, it seems, can't be rebuilt, checking through the parts cat for your engine will confirm if it can be rebuilt.
 

SuperV8

Active Member
May 30, 2019
1,732
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@SuperV8

So did a 71 mile round trip of mostly motorway on this sunny Saturday.
Managed to squeeze just over 40mpg - Cant say im impressed considering the type of journey...

Start of trip:

Coolant tempOil TempActual Coolant temp at radiatorSpecified Coolant Temp at radiator
13c13.5c13.8c`105c


End of trip:

Coolant tempOil TempActual Coolant temp at radiatorSpecified Coolant Temp at radiator
101c96.5c41.7c102.7c



Logs from this journey:

DpURJU2VbRVptMYwXQD042M4



Radiator temp peaked at 51c
View attachment 47772


Fan operation vs coolant temp
LK8NkgF9HRhsYmfOZoiqgX6F

I found it strange that your coolant temp keeps dropping down below 90 - maybe down to 86-87.

1744013423788.png


But then checking SSP555 about the 1.5evo and using google translate; it says this:

"Phase 04 Coolant temperature regulation to 85–105 °C
After the engine has warmed up, the coolant temperature regulation begins, depending on the operating mode.
This regulation is carried out exclusively via rotary flap 1. Rotary flap 2 is fully open and remains in this position. The coolant temperature is maintained at 105 °C at low load and speed, and is reduced to 85 °C at high load and speed.
Regulation is carried out steplessly according to programmed parameters"

1744014201449.png


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?
 
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SuperV8

Active Member
May 30, 2019
1,732
831
Some of these modern VW Group engines, it seems, can't be rebuilt, checking through the parts cat for your engine will confirm if it can be rebuilt.
By rebuilt - do you mean cylinder over boreing? If yes that has been the case for many manufactures for years using spray on cylinder wall coatings.

I'm sure you can buy the required engine parts block/crank/pistons/head etc- but whether it makes financial sense is another mater.
Cam's for my TDI for example are available - but ONLY as a complete cam module - which includes all cams in a housing and would be very expansive.
 
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SuperV8

Active Member
May 30, 2019
1,732
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I was referring to the bottom end, assembled initially while the block is braced in a jig, loosen off bearing caps at your peril.
Just checked and I need to revise my comments :ROFLMAO: - you can't buy crank or block for the petrol engines! Only pistons and rods.
You can't buy the TDI blocks either - but you can buy the TDI cranks and bearings!
 
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