Very happy with my new Superb. Does anyone else notice the engine go to 2 cylinder mode, by the engine being a bit rougher and you can feel it being a bit rumbly, bit like being on a concrete road? More so if using slight power in Eco mode, not coasting. Just gone over 1000 miles.

Got an a3 courtesy car with this in at the moment. I didn't realise it was this morning, however, having spotted it on the display I think the change to 2 cylinder is just about noticeable and that is all.

I too have the 1.4 Tsi ACT engine and I cannot tell any difference between 4 and 2 cylinders.

The change is absolutely seamless.I have now covered about 2,600 miles and have not noticed the change once in all that time.

I was at a traffic island this morning and I thought it was in start-stop mode (I had forgotten that I had switched it off earlier), and only knew it was running by looking at the rev counter. The engine is really quiet. 

Sorry that does not help you but the experience of a fellow 1.4 Tsi ACT owner can at least give you a point of reference.

I'm nearly up to 8000 miles in mine and think it's a great bit of engineering giving me 50+ mpg average economy to date.

I agree with the OP, in certain situations you can feel the engine is in two cylinder mode. You'll feel out most noticeably at low engine speeds, ie below 1.5k rpm and for me, most noticeably in sixth when your using a bit of throttle to maintain speed but not putting load on the engine. I find that although the car maxidot is telling me to change up, is smoother and better mpg to run in fifth between 40 and 50 mph rather than sixth. Give it a try and you'll see what I mean assuming you have a manual box.

You'll also note that in the same situations when you add sufficient throttle on a higher gear you'll notice the engine give the car a little shove along the road as all cylinders come back in line.

None of the above detracts from the car. The engine is whisper quiet at idle and no nasty vibration or rattles in the cabin when accelerating.

Yes it's only certain situations as you describe that it can be felt. Having a good run around North Yorkshire this week so doing he engine some good. Same with the manual box I don't always go into 6th until a bit later on. You feel it when trundling along under 40, and are just gently touching the throttle on 2 cylinders.

Hi.

I own the same engine. It depens how detail-prone you actually are.

Due to the fact that (unfortunately to me) I always hear and feel everything.

You can certanly feel when the engine goes to the 2-cyl mode.

I would describe it as a very small bump. It does not disturb me.

Engine work regiment change: My engine keeps rev´s higher. The last car that I had was over 10 years old (Audi A4), it had kinda the change mod done with the multitronic CVT gearbox.

With the Audi it was disturbing, cause the car became really erratic (meaning, that if you slightly over push the acceleration then the car would jump). The new superb is pretty much perfect, 

meaning that you see that the engine rev´s are a little bit higher but the car feels the same.

One thing that springs to mind with this engine, does it always shut down the same two cylinders?

If so would that make a wear difference between the two sets?

One thing that springs to mind with this engine, does it always shut down the same two cylinders?

If so would that make a wear difference between the two sets?

Yes, the two in the middle.

The cylinders carry on moving, just stop combusting. So not sure on the wear differences.

?

Has anyone done enough miles yet, or just had a look at all 4 spark plugs?

 

What is the VW Group / Skoda recommended Service Schedule on changing spark plugs?

Not at 40,000 miles is it as was with 1.4 TSI / TFSI Twinchargers 132-136 kw, 

because often these were not good for 20,000 miles, 

yet in 6 years of failures VW changed the Plug Spec and gap, but not the supposed life for changing of these 'Long Life' Spark Plugs.

 

Off Topic but relevant.

The 1.4 TSI / TFSI ACT / COD run on 95 Octane Unleaded as all EU Euro 5 / 6 Emission engines must.

They may run more efficiently & economically and with less emissions on 97 or 99 Ron Super Unleaded as readily available in the UK, or on 98-102 Ron available at the pumps elsewhere in Europe.

With Tesco Momentum 99 @ £2.25 extra for a Tank Fill in the UK you may just get that back in a better running engine 

and improved economy with a ACT / COD.

Edited 9 June, 20169 yr by GoneOffSKi

I've only used BP ultimate in mine which is 97. Would be interesting to check the plugs as you mention.

Don't waste your money. Run on 95 RON.

The higher octane fuels only give marginal gains on big engined gas guzzlers.

Check out YouTube if you doubt me.

It's all oil company hype.

Don't waste your money. Run on 95 RON.

The higher octane fuels only give marginal gains on big engined gas guzzlers.

Check out YouTube if you doubt me.

It's all oil company hype.

 

From new my 1.4 16v Octavia "pinked" very slightly (most wouldn't hear it though) at low revs under heavy load on 95 ron petrol so since I've usually filled up with 98/99 ron - usually Tesco Greenenergy or Shell vPower

 

Wasn't sure about my Superb tsi as had always fed it higher octane petrol anyway however when I had to use a tank of 95 ron petrol when in France I did notice a slight pinking whilst driving fully laden (windows down) up a steep hill. 

 

I will be sticking to higher octane petrol where possible more for the good of the engine than potential fuel saving

Edited 10 June, 20169 yr by bigjohn

1.4 TSI / TFSI 132-136 kw Twincharger euro 5 emission engines 2009-2015 are not 'big engine gas guzzlers 

and they have the recommended by VW fuel of Super 98.

Actually many run rubbish on 95 and not great on 97 ron, consume spark plugs in 1 cylinder at half the service schedule that VW have for them.

 

Head to mainland europe and get 100 octane and you easily can feel the improvement, as you can try for your self with Tesco Momentum 99 

which is a minimum 99 octane and can exceed that.

 

It is really simple to measure the improvement if there is any with efficient running or improved economy,

after all you fill up regularly, know how you drive and can monitor with Fuelly or just in a note book.

Its not rocket science, or even rocket fuel, just not the minimum fuel you can run.

 

VW bother to give advice to GTI / R Drivers, but Skoda do not bother in websites for owners with the same engines on Skoda Models, 

ie 2.0 TSI 220ps engines.

Or actually for Fabia MK2 vRS 1.4 TSI Owners.

http://volkswagen.co.uk/need-help/owners/Fuel

Edited 10 June, 20169 yr by GoneOffSKi