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1.2 petrol versus 1.6 TDI with DPF

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I am thinking of changing mu Roomster (56reg) which is a 1.9TDI with no DPF filters which seem to cause aggro to some people. and I wonder if anyone has the 1.2 petrol 105ps engine and what it performs like.

We also had the old 1.9 TDI for over 3 years, and are currently driving a 1.2 TSI 105 DSG. At least with the DSG the car seems to have more than enough power for daily use, and at least I am very happy with the engine. The diesels are very expensive to drive in Finland and I specifically wanted a DSG, so there was really not much to think about. Since even Octavias are available with the 1.2 TSI the engine is more than adequate for this small (on the outside that is) car. I have been getting over 42 MPG (6,7 l/100km) for the first 10 000 kms, and last tank was over 45, so given it's shape its fairly economic to run. I even do most of the driving commuting on clogged motorways and sububan streets.

Hi Andy. I love diesels, especially the 1.9TDI. But diesels have become so complex these days and the DPF so problematic that I have decided my next Roomster will be petrol. The 1.2TSI seems very highly regarded on Brisky.

I haven't driven a diesel Roomster but my previous 2 cars were diesels. Have to say I really enjoy driving the 1.2 105 DSG with 3,000 on the clock it is returning mpg figures comparable to the last diesel car I had so with the price at the pumps being 6 - 8p per litre cheaper for petrol and 500+ miles possible from a tank of fuel I am happy. In terms of performance it seems happy enough cruising along at 70mph in 7th as it does in pottering around town, as well as having enough oomph for overtaking and spinning the wheels :giggle: As long as you match the revs and DSG mode to the road conditions the 1.2 DSG combination seems very accomplished.

Edited by hertsnminds

We had a long test-drive in both the 1.6 TDi and the 1.2 petrol Roomsters, and were surprised by both engines - surprised just how noisy and rough the diesel felt, and surprised just how good the petrol was!

The diesel was nowhere near as refined as our little Fiat Panda Multijet. But the petrol was an absolute peach! You'd never think it was a 1.2, plenty of torque low down the rev range, so very relaxing to drive - it was the 85hp model we drove as well!

We ended up ordering a petrol model, never thought we'd go back to a petrol either. Just seemed like a no-brainer to us...

as has been said, it's an amazing engine. I've moved from a series of Diesel Octavias to a 1.2 Yeti. It has more than enough power. If it can haul a big lump like the yeti around then it should be fine in a Rommster :thumbup:

Driven the 1.2TSI in the Fabia (both 85 & 105) and the 1.6 TDI 105 in an Octavia II. If your not doing double the miles to warrant diesel economy, the little TSI is defiantly the way to go; far nicer engine.

TP

I have a 1.6 Tdi engined Seat Altea XL, 105 BHP version with the stop start technology. I assume it's the same engine as in the Roomster, and it is really impressive in terms of power, economy and smoothness. When I can afford to change from my 1.9 56 plate Roomster I won't be hesitating in doing a deal.

Edited by richardf

I have a mark 1 Fabia 1.9TDi which is a great engine and I am pleased to have owned a PD engined diesel.

Now it's 10 years old I am thinking about purchasing a 1.2TSi either 85 or 105bhp. I think the engine pulls

way above it's engine size. I don't do the mileage to go for a diesel otherwise the 1.6CR 105 is a great engine.

For me personally I don't really want the DPF hassles some people have. You won't be disapponted with a small TSi.

As to my own taste, I'd go for a TSI 105 (which I did, actually).

The only reason I would buy a TD (the 1.6 90hp is more than adequate) is a heavy mileage. Do your calculations (I advise you visit one of those consumers' associations websites) and find your break-even point, then think diesel if your mileage is definitely above that point.

BTW, if you choose TSI and can afford the difference, go for the 105hp. In everyday usage economy figures are practically the same but 105hp is funnier emoticon-0140-rofl.gif.

Edited by Lorenzo

I thought I would be buying a diesel, before I tried the TSI. It's torgue range is phenomenal. I'm getting my Roomster 1.2 TSI 105 tomorrow :yes:

Yet another vote for the petrol. As said diesels are just way too complicated now, bearly any cheaper to own in reality because of higher purchase price, and horrid to drive (when compared to the TSi at least).

As said diesels are just way too complicated now,

:D And a TSi isn't?!

and horrid to drive (when compared to the TSi at least).

In your opinion, not in mine...

Petrol engines are getting there, but not quite there yet... ;)

Edited by The PM

I never even considered the TSi, as I carry heavy loads a lot and wanted the grunt of the TDi and the economy. I can get 55mpg on a motorway at 70mph fully loaded up... no way could you get anywhere near that in a TSi.

  • 2 weeks later...
  • Author

Hi,

Well having test driven the 1.2tsi 105ps and liked it I have ordered a new Scout with that engine so it's goodby deisel and back to petrol.

  • 1 month later...
  • Author

Hi All,

Well I did the change and bought a new Scout with thge 1.2 105bhp tsi engine and I am well impressed it has a terrific amount of power and the torque is pretty good too. I would recommend this engine to anyone

Hi All,

Well I did the change and bought a new Scout with thge 1.2 105bhp tsi engine and I am well impressed it has a terrific amount of power and the torque is pretty good too. I would recommend this engine to anyone

Hi!

That was a quick delivery!! Glad you like the engine. I thought I would miss the 1.9 TDI, but the 1.2 TSI Petrol is nearly as powerful and easy to drive, and the consumption is really not that much worse. And with extra road tax on diesels for several hundred euros per year the economy is actually better with around 10K miles yearly

I did the same switching from 2.0 pd octavia to a 1.2 tsi yeti. I used to average 48 mpg on the motorway in the Octavia and I get around doing 47 in the yeti. The tsi is astounding.

Sent from my motorola xoom using tapatalk

Good morning all,

So it seems that the TSI engine is the way forward...I like what I hear about this engine and will probably be specifying it when I decide to change vehicles......but......

Anyone got any comments or observations regarding reliability issues and what sort of cam belt does it have.

Any comments gratefully received.

Terry Smith

The 1.2 TSI has chain.

My link

Edited by the_raz

Good morning all,

So it seems that the TSI engine is the way forward...I like what I hear about this engine and will probably be specifying it when I decide to change vehicles......but......

Anyone got any comments or observations regarding reliability issues and what sort of cam belt does it have.

Any comments gratefully received.

Terry Smith

Well, after 16.000km my MaxiDot shows 5,7l/100km (the official Skoda data, incidentally), which is 49.55 MPG after 9942 miles....not too bad for a petrol engine emoticon-0140-rofl.gif

Supposing the OBC is optimistic, 48 or 48,5 MPG is a realistic figure in my case.

As to the reliability issues, the TSIs have been around for some time and should be pretty reliable now. Theorically, the 1.2 is simpler than most engines, having just 8 valves and a single camshaft. No belt, just a chain with little o no maintenance. The only added complexity is Direct Injection and a turbine, which are pretty common tricks, today.

As to real world cases, in Italy we recently had a recall on a little number of 1.2 TSI for defective timing chains. I also read of ECU settings problems on 2010 engines, fixed with subsequent ECU updates. But nothing more.

I've been following this post with interest because I do have an Altea 1.6 Ecomotive and I'm happy with it. Overall it gives about 54MPG which is good. However, if I'm honest, my 56 plate 1.9Tdi Roomster 3 is a better sorted transmission, with more appropriate gear ratios. 54MPG is easily obtainable without much effort on my part and I don't ever have to consider 2000 rev running once a week to clear the DPF. It's reliable, spacious and comfortable.

Have things really progressed at all? Apart from emissions limit changes, taxation, the need for stop start technology etc. etc.

Hmmm. Looks like I may have to keep this Roomster for a while yet.

I've been following this post with interest because I do have an Altea 1.6 Ecomotive and I'm happy with it. Overall it gives about 54MPG which is good. However, if I'm honest, my 56 plate 1.9Tdi Roomster 3 is a better sorted transmission, with more appropriate gear ratios. 54MPG is easily obtainable without much effort on my part and I don't ever have to consider 2000 rev running once a week to clear the DPF. It's reliable, spacious and comfortable.

Have things really progressed at all? Apart from emissions limit changes, taxation, the need for stop start technology etc. etc.

Hmmm. Looks like I may have to keep this Roomster for a while yet.

The problem with small diesel cars in Italy is that their TCO is rapidly increasing (buying, maintaining, taxes, fuel price) and they become cheaper than petrol models only after 24.000-25.000 Km per year (15k miles or more), roughly. I considered buying the TDI 90 CR for its good torque and low consumption, but after some thorough figuring I chose the 1.2 TSI. And, it is quieter than the TDi, which adds a bit to the global comfort.

It could be in the UK small diesel cars are more money saving.

BTW, if I had chosen for a bigger MPV I would have had no doubt, diesel engines are the way to go. But in smaller cars these TSIs really deserve a chance. ;)

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