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1.8 TFSI Q vs 2.0 TDI Q?

Discussion in 'New A3/S3 (8V Chassis)' started by Ryanytchan, Dec 18, 2013.

  1. Ryanytchan
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    Ryanytchan Member

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    [Dec 18, 2013]
    Hi all,

    I placed my order for a 1.8 quattro petrol a few months ago as I thought diesels were a bit boring and not as 'explosive' as petrol cars. The past week I drove a diesel and was quite impressed by its torque and fuel economy. I checked the prices and the difference between the 2.0 TDI and 1.8 TFSI is roughly 1000 but the diesel has more power, torque and a higher mpg figure. Should I order a 2.0 TDI quattro instead? It's not too late to change my order. Would I also get a higher resale value if I went for diesel?
    P.S I won't commuting in the car it will just be driven on weekends and taken on road trips to Europe in long holidays. Fun factor is the priority really.

    Thanks in advance and happy holidays.

    Ryan
    #1
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  3. TDI-line
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    TDI-line Uber Post Whore

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    [Dec 18, 2013]
    That's a big YES from me, but i may be a little biased. ;)
    #2
  4. Ryanytchan
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    Ryanytchan Member

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    [Dec 18, 2013]
    Any complaints about the engine at all? And how many miles are you doing to a tank now?
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  5. TDI-line
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    TDI-line Uber Post Whore

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    [Dec 18, 2013]
    No complaints, probably the best diesel engine i've had, really nippy, and my last car was an A1 185, so virtually same performance and 0-60, but whereas the A1 felt rapid (in a little car), the A3 feels more refined and effortless.

    Fuel economy is averaging about 40mpg on the dis. I get about 450-500 out of tank, i use to get 250 out of the A1 lol.

    No brainer. ;)
    #4
  6. Ryanytchan
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    Ryanytchan Member

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    [Dec 18, 2013]
    Damn.. if you can only squeeze 450 out of a diesel I wonder how many I will get out of the 1.8 petrol?!
    Other than that it sounds good. Have you test driven the 1.8 petrol and if so how do the 2 compare?
    Thanks
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  7. TDI-line
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    TDI-line Uber Post Whore

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    [Dec 18, 2013]
    Sorry, but i wanted an A3 diesel (again) due to economy, the A1 185 was petrol but a completely different engine to the A3 180 1.8T, being a 1.4 supercharged and turbocharged engine.

    Book a test drive, at least you'll have a feel for both, but as it's more of your fun car, then the petrol may tick those boxes more.
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  8. Ryanytchan
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    Ryanytchan Member

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    [Dec 18, 2013]
    Now that you mention it, I've actually driven a 3dr 184 when I ordered, just didn't pay any attention as I never expected to buy a diesel lol
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  9. snakehips
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    snakehips Well-Known Member

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    [Dec 19, 2013]
    I held off buying the 1.8 TFSI because a lot of reviews didn't like the combination of that engine with the 7 speed DSG. The TDI with 6 speed seems to be more highly rated. Looking at your intended use I doubt you will do the mileage to claw back the extra cost of purchase and fuel but if that isn't a big concern for you I would definitely reconsider and at least test drive the TDI again.
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  10. Ryanytchan
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    Ryanytchan Member

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    [Dec 19, 2013]
    The 1.8 I ordered is quattro so it's a 6 speed dsg too. In terms of miles I will be keeping the car for at least 3 years so I think I should be able to recoup the difference in prices. I'm just waiting for the dealership to reply now and if possible I'll switch to the 2.0 184. Cheers!
    #9
  11. snakehips
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    snakehips Well-Known Member

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    [Dec 19, 2013]
    Sorry, didn't know the 1.8Q uses 6 speed.
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  12. Joetidman
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    Joetidman Well-Known Member

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    [Dec 19, 2013]
    If fun factor is the main thing, then don't bother with the diesel. Not that the diesels aren't excellent, but you won't really need the extra mpg, and the petrol engine will be quieter when idling, and make a better noise when reaching the higher rev limit when driving 'spiritedly'. Personal view of course (and in no way suggesting the diesels aren't great cars!!)
    #11
  13. snowfree52
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    snowfree52 Full LED baby !

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    [Dec 19, 2013]
    couldn't agree more, fun factor ? take the 180.

    then again, why not the S3 ?

    Are you going to remap ?
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  14. Ryanytchan
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    Ryanytchan Member

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    [Dec 19, 2013]
    so it'll be worth it even with less torque and worse fuel economy? Any idea how many miles the 1.8 will do on a tank?
    The insurance cost is too high for the s3 unfortunately. If there is a remap for 1.8 available then I might consider, but I don't think any are out there now as far as i know
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  15. snowfree52
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    snowfree52 Full LED baby !

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    [Dec 19, 2013]
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  16. Ryanytchan
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    Ryanytchan Member

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    [Dec 19, 2013]
    The showroom doesn't have the 1.8 for test drive, thanks for your suggestions though. The remap looks pretty good, any idea when it'll be out?
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  17. h5djr
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    h5djr Well-Known Member VCDS Map User

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    [Dec 19, 2013]
    According to the road test in the Audi Driver magazine in November 2013 the 1.8TFSI gave an overall of 39.1mpg. The fuel tank on the 1.8TFSI is 50 litres so that works out about 490 miles. A 2.0TDI-150 tested by the same magazine in the December issue gave 44.8 mpg so, with the same size fuel tank, that would give 529 miles.

    In the road test on the 2.0TDI they do say that on longer runs without any performance testing 50-55mpg should be quite easy to obtain giving a range of between 589 and 658 miles.
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  18. Ryanytchan
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    Ryanytchan Member

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    [Dec 19, 2013]
    Hmm, so I'm looking at a 100 mile difference then. It isn't as bad as I thought it is, roughly 10 quid difference per tank
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  19. Ryanytchan
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    Ryanytchan Member

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    [Dec 19, 2013]
    And with the 1.8 remapped it will outperform a stock 2.0 184. Wonder if fuel economy is gonna take a hit though?
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  20. h5djr
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    h5djr Well-Known Member VCDS Map User

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    [Dec 19, 2013]
    Depends what you meant by 'out perform'. If you mean it will go faster then Yes it will. But what will a remapped 184 do......
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  21. Ryanytchan
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    Ryanytchan Member

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    [Dec 19, 2013]
    Yes I meant stock 184. I've seen the figures for remapped 184, I think the biggest concern now is which one will be more 'fun' and the consensus seems to be petrol.
    I also did some maths and the 184 will be 20 pounds cheaper than the 1.8 per tank if you factor in the price of gas and extra mileage (assuming 184 will go 100 more miles compared to 1.8)
    Once I go over 30,000 miles the cost for both engines will be equal, and I can probably do that in 3 years.
    So final decision is: more power and torque for 184 vs more 'fun' in 1.8
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  22. TDI-line
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    TDI-line Uber Post Whore

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    [Dec 19, 2013]
    Also the quattro versions have the added weight from the 4 wheel drive, so all A3 quattro's (including S3) have a 55 litre tank to try and balance out the illusion of getting more miles per tank.

    My TDIQ gets around 40 mpg combined, no where near the fore casted 57.6 combined. lol.

    I can see 1.8Q being alot lower than mine.....
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  23. Ryanytchan
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    Ryanytchan Member

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    [Dec 19, 2013]
    Edit: Too late to change, it's confirmed by factory. Guess I'll chip it when I can! Thanks everyone
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  24. h5djr
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    h5djr Well-Known Member VCDS Map User

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    [Dec 19, 2013]
    As long as you're happy with your choice that's all that really matters. I had four A3 1.8T (8L) before I changed to the 2.0TDIs. When I wanted to change my last 1.8T Audi could only offer a 2.0 petrol, with no turbo and it was totally gutless. So I tried a 2.0TDI and it was much more like the 1.8T. Now I'm on my fourth 2.0TDI and I like the rather lazy way it produces it's power at low revs and the miles it can do between fill-ups when I travel to Germany, where unlike in the UK, diesel is so much cheaper than petrol. Now of course Audi offer turbo petrol as well as turbo diesels.
    #23
  25. snakehips
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    snakehips Well-Known Member

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    [Dec 19, 2013]
    After my order was locked in I spent the whole time second guessing my spec but trust your initial decision - I'm sure the TFSI will be great for you, especially if you want a bit of fun added to the mix.
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  26. TDI-line
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    TDI-line Uber Post Whore

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    [Dec 19, 2013]
    Cancel. ;)
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  27. snakehips
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    snakehips Well-Known Member

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    [Dec 19, 2013]
    Secretly I agree with you and I was just trying to be supportive. But please keep this between just the two of us... :happy:
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  28. kimhemm
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    kimhemm Member

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    [Dec 19, 2013]
    Don't worry.

    The 1.8 TFSI is a great engine and will give you a lot of fun. Get a new down pipe and remap it and you should be looking at 225-230 HP and a good torque curve

    And a remap will be about the same fuel economy
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  29. Ryanytchan
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    Ryanytchan Member

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    [Dec 19, 2013]
    lol, I might have seriously considered that if not for another 4 months wait!
    #28
  30. h5djr
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    h5djr Well-Known Member VCDS Map User

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    [Dec 19, 2013]
    Does anyone do a remap for this engine. I have seen one listed on any of the normal remapers websites yet.

    See this post: http://www.audi-sport.net/vb/a3-s3-...8tfsi-2012-cant-remapped-via-ecu-bluefin.html
    #29
  31. Ryanytchan
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    Ryanytchan Member

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    [Dec 19, 2013]
    #30
  32. Joetidman
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    Joetidman Well-Known Member

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    [Dec 19, 2013]
    #31
  33. Ryanytchan
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    Ryanytchan Member

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    [Dec 19, 2013]
    #32
  34. Joetidman
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    Joetidman Well-Known Member

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    [Dec 19, 2013]
    #33
  35. kimhemm
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    kimhemm Member

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    [Dec 19, 2013]
    #34
  36. kimhemm
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    kimhemm Member

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    [Dec 19, 2013]
    Yes no problem with that at all
    #35
  37. Joetidman
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    Joetidman Well-Known Member

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    [Dec 19, 2013]
    Yeah it's not clear in the techs. Big increase in torque though from 173 to 221 ft/lb! Pushes 0-60 down to 6.8
    #36

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