I recently bought 2018 fabia wagon with 1.0 mpi 75ps engine and while i am very satisfied with this car, its fuel economy and low maintenance cost i was wondering if swapping an 6 speed manual gearbox from 1.0 tsi is possible. Does anyone have knowledge if this 6 speed gearbox fit into this engine, does it have the same driveshafts lenght? After driving this car for a while i noticed that 3rd and 4th gears are pretty much useless, i can drive around 60kph on fifth gear without any audible struggle from the engine and i figured that having a little longer ratios wouldnt hurt, especially on longer roadtrips when i go on the motorway and go at speeds around 110-120 kph and the engine rpms are a little to high for my liking for extended periods of time.

Hi, welcome.

But are you serious? Sounds like you need an automatic (DSG) and/or need to change the car. Are you only interested in low revs or keeping the car (and engine for a number of years). You have me totally lost, what is it you want to achieve with a modern 3-cylinder 1.0 turbo engine'd car?

@nta16 a n/a 1.0 3 cylinder engine. No turbo it is not a TSI.

Sorry, it clearly has in your thread title 1.0 MPI. My old brain got confused again.

I am still not sure what you are trying to achieve. You put 3rd and 4th gear are useless does this mean normally there is only you in this car and the car is not loaded and you do town/city driving as well as motorway.

Just because you can drive at 60kph (37 mph) in 5th does not mean you have to, my wife might do this for a while in her 1.2 (TSI, turbo 5-speed manual) much to my distress and used to be in 5th when she had a 559 cc (0.56 litre) car (but it was lighter than the heavy VW products of today).

If 3rd and 4th are really useless then you can go from 2nd to 5th and if 110-120 kph (68-75 mph) is too high revs what revs do you want to drive at and why, what is the power band of your engine, peak torque to power.

I drove a 1.0 TSI turbo 6-speed manual with drive modes and in eco the revs were very low at "recommended" (on the dash) gear selection - but - the recommended gear selection is not always appropriate or best as so far the cars' computers can register many things but not very well the vehicles ahead or road conditions that why the driver still needs to actually drive the car and make the actual decisions about such things as gear selection (and revs).

You have by today's standards a lower powered (it is not in reality) car for its carrying capabilities with a heavy body (perhaps not by todays standards) so it will sometimes need higher revs to keep momentum. The 4-cylinder VW engine in my opinion have always sounded a bit rough so dropping to three cylinders (which they were not used to unlike other some other (better) manufacturers) they are not going to be the silkiest smooth particularly when maintaining higher speeds and/or revs so you get noise and vibrations.

It depends on how long you want or expect to keep a car or engine as to where you set the compromise of fuel economy to engine life.

Personally I would be either getting used to the car as it is, and often ignoring the dash gear recommendation and not worrying too much about higher revs or swap the car, possibly to a diesel for low revs (though personally I would never have a diesel).

Hope you get more responses.

Edited 6 October, 20256 Oct by nta16

This car is not that heavy, i have another, mk1 fabia and they have similar weight and similar power while the older one have a little more torque and more displacement, both weight around 1000kg, the 1.0mpi is the lightest configuration.The worst scenario for my car is two adults, two children and some luggage and for now it handles it great, if i need to haul some more weight i have another vehicles, it is solely for transporting people and for most of the time its just my wife and one child. What i want to achieve is to have lower rpm at around 120kph since i dont se any reason to go faster with this car and sitting around 4k rpm for extended period of times doesnt seem healthy for the engine imo. Adding to that, this engine seem pretty happy on 5th gear at 2000rpm which is around 60kph thats why i think 3rd and 4th gears are useless, with a little longer second gear i might as well change to 5th and dont downshift for most of my driving. It is more of a theoretical question if it is possible at all and if yes, and not with that much hassle, a thing to consider while my clutch finally gives up (200kkm and original clutch). And also little lower rpms at 90-100kph where this car spends most of its life would be nice and from what i researched so far 6 speed from 1.0 tsi have ratios that i would consider acceptable (6th gear would be used very rarely but it would be nice thing to have on a flat highway). Also i dont really bother with changing gears as the car suggest on a display, i am a driver with 15 years of professional experience and know when the car is struggling and i am almost sure that little lower rpms at higher speeds are not something this little engine wouldnt handle.

I plan to keep this car for a while and switched from a larger diesel because of poor fuel economy.

Edited 6 October, 20256 Oct by oxygenium92
Hade some thoughts to add

On 05/10/2025 at 18:10, oxygenium92 said:

engine rpms are a little to high

What speed is the car doing at 2000 & 3000 rpm in 5th gear?

The TSI engines are better on fuel economy than the MPI.

They have much higher torque and at lower revs than the MPI ones.

Thanks. AG Falco

4 hours ago, oxygenium92 said:

What i want to achieve is to have lower rpm at around 120kph

Change to a taller tyre would do this!

But this would give you slower acceleration!

My TSI 5 Speed is at 130 KMH at 3000 RPM.

Thanks. AG Falco

Weight and how heavy depends on what you are used to, comparing one VW(Škoda) with another is a bit limited and VW like heavy.

Running the engine at a consistent 4,000 rpm (once it has fully warmed up, 90+ C oil temperature) is fine, better than lugging a loaded car at below torque band (not that I know what that is on a 1.0 MPI). If 2,000 rpm in 5th is in the torque band that is fair enough and if this can be sustained in a loaded (to your requirements) car uphill or on your journeys that is fair enough too but you will want to give the car and engine occasional brisk runs at higher revs if you want to keep the car for a very long time and retain fuel economy and good running.

If you are a professional driver of 15 years and have put 200kkm on this 1.0 MPI then you have already done well with your use - and yes of course you can change transmission but what else is involved and the cost of it all is a different matter, you might get more and better information about the change from the 'Fabia projects' and 'Performance & Tuning Upgrades' forums where members are more used to changing to different transmissions.

https://www.briskoda.net/forums/forum/205-fabia-projects/

https://www.briskoda.net/forums/forum/212-performance-tuning-upgrades/

You may also want to try a test drive of a 1.0 Mk3 Fabia (or similar VW group model) with a 6-speed gearbox and perhaps another with a DSG gearbox to see if buying a used version of those cars might satisfy your wants or give you some idea, even if not MPI engine.

I don't suppose you would consider looking at a different an entirely different make and model of car (not VW lot or other German manufacturer) and I have no idea of what is available at what costs in Poland

HTH. Good luck with whatever you decide.

Given that Skoda chose to fit the 6-speed into the 110PS TSI - with the 95PS TSI only getting the 5-speed, I'm not convinced that what you propose is particularly practical.

Extra gears usually serve to allow closer ratios between gears - not necessarily to give a taller final gear ratio.

AFAIK, even 5th in a 5-speed box gives you a small overdrive ratio. (less than 1-1)

I've never owned or even driven a VW 1.0mpi but I have great respect for it from some of the consumption claims in the Briskoda Citigo section.

The power figure of 75ps at 6200 rpm is respectable although not unremarkable as is the torque figure of 95Nm but the kicker is that maximum torque is achieved at a comparatively low 3000 rpm and I think that is almost unique for its size and type.

Not many engines, regardless of size, could match that and small capacity engines usually produce their max torque at 4000+ rpm, like my 22yo 1.3L Toyota requires 4400 rpm. Having extoled its virtues, it is still only a normally aspirated 1 litre engine and you can't expect too much of it.

I can't find much on the web about performance of the 1.0mpi but there were figures that said acceleration from 80 to 120 kph was 31 seconds in 5th gear and 20 seconds in 4th gear.

To me that suggests the manufacturer's gearing is (not surprisingly) about optimal and that a longer top gear is likely to worsen performance and consumption.

I have driven a more powerful 1.0tsi Fabia manual and was extremely impressed by consumption and ability to cruise economically at highway speeds, with a load, at sub 3k rpm. That would be my choice if looking for a better balance than you currently have.

Like others, I see little point in all the work and expense involved for an extra gear and a potentially less satisfying car.