General Doubts on twinair 105

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General Doubts on twinair 105

Same here - got my TA new and didn't notice any change in performance or economy as the miles increased.
 
That's very strange. Some people did notice a performance difference and some didn't. A summary:
TA's are VERY tight and grumbly when new. Mine took until about 12k miles and an oil change to feel right and it's totally different now compared to when new.
but the OP's twin air will be VERY tight at on 400 K,
it'll take 10 THOUSAND km to free off fully (y)
The TA does take quite a while to free up.
The first time I noticed that the TwinAir in my current 500 was awakening, was also the first time I heard its loud TwinAir "growl", as if the "beast" was finally unleashed. Unfortunately I didn't pay attention to the odometer reading at that moment, but I think it was already beyond 1000 km.
To me my TA85 drives the same now (at ~3500 km) as it did the day I bought it, brand new.
Same here - got my TA new and didn't notice any change in performance or economy as the miles increased.
What could be the cause of these opposite observations?
 
definitely a huge difference in Eco mode once run in fully, normal mode I would say is also more responsive but without a doubt considerably smoother and more flexible. Mine is a Euro 6 running on 0W30 so maybe it has different running in charachteristics. Seems a tad more economical too particularly after an oil change at 10K.
 
From my perspective, our late 2012 built TA 85 is much better now it's got 12k on it. When it was new, mpg wasn't particularly great, averaged around 42 mpg. Now, 47 mpg is the norm with A/C running all the time. Huge performance difference too when ECO is off, the car absolutely flies along, but ECO is almost always 'on' so we're bound to notice the difference when ECO is 'off'. It'll be interesting to see in a few weeks time after the second service, new oil, new plugs etc, if they'll be any further improvement.
 
What could be the cause of these opposite observations?

It's normal, cars "loosen up" and improve in fuel economy once "run in". I don't think it's because FIAT deliberately restricts engine performance for the first x km though.

I don't feel my car is more powerful now but my fuel economy is definitely getting better as the odometer ticks on. Maybe the car's ECU learning our driving styles has a part to play as well.
YMMV and all that.
 
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The car has now around 800kms and its consuming about 7 l/km or 40 mpg.

These it’s a mix of commuting and city, whole time in sport mode. Also going a couple of times to the some nice mountain routes, and driving quite happy all the time, so I think the car it’s very little thirsty and can go very low if driving it as my grandma!

Also I have to say that I’m starting to get used to the engine, and its driving. But still thinking the voids at some rev are because some freaky chip configuration to cope with emission standards, I fell that if you drive without the Esp and so, the engine works more "clear" with less electronic buging.

Will be nice to find and test some alternative mappings, or any little stuff it helps to be more responsive at low RPMs, so any advice wellcome ;)

Thanks all for the replies!!!

havefun
 
But still thinking the voids at some rev are because some freaky chip configuration to cope with emission standards
Be thankful that FIAT didn't put much effort in reducing the CO2 emission of the TA105. In my country FIAT sells the much heavier Punto with TA100 and an impressive 88 g/km CO2 emission. Compared with that the 99 g/km CO2 emission of the 500 with TA105 seems ridiculously high.

I fell that if you drive without the Esp and so, the engine works more "clear" with less electronic buging.
Do you notice ESC (that is how FIAT calls ESP) when driving normally? What do you mean with "and so"?
 
Sorry I ment the ASR button Off, wich i think it is:
ASR, MSR, ABS, EBD,ESP, HH
 
My missus bought a 105 500S brand new in February and it displayed this hesitancy in both sport & eco. I thought it just needed running in. It's now done over 2K miles and it still displays this hesitancy at low revs.


I'm sure it's not the good old fashioned turbo lag. For example when idling if you tap the throttle very lightly and quickly the engine acts weird as if it's about to stall but doesn't


She normally fills the car completely (at Tesco) every re-fuel, but recently I just stuck £10 in at the local garage and after that it went brilliantly. Night and day difference. It felt like it had been re-mapped. So she filled up completely at the exact same 95 RON pump but the hesitancy is back. I'm wondering if when I put the tenner in they had 98 RON in their tanks by mistake. Anyone else tried super unleaded in the 105 TA?
 
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My missus bought a 105 500S brand new in February and it displayed this hesitancy in both sport & eco. I thought it just needed running in. It's now done over 2K miles and it still displays this hesitancy at low revs.


I'm sure it's not the good old fashioned turbo lag. For example when idling if you tap the throttle very lightly and quickly the engine acts weird as if it's about to stall but doesn't


She normally fills the car completely (at Tesco) every re-fuel, but recently I just stuck £10 in at the local garage and after that it went brilliantly. Night and day difference. It felt like it had been re-mapped. So she filled up completely at the exact same 95 RON pump but the hesitancy is back. I'm wondering if when I put the tenner in they had 98 RON in their tanks by mistake. Anyone else tried super unleaded in the 105 TA?

Try a partial fill again. Could be a fuel tank breather issue.
 
My missus bought a 105 500S brand new in February and it displayed this hesitancy in both sport & eco. I thought it just needed running in. It's now done over 2K miles and it still displays this hesitancy at low revs.


I'm sure it's not the good old fashioned turbo lag. For example when idling if you tap the throttle very lightly and quickly the engine acts weird as if it's about to stall but doesn't


She normally fills the car completely (at Tesco) every re-fuel, but recently I just stuck £10 in at the local garage and after that it went brilliantly. Night and day difference. It felt like it had been re-mapped. So she filled up completely at the exact same 95 RON pump but the hesitancy is back. I'm wondering if when I put the tenner in they had 98 RON in their tanks by mistake. Anyone else tried super unleaded in the 105 TA?


I've never driven a 105 but have a normal 85, I've read that the 105 has all the characteristics of the 85 but the quirks are exaggerated so maybe it's behaving normally as such and you need to get used to it ( I'm sounding like a fiat dealer now lol) but 2k is still very low mileage, mine really only loosened up at around 12k and an oil change. Might be an idea to pop in to a dealer and test drive another 105 and see if it's any different, maybe it does have a fault. Re petrol, I recently changed garage/supplier and noticed the car is much smoother and grumbles along happily now at very low revs in 5th, it's still 95 RON fuel so maybe there's less ethanol added but it's definitely smoother but not necessarily any quicker, it has 15k miles up now. I think it's worth spending the extra few cents on decent benzine for a TA!
 
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I have an 85HP TwinAir now 15 months old and 13,000 miles.

I remember the disappointing spluttering at low revs in second gear, lack of torque and revs limited to around 5000 when I first got it. I abandoned Eco mode for all but town driving as on the open road, the lack of acceleration and having to change down on not very steep inclines when below 50 mph meant it just slowed down with your foot down in fifth in eco instead of maintaining speed.

It's now running better than ever - 52 mph on average, when in the high forties to start with. It still gets some getting used to having to change to first at most junctions as it won't pull away safely in second at under 5mph.

Revs are limited to around 5,750 rpm now.
 
Try a partial fill again. Could be a fuel tank breather issue.


Many thanks. I did wonder if she was tightening the fuel cap properly (so it clicks). Did so on that tenners worth, so thought that might be a solution also. However repeated this on the next full tank which made no difference. But I see what you mean about breather issues

I've never driven a 105 but have a normal 85, I've read that the 105 has all the characteristics of the 85 but the quirks are exaggerated so maybe it's behaving normally as such and you need to get used to it ( I'm sounding like a fiat dealer now lol) but 2k is still very low mileage, mine really only loosened up at around 12k and an oil change. Might be an idea to pop in to a dealer and test drive another 105 and see if it's any different, maybe it does have a fault. Re petrol, I recently changed garage/supplier and noticed the car is much smoother and grumbles along happily now at very low revs in 5th, it's still 95 RON fuel so maybe there's less ethanol added but it's definitely smoother but not necessarily any quicker, it has 15k miles up now. I think it's worth spending the extra few cents on decent benzine for a TA!


That's my next step. To go to the dealer and drive another one - maybe a used one with some extra miles on it. I'm fretting over this but my missus doesn't know what all the fuss is about :)

I have an 85HP TwinAir now 15 months old and 13,000 miles.

I remember the disappointing spluttering at low revs in second gear, lack of torque and revs limited to around 5000 when I first got it. I abandoned Eco mode for all but town driving as on the open road, the lack of acceleration and having to change down on not very steep inclines when below 50 mph meant it just slowed down with your foot down in fifth in eco instead of maintaining speed.

It's now running better than ever - 52 mph on average, when in the high forties to start with. It still gets some getting used to having to change to first at most junctions as it won't pull away safely in second at under 5mph.

Revs are limited to around 5,750 rpm now.


Many thanks that's encouraging but requires patience which I'm a bit rubbish at :)
 
Many thanks all for your suggestions, really, really helpful. It's very much appreciated. I was beginning to think that maybe it's the normal characteristics for this car and that I was expecting too much from a 105 (even though that's the same output as the old XR3i and the original 205GTi albeit they were much lighter) but that one occasion where it went really well has stumped me now


I'm used to frequenting Audi forums for my car, where most people are very helpful also BUT some of them, wow, mention the wrong thing and it's bloody war
 
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Try a partial fill again. Could be a fuel tank breather issue.

Interesting, I noticed on my current tank from the new garage that the car dident seem as lively after I filled it up but as the tank emptied down it seemed to improve (yes i know it gets lighter!) Could be completely my imagination though. How does the tank breath - through the filler cap?
 
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