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Abarth 500e Drive Mode Issue

377 views 17 replies 4 participants last post by  Electric Tire Shredder  
#1 ·
I’ve had my Abarth 500e for just over a year now, and shortly after getting it I raised an issue with the drive modes that has still not been resolved.

The problem is with regenerative braking/one pedal driving in Street mode. In Turismo mode regen works as expected, but in Street mode there is none at all. As far as I can determine, Track and Street Mode are identical. The car is fully usable…but can only be used in full track mode, or ‘eco’ mode and nothing in between.

The dealer gathered diagnostic data early on and passed it to FIAT technical, who confirmed that the firmware was the correct version. Reflashing was not an option apparently. The dealer then pursued the ABS module as a possible cause, attempting to replace it twice, but both attempts failed (they could not get the new ABS modules to work) and the problem remained.
As the year anniversary approached I started looking at other options but then unexpectedly a new batch of cars was announced in New Zealand. When that happened, I told the dealer that they needed to replace the vehicle under warranty. In New Zealand Consumer legislation would certainly require repair or replacement if the dealer/importer did not do so under warranty. The dealer had discussions with the FIAT NZ importer and came back with notice that the factory will release a new software version within the next week that may finally address it.

The software update is apparently not a VIN specific update…but a general update that will permit the regen mode to be modified or fixed. If the fault is in the PEB or EVCU I would suspect it will be hardware…something is not outputting the correct Street Regen signal to the Automatic Braking System. If the end result is the same drive mode / functions as other Abarth’s then there will be no issue. On the other hand, if the ‘turismo’ drive mode settings are effectively moved to the Street mode with the same throttle response and lower power mode…that will definitely be a problem. I have told the dealer if the drive mode software fix appears to be inconsistent I will need to compare with one of the new cars. If it is not identical they will replace the vehicle.

I’d be interested to know if anyone else with an Abarth 500e or standard 500e has experienced the same drive mode issue, and whether a software update or another fix resolved it.
 
#3 ·
Drive modes of an Abarth 500e are unique to that model, or at least their naming is.
Apparently it's only the naming that's different, with the sole exception of the top speed value in Sherpa (Turismo):

Driving Modes Chart (click here).

Sorry I still haven't confirmed that throttle response is different in Normal (Track), since I nearly never drive in that mode.
 
#5 ·
As you noted, there are two differences between Street/Range & Track/Normal: Regen & creep.

Track = Normal (Choice of creep or hold 'n go. No 1-pedal driving)
Street = Range (No creep. Hold 'n go only. 1-pedal driving brings it to a complete stop when the pedal is released)
Turismo = Sherpa (Same as Street/Range but top speed limit, & it turns climate off)

There's definitely something wrong if your Street/Range mode has creep available, & no 1-pedal driving. Like you said, it seems exactly like your car is completely missing that drive mode.
 
#6 ·
thanks...in the drive mode chart from your linked post...is the amount of Regen or automatic braking the same in both modes? I thought that the street or range mode had less aggressive one pedal braking than Turismo or sherpa. The one pedal drive mode is pretty good compared to the limited other EV's I have driven...BYD and I also tested the Smart #1 Brabus a few weeks ago. Even when set to high levels of regen it is fairly weak compared the the Fiat.
 
#7 ·
I agree the 500e 1-pedal mode is better than that of other EVs I've driven, but I'd still prefer it even stronger. Driving normally without traffic I still have to use the brake pedal.

I haven't really done an actual test, but I believe in the 500e it's the same in both of the settings which provide it. (Street/Range & Turismo/Sherpa)

I just realized that assuming I'm right about that, then as long as you're driving 150kph or less, eAbarth Turismo mode is identical to 500e Range mode, once you turn the Abarth's climate back on. Let me know if that didn't make sense.
 
#9 ·
Driving normally without traffic I still have to use the brake pedal.
I drive almost exclusively in 'Range" and very rarely need to touch the brake pedal. Only needing to if something unexpected happens.
People have different 'normals', I guess. Likely my tyres last longer than ETS', if he lives up to his name.

I do use 'Normal' for slow manoeuvring as 'Range' can then be jerky.
Sherpa I use only on those occasions I've let the battery get very low, but I believe it only improves m/kWh versus driving gently in other modes because A/C is off, unless switched back only manually.
It is supposition that the Abarth's software in Track equates exactly to the standard 500e's Normal, Street to Range and Turismo to Sherpa.
 
#8 ·
Thanks for that, I have something to go on there.
In Turismo mode I rarely have to touch the brake pedal in mine...even when driving a bit faster than I should really. If a traffic light turns yellow it can usually stop without touching the brakes...or at most only in the last few meters. If I could turn it up a notch it would be a good option...but the level/strength is pretty good otherwise.

As for the climate mode...I don't think the Abarth has any climate control/drive mode integration...it seems to remember the last setting when the car is started next regardless of drive mode.
When switching the modes the predicted range will drop by 10km or so between Street and turismo.
 
#10 ·
Agreed on all counts.

I'm normally in a hurry, so I tend to brake late for stopsigns when there's no traffic, & the 1-pedal isn't quite strong enough for that, or for driving I guess a bit faster than @Dmrit when a light goes yellow. Other than that it's pretty much perfect. Much better than my friend's eKona where I always have to pull the steering wheel paddle to get the same effect.
 
#11 ·
Like Andy, I drive in Range (Street) & use Normal (Track) for parking, although even that is a bit jerky due to poor brake pedal calibration.

I never use Sherpa (Turismo) since like Andy says, you can mimic it yourself in the other modes. I have tested switching it on, just to prove the YouTubers wrong who said "I can't use it cuz I need A/C". It always turns climate off but then I can turn it back on & stay in Sherpa/Turismo....
 
#13 ·
No, the main issue is that the power is reduced in Turismo to 100kw...in Street and Track it is 113kw. The power flow shows it as capped at 100kw in turismo...and I do see it hit 114kw in Track.
It is mainly the reduced throttle response makes it feel a little toned down. The throttle also has a noticeable step between 3/4 and full throttle which isn't the greatest for drive-ability (or traction at times).
 
#14 ·
I think I understand:

When your Street/Range mode doesn't work, so you're in Turismo/Sherpa mode for 1-pedal driving, max power is 100kW unless you floor it past the "step", at which point it instantly adds 14% more power :oops:. Right?

btw, everyone in North America is envious right now, because ours are limited to 87kW at all times. I believe that's just the software, but I haven't heard of anyone hacking it (yet :devilish:).
 
#15 ·
It is limited to 100kw total in Turismo mode....it is just the throttle mapping to throttle position...so instead of a straight incrementing line from zero throttle to 100% the first 3/4 of throttle travel is maybe only 50 or 60%. Then when it hits the point around 3/4 throttle the power increase is steeper. At least that is what it feels like to me. Sort of like a peaky 2 stroke with a steep power curve.

I'm not sure on the logic of why Stellantis wouldn't bring the Abarth to NA. It was pretty overpriced for the market compared to the standard 500e but I would have thought there would be more people willing to pay the sticker price in North America. The standard 500e is already marginal for US market range expectations so the more limited range of the Abarth may have been a factor.