[Zinedine]

Just want to share my current situation with you all.

I've been using the iX 40 since September 2022. Throughout my ownership I've been getting the expected range of around 400km per charge on 100% soc.
I rarely ever charge it up to 100% though, maybe just 5 times a year or so.
Lowest range I would get would be in the summer, around 380km. That's because summers here are very hot, around 50 degrees Celsius. So AC would always be on max. Except night driving (which i rarely do) it would be on medium fan speed.

I would get the best range during winters, around 430-440km.
Winters here are around 17 degrees celcius. (at early hours like 3am, it will be around 12 degrees, but i never drive at that time). immediately after sunrise, around 7am, it goes up to 15+ degrees.

These numbers are all while being in personal mode mostly. I would occasionally switch to efficient mode just to check if anything changes. but barely any difference in range was noticed.

This year though I have been getting very low range starting around September. and its been getting worse week by week.
Currently on 100% soc, I get a range of 340km, (with the AC off and on efficient mode.)
This happened gradually.
A month ago i used to get 380km, then went down to 360km etc.

Anyways I have felt the sudden drop in range and effected my charging habits. I need to charge much more frequently per week compared to last year.

I understand its the opposite in the USA or Europe where in winter you guys have the worst range. But our winter never gets that cold and our winter is basically the ideal temperature for the battery as far as I know.

Currently the car is at the workshop, waiting for feedback from Germany head office if they can do anything about this.
I just hope they don't release the car back to me and say its normal.

[M60Cruiser]

My range in my M60 I bought new being an aggressive driver has never been great.
I now charge it to 90% instead of 80 and get 180 miles (288 km) in the winter and 210 miles (336 km) in the summer.
at 8-9 cents a kw/hr charging at home is so cheap that I got over the range.

[Zinedine]

Originally Posted by M60Cruiser

My range in my M60 I bought new being an aggressive driver has never been great.
I now charge it to 90% instead of 80 and get 180 miles (288 km) in the winter and 210 miles (336 km) in the summer.
at 8-9 cents a kw/hr charging at home is so cheap that I got over the range.

I also always charge at home and it's not really about the cost rather than the convenience of having that extra 100km that I lost, especially on days I do longer journies and not having range anxiety.

It's just that I got used to a certain standard and now all of a sudden it's changing.

The range you get seems to match mine yet you have an m60, which has a larger battery. I'd assume that has to be purely due to the aggressive driving you do.

[Aalfred]

Originally Posted by Zinedine

I also always charge at home and it's not really about the cost rather than the convenience of having that extra 100km that I lost, especially on days I do longer journies and not having range anxiety.

It's just that I got used to a certain standard and now all of a sudden it's changing.

The range you get seems to match mine yet you have an m60, which has a larger battery. I'd assume that has to be purely due to the aggressive driving you do.

Was there any software update in Sept on your car? I think they can run a battery diagnostics to see how much degradation has happened but if the battery degradation is minimal, I think it could be the software update. I bought a 2025 IX and had the July software update and my ranges have not been anywhere close to what the others are getting here despite me curbing my driving habits and driving in Efficient mode all the time. Even if you account for the cold weather, my friends driving the Tesla Model Y Perf has more range on his car compared to mine by a good 20 %

[NomoTesla]

Here in the US we can go to our mygarage.bmwusa.com, click into our vehicle profile, and request a Car Data Report which will tell us the battery capacity. Granted, this is a general measure of battery health, but it will give you an approximate reading on your battery's current capacity.

Do you have similar BMW web site where you live that might offer the same option?

Also, remember that the range estimate factors in your driving style (efficiency) to give you a more accurate prediction. After application of a software update, this algorithm resets and you will likely see a lower range figure as it re-calibrates to your driving style and ambient temps.

[M60Cruiser]

Originally Posted by Zinedine

I also always charge at home and it's not really about the cost rather than the convenience of having that extra 100km that I lost, especially on days I do longer journies and not having range anxiety.

It's just that I got used to a certain standard and now all of a sudden it's changing.

The range you get seems to match mine yet you have an m60, which has a larger battery. I'd assume that has to be purely due to the aggressive driving you do.

My other car is a 2021 Tesla Model S Plaid with 1020 hp.
It is King of the Road
It has 400 more hp yet gets up to 400 km on an 80% charge with only a 10km loss at 0c.
Such a steep drop all of a sudden is unusual so maybe they will find a reason.

[NomoTesla]

Originally Posted by M60Cruiser

My other car is a 2021 Tesla Model S Plaid with 1020 hp.
It is King of the Road
It has 400 more hp yet gets up to 400 km on an 80% charge with only a 10km loss at 0c.
Such a steep drop all of a sudden is unusual so maybe they will find a reason.

Stop talking about your Plaid in a BMW forum. Nobody cares.

[M60Cruiser]

Originally Posted by NomoTesla

Stop talking about your Plaid in a BMW forum. Nobody cares.

Aalfred brought it up first

"my friends driving the Tesla Model Y Perf has more range on his car compared to mine by a good 20 %"

Are you going to scold him too?

Teslas are better than BMWs in some ways like range despite your 2013 lemon Model S experience that IMO you should have bailed on or traded in.
My Tesla also charges at 34 mph (56km) vs the BMW 24 (36km) at the same 11.5 kw rate.

[LuisBoston]

Is your efficiency changing? (kWh/km)?

[NomoTesla]

Originally Posted by M60Cruiser

Aalfred brought it up first

"my friends driving the Tesla Model Y Perf has more range on his car compared to mine by a good 20 %"

Are you going to scold him too?

Teslas are better than BMWs in some ways like range despite your 2013 lemon Model S experience that IMO you should have bailed on or traded in.
My Tesla also charges at 34 mph (60km) vs the BMW 24 (36km) at the same 11.5 kw rate.

There's a lot to unpack there. I would probably start with inadequacy issues.

[NomoTesla]

Originally Posted by LuisBoston

Is your efficiency changing? (kWh/km)?

Great point! Zinedine Can you look through your previous trips to see if there has been a change in your driving efficiency? That is an excellent place to look for clues.

[M60Cruiser]

Originally Posted by NomoTesla

There's a lot to unpack there. Let's start with inadequacy issues...

Nomo
Let's be friends


It's always fun bantering with you.
Speaking of inadequacy obviously you haven't gotten over your horror show Tesla experience from 10 years ago.
I did very well with my molding business last year.
Bought a few more million dollar presses.
And I have had zero issues with both my Tesla and the BMW.

[M60Cruiser]

Originally Posted by NomoTesla

Great point! Zinedine Can you look through your previous trips to see if there has been a change in your driving efficiency? That is an excellent place to look for clues.

Yes I agree the driving efficiency is a great place to start.

[frank70]

Originally Posted by Aalfred

Was there any software update in Sept on your car? I think they can run a battery diagnostics to see how much degradation has happened but if the battery degradation is minimal, I think it could be the software update. I bought a 2025 IX and had the July software update and my ranges have not been anywhere close to what the others are getting here despite me curbing my driving habits and driving in Efficient mode all the time. Even if you account for the cold weather, my friends driving the Tesla Model Y Perf has more range on his car compared to mine by a good 20 %

My brother has a 2024 Tesla Model Y Performance and i can tell you that the Model Y Performance has about 50 miles less range in the real world than my (and your) iX M60. In winter and in summer.

The confusing thing is likely that your friends are telling you the EPA range based indication of the range that Tesla shows in the display of the car, which is far off the real range that the car will actually have, whereas the range your BMW shows in the car and app are actually about adequate. So do not believe everything your friend tells you about his Tesla.

[M60Cruiser]

Originally Posted by frank70

My brother has a 2024 Tesla Model Y Performance and i can tell you that the Model Y Performance has about 50 miles less range in the real world than my (and your) iX M60. In winter and in summer.

The confusing thing is likely that your friends are telling you the EPA range based indication of the range that Tesla shows in the display of the car, which is far off the real range that the car will actually have, whereas the range your BMW shows in the car and app are actually about adequate. So do not believe everything your friend tells you about his Tesla.

The only real way to tell the range accuracy is to compare the odometer in the app or on the dash to the estimated range over say 1 week.

[thebishman]

Zinedine: given your ambient temps and if you aren’t recently having to deal with violent headwinds, I’m wondering if you have a bad cell in your battery lack. A full diagnostic on the pack at the dealership is the place to start imho.

[ggalanis]

Originally Posted by Aalfred

Even if you account for the cold weather, my friends driving the Tesla Model Y Perf has more range on his car compared to mine by a good 20 %

The model Y performance is not getting 20% more range than the bmw iX 50/60.

AFAIK, in the real world, the model Y gets less range than an iX 50/60. It may display it's official EPA range after you charge it up, making it seem as if it gets better range but that is not real range. BMWs approach of showing you an adjusted range number based on your recent driving and current temps is much closer to reality.

[ggalanis]

Originally Posted by M60Cruiser

yet gets up to 400 km on an 80% charge with only a 10km loss at 0c.

There is absolutely no way you lose only 10km of range between summer weather and freezing point weather. Your car might show you that number (as pointed out above, Tesla shows you EPA rated range at high SOC) but it is not based on reality. You will easily lose at least 20% of your range at 0C.

[NomoTesla]

Originally Posted by ggalanis

The model Y performance is not getting 20% more range than the bmw iX 50/60.

AFAIK, in the real world, the model Y gets less range than an iX 50/60. It may display it's official EPA range after you charge it up, making it seem as if it gets better range but that is not real range. BMWs approach of showing you an adjusted range number based on your recent driving and current temps is much closer to reality.

^^ This

Tesla's range estimate is a lie because it is based on the rarely used 5-cycle EPA test. This allows Tesla to optimize the vehicle for additional scenarios that are rare in the real world.

BMW and other makers use the EPA 2-cycle test and then compute a weighted average. This often means a lower EPA rating that is easily exceeded in the real world.

Tesla can't sell cars without purposely misleading its customers, sadly.

[Zinedine]

Thank you all for all your input.

I did take a look at my efficiency, it's been about the same all this time. I believe it sits around 21 kwh/100km.

In my country we don't have a website to check such data or get a report on battery health.
I don't even get OTA updates.

But I did have my car at the dealer some time in October complaining about the AC sync not being resolved and I believe they did a software update. (Which didn't solve the sync issue obviously)

I did ask them to run a battery diagnostic report but still didn't get confirmation if they will do so.
A friend of mine asked for one and they refused to do that for him.

But I provided them with an image showing my range in winter 2023 to prove to them that I had way better range so they look into it more seriously.

Lately all they told me they did is re-program, and did 2 test drives around 50km each, one aggressive driving and the other moderate / efficient and check the range. They told me they got 340km with the aggressive driving and 360km with efficienct driving.

Waiting now to see what's next and I'm going to ask again for that diagnostic report.

I'm afraid if it's a bad cell in the battery pack and they don't do a diagnostic report. Then they force me to take the car back saying nothing is wrong.
Just like they did with android auto not working.

The drop in range is a lot more serious than android auto not working.

[M60Cruiser]

Originally Posted by ggalanis

There is absolutely no way you lose only 10km of range between summer weather and freezing point weather. Your car might show you that number (as pointed out above, Tesla shows you EPA rated range at high SOC) but it is not based on reality. You will easily lose at least 20% of your range at 0C.

My Tesla shows 252 miles of range at 80% summer or 246 miles winter while the M60 shows 210 at 90% in the summer and 180 at 90% winter or as little as 160 miles at 80%
Obviously you are correct the range is lower but Teslas lose less of their capacity 5-10% vs 20% or more in cold weather.
Running the heaters in both cars also drops the range.
I have both cars and I get 3 days of range with the Tesla for 2 days of range from the BMW driving the same distances.
And I charge the BMW to 90% vs 80% for the Tesla.
I'll typically Level 2 charge when the cars get down to 60-80 miles left.
I'll have to compare the range and odometer numbers to see the true range sometime.
My Model S Plaid is on the 21" x 10.5/ 9.5 wheel setting which has less range than the 19" setting so it's closer to reality..

[Aalfred]

Originally Posted by M60Cruiser

My Tesla shows 252 miles of range at 80% summer or 246 miles winter while the M60 shows 210 at 90% in the summer and 180 at 90% winter or as little as 160 miles at 80%
Obviously you are correct the range is lower but Teslas lose less of their capacity 5-10% vs 20% or more in cold weather.
Running the heaters in both cars also drops the range.
I have both cars and I get 3 days of range with the Tesla for 2 days of range from the BMW driving the same distances.
And I charge the BMW to 90% vs 80% for the Tesla.
I'll typically Level 2 charge when the cars get down to 60-80 miles left.
I'll have to compare the range and odometer numbers to see the true range sometime.
My Model S Plaid is on the 21" x 10.5/ 9.5 wheel setting which has less range than the 19" setting so it's closer to reality..

I think you finally have some true comparison. Its really hard to convince the group here that someone else has a better battery tech that doesnt lose as much than BMW..and it could be the one that most of us hate...lol. Ive asked my friend the actual miles (he drives 80 miles between his house and work) and he charges every 2-3 days even in this cold weather. So thats 160-240 miles at 80-90% SOC . Compared to my IX, I drove 50 miles yesterday all in efficient mode with average speed of 65-75 mph on highways (our speed limit is 70 mph) and I was down to 60% from 95%. The amount of loss seems to be a lot more in the IX in cold weather but its been hard to convince the lot here that its true but they cant seem to come around it. To each their own