Range
Thread Starter
Junior Member
Joined: Oct 2012
Posts: 72
Likes: 24
From: Northern California
2024 EQE 350 4Matic, BMW i3
Range
In another thread, @carmichael84pbs mentioned some concerns about the accuracy of the range displayed. That's always a great topic for EVs so let's get that thread going.
Tesla grossly overstates their range. Based on my calculations in two different Model S, their predicted range was based on 275W/mi, while my driving averaged around 310-315.
The BMW i3 uses an algorithm based on the last 30 miles of driving, with a deduction whenever the air conditioning is on. As a result the estimated range varies quite a bit. It's a much smaller / lighter car (though with horrible aerodynamics) and averages more like 230 W/mi (4.2 mi/kWh)
The EQE seems to be using some sort of algorithm to predict range based on recent driving experience as opposed to a constant like Tesla. On a recent road trip which was mostly freeway driving with the air conditioning on, I was pleasantly surprised to see consumption in the 280-290 W/mi range. On the return trip of 287 miles, including a descent from 4,000' to sea level (with ups/downs), AC on and freeway driving, I averaged 270 W/mi (or 3.7m/kWh).
Over 10,000 miles of driving I've averaged 3.2 mpkWh or 312 Wh/mi which puts it on par with the Tesla Model S. I think this means that Tesla has no advantage in engine / systems efficiency.
FWIW, all of the above is using strong regen.
Tesla grossly overstates their range. Based on my calculations in two different Model S, their predicted range was based on 275W/mi, while my driving averaged around 310-315.
The BMW i3 uses an algorithm based on the last 30 miles of driving, with a deduction whenever the air conditioning is on. As a result the estimated range varies quite a bit. It's a much smaller / lighter car (though with horrible aerodynamics) and averages more like 230 W/mi (4.2 mi/kWh)
The EQE seems to be using some sort of algorithm to predict range based on recent driving experience as opposed to a constant like Tesla. On a recent road trip which was mostly freeway driving with the air conditioning on, I was pleasantly surprised to see consumption in the 280-290 W/mi range. On the return trip of 287 miles, including a descent from 4,000' to sea level (with ups/downs), AC on and freeway driving, I averaged 270 W/mi (or 3.7m/kWh).
Over 10,000 miles of driving I've averaged 3.2 mpkWh or 312 Wh/mi which puts it on par with the Tesla Model S. I think this means that Tesla has no advantage in engine / systems efficiency.
FWIW, all of the above is using strong regen.
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Joined: Apr 2025
Posts: 13
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From: Florida
2025 EQE SUV
In another thread, @carmichael84pbs mentioned some concerns about the accuracy of the range displayed. That's always a great topic for EVs so let's get that thread going.
Tesla grossly overstates their range. Based on my calculations in two different Model S, their predicted range was based on 275W/mi, while my driving averaged around 310-315.
The BMW i3 uses an algorithm based on the last 30 miles of driving, with a deduction whenever the air conditioning is on. As a result the estimated range varies quite a bit. It's a much smaller / lighter car (though with horrible aerodynamics) and averages more like 230 W/mi (4.2 mi/kWh)
The EQE seems to be using some sort of algorithm to predict range based on recent driving experience as opposed to a constant like Tesla. On a recent road trip which was mostly freeway driving with the air conditioning on, I was pleasantly surprised to see consumption in the 280-290 W/mi range. On the return trip of 287 miles, including a descent from 4,000' to sea level (with ups/downs), AC on and freeway driving, I averaged 270 W/mi (or 3.7m/kWh).
Over 10,000 miles of driving I've averaged 3.2 mpkWh or 312 Wh/mi which puts it on par with the Tesla Model S. I think this means that Tesla has no advantage in engine / systems efficiency.
FWIW, all of the above is using strong regen.
Tesla grossly overstates their range. Based on my calculations in two different Model S, their predicted range was based on 275W/mi, while my driving averaged around 310-315.
The BMW i3 uses an algorithm based on the last 30 miles of driving, with a deduction whenever the air conditioning is on. As a result the estimated range varies quite a bit. It's a much smaller / lighter car (though with horrible aerodynamics) and averages more like 230 W/mi (4.2 mi/kWh)
The EQE seems to be using some sort of algorithm to predict range based on recent driving experience as opposed to a constant like Tesla. On a recent road trip which was mostly freeway driving with the air conditioning on, I was pleasantly surprised to see consumption in the 280-290 W/mi range. On the return trip of 287 miles, including a descent from 4,000' to sea level (with ups/downs), AC on and freeway driving, I averaged 270 W/mi (or 3.7m/kWh).
Over 10,000 miles of driving I've averaged 3.2 mpkWh or 312 Wh/mi which puts it on par with the Tesla Model S. I think this means that Tesla has no advantage in engine / systems efficiency.
FWIW, all of the above is using strong regen.
Do you have creep mode activated or deactivated, while in strong recuperation mode?
Thread Starter
Junior Member
Joined: Oct 2012
Posts: 72
Likes: 24
From: Northern California
2024 EQE 350 4Matic, BMW i3
