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2022 EQS 450+
22k miles
3/29/22 purchase date
Replaced OEM Pirelli performance tires in April at 18,500 miles with Goodyear non-performance tires
I have had a noticeable drop in mileage at 100% in the last month. Used to knock out 425-450 at 100% but now getting only 360-375 at 100%
Anyone else having this issue? Any thoughts about tire change to non-performance?
Here in Pennsylvania temperatures have dropped considerably in the last six weeks. In the middle of Summer, in my EQS SUV, I was seeing an estimated range of 395 miles at 100% SoC. A couple of weeks ago it dropped to 360 miles and today it's 301. This is all with the same Goodyear Eagle Touring A/S 21" tires.
2022 EQS 450+
22k miles
3/29/22 purchase date
Replaced OEM Pirelli performance tires in April at 18,500 miles with Goodyear non-performance tires
I have had a noticeable drop in mileage at 100% in the last month. Used to knock out 425-450 at 100% but now getting only 360-375 at 100%
Anyone else having this issue? Any thoughts about tire change to non-performance?
Thanks for all comments
Has absolutely nothing to do with Degradation or tires.
Has everything with your driving history recently.
I have the Goodyear F1 Asymmetric 5's on my 450+. I'm getting 375-380 at 80%. I rarely charge to 100%. But those numbers drop significantly in Winter if the temps drop to the 50's, or if I drive in a very spirited fashion. Lots of factors impact mileage in these cars.
Mileage has everything to do with tire type and tire degradation on electric vehicles in general. You are talking about rolling resistance which plays a tremendous role in electric vehicles. Performance tires that are electric spec have far better rolling resistance then all seasons(even electric spec). Further, if the Goodyear's are run flats expect another 5%-7% loss of mileage. Anecdotally I went from all season Pirelli run flats to Pirelli performance electric spec. and my mileage went up a solid 10%. on my EQS 580
2022 EQS 450+
22k miles
3/29/22 purchase date
Replaced OEM Pirelli performance tires in April at 18,500 miles with Goodyear non-performance tires
I have had a noticeable drop in mileage at 100% in the last month. Used to knock out 425-450 at 100% but now getting only 360-375 at 100%
Anyone else having this issue? Any thoughts about tire change to non-performance?
Thanks for all comments
I've had some form of EV since 2013. There is a lot of variation in range based on weather, tires, driving speed, etc. If you are new to EV's and live in a cold climate, you are going to find your mileage getting reduced very substantially in the winter. The car's guessed range at full charge is just that--a guess based on what was happening previously. IMHO, the EQS has good enough range to make the ups and downs of stated range to be a non issue. You might have to charge longer in the dead of winter to make a 5 hour trip, but it's just no big deal. Winter was a little more challenging with my Jaguar I Pace, when the summer range of about 225 dropped to 165 on the coldest days. But the EQS has more range to begin with, so makes it good enough for my needs.
I have a 2022 Mercedes EQS450+. I used to get 416 miles at 100% charge; I have noticed the charge dropping to 308 miles at 100% charge when I am driving for at least 3 hours. This is an ongoing occurrence when I am driving long distances. I have brought this concern up with the dealership; not sure that they understand the problem. They indicated that they did software updates and road test and said the car is running according to specs. They also said that the range decreases based on the way the car is driven; I told them that I understand that and it’s not the range I am talking about but rather the battery capacity (to hold charge). This really is frustrating!
Last edited by Chet Uma; Oct 24, 2024 at 09:20 PM.
Just to be clear you used to get 416 miles and now get 308 miles going the same route, at the same speed, with the same wind conditions, same ambient temperature, same cabin temperature with the same tires inflated to the same level?
I use the Recurrent Auto dongle to monitor my battery health. It's telling me that three years from now i will lose only four miles of range based on the last year and 20,000 miles of driving.
Just to be clear you used to get 416 miles and now get 308 miles going the same route, at the same speed, with the same wind conditions, same ambient temperature, same cabin temperature with the same tires inflated to the same level?
Sounds like the car’s range estimate is lower. No mention of what the car is actually achieving.
Just to be clear you used to get 416 miles and now get 308 miles going the same route, at the same speed, with the same wind conditions, same ambient temperature, same cabin temperature with the same tires inflated to the same level?
That is correct. Same route, same speed and same weather conditions, same ambient and cabin temperature, tires inflated per specs. See attached pictures.
While my 580 SUV has never seen freezing temperatures, Recurrent Auto telemetry says I should only lose 10% at 32F. This is much better than my previous e-tron.
That is correct. Same route, same speed and same weather conditions, same ambient and cabin temperature, tires inflated per specs. See attached pictures.
Still not apples to apples. Need to show both with the battery topped up and same prior driving history.
I don't really understand my wife's EV range estimation algorithm but it tends to be optimistic prior to us going to visit her mom 90 miles from home which is all highway and has a I suspect slight elevation increase getting there. I know that she always has big efficiency numbers on the way home from work because it is largely downhill. So I think that may enter into it posting an optimistic range when we set off.
I don't really understand my wife's EV range estimation algorithm but it tends to be optimistic prior to us going to visit her mom 90 miles from home which is all highway and has a I suspect slight elevation increase getting there. I know that she always has big efficiency numbers on the way home from work because it is largely downhill. So I think that may enter into it posting an optimistic range when we set off.
I drive 24 miles to the golf course 5 days a week, and back. The course is about 800ft higher in elevation than my house in San Antonio. I average 3.4-3.5 mkWh going, and 4.7-5.0 mpkWh returning consistently. Elevation change is the only variable, as traffic and speed are usually similar. Elevation makes a huge difference, IMHO.
I drive 24 miles to the golf course 5 days a week, and back. The course is about 800ft higher in elevation than my house in San Antonio. I average 3.4-3.5 mkWh going, and 4.7-5.0 mpkWh returning consistently. Elevation change is the only variable, as traffic and speed are usually similar. Elevation makes a huge difference, IMHO.
If you recall I did the math on that to show that was the case.
The average of your numbers are great for a car as heavy as yours.
Working from memory my wife might get 3.5 going to work and over 5 coming home and of course it is generally colder in the morning.
Here in Pennsylvania temperatures have dropped considerably in the last six weeks. In the middle of Summer, in my EQS SUV, I was seeing an estimated range of 395 miles at 100% SoC. A couple of weeks ago it dropped to 360 miles and today it's 301. This is all with the same Goodyear Eagle Touring A/S 21" tires.
Similar drops here in Michigan with temp drop more than anything nefarious with the battery degradation.
Not arguing with your fundamental point as I don't believe OP has a battery degradation issue however as he stated he is in SoCal where the seasonal temperature change is significantly less than in Michigan
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