Noob member and owner of a brand new EQA 250+

[mercurialbenz]

Morning all

I have been a MB owner for a few years however new here

Recently purchased a brand new EQA 250+ which I love.

When I picked up the EQA 250+ from the dealership it was 100% charged & the actual driving range not total range was showing as 320 miles.

I have since charged it to 80% couple of times & it used to show an actual range of 280 miles. However since Sunday the actual range for 80% charge has dropped significantly & is only showing around 180 miles. So I ran a test this morning & charged it to 100%, the actual range is now showing as 234 miles which is a significant drop from 320 miles on the previous 100% charge.

It is not even biting cold yet so am not expecting 30% drop in battery range on a brand new car. Could anyone please advise what is causing this drop?

Cheers

 

[markjay]

Welcome.

It's called GOM - Guess-O-Meter - for a reason.....

The real life range can fluctuate by up to 50% above or below the official WLTP, depending on a range of factors.

Check your average miles-per-kWh stats for the previous journeys. That's how the GOM calculates the remaining range.

Around 3-4 m/kWh is average. 1-2 is poor. 5-6 is great.

The figure will be worse if you drive on fast roads, and if going uphill. It will be better in slow traffic in town.

And there's also the car's load to consider, driving style, tyre air pressures, and the cars computer configuration (max regen, eco, etc)..

 

[MikeInWimbledon]

Prediction is all about past performance.

What kind of driving have you done this week?

If you’ve been driving at 70 on motorways, or generally just been enjoying the acceleration, the forecast range will dive. Ditto if the air con has been labouring away to warm the car first thing

If you’ve been bumbling around town, the forecast range will rise.

Nothing specific to MB, it’s an EV thing

 

[pioneercollector]

Yep! as per above.... even our new vans have dropped by 20% in the last week or so due to the damper chillier weather - Just an EV thing .... you get used to it after a decade of using EV's

 

[mercurialbenz]

Thanks all....not very reassuring I must admit and the GOM concept was not sold to me by the dealer..... I can only imagine why!

I did make a round trip from London to Manchester over the weekend and was pretty much on the 70s for most of the stretch. I also did a rapid charge on one of the GridServes enroute, and I by the time I got back the battery was less than 10%, so was wondering whether there was an off-chance that somehow damaged the battery.

But that is an outlier as most of my driving shall be fairly local town driving, so shall keep an eye on that GOM!

Also, I am going to speak to the dealer and see what they have to say about it.

 

[MikeInWimbledon]

Thanks all....not very reassuring I must admit and the GOM concept was not sold to me by the dealer..... I can only imagine why!

I did make a round trip from London to Manchester over the weekend and was pretty much on the 70s for most of the stretch. I also did a rapid charge on one of the GridServes enroute, and I by the time I got back the battery was less than 10%, so was wondering whether there was an off-chance that somehow damaged the battery.

But that is an outlier as most of my driving shall be fairly local town driving, so shall keep an eye on that GOM!

Also, I am going to speak to the dealer and see what they have to say about it.

You won’t “damage the battery” by running it down to 10%. Ignore any geriatrics who may be giving that advice.

Before taking the baseball bat to the MB salesman, who can’t do anything anyway, give the car a chance and see how it performs in more “normal running.”

In petrol terms what matters is average mpg in use, not whether your AMG does 9mpg on the one mile school run on Winter mornings or 20mpg at 100mph on the M4

 

[Bobby Dazzler]

Morning all

I have been a MB owner for a few years however new here

Recently purchased a brand new EQA 250+ which I love.

When I picked up the EQA 250+ from the dealership it was 100% charged & the actual driving range not total range was showing as 320 miles.

I have since charged it to 80% couple of times & it used to show an actual range of 280 miles. However since Sunday the actual range for 80% charge has dropped significantly & is only showing around 180 miles. So I ran a test this morning & charged it to 100%, the actual range is now showing as 234 miles which is a significant drop from 320 miles on the previous 100% charge.

It is not even biting cold yet so am not expecting 30% drop in battery range on a brand new car. Could anyone please advise what is causing this drop?

Cheers

Was it a brand new car? If so then the car would have almost zero real world data upon which to base its range estimate, because it hadn’t been used. I suspect it therefore defaults to the published range until has sufficient data to provide an estimate based upon use.

Have you only charged it to 100% once yourself? If so then the first 100% charge - before you collected it - would have shown the default range as mentioned above. By the time you had charged it to 100% yourself you had already used it and charged it several times. The estimated range was based upon the way you had recently driven the car.

 

[Bobby Dazzler]

I really wouldn’t worry about it just yet. Get a few “normal” miles under your belt on journeys you do regularly, and in traffic conditions you would usually drive in, and make a note of the consumption at the end of the journey.

Monitor consumption, as you may find that as you adjust to driving an EV then your consumption will change over time. However donnt be concerned if it goes down first as your use of lights and air conditioning will increase at this time of year.

Just like a petrol or diesel, don’t expect to achieve the published consumption figures, nor to achieve the same consumption on every journey, even if the route and time of day is the same, there will be natural variation in what you achieve.

Enjoy your new car and keep posting with how you’re getting on.

 

[markjay]

Mistreating the battery in any way is obviously not a good idea, but we're talking about cumulative danage, not a one off failure. If you keep allowing the battery to run down below 10%, then you'll be acceleration it's degradation, but doing it just once will have no noticeable effect on its performance on range.

The most likely reason for the range going down is the previous motorway driving at 70 mph. The battery capacity hasn't changed, the car is simply telling you that if that's how you're going to use it, then this is the range you can expect to get from it.