Range collapse

[F Mache user]

I bought my extended range Ford Mache AWD in late January 2022 and up until now have done circa 25,000 miles. The car has been cosseted being garage every night and only charged up to 80% apart from long journeys as I was advised to do by the main dealer. Until a month ago an 80% charge was giving me roughly 210 miles increasing up to circa 250 in the summer which I was quite happy with. However a month ago I drove into London having charged the vehicle to 80% overnight giving me that 210 mile range. However when I completed the 53 mile round trip I was horrified to see that my remaining range had collapsed to only circa 95 miles. In other words a 53 mile journey had utilised 115 miles of my range. A disaster! I then carried out a reset on the mileage to factory settings which gave me a 270 mile range but having given the vehicle two full charges up to 100%, on both occasions this only gave me a real range of 140 miles. So my battery is clearly suffered some form of catastrophic failure.

This week my local Ford dealership have carried out a full diagnostic test on the battery (which they sent onto Ford )and tell me that it has 98% capacity remaining so there is nothing wrong with the battery and have effectively washed their hands of this as has the main dealer I bought the vehicle from. So I contacted the Ford customer service department who told me that it is nothing to do with them and to go back to the main dealer. So much for Ford customer service. I find this both extremely disappointing and insulting.

The car is on finance with Ford Motor credit so my dealer suggested that I seek redress from them which I am currently in the process of doing so.

So I am one very unhappy Ford Mache owner and after this experience wish that I had never purchased the vehicle in the first place and am very unlikely to ever purchase an EV again unless forced to by the government. And am very interested to see if any other owners have suffered a similar experience?

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[GoosePond08]

a lot of information missing to even provide proper feedback. But first and foremost, what was the temperature outside you were driving in? I find it hard to believe that after 25,000 miles you haven't noticed winter range drops before?

I have shy of 50,000 miles now and constantly can hit 300-330 in Spring and mild Summer but find that it drops to 160-200 in peak winter during 20-30s degree weather. This has been the norm for 4 years straight on mine. Range is very dependent on weather and personal driving.

 

[TheSteelRider]

I bought my extended range Ford Mache AWD in late January 2022 and up until now have done circa 25,000 miles. The car has been cosseted being garage every night and only charged up to 80% apart from long journeys as I was advised to do by the main dealer. Until a month ago an 80% charge was giving me roughly 210 miles increasing up to circa 250 in the summer which I was quite happy with. However a month ago I drove into London having charged the vehicle to 80% overnight giving me that 210 mile range. However when I completed the 53 mile round trip I was horrified to see that my remaining range had collapsed to only circa 95 miles. In other words a 53 mile journey had utilised 115 miles of my range. A disaster! I then carried out a reset on the mileage to factory settings which gave me a 270 mile range but having given the vehicle two full charges up to 100%, on both occasions this only gave me a real range of 140 miles. So my battery is clearly suffered some form of catastrophic failure.

This week my local Ford dealership have carried out a full diagnostic test on the battery (which they sent onto Ford )and tell me that it has 98% capacity remaining so there is nothing wrong with the battery and have effectively washed their hands of this as has the main dealer I bought the vehicle from. So I contacted the Ford customer service department who told me that it is nothing to do with them and to go back to the main dealer. So much for Ford customer service. I find this both extremely disappointing and insulting.

The car is on finance with Ford Motor credit so my dealer suggested that I seek redress from them which I am currently in the process of doing so.

So I am one very unhappy Ford Mache owner and after this experience wish that I had never purchased the vehicle in the first place and am very unlikely to ever purchase an EV again unless forced to by the government. And am very interested to see if any other owners have suffered a similar experience?

You are experiencing a normal effect of winter combined with Ford's implementation of the "Guess O' Meter".

I highly recommend you read this thread, and then come back and let us know if this helps you to understand what you are seeing is normal, and does NOT indicate you have lost any range at all

https://www.macheforum.com/site/thr...lanation-how-to-calculate-actual-range.13749/

 

[Phil-Springs]

You can’t infer anything about battery SOH or much of anything else about your car health from the GOM. You wasted your time at the dealer and should do more searching about the GOM on this forum before panicking.

 

[rhougey]

a lot of information missing to even provide proper feedback. But first and foremost, what was the temperature outside you were driving in? I find it hard to believe that after 25,000 miles you haven't noticed winter range drops before?

I have shy of 50,000 miles now and constantly can hit 300-330 in Spring and mild Summer but find that it drops to 160-200 in peak winter during 20-30s degree weather. This has been the norm for 4 years straight on mine. Range is very dependent on weather and personal driving.

Mike makes a good point here. Most likely your battery is fine, and the temps are cold and you are not preconditioning while plugged in before you begin a short trip of 53 miles in cold temps. Your car is using significant on-board energy to warm the HV battery, which directly affects the range you can expect from the remaining energy. Learn to prewarm the battery while plugged in (using AC off-board power) if you will need maximum range for a given trip in cooler weather. In addition, be aware that even when you pre-warm your battery, once you unplug and begin driving, the car will continue to need to use some energy to maintain the ideal temp in the battery, hence the normal winter range deficit.

 

[ChasingCoral]

Looks like you missed a basic lesson on your GOM:
https://www.macheforum.com/site/thr...ulate-how-far-your-mach-e-can-really-go.6104/

 

[AliRafiee]

Was this your first trip to London? What happened when you took this trip before?
How has it been since you got back in town?

 

[F Mache user]

You are experiencing a normal effect of winter combined with Ford's implementation of the "Guess O' Meter".

I highly recommend you read this thread, and then come back and let us know if this helps you to understand what you are seeing is normal, and does NOT indicate you have lost any range at all

https://www.macheforum.com/site/thr...lanation-how-to-calculate-actual-range.13749/

Like I say up until one month ago I was getting roughly 210 miles on 80% charge in the winter and 250 miles in the summer. The temperatures in the UK over the last month have been no lower than when I was getting 210 miles on 80%. So is not the temperature that is causing my range to collapse to only 140 miles with a 100% charge with temperatures at +8°C

 

[TheSteelRider]

Like I say up until one month ago I was getting roughly 210 miles on 80% charge in the winter and 250 miles in the summer. The temperatures in the UK over the last month have been no lower than when I was getting 210 miles on 80%. So is not the temperature that is causing my range to collapse to only 140 miles with a 100% charge with temperatures at +8°C

Your range is not collapsing!

Ford's estimated range runs on an algorithm. That algorithm runs and displays a number on the instrument panel cluster. It is merely an estimate of your range based on temperature, recent driving habits, route planning ,etc. It is not representative of your actual range, nor your battery state of charge, nor your battery health.

I still recommend reading the linked post, and also the posts linked by other seasoned folks here, and I really believe that will help you to understand and realize your battery capacity / health / range / etc. are fine. The linked posts will also help you to understand and do the basic math on your own to confirm your actual range. If you do this exercise, it can confirm your actual range and it can alleviate your anxiety.

 

[rhougey]

Like I say up until one month ago I was getting roughly 210 miles on 80% charge in the winter and 250 miles in the summer. The temperatures in the UK over the last month have been no lower than when I was getting 210 miles on 80%. So is not the temperature that is causing my range to collapse to only 140 miles with a 100% charge with temperatures at +8°C

In addition to operating temperature, there are other factors that will affect real range as well as estimated future range. Speed, terrain, wind, tyre pressure, interior accessory use, etc. If you have considered all of these without satisfaction, it may be comforting to know that YOU ARE NOT ALONE. There have been many others who have gone before you with the same experience and resulting certainty that their car is broken.

 

[TheSteelRider]

Like I say up until one month ago I was getting roughly 210 miles on 80% charge in the winter and 250 miles in the summer. The temperatures in the UK over the last month have been no lower than when I was getting 210 miles on 80%. So is not the temperature that is causing my range to collapse to only 140 miles with a 100% charge with temperatures at +8°C

8c (46f) is EXTREMELY cold for the battery, roughly half the temperature it prefers to be at. This means the 53 miles your Mach E was using tremendous amounts of electricity to do nothing other than warm the battery.

I recommend this thread for learning how to mitigate this, by using departure times, preconditioning, etc.:
https://www.macheforum.com/site/threads/mach-lees-cold-weather-charging-strategies.24548/

 

[Monke]

When my ER AWD was fairly new, GOM showed 292 miles range at 98%, I drove 186 miles down to 5%. That was the longest leg I used to drive between charging stations. I did not write down the parameters but I'm pretty sure that I did not turn on the heater and my speed would have been between 72-80 mph with 80 mph speed limit. The temperature should be around 60 F - 70 F with big elevation change. I doubt that my MME would do 200 miles between charging on highway in Texas winter!

 

[Mach-Lee]

Range collapse sounds a lot like the sky is falling. But it's not.

You need to do some research on cold weather effects on range. Range will start to decrease below 20ºC outside.

 

[Murse-In-Airy]

Like I say up until one month ago I was getting roughly 210 miles on 80% charge in the winter and 250 miles in the summer. The temperatures in the UK over the last month have been no lower than when I was getting 210 miles on 80%. So is not the temperature that is causing my range to collapse to only 140 miles with a 100% charge with temperatures at +8°C

You’re still assuming the GOM on the dash equates to some form of reality. Go out and drive it in your usual fashion. Then calculate your own math. Check the efficiency on the trip meter versus what you used to get. Multiply that by your state of charge. Is your number different than the GOM. I’m going to bet that on the way to London you drove at a higher speed for a longer distance than normal and it introduced variability into the GOM algorithm which will correct slowly as resume your normal driving habits.

 

[A-A-Ron]

It's not that it's the 69 bazillionth thread on this, it's the way the OP comes here for support and everyone tells them the same thing and they insist everyone's wrong that makes me smile

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