MG4 X-Power waiting area

[Rolfe]

Bjorn Nyland (Teslabjorn on YouTube) found that the MG4 with NMC battery would go for another 15 miles (might have been more) once the indicated state of charge reached 0%. That's usually enough to get you to a charge point.

We tried it on the hard shoulder it was beeping and warning us right down to 1% then 0% but it just kept on driving. We drove all the way to the next charge point and I suspect could have driven further

I watched that too. He was working in km, but I did the conversion and also came up with 15 miles.

My own car has an LFP battery, but when I drove it down to 4% one day I had no power restrictions, and all the way from 26% (which is where I started to take notice of what was going on) the % charge and the GOM dropped together at around 2 miles for every 1% battery charge, steadily, with no sudden alarming recalibration. I can't say it would do what the LR battery did with Bjorn, but so far as I took it, it was reassuring. At 15% charge the GOM was showing 28 miles, and I knew I was 23 miles from home. When I got home I was on 4% with 8 miles still on the GOM.

I've been discussing this in a thread in General Chat, and a couple of people posted videos taken by drivers who really did run out. What seemed to be consistent between the accounts was that one minute the GOM (and the % charge) looked as if they'd be OK, but then suddenly the car seemed to recalibrate and announce a very low SoC and very few (and diminishing) miles on the GOM.

One of the two cars involved I believe has an LFP battery, not sure about the other. What I have learned is that the LFP battery hates repeated partial charges without being allowed to balance at 100%. The charging profile of the battery is almost flat, making it very difficult for the BMS to figure out how much charge remains, and the balancing at 100% is important for the SoC and the GOM being reasonably accurate. If that isn't done, the instruments are more of less working blind, until very soon before the battery is empty the real state of affairs suddenly becomes obvious, and the recalibration comes as a severe shock to the driver.

I am suspicious that LFP (SR) owners are being influenced by all the "don't charge to 100% too often it's bad for the battery" talk that's aimed at NMC (LR) owners. They're not taking the battery to 100% and balancing every charge, hence their cars are giving an over-optimistic wild guess until the battery is more or less about to give out.

This is quite a long way off topic in this thread, just prompted by that last post. As you were!

 

[Foulsmell]

The link I posted.
It’s in its own section (probably because it looks way less favourable heh)

MG4 EV XPOWER Offers

MG4 EV XPOWER Offers

www.mg.co.uk

Leasing deals are way better at the moment. No way I’d pay 8.9%.

 

[leafer]

I can't find any info on what types of motor it has. I assume the rear is permanent magnet but is the front one an induction like Tesla dual motor setup that helps efficiency?

 

[evmg1]

I can't find any info on what types of motor it has. I assume the rear is permanent magnet but is the front one one an induction like Tesla dual motor setup that helps efficiency?

I've tried to find out too....still looking

 

[JonnyG]

I have an Xpower on order and one of the first mods I do will be to either remove or recolour the orange brake caliper covers. I’ve heard they are plastic. Does anyone know if they are easy to remove ? It looks like black two screws / bolts on the photos.

 

[JonnyG]

Just been out for a whizz up the M1 in the Leeds XPower, to try out the steering wheel tremor.... like you say, it's there 70mph+, but it's negligible - both with MG Pilot on and off. It just feels like the vibration you get from the road surface, but doesn't change when you go from tarmac to concrete. You can't see the vibration, only feel it.

I didn't find it particularly noticeable until I was looking for it (neither did my husband), but I think it must also depend on what kind of car you are used to driving. Coming from two petrol-powered, low-suspension cars, we're used to having our bums on the tarmac and feeling every vibration in the road.

I was anxious reading the posts about the potential problem, but it hasn't deterred me from buying the car - order already placed. But then I don't do lots of motorway driving. I haven't had the opportunity yet to drive the ER for comparison purposes.

Like you I didn’t notice it on my first test drive so am intending to do a second test. Apart from the slight feel you got in the steering wheel was there any buzzing noise or anything else you heard please ? And what speed range did you try (in kph of course for legal reasons!!).

 

[seamust1000]

I have an Xpower on order and one of the first mods I do will be to either remove or recolour the orange brake caliper covers. I’ve heard they are plastic. Does anyone know if they are easy to remove ? It looks like black two screws / bolts on the photos.

I test drove the X Power last weekend and the covers are metal

 

[tsedge]

You want to get some like these...

 

[Rolfe]

Give it time and they'll be £20 on Aliexpress!

 

[evmg1]

Like you I didn’t notice it on my first test drive so am intending to do a second test. Apart from the slight feel you got in the steering wheel was there any buzzing noise or anything else you heard please ? And what speed range did you try (in kph of course for legal reasons!!).

You can feel it under acceleration from 50 to 70mph and starts at about 68mph. Its then there at 70mph when cruising most of the time. No noise.

 

[JonnyG]

Thanks …. the Electrifying YouTube review said plastic !! …. but probably didn’t check.

 

[MG4London]

This car will be a pussy magnet

Imagine a young man picks up a young lady for a date and he get out on a big fast road and does 0-62 in 3.8 seconds and her head goes back against the headrest

It’s going to be very exciting

 

[crunchy]

I can't find any info on what types of motor it has. I assume the rear is permanent magnet but is the front one an induction like Tesla dual motor setup that helps efficiency?

I have no idea about the type of the front motor, but who said that induction motor helps in efficiency? As far as I know, motors with permanent magnets should be more efficient than induction ones. Am I wrong?

 

[leafer]

I have no idea about the type of the front motor, but who said that induction motor helps in efficiency? As far as I know, motors with permanent magnets should be more efficient than induction ones. Am I wrong?

I'm no expert but whilst permanent magnet motors are efficient they can still draw power when your foot is off the throttle. Having an induction motor in the front mitigates this to help regen. I think I first heard about this on the fully charged podcast where a guest was describing the benefits of Teslas dual motor setups.

 

[Deleted member 10041]

This car will be a pussy magnet

Imagine a young man picks up a young lady for a date and he get out on a big fast road and does 0-62 in 3.8 seconds and her head goes back against the headrest

It’s going to be very exciting

How old are you!!

It may be quick but the Instagram generation are not going to be interested in an MG

 

[MG4London]

How old are you!!

It may be quick but the Instagram generation are not going to be interested in an MG

When it’s dark or half the time they don’t even know what car they are getting into, then 0-62 in 3.8 seconds nothing else matters

 

[Freeagain21]

This car will be a pussy magnet

Imagine a young man picks up a young lady for a date and he get out on a big fast road and does 0-62 in 3.8 seconds and her head goes back against the headrest

It’s going to be very exciting

How old are you!!

It may be quick but the Instagram generation are not going to be interested in an MG

I've corrected it for you...

This car will cause heart attacks.

Imagine a person picks up another person for a trip to bingo and they get out on a big fast road and do 0-62 in 3.8 seconds and their head goes against the headrest...

 

[crunchy]

... they can still draw power when your foot is off the throttle. ...a guest was describing the benefits of Teslas dual motor setups.

Now I understand.
Electric motors do not draw power if we do not "feed them" with electric current. I think it might be just a commercial for Teslas.

Here:
Learn to Speak EV: Electric Cars Explained for Gearheads

I found the following text: "Tesla, for example, uses alternating current (AC) induction motors in the Model S but uses permanent-magnet direct current (DC) motors in its Model 3. There are upsides to both types of motor, but generally, induction motors are somewhat less efficient than permanent-magnet motors at full load. Permanent-magnet motors are also often smaller and lighter than their induction counterparts. Although it's possible to get tremendous performance out of induction motors (the top-performance Model S variants, for example), permanent-magnet motors are often considered an upgrade."

 

[Deleted member 10041]

When it’s dark or half the time they don’t even know what car they are getting into, then 0-62 in 3.8 seconds nothing else matters

Get a grip I think girls have a bit more about them than being impressed by a unknown EV going really quick.
It's like listening to one of the Inbetweeners

 

[Ian Key]

Sounds like Top Gear trying to impress the girls with a handbrake turn.