MG ZS Hybrid+ high engine revs

[Jockster]

Sports Mode? Revving problem gets better with mileage but always apparent esp if you have AC on.

 

[MondyZurich62]

Hi everyone - Picked up my new ZS Hybrid+ just over a week ago. On the whole very happy with it but recently around town the revs are stay between 2.2 and 2.5 when travelling at around 35 miles per hour on flat ground, even with a slight incline. Been told by the dealer that it is revving at that level as it is charging the battery, but still it seems a bit high to me, given I set the car up in Eco and regeneration 3 - not sure where the economy around town is going to come from with this level of revs.

 

[David38]

Well if around town as your subject header then 35mph is too fast
Try 30mph or under, Dong this I do not get your high revving but 1.1, 1.4 or sometimes 1.8 krpm.
I'm on Normal and regen. 2

 

[MondyZurich62]

Well if around town as your subject header then 35mph is too fast
Try 30mph or under, Dong this I do not get your high revving but 1.1, 1.4 or sometimes 1.8 rpm.
I'm on Normal and regen. 2

Ha! Thanks David - Obviously doing 35 in a 40 MPH zone.

 

[Stephen L]

@MondyZurich62 I’ve noticed that driving from cold at the start of a journey it does like to charge the battery at the 35-40 mph speed for a while. Similar revs to you. It calms down when the engine has warmed up a bit. Round town I get over 60 mpg with plenty of EV mode and low revs in HEV

 

[MondyZurich62]

Thanks Stephen

 

[Robert1957]

Just had the attached from my dealer. I'm sure Noel will agree that it is not specific and therefore not helpful and quite unprofessional. They need to say what they consider 'normal high revving' is so that we know if there is a problem on some of the cars or not. I don't mind the occasional 3500 revs but as I and several others often get 5000 revs does that indicate our cars have an issue? The noise the engine makes at these revs really is off putting to myself and causes alarm to passengers. Should all of us who have this issue respond directly to MG technical requesting this clarification. The mpg also drops rapidly when the high revs occur and so also does affect overall mpg. It seems like the car can do all of what it says on the tin but not at the same time so don't have A/C on if you want good mpg, don't drive up steep hills and try and overtake anyone, you can have a high rated bhp car but only in short bursts....................

 

[Jockster]

Fascinating. I follow Yaris Cross feeds as that was my next purchase before the ZS. This is much more car and less buck. They have a 12v battery problem. The hybrid engine system does not regenerate it sufficiently. My wee Yaris hybrid died on me twice. Once at a Dublin- France ferry port as boat was leaving.
The MG does not (as yet) have this problem due to revs taking precedent. Just keep AC off! Heater, seats and wheel are fine. I do 10hrs+ in France in the summer . Will be interesting to see how the Air Con does then cooling the cabin down.

 

[Nico]

Hi Robert,
I haven't been on the forum for a while but I'm still experiencing regular over-revving even after the update and 5500 miles on the clock.
In their response to you MG several times refer to a cause of the high revving being to recharge the battery. I do not agree.
Many times I've driven up a hill, with high revs, only for EV to kick in as soon as I plateau.
For example, 2 days ago I drove up a gradual incline of approximately 2 miles at 40 mph with revs of 3.8 to 3.9 all the way. I can accelerate but revs then pass 4.0. I can decelerate but revs don't fall significantly.
Yet at the top of the incline EV immediately kicked in, so presumably the battery had been near full or full most of the way.
So, I can't understand, why didn't the hybrid system use the battery resource at some point during the climb thus allowing the revs to drop? Why do I have to experience 2 miles of over-revving and the associated screaming engine when the battery is seemingly replenished.
I'm still planning on going to the motor Ombudsman but I'm collecting a GoPro from my daughter first to video a few more fun climbs.

 

[steviebee]

I have had my mg zs se hybrid 2 weeks now it goes into over revs , once after just five minutes and going down hill , over 4000 plus revs , this is not normal in any car, and needs sorting .

 

[Robert1957]

I told my dealer the letter was not specific enough and this was there response
Hi Robert,
From doing a little more research they say “When the engine revs to 4/5000rpms the engine is working like a generator to produce electricity for the electric motor to drive the car.”
Other than that, there isn’t any further information provided to us. I apologise that we are unable to assist any further

Also this totally contradicts ghe fact that the manual states not to exceed 3000 revs initially but now they say 4500 revs is normal. This never occurred before the dreaded PD052 update
I have all the same issues as you Nico so it will be interesting to see some videos.
I don't think the car is suited to welsh hills, and a good idea would be to try several MGZS hybrid cars on the same route to see if the issue is car specific or if it is the hilly terrain

 

[Mikel14]

This is my son's ZS with virtually a full battery,totally unacceptable.
I have the MG3 hybrid on the same road my rev's are around 2000rpm

 

[Hans Gerd]

There does not seem to be a thread on the revs-topic in the MG3-Hybrid-Forum ... so isn't it the same motor in the ZS? so hopefully it's solveable

 

[Mikel14]

There does not seem to be a thread on the revs-topic in the MG3-Hybrid-Forum ... so isn't it the same motor in the ZS? so hopefully it's solveable

It is the same running gear, but I think it's different software version.

 

[Haza]

Hi just received my new mgrs hybrid +on a drive out went to over take when to my horror the car just reved at 50 mph no drive managed to pull back is this a issue or will some one be killed with this fault what do I do with the car it’s been back to the garage and they say that’s what they do surly no any advice please

 

[Everest]

Can you explain that in more than one sentence?

 

[steviebee]

I am sorry everyone but we might have to face facts here , there is something fundamentally wrong with the whole set up when the engine makes at times ridiculous noises and far too high revs . My petrol cars of past I never once went over 4000 revs. If the new software update does not come to the UK and fix the problem, I will be selling my zs asp, it’s a shame as it’s a really nice looking car but if it sounds like a bag of hammers it’s a waste of time .

 

[steviebee]

It is a fault don’t let MG say differently, I have a horrible feeling the saic company may have really dropped a clanger with this one to all our expense.

 

[Haza]

Can you explain that in more than one sentence?

Hi Everest just new to this site had to scary car death trap like I said went to overtake doing 50mph when the car just reved and seamed to loose drive lucky I could pull back in now it does it going up hills not good been back to garage witch where fantastic I must say but they says it’s how they work hybrids surly not

 

[maskull]

Hi Everest just new to this site had to scary car death trap like I said went to overtake doing 50mph when the car just reved and seamed to loose drive lucky I could pull back in now it does it going up hills not good been back to garage witch where fantastic I must say but they says it’s how they work hybrids surly not

Having had two hybrids ,not MG, they definitely shouldn't work like that .