Jerky at constant speed

[pete l]

Hi all,

my 3 hybrid can be a bit jerky trying to keep a steady speed, around 45mph, in HEV mode, in EV mode it's fine.

Has anyone else had this ?

Pete

 

[andrewjoseph]

I'm new to hybrids but my car is not jerky. I am however still getting used to the regen happening when I ease of the accellerator. Maybe this is what you are feeling?

 

[pete l]

Definitely jerky, wants to go but doesn't want to go. Can be very jerky, only around this speed and only in hev mode

 

[Chinook]

I've noticed this on mine it feels like it can't make up it's mind whether it wants to be in HEV mode or EV

 

[johnbristol1966]

Mine does it at about a steady 40mph, I think its the car not deciding what gear to be in. I've read somewhere it's quite common for this car.

 

[Chinook]

Mine does it at about a steady 40mph, I think its the car not deciding what gear to be in. I've read somewhere it's quite common for this car.

Could be John i think the car would benefit from 2 more gears

 

[Emanuel]

I have the same problem with my MG ZS, since it has the same hybrid engine. When I first bought it in March 2025, the transition from EV to HEV was completely smooth and unnoticeable, but after about 7,000 miles I started experiencing this strange issue as well, at a steady speed of 40 mph. Even during acceleration from 0, when it reaches that speed, there’s a noticeable jerk. I’ll take it to the service center in two months and see what they say.

 

[pete l]

Mine only does it when the energy flow is yellow. I don't know what that means though.

 

[johnbristol1966]

Mine only does it when the energy flow is yellow. I don't know what that means though.

Yellow = Engine power to wheels or batteries.
Blue = Battery power to wheels
Turquoise = Regen to batteries.

I think.......!