IM5 terrible cruise control (pilot mode)

[Grimbo]

Today I did my first long drive in my IM5 performance and I have to say how disappointed I am with the cruise control (pilot mode).

In a nutshell - when it's trying to maintain a gap between you and the car in front, it never just eases off, it always brakes. Imagine you're in lane 2, preparing to overtake a car in lane 1, 75 yards ahead and someone else in lane 1, 50 yards ahead also pulls out into lane 2 to overtake - the IM5 will brake agressively to maintain the pre-programmed gap. You or I would just ease off the accelerator to regain a comfortable gap, the IM5 will brake agressively, always.

Imagine you're in lane 1 being overtaken and you too want to overtake the car in front... You wait for the car overtaking you to pass. You pull out behind it - the IM5 will slam on the brakes because you're now too close to the car in front! You or I would know that the car in front is moving faster than you and you're not going to hit it.

In my opinion it's borderline dangerous and certainly unuseable.

Notes...
I know you can increase or decrease the gap, I tried all 5.
I wasn't cruising in lane 2, I was overtaking safely well in advance and moving back after the overtake.
I've come from an I-Pace which had neither of these problems. It's computer seemed to understand that if the gap is increasing then it doesn't need to brake.

 

[Stuart Wright]

Interesting. I assume that no reviews mentioned this issue?

 

[Grimbo]

Interesting. I assume that no reviews mentioned this issue?

I didn't see it mentioned anywhere.

 

[EvilSeagull]

That's too bad, sounds like it's as useless as ACC on my MG4xp.
You would think that after all these years some improvements would be made.

 

[Alb]

I'm not overly impressed with ACC on my MGS5. I'd be perfectly happy with dumb cruise control same as my MG5 had.

 

[JSGP]

Owned by IM5 for nearly 5 months and totally agree the ACC is constantly breaking instead of just easing off and letting re-gen take the initial control, imagine what the driver behind sees with constant flashing of brake lights. Switching ACC of via the stalk control also causes a disconcerting thumb within the car.
Sadly I've chosen not to use feature and was in hope this could be tuned via OTA update but if MG have no plan for OTA in the UK I have no hope.

 

[mg4mc]

The cruise in my Golf R was great, the MG4 all but unusable unless the road is clear. Even then it brakes whenever you go over the brow of hill. Constantly braking and accelerating, it's like it was written by a school student as their first IT project.