VIBRATION ISSUE - hot off the press!

Pumping up the tyres helps transfer the vibration to the road, imagine a steel wheel on a pure flat surface and an unbalanced brake rotor, vs a soft tyre. Rather than vibes going up, tis vibes going down. I'm keen to take a rotor off and have it balance checked. Mainly due to the tyre pressure finding. Indicates its very close to the tyre vs drive shafts. But there's still something that puzzles me, eco mode is easily 80% less vibration. But this could simply be disengaging the motor, and being decoupled from the vibration source, as the vibration is still there in eco, unless mg speed matches the front motor ? Maybe its nothing more than power cut in diff modes and motor is still spinning.
 
Last edited by a moderator:
seamust1000 said:
A guy on FB posted this...he might be on to something?View attachment 26068
Click to expand...
I think he's on something rather than onto something :)
The callipers weigh nothing when compared to all the other mass in the suspension, driveshafts, motors etc.

As mentioned above, whipping them off is a simple test.
 
Last edited by a moderator:
Freeagain21 said:
First, a little recap.

I got my Xpower in October 2023. Reported the vibration immediately. My dealership agreed there was a problem and put in a technical report to MG.

Subsequently have trialled a steering wheel damper (failed).
Wheels realigned and rebalanced (failed).
Wheels COMPLETELY REPLACED with non-vibrating wheels from a Trophy (failed).

News just in from the dealership.

MG have responded to say:

  • THEY KNOW THERE IS AN ISSUE!
  • THEY KNOW WHAT THE ISSUE IS.
  • But THEY WON'T SAY WHAT THE ISSUE IS.
  • However THEY ARE WORKING ON A FIX.
Click to expand...
I had the vibration issue at 70mph yesterday for the first time. I've had the car 6months. I changed the KERS to adaptive and found that it cut it instantly.
 
Andypandy said:
I had the vibration issue at 70mph yesterday for the first time. I've had the car 6months. I changed the KERS to adaptive and found that it cut it instantly.
Click to expand...
Ive been running on Auto regen for the past few weeks, it has been smoother but I attributed that to higher tyre pressure. I have found Auto regen definitely is more efficient, for start/stop plus highway driving. Not sure why it isn't set as default.
 
I will give this a try, not used adaptive regen before.
However when choosing one pedal mode, I do get a vibration through the car even at a standstill. I don't know if this because it could be bringing the front motor into play for this function. Does anyone else get this when choosing one pedal mode?
 
So a bit of an update. With my rejection request being binned, I ask for a full run down on what had been tried on our car, before I collect it this Thursday. They have done the following (all in writing via e-mai):-

1. Swapped wheels and tyres from another X-Power - no improvement

2. Fitted 4 new tyres to our original wheels - no improvement but 'softer' ride (no info on if same make & spec tyres were fitted but I'm guessing so)

3. Case raised with MG Technical, requesting steering damper mod - request refused on the basis that that it doesn't work (at least MG are admitting this now)

4. Confirmation that MG China have some 'modified suspension components' to address this issue that are currently about to be released to the UK for testing but the dealer has no further info but has confirmed they will source these parts and fit to my car as soon as they can order them.

I am heading out for a test drive with the master tech on Thursday with the car (doing a back-to-back test with their demo car) so I'll try and get more info on the modified suspension then and report back but it does seem on the face of it, MG might actually be working on sorting this.
 
jamherber said:
So a bit of an update. With my rejection request being binned, I ask for a full run down on what had been tried on our car, before I collect it this Thursday. They have done the following (all in writing via e-mai):-

1. Swapped wheels and tyres from another X-Power - no improvement

2. Fitted 4 new tyres to our original wheels - no improvement but 'softer' ride (no info on if same make & spec tyres were fitted but I'm guessing so)

3. Case raised with MG Technical, requesting steering damper mod - request refused on the basis that that it doesn't work (at least MG are admitting this now)

4. Confirmation that MG China have some 'modified suspension components' to address this issue that are currently about to be released to the UK for testing but the dealer has no further info but has confirmed they will source these parts and fit to my car as soon as they can order them.

I am heading out for a test drive with the master tech on Thursday with the car (doing a back-to-back test with their demo car) so I'll try and get more info on the modified suspension then and report back but it does seem on the face of it, MG might actually be working on sorting this.
Click to expand...
Isn't the anology interesting with the Trophy ER...
What if the Xpower and ER share the hardware causing the issue?
 
CooperS said:
.........However when choosing one pedal mode, I do get a vibration through the car even at a standstill. I don't know if this because it could be bringing the front motor into play for this function. Does anyone else get this when choosing one pedal mode?
Click to expand...

Yes, I get a vibration as soon as I turn it it on and then it seems to disappear into the background once driving.
 
Support us by becoming a Premium Member

Latest MG EVs video

MG3 Hybrid+ & Cyberster Configurator News + hot topics from the MG EVs forums
Published
Subscribe to our YouTube channel
Back
Top Bottom