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  1. Petriix

    MG5 Front Collision Avoidance

    While such 'phantom breaking' events feel dangerous, the truth is that slowing down is unlikely to cause a severe accident whereas the potential for avoiding such accidents is enormously increased with AEB. Personally I'm happy to have an MG5 SR which doesn't have any active safety tech...
  2. Petriix

    Charging to 100 % on 7 kW home charger.

    Chemistry and physics are not subject to opinion. It's only a 'debate' because people who don't fully understand the facts decide to chime in with their assumptions. As this is the MG5 forum and every MG5 EV has NMC chemistry it's objectively accurate to state that the closer the battery is to...
  3. Petriix

    What tyres are you going for?

    I think the Michelin E-Primacy are pretty decent in terms of economy while maintaining good grip, but they're not cheap.
  4. Petriix

    Mg5 not charging properly with zappi after service

    Try setting the 'end charge' setting in the Zappi compatibility options to a larger number like 90s and see how you get on.
  5. Petriix

    DASH CAM

    It's pretty trivial to DIY. Took about 15 minutes with the appropriate kit from Amazon.
  6. Petriix

    Mg 5 issues

    Thanks for sharing this. It's good to document the issues. I wouldn't worry about a tiny amount of surface rust, it's totally normal. The tyre wear suggests that the wheels are incorrectly aligned so you should get them checked. However, simply inflating them a bit over the recommend PSI will...
  7. Petriix

    So Energy

    Just switch to Octopus (yes, they are accepting new customers) and pay just 7.5p per kWh overnight. That will save you a fair bit more than 60p per hour.
  8. Petriix

    AC Settings - which is more efficient?

    If it's off then it's off. Probably just a software bug that the eco light still comes on.
  9. Petriix

    AC Settings - which is more efficient?

    But, with open windows, you'll create more drag.
  10. Petriix

    AC Settings - which is more efficient?

    Objectively the most efficient is to turn the HVAC off. You can turn the recirculation off as well and just have passive air flow.
  11. Petriix

    MG5 System Fault - HV Battery Shut Off

    No one has quite figured out the exact circumstances that cause the issue. The CCS protocol is notoriously wooly and there are certain combinations of EV and charger that don't play nicely together. However, the MG software is certainly more than a little buggy. I suspect that they (MG) have...
  12. Petriix

    Eco,N or S and Kers 1,2 or 3 research

    Deceleration doesn't cause regen, regen causes deceleration. The more friction there is in the hydraulic braking system, the less energy can be recovered through the electromagnetic system. That's simple physics: more of one means less of the other. It's not a case of trying it to see if it...
  13. Petriix

    Battery percentage, Ah or kWh? Battery degradation if charged 100 %?

    1) It's percentage of overall usable capacity, which can be expressed in AH and Volts or kWh (or joules etc). As it's a percentage it doesn't require any further clarification and it would be nonsensical to attribute it to something like kWh. 2) Yes, the battery will degrade over time and lose...
  14. Petriix

    Charging Routine

    Certainly it's your last point. Any admission that the batteries require some kind of thoughtful protection would add to the narrative that batteries will die and need replacing. They're confident that whatever you do will be within the tolerance of the warranty so they simply don't need to...
  15. Petriix

    Eco,N or S and Kers 1,2 or 3 research

    I'm not sure why you think 'regenerative braking' requires use of friction between the pads and the disks - that's totally illogical. Applying the friction brakes can only waste energy as heat; the only way to recover energy is to use the motor as a generator, which is exactly what applying the...
  16. Petriix

    Eco,N or S and Kers 1,2 or 3 research

    You're making the incorrect assumption that KERS 3 applies the maximum amount of regenerative braking; it doesn't, by quite some margin. The brake pedal will apply a combination of regenerative and friction braking depending on the driving mode, state of charge and how hard you press. The...
  17. Petriix

    Eco,N or S and Kers 1,2 or 3 research

    Life's definitely too short to put two 'o's in 'too'... Otherwise a great post. It's worth having an awareness of this information, then you can make an informed decision as you drive. I would add that it's even more nuanced than that because it's unknown exactly how the friction brakes are...
  18. Petriix

    Over 300.

    Stick it in eco and turn off the HVAC and it'll go up even more.
  19. Petriix

    Its amazing how ice drivers are environment experts

    5.7p per mile!? You're being robbed. My MG5 is running at 1.1p per mile.
  20. Petriix

    The Ultimate MG5 "Real World" Energy Consumption Thread

    I find the reported miles per kWh figure to be pretty inaccurate in comparison to the percentage drop of the battery. Either my battery capacity is bigger than advertised or the consumption figure is pessimistic. By recording the energy used for charging I'm able to calculate the real miles per...
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