MG4 Air Conditioning (potential) problem?

[CharlieT]

You could get the AC gas levels checked? At my service they regassed it was they reckoned it was low when done at the factory. I'd complained it seemed excessively noisy, it still worked though.

I don't believe it needs regassing. When it works (over 95% of the time) it works very well. It's just a bit of a lottery whether it'll turn on or not when you get in the car. And nothing I do seems to reset it. Very strange.

 

[ChrisDCB]

As noted on other threads, the battery cooling system shares the A/C pump with the cars interior. When both are required at the same time the automatic battery system will take precedence over the interior and shut it down or reduce its effect until the battery has reached a lower temperature.

Hmmm - not sure about this. When it decides not to work, the compressor does not even try to start up. Might be a gas pressure issue… I am dropping it in to the dealer next week. Will keep you updated.

 

[ChrisDCB]

Try this…
Turn off the a/c before turning off (locking) the car. When restarting the car, wait until the Home Screen has completely settled down then turn on the a/c. Seems good so far… or it might just be magic!

 

[CharlieT]

Try this…
Turn off the a/c before turning off (locking) the car. When restarting the car, wait until the Home Screen has completely settled down then turn on the a/c. Seems good so far… or it might just be magic!

That might work Chris, but I don’t feel I should be needing to turn the a/c off before I get out of the car every time just to ensure it actually turns on again the next time I get in! It’s just yet another thing MG needs to fix, but if it’s a rare fault then I doubt they’ll bother unfortunately.

 

[ChrisDCB]

Sadly - it didn’t work…. Tried the formula this morning and could not get a/c to start. Will see what main dealer has to say.

 

[ChrisDCB]

Well…. I was expecting a faulty pressure sensor or some such but they changed out the complete compressor…

Slightly weird that they had a spare one in stores. Perhaps they are expecting to have to do a few.

 

[CharlieT]

Well…. I was expecting a faulty pressure sensor or some such but they changed out the complete compressor…

Slightly weird that they had a spare one in stores. Perhaps they are expecting to have to do a few.

Interesting. I emailed MG UK about it yesterday and they said it isn’t a known problem, and a dealership will need to investigate. My car isn’t going in until the very end of September unfortunately. I get the distinct impression they aren’t keen on doing warranty work. Another dealership near me said they couldn’t look at it until November!! ??‍