@Omodos, new tyres are definitely on the list, believe me

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The problem I have been having is identifying the light that comes on at the same time as the 4wd light.
They are both yellow, only two at any time and obviously the same two

but the other one is identified as many things depending on whether the car is classified a EU, Can, or ME version. The problem is mine is in Australia and it is not mentioned.
The other light is like a brake light with a question mark in it and only lights yellow. After turning off, you can go out the next day and drive all day or two kilometers. Today I got another two kilometer drive and this time the throttle was locked out, idle was about 1300 rpm but pressing the pedal made no difference. So, I just drifted home with the wind.
Anyone got a clue what I am talking about? Still trying to figure out how to install ISTA, have a legal version but it does not install like normal software as far as I can see. Searching that now.