I had the car checked on my friends Autel diagnostics machine and the following error is stored:Ĭontrol Unit N30/4(Electronic Stability Program Control unit), internal fault. I restarted and the fault hasn’t returned yet - I’ve driven about 30 miles today. I then took the car to the car park and did a few turns - full lock both ways. Then I checked the tyres and noticed a couple were low pressure -I filled them up and drove around but the error returned. I restarted the car a few times and had the same fault each time. Last night I got the above error and the steering became really heavy.