I've had the BAS/ESP issue since I bought my car in June. The steering reset gets rid of the problem momentarily, but it always comes back and I lose the Cruise Control and Traction Control. I took it to the stealership last month and the fault they pulled was: 1529-101 Preloading for ESP not available.

The could not fix the problem there and then and advised me that I needed to bring the car back so their specialist electrician could look at it - at £109 per hour! I will be taking the car in next weekend and hopefully they can diagnose and resolve the issue.

After reading Dimitre12's post and a few others regarding this issue, I'm wondering/hoping if it could be a faulty Brake Light Switch. How would I test this? The brake light goes on fine when I press the pedal - is there something more I need to eliminate this as the issue?

Tyre pressures are fine and I have a new alternator.

Regards

AR