Hi BfgSLKMan,
Thank you for your contribution. Yes, it does help and reassures. I’ve been given the MB service history of the car yesterday and I could see that the previous keeper was advised during the last service to replace the front discs and pads, as they were 77% worn and the discs were lipped. However, they didn’t. So perhaps this could explain the slight judder I experienced during the test drive.
Meanwhile, the dealership has refurbished the alloy wheels and will complete the replacement of the discs and pads tomorrow, so I will be able to do another test drive. And I have been informed that the manager is happy to give us a written warranty, so fingers crossed.