Worst experience I have ever witnessed from a car dealership. Had brake judder on 5 month old car, Stockport fitted new front pads on discs. Three weeks later same problem....this time there technician said back discs warped and wanted £400. Took for 2nd opinion to National who said nothing wrong but because Mercedes are so called experts I asked them to change anyway at cost of £300. Needless to say brake judder still there, so took back to Stockport where Kate would look after me. Kept the car for 24hrs then refused to work on it because I National changed the rear discs and pads. Never have I heard of such bad customer service, they simply refused to do anything for me except turn me away with a bull excuse. So much for there owners business mantra "The Lei Shing Hong Automobile group works in close partnership with Mercedes-Benz to ensure all customers receive the best possible service. This commitment to providing the highest level customer service is central to the core values of Lei Shing Hong". Not sure where they learned if you can't fix it send the customer away with a safety critical defect on a 5 month old A180.