Hi, I’m new to this Mercedes lark having previously owned a bmw’s but I’m trying to buy a thermostat for my 2012 e350 cdi 265 bhp version and I thought I’d go to my local Mercedes dealer. No can’t do that, have to make an appointment to buy a part. WTF. Just wondered if anyone else has tried to buy parts from Mercedes recently and their experiences of this as I online chatted to them and a day later no response.