I bought a 2003 S500L with integrated phone cradle. Now, 18 months on, the Mercedes dealerships say that if I want a new phone, then fit an after-sales kit, i.e. it will not be integrated with COMAND, there will need to be a new microphone and speaker. So, the telephone pre-wiring and cradle had a life time of 18 months - pretty poor value. I've discussed this as a separate thread (Electronics:Cannot Upgrade Phone!). When I contacted Mercedes Customer Care, they said that there was no solution. So, I raised the point about an 18 month lifetime and they commented as to whether I was saying that the car was mis-sold. When I said yes, they then stated that I must contact the dealer. I did so and they are looking into this. I am also surprised that the only way of raising this is by phone. There is no route to Customer Service on the Mercedes web-site! Interested in other people's comments.