Hello together, after the topic of AHK retrofitting has been mentioned here more often, I would like to give here my experience report for the best. I decided for a vehicle with Panorama Kadach, and as it is known, there is not this feature in combination with the trailer coupling. After I would like to take a bicycle with me, however, I need one. So I once informed myself on the market and also once from two Mercedes workshops an offer e The offer including installation was about 5500 €. Even if you pull off all parts, a proud amount for installation was called up. However, I wanted an original swivelling, and no removable from the accessories. I looked around something on the market, and at one part dealer in Sweden discovered a new, unused trailer coupling including cable set from a battle cyclist. The Kupplun g came from a dealer with warranty. And that at a price of 750 € including shipping. To this came second information elements for 100 €, the original Mercedes cable set for about 60 €, the aperture and switch for about 100 € and still some small parts and Krimskrams for about 100 €, not so forget the ECU, that I also got from a recycler for 250 €. So I was with all parts at about 1300 €. The bumper hood does not have to replace The installation was manageable without having really stopped the time, I guess that the installation was done with all the drum and drum, including cable set in 4 hours. Then it was still to the coding and unlocking of the ECU including software update, which I did in the context of a necessary workshop stay with the The trailer coupling has been added to the data card and all the control units have been coded correctly. I have not yet got the exact price for this, since I have not received the invoice yet, but the master said at the pickup that it was about 1 hour. Now, if I calculate the total expenditure now, it was about 1500 € plus the installation, which is first with zero euro in the books 😉 In any case, the trailer coupling is now functional, including the k ompletten integration into the MBUX, In the vehicle license this had already been in my place anyway. Add a few pictures of the integration. al