X254 Mercedes GLC 300e faults in first few weeks
Bought A Mercedes GLC 300e.
Delivered 5-Dec-2025.
Dropped back off to dealer 31-Dec-2025, less than 30 days of ownership.
In the short ownership, 9 separate faults:
1. Media playback from connected phones inoperative.
2. Some functions on central display disappeared; then returned spuriously.
3. Driver display went blank while driving, for approximately 25 seconds.
4. Car speed jerked suddenly, on two separate occasions.
5. Mercedes Me app failed to connect to car, and failed to update itself (stuck on a particular time of the day). Multiple instances of this.
6. Mercedes Me app indicated rear right window was open. On going back to the car to check, the window was closed. On a separate occasion, same thing happened, but regarding the front right window.
7. Apparently failed over-the-air car software update, after which all personal settings/info wiped, profiles lost, phones disconnected. And the car would not let us start and drive away for about 10 minutes.
8. Cruise control inoperative during a drive, with displayed messages, for about 20 minutes.
9. Multiple systems 'Inoperative/Malfunction' messages displayed.
We feel unsafe and insecure, driving it, so returned it to the dealer.
We have advised Mercedes UK and the dealer that we want full refund.
Not happy at all. £58k cash paid for the car.
