Hi @shah84 , the Mercedes series are still at the trial stage but most things should have been worked through by now - of course, it’s only by testing a whole series of combinations that everything be validated. 
If you have a compatible charger of course, any EV is eligible. 

thank you. is there any particular charger that is best?

I’m of the opinion that ‘it depends’. There are some considerations such as if you have solar PV then the choice is restricted - otherwise Charge Anytime can’t determine where the charge emanates from. 
You should also consider your internet connection strength and look at a wired connection if in doubt. 

Thank you for your detailed reply! I was considering the hypervolt charger as it’s wired, however I noted that this is also on a trial 

It is although it has been in ‘action’ for a few months. 
 

If you’re in any doubt on any point then the tech team are available chargeanytime@ovoenergy.com 

Hey @shah84, 

Congratulations on your new EV! I added a badge to your profile to show that you’re now part of the EV club 

 
It looks like you’ve received a lot of useful advice so far! We were fortunate to have @Blastoise186 and @Peter E in the office for a visit, and they got to see one of the new Hypervolt chargers on the day they were announced. 
 
There are always a few things to consider when installing a charger, like cable length, whether you have or will consider getting solar power in the future, and whether you need to connect via ethernet or Wi-Fi. 
 
@BPLightlog has already shared the article I put out for them and provided the email address for our Charge Anytime team, which is more than happy to answer any questions. You can also call them at 0330 175 9678 (Option 1 new customers/Option 2 existing customers).
 
Please let us know if you have any further questions or need support! 

The issues of charrging EVs is complex. SpeakEV is a good forum to go on (if you are not already) as there will be other people in a similar situation.

The consensus appears to be to control the car not the charge point (CP) This is because the car then knows what is expected of it whereas controlling the CP the car is suddenly presented with a charging situation it wasn't aware of and at some point the power will suddenly disappear and it may cause the car to consider that the CP is now faulty. Cars not expecting to be charged can also go into a deep sleep and presenting them with a charge signal from a CP won't wake them up so they won't charge. Some CPs ‘pulse’ the car to keep them awake but that drains the traction battery so charging is less efficient.

The software in cars is more stable and professionally produced and managed than CPs. There are many cases where CP manufacturers (often quite small companies) have not tested software changes against all cars and you end up with a non-working CP. CP manufacturers certainly go bust more often than car manufacturers and at best you will be left with a dumb CP.

With a dumb CP the car can also draw power under exceptional conditions. I came back from a short trip at -9C and on connecting a dumb CP it immediately took 1kW for an hour  to warm the battery up even through no charge was scheduled at that time.

I thought that choosing the car was difficult enough but turned out to be a doddle compared to choosing a CP. If you are adding solar and battery to the mix then all I can say is I hope it turns out well.

Peter

It’s a little more complicated with Charge Anytime as OVO allow either a compatible EV or a compatible charger. 
If charging via a compatible charger (and also if using a system with solar PV) it is important to connect via the charger and not the EV