Mercedes A-Class Forum banner
21 - 40 of 69 Posts

·
Registered
Joined
·
15 Posts
Hello everyone! Is there any other A250e owner here? The only disappointment I had was that it wasn’t equipped with the DC quick charger socket, which would allow to charge it in 30mins, whereas on the manual/websites they show it as available. Have yours got the full DC socket?

thanks!
I’ve had one a week now and the biggest disappointment is the absence of any timers to allow you to charge overnight on economy 7. So Mercedes expect me stay up and plug it in after midnight or miss out on one of the main benefits of the PHEV! Apparently timers are available on the pure electric cars, so I’d like to start a campaign for a software update which adds timers to the PHEVs. My 2015 Mitsubishi Outlander PHEV had a timer for every day of the week and it never occurred to me that a Merc would be less well equipped.
 

·
Registered
Joined
·
90 Posts
You could add a timer to your power supply? If it’s off a separate rcd, you can get a programmable insert or install a timed fused spur (you can manually override both if you need to top up during the day).

Just a thought, to save you getting your slippers dirty!
 

·
Registered
Joined
·
90 Posts
Although, that unit is only 10amp - sure there is something similar out there to suit your needs...
 

·
Registered
Joined
·
15 Posts
You could add a timer to your power supply? If it’s off a separate rcd, you can get a programmable insert or install a timed fused spur (you can manually override both if you need to top up during the day).

Just a thought, to save you getting your slippers dirty!
Thanks Richard, I’m using a timer with the 3-pin plug cable as a workaround but think Merc should address this issue. ( I also have a Rolec charger with a tethered cable and can’t use this with an external timer. )
 

·
Registered
A250e AMG premium Saloon
Joined
·
35 Posts
Be careful if using a plug in 230v timer, it will not be rated to take the full current needed over a long time to charge your battery. I also have an A250e and was bemused by the lack of timer setting in the car. I basically made a timed power supply to my outside garage socket, using a 32A relay, with a simple smart timer that turns the relay on/off during off peak 5p/Kwh night time rate. This way the timer relay only deals with the tiny current needed to drive the main relay. I agree Mercedes should have a charge start/stop time that you can set in the schedule software.... poor show !
 

·
Registered
Joined
·
15 Posts
Be careful if using a plug in 230v timer, it will not be rated to take the full current needed over a long time to charge your battery. I also have an A250e and was bemused by the lack of timer setting in the car. I basically made a timed power supply to my outside garage socket, using a 32A relay, with a simple smart timer that turns the relay on/off during off peak 5p/Kwh night time rate. This way the timer relay only deals with the tiny current needed to drive the main relay. I agree Mercedes should have a charge start/stop time that you can set in the schedule software.... poor show !
So Mercedes have created a safety hazard by making it necessary to use a domestic timer to reach the cheap electricity. Is this another dieselgate I ask! I think they have an easy software fix though. When I first read the instructions i assumed the Set Departure Time option would switch charging on at the right time to get it fully charged for departure. In the Mercedes universe this only switched the seat heaters on. Surely they could add a couple of lines of code to switch the charger on at whatever time is appropriate.
 

·
Registered
A250e AMG premium Saloon
Joined
·
35 Posts
So Mercedes have created a safety hazard by making it necessary to use a domestic timer to reach the cheap electricity. Is this another dieselgate I ask! I think they have an easy software fix though. When I first read the instructions i assumed the Set Departure Time option would switch charging on at the right time to get it fully charged for departure. In the Mercedes universe this only switched the seat heaters on. Surely they could add a couple of lines of code to switch the charger on at whatever time is appropriate.
yes I assumed that the set departure time would initiate a timer function , i’m not stupid but it took me ages to try and figure it out , I finally realised it didn’t .... to be honest I find some of the descriptions bewildering , and I work in technology 😀😀
 

·
Registered
A250e AMG premium Saloon
Joined
·
35 Posts
yes I assumed that the set departure time would initiate a timer function , i’m not stupid but it took me ages to try and figure it out , I finally realised it didn’t .... to be honest I find some of the descriptions bewildering , and I work in technology 😀😀
I still like the car though 😀
 

·
Registered
Joined
·
362 Posts
So Mercedes have created a safety hazard by making it necessary to use a domestic timer to reach the cheap electricity. Is this another dieselgate I ask! I think they have an easy software fix though. When I first read the instructions i assumed the Set Departure Time option would switch charging on at the right time to get it fully charged for departure. In the Mercedes universe this only switched the seat heaters on. Surely they could add a couple of lines of code to switch the charger on at whatever time is appropriate.
It is nothing close to being like diesel gate - it is simply Mercedes not offering a convenience feature on the PHEV range. I have read elsewhere (for other vehicles), that a timer function requires to 'wake-up' the car which can be problematic. Given the MM function/connectivity can be iffy, Mercedes may have decided to leave the functionality out for reliability purposes. However, why not make it an 'onboard' function.... A lot of wall boxes are now available with app based timer functions anyway, that's the way I plan to go soon.
 

·
Registered
Joined
·
15 Posts
I think the Set Departure Timer wakes up the computer to switch on aircon etc, so waking up the charging software as well shouldn’t be too much to ask.

My Merc dealer (Solihull) is playing a blinder! Here’s an additional reply

“I have emailed over this query to Mercedes HQ and awaiting to hear back on this. This can take upto 7 days to hear back from Germany. I totally agree with the logic and agree this should also be a feature on this plug in hybrid also.

I have also requested from them a contact email for engineering team in Germany and product specialists, as I don’t personally have this information ☹”
 

·
Registered
Joined
·
104 Posts
Hello all, great thread/forum some interesting reading. I have just ordered a cla 250e (came here as no one has a 250e on the cla forums yet)! What mode would you 250e "veterans" suggest for a 60 mile (total) dual carriage way work commute. There is a charging point at my work, however, I'm not yet sure if it's free for all to use and may be occasions when it's already in use. Worst case scenario I'll get one way on electric then have to use petrol engine to get home or is there a way to balance the electric and petrol over 60 miles so fuel consumption is optimised? If so what kind of mpg should I expect? Thanks in advance!
 

·
Registered
Joined
·
362 Posts
Probably best leaving it in Eco/Comfort but use the sat nav as the car will use the route to make best use of electric or petrol.

When running on an empty battery, I am seeing around 55mpg.
 

·
Registered
Joined
·
15 Posts
Be careful if using a plug in 230v timer, it will not be rated to take the full current needed over a long time to charge your battery. I also have an A250e and was bemused by the lack of timer setting in the car. I basically made a timed power supply to my outside garage socket, using a 32A relay, with a simple smart timer that turns the relay on/off during off peak 5p/Kwh night time rate. This way the timer relay only deals with the tiny current needed to drive the main relay. I agree Mercedes should have a charge start/stop time that you can set in the schedule software.... poor show !
Have been using a Hive timer-plug for 10 days now and it works well. No sign of overheating and the 10 amp charge refills an empty battery in about 5 hours of economy 7. I notice you can get a small Digital timer to add to the D-rail of the distibution board so that the spur to the 16amp Rolec charger can be time-controlled. Anyone tried one of these?
 

·
Registered
A250e AMG premium Saloon
Joined
·
35 Posts
Not seen that device, I just built my own. Just for info, 10A @ 230v (single phase) is approx 2.3KW neglecting power factor, which gives you 11.5KW over 5hrs. The A250e battery is 15KWh, so you'll only charge to around 75% in 5hrs if the battery was flat.
 

·
Registered
Joined
·
362 Posts
Not seen that device, I just built my own. Just for info, 10A @ 230v (single phase) is approx 2.3KW neglecting power factor, which gives you 11.5KW over 5hrs. The A250e battery is 15KWh, so you'll only charge to around 75% in 5hrs if the battery was flat.
The battery has just under 11kwh of 'usable' capacity. You will never charge the more than that (I would like to know what the other capacity is kept in reserve for).
 

·
Registered
Joined
·
104 Posts
The battery has just under 11kwh of 'usable' capacity. You will never charge the more than that (I would like to know what the other capacity is kept in reserve for).
I belive it helps prolong battery life and a battery that keeps some charge recharges more efficiently.
 

·
Registered
Joined
·
1 Posts
I’ve had one a week now and the biggest disappointment is the absence of any timers to allow you to charge overnight on economy 7. So Mercedes expect me stay up and plug it in after midnight or miss out on one of the main benefits of the PHEV! Apparently timers are available on the pure electric cars, so I’d like to start a campaign for a software update which adds timers to the PHEVs. My 2015 Mitsubishi Outlander PHEV had a timer for every day of the week and it never occurred to me that a Merc would be less well equipped.
Steph
i was also surprised at lack of charger and funnily enough also upgraded from outlander which had it. I’m on octopus agile (cheap overnight) and got dumb charger. The workaround is an ohme lead which does all the timing trickery at the off peak times.
 

·
Registered
2020 A250e
Joined
·
28 Posts
Hi all. Just got my A250e on Monday. Local dealer says they can install DC charger for 1200 SEK (GBP 105). Anything I should think of? We have no charger at home so need fast charging. What's the risk of charging with DC?
 
21 - 40 of 69 Posts
Top