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Discussion Starter · #1 ·
ok after a week am trying to work out how to best drive the beast. I do not have a maintenance plan so am not too keen of haivng ot fork out for new brake pads and the weight of the car makes itself known on braking.
I have used d auto but also quite like d using the paddles to use d- or d— to slow down reserving the brake for any final fine adjustment. d auto seems a bit late in braking.
so any thoughts or advice welcome. I leave it in comfort mode at the moment suits me fine.
 

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I tend to go straight to D-Auto, but then if I can see I'm going to need to brake up ahead I'll manually pop it into D- or D-- then back into D-Auto once I've started moving again
 

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Although still a relative novice, and still experimenting, on dual carriageway or motorway, I just used d auto. On rural country roads I use d-. D- - is a bit strong for me, although if by myself, is fun to flip around the options
 

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Discussion Starter · #4 ·
I tend to go straight to D-Auto, but then if I can see I'm going to need to brake up ahead I'll manually pop it into D- or D-- then back into D-Auto once I've started moving again
thats what i did the other day seems a good idea and if someone else has the same thoughts it is always comforting. On another ev forum there are discussions about the need to use the brakes ocasionally to keep the rust and glazing at bay but I was wondering if mercedes still had the system for removing excess water in heavy rain and if that would be enough? Frankly as I lease it does not reslly matter of course🤣 but getting the best efficiency is of interest.
 

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Discussion Starter · #5 ·
An update 6 weeks in d auto every time now. Mercedes have got it sorted it makes for a relaxing drive as efficient as possible. Have got used to its braking charatersitics and just let it do its thing. Am very pleased with the efficiency though that is dropping a bit as temps drop but to be expected. Mercedes may have been late to the party but they have made a really good effort, as the initial advertising said electirc finally has a mercedes😉
 

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I just put it into D+ and let it sail. Or Dauto, then its D+ with automatic change to D if there is a car ahead or speed must be reduced. Anyway, when you press a brake pedal, the brakes are not used, its engine slowing the car by returning its kinetic energy back to battery. Most important rule is to try to do less intensive slow down over longer distance, i.e. energy back at 20% over 30 seconds is more efficient than energy back at 60% over 10 seconds. D mode gives -20% of braking by using motor as generator when gas pedal is not pressed. D- for me is only good for going down the long hill, if you do not like to keep brake pedal a bit pressed and do not use autopilot. D-- is brake and gas in one pedal, I prefer to use 2 pedals. The alternative way to achieve D+ sailing in D mode is to keep gas pedal a bit pressed, then it sails, if you press the gas exactly to the point where energy to/from battery is shown as 0%. This is personal taste, I find it more convenient to press brake pedal if slow down is needed rather that keeping gas pedal a bit pressed in order to keep the car sailing. The end result is the same, you see it in % of energy taken or returned to the battery, and the economy driving rule is to slow down equally over remaining distance, and also accelerate slower. Sailing, instead of slowing then accelerating, is more efficient, that is why I use D+.
Personally, I find that ECO mode is best for me. In that mode the accelerator pedal has a good intermediate "stop point" and it needs to be pushed a bit harder to accelerate above the "normal" level, and that reminds me not to press it more just accidentally. After using a petrol car, if you press gas to the bottom in Comfort mode, the EQC400 becomes a rocket and the tempo of acceleration may scare passengers, if they are unprepared for such a huge 300kW traction power. As my wife says, on this car you cannot press gas to the bottom when driving home after large dinner. Great car.
 
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