GerritKw

Is this repeatable? The air-conditioning could at least have some influence, but not as much as the heating does.
I presume you are driving in a relaxed way. The driving style is a huge influencer on the range.
You could go to the garage and let them check the battery.

JIMSHANN

I believe MB should offer an explanation as to what the system does and how it works.
After a year of owning a C350e I have come to the conclusion that the mileage shown, at "Full Charge" is the best you can expect based on the previous day's operation. i.e. it expects you to drive under the same conditions as previous.
If I have driven very carefully, the previous day it shows a higher potential mileage. If I have driven "furiously" then it shows much less.
I think it does not take into account the use of aircon and lights etc.

The 31kms that MB claim has never been achieved. As with most people the "Full Charge" shows 21km and immediately drops as soon as I drive away.
Despite all of this, over 9,000kms I have achieved less than 7l/100kms (45MPG Imperial) and am quite happy with this.
I don't think anyone with a C250 would achieve that in normal driving and would certainly not have the acceleration and torque that the C350e gives.

aaron ong

yep. I can understand full charge show 17km-21km less value, i can not accept is only 50% achieved from already est. Less value! Seem nobody have idea, been to dealer same no answer.. where the car giving ard 10km full charge.. i accept if full charge show me 10km.. but it show again 18km-21km, ..

JIMSHANN

You seem to be doing a lot of complaining, but, you haven't mentioned what your overall fuel consumption is. Remember the car charges when you brake, or, go downhill.
Switch the car to the mode where you can see where the energy is being distributed. You will see that it, also, charges as well as discharges.

In my mind it is the overall fuel usage that matters. As I said, I don't think a standard C250 would give the same economy if driven the same way. (it has the same engine, without the extra motor power and torque, hence poorer acceleration.)

GerritKw

I have a fuel economy of 6.5l/100km and i am driving approximately 200km a day. Sometimes i am able to charge twice. In weekends i drive a lot of short trips.
I am sure a regular C250 isn't able to do this under the same conditions.

Mbracer26

Does your gas pedal feel sticky or spongy when you press down on it?

JIMSHANN

Mine feels perfectly normal.

GerritKw

The gas pedal is giving haptic feedback.
When you drive in pure electrical mode it has a pressure point just before it wants to switch on the combustion engine. This helps you to stay in electrical mode.
Secondly when driving in Eco mode it gives a short vibration in the pedal (feels like the car is pushing the pedal a bit back) to indicate that you are approaching a car in front of you and that you can let the car coasting by taking your foot of the pedal.

Maybe that is what you are experiencing.

Mbracer26

Thank you for that explanation, but I know what the heptic feedback is. With even the car being off, when you press down on the pedal it doesn't feel smooth, its like not lubricated and feels spongy and sticky. reported it on the service and they said its operating as normally and even said it could have been due to the check engine light issue. Not even related.

tralalak

Yes! I think MB lowered the charge limit of the battery for whatever reason. In 2015 when I got the car, I could easily do 29 km. Today, with exactly the same configuration and external conditions, I do 21 km. The change was sudden. The charge cycle takes 5.0 kWh from the wall. There is 10% charge left in the battery always, but even then, the 5.0 kWh from the socket can never reach (efficiency around 85%) the claimed 6.2 kWh capacity.

The car was doing great the first year. Then it changed to the same state as all of you observe as well. I think that MB is doing some **** behind our backs.

Bent87

I have never got more than 22km on my C350e in summer and 15 in winter. This is in Norway. -10C to 5C in winter and 10C to 28C in summer.
My record for fuleage is 4L/100km, but have around 6L/100km in 60h. Have done some upgrading in garage so not charged is that much actual.
But ye.... disepointed about what said and what is proven by battery kms!
Need to say that I am relay happy with the C350e in all other ways!

Garyfbne

Dear Jim Shann

Your question was very clear and either not read / taken on tangents.by soem , not all

I am in BNE, and just got mt C350e 3 weeks ago - and have the same issue . Mind you mine was a 2018 demonstrator. thats 8 months old

dealer failed miserably in pre delivery - reset nothing - phones on BT, "home' on map, let alone gear change style history and whatever drives the Hybrid klm range


A full charge - 100% on one screen = 20 to 24klm. and that drops by 2 klm within 500 metres.. In the end 14klm of careful driving

different chargers make no difference

Dealers clearly make up stories that sound possible, but not based on any actual manual or facts ( when put to the test their explanation turns to water)

I am familiar with battery warranties for home systems - LG Chem Tesla etc etc. So I have been asking for the exact terms and testing procedure for the MB Battery - only to be met with a wall of "I don't know" or " we will see at the time"

I haven't given up on this.

So perhaps lets get in touch - an AU C350e group to compare notes as warranties come into effect? Esp as AU consumer law is different.

regards

Gary

Garyfbne

Im not a chemical or electrical engineer, but i work with them and are familiar with house batteries that you might add to a solar system.

The same chemistry in you mobile phone lasts a year or maybe 2.. But in a 10kwh home battery closer to 10.years. How / why ?

Im told its because the home battery manages its charges, it wont go down to zero - maybe 10% ( which is what I see on my C350e) and I think they also dont charge to 100% either

SO - perhaps software is severely limiting our range so that battery life expectancy is increased..


I assume that the battery capacity issue you report above started after a software upgrade?
Gary

dwpc

Agree. The dealer should have the ability to both fully charge the hybrid battery and to measure that charge. A well-engineered battery should not lose significant capacity at 30C;a common temp in most markets.