The Mercedes E-Class is famous for its luxury and cutting-edge technology.
Whether you go with the budget-conscious E200d or splurge on the performance-oriented E63s AMG, there’s an E-Class available for anyone.
But if your biggest concern is minimizing your spending at the pump, which E-Class is the most fuel-efficient?
To help you find out, we’ll compare various Mercedes E-Class models, from small petrol to luxurious plug-in hybrid, to find which best fits your needs.
Let’s get started!
4 Mercedes E-Class models with the lowest fuel consumption
In this article, we will try to find the most fuel-efficient Mercedes E-Class models.
Before we start, here is an overview of the most fuel-efficient Mercedes E-Class models:
|E-Class||Fuel type||Engine||Claimed Fuel Efficiency||Real-world Fuel Efficiency||Power|
|E200||Petrol||2.0T||7.2 L/100 Km|
39 MPG UK
33 MPG US
|7.80 L/100 Km|
36.2 MPG UK
30.2 MPG US
|E200d||Diesel||1.6T||4.9 L/100 Km|
58 MPG UK
48 MPG US
|6.0 L/100 Km|
47.1 MPG UK
39.2 MPG US
|E300e||Plug-in hybrid petrol||2.0T||1.6 L/100 Km|
177 MPG UK
147 MPG US
|5.66 L/100 Km|
49.9 MPG UK
41.6 MPG US
|E300de||Plug-in hybrid diesel||2.0T||1.2 L/100 Km|
235 MPG UK
196 MPG US
|4.67 L/100 Km|
60.5 MPG UK
50.4 MPG US
1. The most fuel-efficient petrol: W213 E200
Let’s start with the most efficient Mercedes E-Class with a petrol engine, the W213 E200!
The W213 generation of the Mercedes E-Class has been in production since 2016, but it received a facelift in 2021.
The E200 is equipped with a turbocharged four-cylinder petrol engine, capable of returning an official combined fuel economy of 7.2 L/100 Km / 39 MPG UK / 33 MPG US, despite having a power output of 197 horsepower.
However, as we all know, the claimed fuel economy of a car can be a whole lot different compared to what you can actually achieve in practice.
So, how good is the Mercedes E200’s fuel efficiency in the real world?
To check this, we will use Spritmonitor.de, where car owners monitor their fuel consumption and add them to the database.
When filtering on the W213 Mercedes E200, we see an average fuel consumption of 7.80 L/100 Km / 36.2 MPG UK / 30.2 MPG US, which is quite close to the claimed fuel economy!
Here is an example of the fuel consumption experienced by a single owner over a distance of 17,002 kilometers:
2. The most fuel-efficient diesel: W213 E200d
The W213 E200d is a marvel of efficiency.
Using a turbocharged four-inline diesel engine, the E200d’s claimed combined fuel economy is 4.9 L/100 Km / 58 MPG UK / 48 MPG US.
Because of this great fuel economy and a 66-liter fuel tank, the E200d can get over 1,300 kilometers / 800 miles on a single tank, making it one of the most fuel-efficient cars on the road.
But do these claimed figures represent the real world? Let’s take a look!
Spritmonitor shows that E200d owners are achieving about 6.0 L/100 Km / 47.1 MPG UK / 39.2 MPG US. Yes, it’s not as good as claimed, but it’s still great for its class!
Reader’s tip: The Mercedes E200 and E220d are often confused with each other, so check out this article if you’re interested in all their differences!
3. The most fuel-efficient plug-in hybrid petrol: W213 E300e
The W213 E300e is the most fuel-efficient plug-in hybrid petrol Mercedes E-Class on the market.
It allows drivers to enjoy all the convenience and luxury of an E-Class while benefiting from lower fuel consumption.
The E300e features a 2.0-liter petrol engine combined with an electric motor powered by a 13.5 kWh lithium-ion battery for a maximum system output of 320 horsepower and a peak torque of 700 Nm.
The E300e offers exceptional efficiency with an official combined fuel economy of up to 1.6 L/100 Km / 177 MPG UK / 147 MPG US.
Of course, you will only achieve these incredible figures if you keep the battery charged and don’t consume a lot of fuel.
But with a claimed electric range of 53 km / 33 miles, most people will use the petrol engine frequently as well, which is the reason why the real-world fuel economy of the E300e is a bit different:
As you can see, the average fuel economy of the E300e is 5.66 L/100 Km / 49.9 MPG UK / 41.6 MPG US. (Still, it’s much better than the petrol E200!)
4. The most fuel-efficient plug-in hybrid diesel: W213 E300de
The W213 E300de is the most fuel-efficient plug-in hybrid diesel Mercedes E-Class, featuring a powerful diesel engine that operates almost silently and provides smooth acceleration.
With its combination of efficient gas consumption and electric battery power, drivers can take advantage of short-range all-electric driving and long trips with optimized fuel economy.
Tip: Did you know you can activate a ‘HOLD’ feature for the automatic gearbox on an E-Class? To learn how it works, check out this article about tips for the Mercedes E-Class!
The E300de features a turbocharged 2.0L diesel and electric motor, enabling a claimed fuel consumption of 1.2 L/100 Km / 235 MPG UK / 196 MPG US.
So, is the real-world data also this positive?
Let’s take a look:
The Mercedes E300de achieves an average fuel economy of 4.67 L/100 Km / 60.5 MPG UK / 50.4 MPG US. This makes the E300de the most fuel-efficient Mercedes E-Class!
How much does it cost to fill up a Mercedes E-Class?
Driving a luxury car like the Mercedes E-Class can be expensive, and not just upfront.
So, if you’re wondering how much it costs to fill up a Mercedes E-Class, we will try to give you an answer here!
The cost to fill up a Mercedes E-Class can vary greatly depending on the size of the fuel tank and current gas prices in your area.
The Mercedes E-Class with the smallest fuel tank is the E300e, with a tank capacity of 50 liters / 11 UK gallons / 13.2 US gallons. Meanwhile, the E63 AMG has the biggest fuel tank, with a capacity of 80 liters / 21.1 UK gallons / 17.6 US gallons.
Gas prices in the US and Europe typically range between $1 to $2 per liter.
So, filling up a Mercedes E-Class can cost anywhere from $50 to $160. This depends on the specific model of your E-Class and the gas prices in your area.
Which Mercedes E-Class engine is the best?
If you’re in the market for a Mercedes E-Class, you’ll have plenty of engine options.
So, if you’re looking for a balance between the best reliability, fuel efficiency, and performance, which Mercedes E-Class engine is best?
The 2.0-liter turbocharged inline-four engine on the E300e is the best engine overall on the Mercedes E-Class. It is environmentally friendly, has great fuel economy, and is powerful and fast.
The E300e uses a 2.0-liter petrol engine and an electric motor to produce a total of 320hp. It’s quick and refined, with the ability to cruise silently on electric power alone for up to 56 kilometers or 35 miles!
Even though the E300e has ‘just’ a 2.0, it doesn’t lack anything on the performance end. Its 320 horsepower allows it to accelerate from 0 to 62 mph in 5.2 seconds, almost as quick as the E450.
For more information, take a look at our article: Which Mercedes E-Class Engine Is Best In 2023? (+2 To Avoid)
If you’re looking for a fuel-efficient Mercedes E-Class, any models on this list will serve you well.
The most fuel-efficient petrol model is the W213 E200, while the most efficient diesel is the W213 E200d.
If you’re interested in a plug-in hybrid, the most efficient options are the W213 E300e (petrol) and the W213 E300de (diesel).
As for how much it costs to fill up a Mercedes E-Class, that will depend on which model you choose as well as current gas prices. It can be anywhere from $50 to $120!
And if you would like to learn more about the E-Class, check out our ten pros and cons that can help you determine if an E-Class is worth it in 2023.
Let us know in the comments if you have any further questions, and have a great rest of your day!