The Most Reliable Mercedes V8 Engine, Ranked

Voting rules: Choose the engine you think is the most reliable!

Updated on Apr 30, 2024 06:56

For avid car enthusiasts and potential buyers, knowing which Mercedes V8 engine stands the test of time and performance can be incredibly valuable. The satisfaction of driving coupled with the assurance of reliability creates a seamless blend of luxury and practicality. This is particularly significant when choosing among high-end vehicles, where investment and expectations are both high. By participating in the ranking process, users contribute to a comprehensive community-generated database that aids others in making informed decisions. Each vote helps paint a clearer picture of which engines deliver the most enduring value and performance. It's not just about casting a vote; it's about shaping a resource that benefits the whole community of Mercedes enthusiasts.

What Is the Most Reliable Mercedes v8 Engine?

1

56
votes
M113K

This supercharged V8 engine is known for its reliable performance and high power output. It is used in a variety of Mercedes-Benz models and has proven to be a popular choice among enthusiasts.
The M113K is a high-performance V8 engine developed by Mercedes-Benz. It is known for its reliability and powerful performance.

Displacement: 5.4L

Type: Supercharged V8

Power: 469 hp - 617 hp

Torque: 516 lb-ft - 738 lb-ft

Compression Ratio: 8.9:1
2

25
votes
M156

The M156 is a naturally aspirated V8 engine that was used in the Mercedes-Benz SLS AMG. It is known for its smooth power delivery and reliability, making it a popular choice among high-performance enthusiasts.
The M156 engine is a high-performance naturally aspirated V8 engine developed by Mercedes-AMG. It is considered one of the most reliable V8 engines produced by Mercedes-Benz.

Displacement: 6.2 L

Cylinder Configuration: V8

Valvetrain: DOHC

Power Output: 451 hp to 518 hp

Torque: 443 lb-ft to 465 lb-ft
3

31
votes
M278

This twin-turbocharged V8 engine is used in a variety of Mercedes-Benz models and is known for its smooth power delivery and reliability. It is also relatively fuel-efficient, making it a popular choice for luxury SUVs and sedans.
The M278 is a powerful and reliable V8 engine manufactured by Mercedes-Benz. It is part of the M-Class series of engines and has gained a reputation for its performance and durability.

Engine Type: V8

Displacement: 4.7 liters

Power Output: 402 horsepower

Torque: 443 lb-ft

Valvetrain: Dual overhead camshaft (DOHC)
4

24
votes
M119

The M119 is a naturally aspirated V8 engine that was used in a variety of Mercedes-Benz models. It is known for its reliability and longevity, making it a popular choice among enthusiasts.
The M119 is a renowned Mercedes-Benz engine known for its reliability, power, and smooth performance. It belongs to the Mercedes-Benz M-Class of engines and has gained popularity among enthusiasts and car owners for its durability and longevity.

Engine type: V8

Displacement: 4.2L or 5.0L

Valvetrain: DOHC

Fuel system: Bosch KE-Jetronic fuel injection

Power output: 275-375 horsepower
5

22
votes
M113

The M113 is a naturally aspirated V8 engine that was used in a variety of Mercedes-Benz models. It is known for its reliability and smooth power delivery, making it a popular choice among enthusiasts.
The M113 is a highly regarded and reliable V8 engine developed by Mercedes-Benz. It is a naturally aspirated engine and has earned a reputation for its performance and durability.

Engine type: V8

Displacement: 4.3-5.5 liters

Valvetrain: SOHC 3 valves per cylinder

Power output: 275-507 horsepower

Torque: 295-531 lb-ft
6

12
votes
M177

This twin-turbocharged V8 engine is used in the Mercedes-AMG GT and other high-performance models. It is known for its smooth power delivery and reliability, making it a popular choice among enthusiasts.
The M177 is a powerful and reliable V8 engine developed by Mercedes-Benz.

Displacement: 4.0L

Configuration: V8

Fuel Type: Gasoline

Power Output: Up to 503 horsepower

Torque: Up to 516 lb-ft
7

12
votes
M159

The M159 is a naturally aspirated V8 engine that was used in the Mercedes-Benz SLS AMG. It is known for its high power output and reliability, making it a popular choice among high-performance enthusiasts.
The M159 is a high-performance V8 engine developed by Mercedes-AMG.

Engine type: V8

Displacement: 6.2 L

Power output: approximately 507 hp

Torque: approximately 457 lb-ft

Cylinder arrangement: V8 (90°)
8

5
votes
M120

The M120 is a naturally aspirated V12 engine that was used in the Mercedes-Benz S-Class and CL-Class. While not a V8, it is known for its reliability and longevity, making it a popular choice among enthusiasts.
The M120 engine is a highly regarded V8 engine produced by Mercedes-Benz. It is known for its exceptional performance, durability, and smooth operation.

Engine Type: V8

Displacement: 6.0 or 7.0 liters

Power Output: 394 - 618 horsepower

Torque: 580 - 738 lb-ft

Valvetrain: DOHC, 4 valves per cylinder
9

7
votes
M275

This twin-turbocharged V12 engine is used in the Mercedes-Benz S-Class and other luxury models. While not a V8, it is known for its smooth power delivery and reliability, making it a popular choice for high-end luxury cars.
The M275 is a renowned V8 engine produced by Mercedes-Benz. It is widely regarded as one of the most reliable engines in the Mercedes lineup, offering a powerful and smooth performance.

Engine Type: V8

Displacement: 5.5 liters

Aspiration: Twin-turbocharged

Power Output: 500+ horsepower

Torque: 700+ lb-ft
10

6
votes
M137

The M137 is a naturally aspirated V12 engine that was used in the Mercedes-Benz S-Class and CL-Class. While not a V8, it is known for its smooth power delivery and reliability, making it a popular choice among luxury car enthusiasts.
The M137 is a V8 engine developed by Mercedes-Benz.

Engine type: V8

Displacement: 5.5L

Power output: 367-500 horsepower

Torque: 530-800 Nm

Configuration: DOHC (dual overhead camshaft)

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Discussion

Ranking factors for reliable engine

Maintenance

The maintenance history and regularity of maintenance can greatly impact the reliability of an engine.
Design and build quality

The design and build quality of the engine can determine how durable and long-lasting it is.
Age and mileage

The age and mileage can give an indication of how well the engine has held up over time.
Driving conditions

Extreme driving conditions such as high temperatures or heavy traffic can impact the reliability of an engine.
Driver behavior

The driver’s habits, such as aggressive driving or neglecting maintenance, can also impact the durability and reliability of the engine.
Known issues

Familiarity with known issues and recalls for a particular engine can give an indication of potential issues to look out for.
Consumer feedback

Finally, consumer feedback and reviews can offer valuable insight into the real-world performance and reliability of a Mercedes V8 engine.

About this ranking

This is a community-based ranking of the most reliable Mercedes V8 engine. We do our best to provide fair voting, but it is not intended to be exhaustive. So if you notice something or engine is missing, feel free to help improve the ranking!

Statistics

3338 views
190 votes
10 ranked items

Voting Rules

A participant may cast an up or down vote for each engine once every 24 hours. The rank of each engine is then calculated from the weighted sum of all up and down votes.

More information on most reliable mercedes v8 engine

When it comes to luxury cars, Mercedes-Benz has always been a top contender in the market. Known for their sleek designs and high-quality performance, Mercedes vehicles have always been a symbol of class and sophistication. One of the key components that sets Mercedes apart from other luxury brands is their V8 engine. The Mercedes V8 engine has a reputation for being a reliable and powerful engine that can withstand the test of time. These engines are known for their smooth operation and impressive acceleration, making them a popular choice among car enthusiasts. Over the years, Mercedes has produced several V8 engines, each with their own unique features and capabilities. From the M113 engine used in the early 2000s to the newer M177 engine used in the latest models, Mercedes has consistently delivered on their promise of high-performance engines that are built to last. So, what is the most reliable Mercedes V8 engine? While opinions may vary, many car enthusiasts point to the M156 engine as being one of the best. Used in the Mercedes C63 AMG, this engine has a reputation for being a powerhouse that can deliver impressive performance while still being reliable and durable. No matter which Mercedes V8 engine you choose, one thing is for certain: you can trust that you're getting a high-quality engine that will deliver the performance and reliability that you expect from a luxury car.