How long do Mercedes engines last?

Mercedes-Benz makes some of the most powerful engines on the market. However, not all Mercedes engines are exceptional as some are more reliable than others. Regardless, how long do Mercedes engines last?

Most Mercedes engines last for more than 200,000 miles. But if you don’t care for your car properly, it may not even make it to 155,000 miles, which is Mercedes’ high mileage. Besides, some Mercedes engines are more durable and reliable than others. So, the engine your Benz is equipped with is extremely vital.

Some Mercedes-Benz models like the E-Class are fitted with one of the best Mercedes engines. Hence, if you intend to have a Mercedes with an engine that lasts long, consider getting one with a reliable engine. Apart from the engine’s reliability, your driving habits, maintenance schedule, and quality of oil you use also determine how long your engine lasts.

Most common types of Mercedes engines

Like any car manufacturer, Mercedes also manufacturers different types of engines that are used in the different car makes and models. To help you select the best Mercedes engine, we’ve highlighted the most popular Mercedes engines and their issues. These are as follows:

Mercedes-Benz 111, 112, 113, V4, V6, and V8 engines

These Mercedes engines were used between the late 1990s and the late 2000s. They are some of the most reliable Mercedes-Benz engines to be ever built. They can do over 300,000 miles and experienced fewer issues. Some of their notable problems included oil leaks, valve cover gasket leaks, and rear main seal leaks.

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Mercedes-Benz 272, 273, V6, and V8 engines

These engines can be found normally on late Mercedes V6 and V8 models. The engines utilize advances in camshaft timing and variable valve lift. As a result, the engines perform outstandingly and maximize fuel economy. What’s more, these engines experience fewer problems than other Mercedes engines.

Mercedes-Benz Bluetec engines

Mercedes-Benz Bluetec engine is among the most advanced engines on the market. This engine has bridged the gap between gas and diesel engines. However, this engine also has its usual problems, which include oil leaks from the engine oil cooler seals, the valve cover gaskets, and the turbocharger intake seals.

How do I prolong the lifespan of my Mercedes engine?

If you want to prolong the lifespan of your Mercedes-Benz, there are several things that you need to do. These include:

  • Using the right engine oil – make sure to use the right engine oil in your Mercedes. Check your Mercedes owner’s manual to know which oil to use.
  • Not skipping Mercedes schedule service maintenance – Mercedes has two maintenance schedules; service A and service B. Ensure you don’t miss any of these services to prolong the lifespan of your engine.
  • Driving the car carefully – your driving habits will determine if your engine lasts longer or not. S, drive it carefully and don’t misuse the car.
  • Cleaning air filter – keep your air filter clean as the engine needs to breathe. If you fail to clean the air filter, the engine won’t get enough air into the combustion chambers, making t to strain.


Are Mercedes-Benz engines reliable?

Yes, they are. When compare Mercedes to other luxury cars, you will find that their engines are on par and even better with some luxury car engines. Mercedes engines are rated 3 out of 5, which above average. But unlike other luxury cars such as Porsche, BMW, and Audi, Mercedes is cheaper to maintain and repair.

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At what mileage do Mercedes start having problems?

Mercedes-Benz produces some of the most reliable vehicles on the market. But like all vehicles, Mercedes also develops issues after some miles. Since there are many Mercedes models on the market, some develop problems faster than others. Some Mercedes models develop problems as early as 50,000 miles, while others will wait up to 100,000+ miles to develop issues.

The most reliable Mercedes model is the E-Class. This car is very reliable and registers the fewest problems among Mercedes cars. In contrast, the least reliable Mercedes-Benz model is the C-Class. Before buying a C-Class, ensure that you get a more reliable trim.

What are the common Mercedes-Benz problems before 100,000 miles?

Several Mercedes models develop problems before they even hit 100,000 miles. However, the problems that different Mercedes models experience vary from one model to another. So, before you purchase your favorite Mercedes model, find out some of the issues that you’re likely to face.

Some of the common Mercedes problems before 100,000 miles include issues with sway bar links, catalytic converters, control arm bushings, ignition failure, ball joints, and tie rods. Most of these issues are minor and easy to fix. Besides, these problems are common on some Mercedes models.

At what time should I buy a new engine instead of rebuilding?

Even though rebuilding the engine is a good idea in some situations, it can be a bad idea in others. For instance, if you have to replace the entire transmission system or have a head gasket leak at the cylinder, you don’t need to rebuild the engine. In such cases, buying a new engine is better and cheaper.

Changing a Mercedes transmission alone will cost you at least $2,000. The price can shot up if you’re changing a transmission on a high-end Mercedes model such as the S-Class or GLS-Class. And if you add the cost of service, you may end up spending more.

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What is considered high mileage on Mercedes-Benz?

Mercedes-Benz awards its customers when they hit certain miles. The first high mileage for Mercedes-Benz is 155,000 miles. When you log in these miles, Mercedes-Benz will give you a classic high mileage award. Note that these miles are normally verified by an official Mercedes-Benz dealer.

Other Mercedes high mileage awards are provided when your car hits 310,000 miles, 466,000 miles, 621,000 miles, and 1,000,000 miles. So, Mercedes considers 155,000 plus to be high mileage. Most Mercedes models hit these miles if properly maintained and serviced.

What is the Mercedes diesel engine life expectancy?

Diesel Rule 1: NEVER buy high mileage. That said, the diesel engine life could be a lot longer. Experts estimate that the diesel engine can last 300,000. In some cases, 500,000 miles. The body will not rust due to the mild climate in California. This car will last for 30 years without any problems. Oehler’s older models are simpler.


If you maintain your car properly and don’t skip Mercedes-Benz service A and service B maintenance schedules, your car will last for more than 200,000 miles. However, some Mercedes engines are more reliable than others. That’s why cars like the Mercedes-Benz E-Class are more reliable than others.

Apart from the engine’s reliability, other factors that determine the longevity of your Mercedes engine include your driving style, how often you clean your air filter, how you respond to warning lights, the quality engine oil you use and driving conditions. If you don’t observe these factors, your engine won’t last long.

Edwin Odipo

Why do you love writing about cars? Cars make our lives easy. You can visit your distant friend, relative or even rush to the grocery store a few miles from your home with a lot of ease. Imagine how life was before the invention of cars?? To me, cars are a blessing that made life more convenient.

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