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Kyiv
st. Hetman Pavel Skoropadsky, 63 (Vokzalnaya)
Мережа СТО в місті
Kyiv
st. Hetman Pavel Skoropadsky, 63 (Vokzalnaya)
Мережа СТО в місті
Години роботи Daily from
08:00 - 20:00
Check Engine light on, increased fuel consumption or jerky engine operation? These may be symptoms of Mercedes M256 (3.0) engine malfunctions. At MB Master service in Kyiv we will professionally carry out diagnostics, clean the intake, change the oil, check the phase regulators and eliminate problems quickly and reliably.
st. Hetman Pavel Skoropadsky, 63 (Vokzalnaya) 
Daily from 08:00 - 20:00 What are the typical symptoms of malfunctions?
1. Loss of power, jerking during acceleration
2. Check Engine Light
3. Unstable engine operation
4. Increased fuel or oil consumption
Prevention and recommendations
1 Use only AI-98 fuel.
2 Oil change 5W-30 (8.5 liters) – recommended every 7–10 thousand km.
3 Check the oil level regularly.
4 Don't delay visiting the service center if the Check Engine light or increased fuel consumption appears.
5 Follow the manufacturer's recommended service intervals.
The 3.0-liter 6-cylinder Mercedes M256 engine has been produced since 2017 and is installed on the most powerful and expensive models of the company, such as:
This modern engine belongs to the R6 line (along with M103 and M104), has an aluminum block and cylinder head, timing chain drive, direct fuel injection and ISG 48V system. There are versions with one turbo (M 256 E30 DEH LA GR, 367 hp, 500 Nm) and with a turbo and an additional electric compressor (M 256 E30 DEH LA G, 435 hp, 520 Nm). It is known for its power and efficiency.
So far, the statistics of M256 malfunctions are limited due to its relative novelty, however, given the design features and experience with other engines of the modular series, potential issues can be identified:
1. Carbon deposits on the intake valves
Through the direct injection system, the fuel does not wash the intake valves, which over time leads to the formation of carbon de
posits. This can lead to unstable engine operation and reduced efficiency.
We recommend periodically performing non-disassemblable cleaning of the intake tract to prevent this problem.
2. Camtronic Phase Regulators May Fail
There have been cases of Camtronic phase regulator failure on other Mercedes modular engines. Although this is not yet a
common problem for the M256, you should pay attention to any changes in engine operation that may indicate a malfunction of this system.
3. Presence of a Diesel Particulate Filter for Gasoline Engines
This engine, like some other modern gasoline units, is equipped with a diesel particulate filter (GPF). A dirty or clogged filter can lead to a drop in power and increased fuel consumption.
It is important to follow the fuel and maintenance recommendations to ensure its efficient operation
Average rating according to our customers
The work was done neatly, without unnecessary imposed work. The engine is running stably, fuel consumption has normalized.
I contacted another service station after an unsuccessful repair. They quickly found the cause and fixed it. Now the engine works perfectly.
I was pleasantly surprised by the speed of service and the transparency of the work. They kept me informed about the progress of the repair. The result is excellent.
The work was done neatly, without unnecessary imposed work. The engine is running stably, fuel consumption has normalized.
I contacted another service station after an unsuccessful repair. They quickly found the cause and fixed it. Now the engine works perfectly.
I was pleasantly surprised by the speed of service and the transparency of the work. They kept me informed about the progress of the repair. The result is excellent.
Not long ago a car air-conditioner was a luxury item, now it is a necessary condition for comfortable travel. In technical specifications, a car A/C is similar to its household counterparts, but there are still some differences.
Need to calibrate your air suspension? МВ-Master specialists will quickly and accurately diagnose, adjust, and adapt your air suspension system for a stable and comfortable ride.
The MB Master network of car services presents you with a new opportunity – a loan or installment plan for our services.
If you feel jerks, a burning smell, a strange crunch while driving, or the pedal does not return - do not hesitate. We work with original spare parts, provide a guarantee and ensure honest diagnostics. Sign up online or call - we will take care of your car professionally.
Does your car need diagnostics? МВ-Master auto mechanics will perform diagnostics and quickly identify problem or weak points in your car. We conduct scheduled and unscheduled diagnostics (before selling or after buying a car). Timely computer diagnostics of your car is the key to your safety!
Checking engine compression at MB Master car service is a quick and reliable way to detect engine wear and avoid expensive repairs. Sign up for one of our services in Kyiv or Odessa today and make sure your car is in good condition!
Why does a car need climate control? It cools the air, removes unpleasant odors from the cabin, absorbs moisture. Because of an A/C malfunction the engine can overheat, fuel consumption rises, and condensate builds up.
