Bohdan
2024-05-28
I contacted them because of extraneous noise in the M271 engine. They conducted diagnostics, quickly found the cause, and fixed the problem. The engine runs quietly and stably.
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Kyiv
st. Hetman Pavel Skoropadsky, 63 (Vokzalnaya)
There's a slight squeal, there's no traction or the Check Engine light is on? These are typical symptoms of problems with the timing belt, valves and ventilation system. The MB Master service specializes in repairing Mercedes M271 engines - quickly diagnoses, detects malfunctions, and supplies original spare parts.
What are the most common malfunctions of the Mercedes M271 engine and how to detect them?
1. Timing belt tensioner
2. Replacement of balancer shafts and couplings Balancer Shaft
3. Coking of valves through direct injection
4. Oil leak from valve cover and seals
What is prevention?
1 Oliva 5W-30 or 5W-40 - replacement of leather 10–12 thousand. km
2 Sparkling candles - once every 60 thousand. km
3 Clean the filter - once every 15 thousand. km
4 Dust filter - once every 120 thousand. km
5 Checking the timing belt and phase regulators - after 100 thousand. km
6 Use bright gasoline no lower than AI-95 (for versions with direct injection)
7 Don’t ignore Check Engine - timely diagnostics to prevent serious breakdowns
Mercedes M271 4-cylinder petrol engines were produced from 2002 to 2015 and were installed on popular mid-range models.
These are reliable aluminum engines with supercharging and timing chain drive. After 2009, upgraded EVO versions with direct fuel injection appeared.
1. Timing chain stretchingEngine repair M271Engine repair M271
Often occurs after 100 thousand km.
Symptoms: extraneous sounds, loss of synchronization, Check Engine lamp.
Our workshop performs a complete replacement of the timing belt kit with phase regulators.
2. Hanging of the exhaust valves due to carbon deposits

The problem is especially typical for engines with indirect injection.
Symptoms: detonation, dips in traction, loss of power.
We clean the valves without disassembling the cylinder head quickly and efficiently.
3. Lubrication sources
Common places – oil filter gasket, heat exchanger, valve cover.
Signs: burning smell, oil stains, low oil level.
We quickly eliminate all sources of leaks, use original seals.
4. Contamination of crankcase ventilation
Can cause increased pressure and rupture of plastic tubes.
We check the system at each maintenance, clean and replace components.
5. Gasoline in the oil (EVO version)
Occurs due to problems with injectors or violations of engine operating modes.
Symptoms: a sharp decrease in oil viscosity, the smell of gasoline.
We quickly diagnose and eliminate the source of the problem, monitor the oil level.
I contacted them because of extraneous noise in the M271 engine. They conducted diagnostics, quickly found the cause, and fixed the problem. The engine runs quietly and stably.
Very satisfied with the service. The technicians are well versed in Mercedes engines, explained all the nuances of the repair, and completed the work on time.
There was a loss of power and engine errors. After the M271 repair, the car drove much better, I am completely satisfied with the work.
I contacted them because of extraneous noise in the M271 engine. They conducted diagnostics, quickly found the cause, and fixed the problem. The engine runs quietly and stably.
Very satisfied with the service. The technicians are well versed in Mercedes engines, explained all the nuances of the repair, and completed the work on time.
There was a loss of power and engine errors. After the M271 repair, the car drove much better, I am completely satisfied with the work.
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