Why should you contact MB Master?
In our service, we specialize in the repair and maintenance of Mercedes-Benz engines, in particular M276. Our technicians know all the features of these engines, use only high-quality spare parts and modern diagnostic equipment. We will help return your engine to ideal technical condition, and most importantly – extend its service life without unnecessary costs.Common problems of M276 engines and their solution in MB Master
1. Timing chain stretching
This problem usually occurs after 100-150 thousand km of mileage. Main symptoms:
✔ Ringing sound when starting
✔ Loss of power
✔ Valve timing errors
How we solve it: We replace the chain without disassembling the engine, which reduces the cost of repairs and reduces the operating time.
2. Carbon deposits on valves
The direct fuel injection system contributes to carbon deposits, which leads to:
✔ Unstable idle operation
✔ Reduced power
✔ Difficult cold engine starting
How we solve it: We use non-disassemblable intake tract cleaning technology, which effectively removes deposits and restores engine power.
3. Oil leaks
After 100,000 km of mileage, leaks may occur:
✔ Valve cover gaskets
✔ Crankshaft seals
✔ Heat exchanger gaskets
How we solve it: We conduct a thorough leak test and replace gaskets with high-quality analogs or original Mercedes-Benz parts.
4. Turbo problems (for M276 3.0 Biturbo)
Main turbocharger malfunctions:
✔ Oil leak
✔ Bearing wear
✔ Loss of boost
How we solve: We repair or replace turbos, and also diagnose the intake system and intercooler to identify hidden defects.
5. Overheating and cooling problems
The weak point of the M276 engines is the heat exchanger and thermostat. Overheating can lead to:
✔ Antifreeze leakage
✔ Loosening of cylinder head fasteners
✔ Destruction of plastic pipes
How to solve: We recommend replacing the thermostat and checking the radiator every 50,000 km to avoid serious consequences.
How to extend the life of the M276 engine?
To avoid costly repairs, adhere to the following recommendations:
✔ Change the oil every 7,000–10,000 km
✔ Use only high-quality oils and filters
✔ Clean the intake tract every 50,000 km
✔ Check the timing belt condition regularly
✔ Monitor the antifreeze level
Our specialists will help you properly maintain the engine and avoid premature wear.
Which M276 engine is better?
✅ M276 3.0 Biturbo is the perfect choice for those who value power and dynamics, but require more attention to the turbocharging system.
✅ M276 3.5 is a simpler and more reliable option for a quiet and comfortable ride.
Before purchasing a car with this engine, we recommend that you undergo a full diagnostics!
Sign up for diagnostics or repair of the M276 engine at MB Master
Our team will provide high-quality engine repair and maintenance at affordable prices. Don’t put off repairs – extend the life of your engine today! MB Master – professional repair of Mercedes-Benz engines!
With whom we have been working for more than a year. We are a certified service center with professional mechanics.
Request a Call 
Plot Route 
Reviews on Google 
