What are the standard Mercedes-Benz maintenance intervals?
Every Mercedes follows a factory-defined maintenance schedule known as Service A and Service B, with variations depending on engine, model, and year.
Below is a breakdown tailored for Sherwood Mercedes drivers.
Request your VIN-based Mercedes maintenance plan
EVERY
5
0
0
0
MILES
- Oil & Filter Change
- Vehicle Inspection
While Mercedes-Benz often recommends a 10,000-mile oil interval, most technicians agree this is too long for modern turbocharged M274, M260, M270, and AMG engines. Shorter intervals help:
Reduce carbon buildup
Protect turbocharger bearings
Improve long-term engine health
Prevent timing component wear
We recommend full-synthetic oil changes every 5,000 miles using premium oils like LIQUI MOLY.
EVERY
1
YEARS (SERVICE A)
- Replace Cabin Air Filter
- Open, Lubricate, and Clear Sunroof Drains
- Tire pressure check
- Brake inspection
- Fluid top-offs
- Reset maintenance counter
- Full multi-point inspection
Oregon’s heavy pollen, constant rain, and evergreen debris make annual service essential.
Service A protects your Mercedes from:
HVAC airflow restriction
Mold & odor buildup in the cabin
Water damage from clogged sunroof drains
Premature brake wear
Tire and alignment issues
This service sets the foundation for year-long reliability.
EVERY
2
0
0
0
0
MILES
- Replace Engine Air Filter
- Inspect Brakes (Some models do not have brake pad wear sensors)
Mercedes-Benz engines, especially turbocharged and AMG variants, require clean airflow to maintain proper boost, fuel efficiency, and throttle response.
Replacing the engine air filter every 20,000 miles ensures:
Stable performance
Consistent fuel economy
Reduced turbo strain
Smooth power delivery
Brake inspections are critical because many Mercedes models have:
Only one wear sensor
Rear-only sensors
No indicators until pads are very low
A 20k inspection prevents rotor damage and unsafe braking situations.
EVERY
2
YEARS (SERVICE B)
- Replace Brake Fluid
- Inspect Cooling System, flush cooling system as needed
- A/C service & Inspection. Evacuate, recharge, and leak test A/C system
Brake fluid absorbs moisture over time, reducing braking efficiency and damaging internal components.
Service B expands on Service A and includes:
Full brake fluid replacement
Cooling system pressure test & inspection
A/C performance evaluation
HVAC recharge & leak check
Additional diagnostic checks
Coolant and A/C inspection are especially important on:
M274/M276 engines (known for thermostat issues)
BlueTEC diesel models
Mercedes vehicles over 5 years old
EVERY
4
0
0
0
0
MILES
- Inspect suspension parts and tires
- Inspect cooling system (Water pump, thermostat, radiator) for leaks
- Inspect for oil leaks around valve cover
- Transmission fluid (7G-Tronic / 9G-Tronic depending on model)
- Differential / 4MATIC fluid service
- Fuel filter replacement (model specific)
Around 40k miles, Mercedes-Benz vehicles begin to show early wear patterns, especially on:
Control arms & bushings
Tie rods
Engine mounts
Water pumps & thermostat housings
Transmission fluid is critical
Mercedes markets their 7G/9G fluids as “lifetime,” but real-world data shows:
Smoother shifting when serviced at 40k
Longer transmission life
Reduced torque converter shudder
Diesel models require fuel filter replacement at this interval to maintain proper pressure and DEF/DPF function.
EVERY
6
0
0
0
0
MILES
- Replace Fuel Filter (model specific)
- Inspect drive belts and pulleys and replace as needed
- Replace Spark Plugs (model specific)
- Inspect timing chain tension
60k is a major milestone for many Mercedes platforms.
Spark Plugs
Most M274, M276, and AMG engines require spark plugs every 60k to prevent:
Misfires
Poor fuel economy
Excessive carbon buildup
Turbo strain
Belt & Pulley Inspection
Serpentine belt and tensioner failure can lead to overheated engines or loss of power steering.
Timing Chain/Tension Check
While timing chains last longer than belts, certain Mercedes engines (M272/M273, early M274 variants) can develop:
Chain stretch
Weak tensioners
Guide wear
Early detection prevents catastrophic failures.