Four-door rear-wheel drive luxury sedan · 5.5-liter V8
2009 Mercedes-Benz S 550 Automatic
Mercedes-Benz's factory model archive identifies this 2009 S 550 sedan with rear-wheel drive; it is separated where drivetrain changes fitment.
Photo: “Mercedes Benz S 500 2009 (9037963458)” by order_242 from Chile / Wikimedia Commons, licensed under CC BY-SA 2.0. Cropped to 16:9.
Factory configuration
What this model is
- Trim
- S 550
- Body style
- Four-door rear-wheel drive luxury sedan
- Engine
- 5.5-liter V8
- Transmission
- 7-speed automatic
Configuration-specific ownership
Maintenance for this exact configuration
These items are filtered to the engine, transmission, trim, and model-year applicability recorded for this configuration. Broad Amazon category searches are suppressed here; shopping links appear only beside catalog-backed part numbers.
Service desk
What this car needs & when
Use this as a service-planning checklist for 2009 Mercedes-Benz S 550 Automatic. Start with the interval, confirm which engine or configuration you have, then use an exact ordering reference when one is verified.
- Service topics
- 8
- Factory intervals
- 8
- Fitment-scoped
- 8
- Exact references
- 1
Before orderingIdentify your engine, options and build date.Part numbers and sizes can change within one model year. Shopping links appear only for catalog-backed references; still verify the listing against your vehicle before ordering.
Engine oil and filter
Sourced interval available
Source: Mercedes-Benz — 2009 S 550 (W221/M273) mileage schedule, preserved by Operation CHARM · Normal Service — 10,000-mile row and repeating 10,000-mile schedule · checked
Cabin air filter
Sourced interval available
Source: Mercedes-Benz — 2009 S 550 (W221/M273) mileage schedule, preserved by Operation CHARM · Normal Service — 20,000-mile row and repeating 20,000-mile schedule · checked
Brake fluid
Sourced interval available
Source: Mercedes-Benz — 2009 S 550 (W221/M273) mileage schedule, preserved by Operation CHARM · Normal Service — 20,000-mile row and repeating 20,000-mile schedule · checked
Engine air-filter element
Exact reference available
Source: Mercedes-Benz — 2009 S 550 (W221/M273) mileage schedule, preserved by Operation CHARM · Normal Service — 40,000-, 80,000-, and 120,000-mile rows · checked
S 550 — 5.5-liter V8
K&N 33-2181
Source: K&N Engineering — 2017 European Automotive Catalog, S-Class application tables (archived copy) · W221 S-Class table — S 550, 2009 — 33-2181 (two required) · checked
Verified ordering references
- Service replacementK&N 33-2181
Qty. 2 · Reusable engine air-filter element · catalog-listed
K&N lists two elements for this application; confirm VIN and build date before ordering.
Catalog: K&N Engineering — 2017 European Automotive Catalog, S-Class application tables (archived copy) · W221 S-Class table — S 550, 2009 — 33-2181 (two required) · checked
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S 550 4MATIC — 5.5-liter V8
K&N 33-2181
Source: K&N Engineering — 2017 European Automotive Catalog, S-Class application tables (archived copy) · W221 S-Class table — S 550 4MATIC, 2009 — 33-2181 (two required) · checked
Verified ordering references
- Service replacementK&N 33-2181
Qty. 2 · Reusable engine air-filter element · catalog-listed
K&N lists two elements for this application; confirm VIN and build date before ordering.
Catalog: K&N Engineering — 2017 European Automotive Catalog, S-Class application tables (archived copy) · W221 S-Class table — S 550 4MATIC, 2009 — 33-2181 (two required) · checked
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Automatic-transmission fluid and filter
Sourced interval available
Source: Mercedes-Benz — 2009 S 550 (W221/M273) mileage schedule, preserved by Operation CHARM · Normal Service — 40,000-, 80,000-, and 120,000-mile rows · checked
Spark plugs
Sourced interval available
Source: Mercedes-Benz — 2009 S 550 (W221/M273) mileage schedule, preserved by Operation CHARM · Normal Service — 80,000-mile row · checked
Fuel filter
Sourced interval available
Source: Mercedes-Benz — 2009 S 550 (W221/M273) mileage schedule, preserved by Operation CHARM · Normal Service — 150,000-mile row · checked
Engine coolant
Sourced interval available
Source: Mercedes-Benz — 2009 S 550 (W221/M273) mileage schedule, preserved by Operation CHARM · Normal Service — 150,000-mile row · checked
Sources
Other 2009 configurations