The Mercedes-Benz CLS 550 was produced from 2007 to 2018 across two distinct generations. The first generation (2007-2011) featured a naturally aspirated 5.5L V8 engine, while the second generation (2012-2018) utilized a twin-turbocharged 4.6L or 4.7L V8 engine.
Using the correct engine oil capacity, viscosity, and type is essential for maintaining engine performance and longevity. Mercedes-Benz specifies full synthetic oil meeting MB 229.5 standards for all CLS 550 models.
This guide provides complete oil specifications for all model years, including capacity with and without filter, recommended viscosity grades, oil change intervals, and maintenance recommendations.
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2018 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 4.6L Twin-Turbo V8 (M278) |
| Oil Capacity (with Filter) | 9.0 qt (8.5 L) |
| Oil Capacity (without Filter) | 8.5 qt (8.0 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 278 184 01 25, Mann HU 7024 z, Mahle OX 774D |
The 2018 Mercedes-Benz CLS 550 uses a twin-turbocharged 4.6L V8 engine that requires 9.0 quarts (8.5 liters) of full synthetic oil with filter. Using 0W-40 or 5W-40 viscosity oil meeting MB 229.5 specification provides optimal protection and fuel efficiency.
2017 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 4.6L Twin-Turbo V8 (M278) |
| Oil Capacity (with Filter) | 9.0 qt (8.5 L) |
| Oil Capacity (without Filter) | 8.5 qt (8.0 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 278 184 01 25, Mann HU 7024 z, Mahle OX 774D |
The 2017 Mercedes-Benz CLS 550 requires 9.0 quarts (8.5 liters) of full synthetic oil meeting MB 229.5 specifications. The twin-turbo V8 engine performs best with 0W-40 or 5W-40 viscosity synthetic oil.
2016 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 4.6L Twin-Turbo V8 (M278) |
| Oil Capacity (with Filter) | 9.0 qt (8.5 L) |
| Oil Capacity (without Filter) | 8.5 qt (8.0 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 278 184 01 25, Mann HU 7024 z, Mahle OX 774D |
The 2016 Mercedes-Benz CLS 550 with its 4.6L twin-turbo V8 requires 9.0 quarts (8.5 liters) of full synthetic oil. Mercedes-Benz recommends MB 229.5 approved oil in 0W-40 or 5W-40 viscosity.
2015 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 4.6L Twin-Turbo V8 (M278) |
| Oil Capacity (with Filter) | 9.0 qt (8.5 L) |
| Oil Capacity (without Filter) | 8.5 qt (8.0 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 278 184 01 25, Mann HU 7024 z, Mahle OX 774D |
The 2015 CLS 550 uses 9.0 quarts (8.5 liters) of MB 229.5 approved synthetic oil with the oil filter. The M278 twin-turbo engine requires 0W-40 or 5W-40 viscosity for proper lubrication.
2014 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 4.6L Twin-Turbo V8 (M278) |
| Oil Capacity (with Filter) | 8.5 qt (8.0 L) |
| Oil Capacity (without Filter) | 8.0 qt (7.6 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 278 184 01 25, Mann HU 7024 z, Mahle OX 774D |
The 2014 Mercedes-Benz CLS 550 requires 8.5 quarts (8.0 liters) of full synthetic oil with the filter change. Using oil that meets MB 229.5 specification in 0W-40 or 5W-40 viscosity ensures proper engine protection.
2013 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 4.6L Twin-Turbo V8 (M278) |
| Oil Capacity (with Filter) | 8.5 qt (8.0 L) |
| Oil Capacity (without Filter) | 8.0 qt (7.6 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 278 184 01 25, Mann HU 7024 z, Mahle OX 774D |
The 2013 CLS 550 with the M278 twin-turbo V8 uses 8.5 quarts (8.0 liters) of synthetic oil. Mercedes-Benz specifies MB 229.5 approved oil in either 0W-40 or 5W-40 viscosity.
2012 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 4.6L Twin-Turbo V8 (M278) |
| Oil Capacity (with Filter) | 8.5 qt (8.0 L) |
| Oil Capacity (without Filter) | 8.0 qt (7.6 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 278 184 01 25, Mann HU 7024 z, Mahle OX 774D |
The 2012 Mercedes-Benz CLS 550 marks the introduction of the M278 twin-turbo engine, requiring 8.5 quarts (8.0 liters) of full synthetic oil. This model requires MB 229.5 specification oil in 0W-40 or 5W-40 viscosity.
2011 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 5.5L V8 (M273) |
| Oil Capacity (with Filter) | 9.0 qt (8.5 L) |
| Oil Capacity (without Filter) | 8.5 qt (8.0 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 0001802609, Mann HU 7008 z, Mahle OX 381D |
The 2011 CLS 550 uses the naturally aspirated M273 5.5L V8 engine requiring 9.0 quarts (8.5 liters) of synthetic oil with filter. The engine requires MB 229.5 specification oil in 0W-40 or 5W-40 viscosity for optimal performance.
2010 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 5.5L V8 (M273) |
| Oil Capacity (with Filter) | 9.0 qt (8.5 L) |
| Oil Capacity (without Filter) | 8.5 qt (8.0 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 0001802609, Mann HU 7008 z, Mahle OX 381D |
The 2010 Mercedes-Benz CLS 550 requires 9.0 quarts (8.5 liters) of MB 229.5 approved synthetic oil. The M273 V8 engine performs optimally with 0W-40 or 5W-40 viscosity oil.
2009 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 5.5L V8 (M273) |
| Oil Capacity (with Filter) | 9.0 qt (8.5 L) |
| Oil Capacity (without Filter) | 8.5 qt (8.0 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 0001802609, Mann HU 7008 z, Mahle OX 381D |
The 2009 CLS 550 with the M273 5.5L V8 uses 9.0 quarts (8.5 liters) of full synthetic oil with filter replacement. Mercedes-Benz requires oil meeting MB 229.5 specification in 0W-40 or 5W-40 viscosity.
2008 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 5.5L V8 (M273) |
| Oil Capacity (with Filter) | 9.0 qt (8.5 L) |
| Oil Capacity (without Filter) | 8.5 qt (8.0 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 0001802609, Mann HU 7008 z, Mahle OX 381D |
The 2008 Mercedes-Benz CLS 550 requires 9.0 quarts (8.5 liters) of synthetic oil meeting MB 229.5 standards. The M273 engine operates best with 0W-40 or 5W-40 viscosity synthetic oil.
2007 Mercedes-Benz CLS 550 Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 5.5L V8 (M273) |
| Oil Capacity (with Filter) | 9.0 qt (8.5 L) |
| Oil Capacity (without Filter) | 8.5 qt (8.0 L) |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 0W-40 or 5W-40 (MB 229.5) |
| Oil Change Interval | Every 10,000 miles or 12 months |
| Oil Drain Plug Torque | 22 lb-ft (30 Nm) |
| Recommended Filters | OEM 0001802609, Mann HU 7008 z, Mahle OX 381D |
The 2007 Mercedes-Benz CLS 550 uses 9.0 quarts (8.5 liters) of MB 229.5 approved full synthetic oil with filter. This first year of the CLS 550 nameplate requires 0W-40 or 5W-40 viscosity oil for proper engine lubrication.
Oil Maintenance and Service Tips
Checking Engine Oil Level
Check the engine oil level when the vehicle is on level ground, and the engine has been off for at least 5 minutes. The dipstick on Mercedes-Benz CLS 550 models is located at the rear of the engine compartment. Oil level should be maintained between the minimum and maximum marks on the dipstick.
Oil Change Procedure
Replace the oil drain plug washer with each oil change to prevent leaks. The drain plug should be torqued to 22 lb-ft (30 Nm) and the oil filter housing to 18 lb-ft (25 Nm). Apply a thin layer of clean oil to the new filter gasket before installation.
Service Intervals
| Driving Condition | Oil Change Interval |
|---|---|
| Normal Driving | Every 10,000 miles or 12 months |
| Severe Driving | Every 5,000-7,500 miles or 6 months |
Severe driving conditions include frequent short trips under 5 miles, extended idling, dusty environments, or trailer towing. Mercedes-Benz recommends more frequent oil changes under these conditions.
Oil Filter Replacement
Always replace the oil filter with every oil change. OEM filters or quality equivalents from Mann, Mahle, or Hengst are recommended. Confirm the correct filter part number before ordering as different variations exist.
When exploring Mercedes-Benz, don’t miss our detailed guides on popular models like the Mercedes-Benz E 400, Mercedes-Benz E 350, Mercedes-Benz CLS 450, and Mercedes-Benz CLA 45 AMG. Understanding engine oil capacity is crucial for proper maintenance, and our expert resources explain the exact oil requirements for these models. You’ll also find insights on recommended oil types, service intervals, and common issues linked to incorrect oil levels, ensuring your Mercedes-Benz always delivers reliable performance.
Frequently Asked Questions
What kind of oil does a Mercedes-Benz CLS 550 use?
The Mercedes-Benz CLS 550 requires full synthetic oil meeting MB 229.5 specification. Approved viscosity grades include 0W-40 and 5W-40 for all model years. Using manufacturer-approved oil ensures proper engine protection and longevity.
How much oil does a Mercedes-Benz CLS 550 take?
The CLS 550 oil capacity varies by model year and engine. Models from 2007-2011 and 2015-2018 require 9.0 quarts (8.5 liters) with filter, while 2012-2014 models need 8.5 quarts (8.0 liters) with filter. Always verify capacity in the owner manual for your specific year.
What is the recommended oil change interval for a Mercedes-Benz CLS 550?
Mercedes-Benz recommends oil changes every 10,000 miles or 12 months for normal driving conditions. Under severe driving conditions such as frequent short trips, extended idling, or dusty environments, reduce the interval to 5,000-7,500 miles. Always follow the maintenance indicator on the instrument cluster.
Can I use 5W-30 oil in my Mercedes-Benz CLS 550?
The CLS 550 requires 0W-40 or 5W-40 oil meeting MB 229.5 specification. While some Mercedes engines accept 5W-30, the CLS 550 engines (M273 and M278) are designed for 0W-40 or 5W-40 viscosity. Using incorrect viscosity may affect engine protection and fuel economy.
What is the oil drain plug torque for a Mercedes-Benz CLS 550?
The oil drain plug on all Mercedes-Benz CLS 550 models should be torqued to 22 lb-ft (30 Nm). Always replace the drain plug washer with each oil change to prevent leaks. The oil filter housing requires 18 lb-ft (25 Nm) of torque.
What oil filter does a Mercedes-Benz CLS 550 use?
The oil filter varies by engine type. Models with the M273 engine (2007-2011) use OEM part number 0001802609 or equivalents like Mann HU 7008 z. Models with the M278 engine (2012-2018) use OEM part number 278 184 01 25 or equivalents like Mann HU 7024 z. Confirm the correct filter before purchasing.
Conclusion
The Mercedes-Benz CLS 550 requires between 8.5 to 9.0 quarts of full synthetic oil depending on model year and engine type. All models require oil meeting MB 229.5 specification in either 0W-40 or 5W-40 viscosity.
Using manufacturer-approved oil and following recommended change intervals ensures optimal engine performance and longevity. The oil drain plug should be torqued to 22 lb-ft (30 Nm) and the filter housing to 18 lb-ft (25 Nm) during service.
Regular oil maintenance with quality synthetic oil protects the high-performance V8 engines found in all CLS 550 models and maintains reliability throughout the vehicle’s lifespan.
