Understanding Mercedes-Benz Oil Specifications
Mercedes-Benz has stringent requirements for the engine oil used in its vehicles, and the GLA is no exception. Simply choosing a 'synthetic' oil is not enough; the oil must carry a specific MB-Approval number. This approval guarantees that the oil's chemical composition and performance properties meet the manufacturer's exact standards for engine protection, fuel efficiency, and emissions control. The required specification often depends on the vehicle's model year and engine type.
Oil for the Standard Mercedes-Benz GLA 250
The most common GLA models, the GLA 250 and GLA 250 4MATIC, have different oil requirements depending on their production year.
GLA 250 (Pre-2020 Models)
- Viscosity: Models produced before the 2020 redesign typically use a full synthetic oil with a viscosity of either 5W-40 or 0W-40. The specific climate where the car is driven may influence which of these is recommended.
- MB-Approval: The oil must carry the MB-Approval 229.5 designation. This specification is for high-performance gasoline engines and supports extended service intervals. Popular brands with this approval include Mobil 1 and Castrol.
- Capacity: The engine oil capacity for these models is approximately 5.8 to 5.9 quarts, or around 5.5 liters, with a filter change.
GLA 250 (2020 and Newer Models)
- Viscosity: With the introduction of the redesigned H247 platform in 2020, the GLA 250's newer engines (M260) are engineered for lower viscosity fluids to improve fuel economy. The recommended viscosity is 0W-20.
- MB-Approval: The required approval changed to MB-Approval 229.71 or the newer 229.72 for these engines. These are Low-SAPS formulations designed to work with modern gasoline particulate filters (GPF) and further reduce emissions.
- Capacity: The oil capacity for these recent models remains consistent at around 5.8 quarts (5.5 liters) with a filter change.
Oil for Mercedes-AMG GLA 45 Models
Performance-oriented AMG models have different oil requirements due to their high-stress engines.
AMG GLA 45 (Pre-2020, M133 Engine)
- Viscosity: Older AMG models use 0W-40 or 5W-40 full synthetic oils.
- MB-Approval: Like the standard models of the same era, the required approval is MB-Approval 229.5.
- Capacity: The oil capacity is approximately 5.9 quarts (5.6 liters).
AMG GLA 45 (2020 and Newer, M139 Engine)
- Viscosity: The high-performance M139 engine found in recent AMG GLA 45 models requires a 0W-20 viscosity oil.
- MB-Approval: The oil must meet the same MB-Approval 229.71 as the standard GLA 250.
- Capacity: The oil capacity for these high-strung engines is slightly higher, at 6.1 quarts (5.8 liters).
Engine Oil Comparison: Pre-2020 vs. 2020+ GLA
This table provides a quick overview of the differences in engine oil requirements based on model year.
| Feature | GLA 250 (Pre-2020, M270 engine) | GLA 250 (2020+, M260 engine) | AMG GLA 45 (Pre-2020, M133 engine) | AMG GLA 45 (2020+, M139 engine) |
|---|---|---|---|---|
| Engine Oil Viscosity | 5W-40 or 0W-40 | 0W-20 | 0W-40 or 5W-40 | 0W-20 |
| MB-Approval Sheet | 229.5 | 229.71 / 229.72 | 229.5 | 229.71 |
| Oil Capacity (Approximate) | 5.8-5.9 US quarts | 5.8 US quarts | 5.9 US quarts | 6.1 US quarts |
| Oil Type | Full Synthetic | Low-SAPS Full Synthetic | Full Synthetic | Low-SAPS Full Synthetic |
| Emissions System | Standard | Equipped with GPF | Standard | Equipped with GPF |
The Crucial Role of MB-Approval
Mercedes-Benz designs its engines to function with a specific type of lubricant that is formulated to protect delicate components and ensure optimal performance. The MB-Approval isn't just a recommendation; it's a certification that an oil has passed rigorous testing protocols. For modern engines, especially those with Gasoline Particulate Filters (GPFs), using a Low-SAPS (Sulphated Ash, Phosphorus, and Sulphur) oil with the correct MB-Approval is essential to prevent damage to the exhaust after-treatment system. Using a non-approved oil can cause premature wear, oil sludging, and potentially lead to costly engine failures that will not be covered by warranty.
How to Find Your GLA's Specific Oil Requirements
The most reliable way to confirm your specific oil requirements is to check your owner's manual. It will list the precise MB-Approval number and the recommended viscosity for your engine. If you do not have a physical copy, you can often find digital versions on the official Mercedes-Benz website. For older models, a reputable mechanic specializing in European cars can also provide guidance. When purchasing oil, always look for the MB-Approval number printed on the bottle's label to ensure you are buying the correct product.
Conclusion
Choosing the correct engine oil for a Mercedes-Benz GLA is not a one-size-fits-all process and depends heavily on the model year and engine type. Pre-2020 models generally require a full synthetic 0W-40 or 5W-40 oil with MB-Approval 229.5. For the 2020 and newer models, a specific Low-SAPS 0W-20 oil with MB-Approval 229.71 or 229.72 is mandatory for both the GLA 250 and AMG GLA 45. Always verify the exact specification in your owner's manual to guarantee proper engine protection and performance. Adhering to these manufacturer specifications is the best way to maintain your GLA's engine health and uphold its longevity.
Note: For the most up-to-date information, always consult your owner's manual or the official Mercedes-Benz operating fluids website, known as BEVO (Betriebsstoff-Vorschriften).
Useful External Resource
For a complete and frequently updated list of approved fluids, refer to the official Mercedes-Benz Operating Fluids website: MB BEVO - Operating Fluids
