Checked oil specs by engine
2014 Mercedes-Benz CLA45 AMG oil capacity, type & filter
The 2014 Mercedes-Benz CLA45 AMG takes 5.8 qt of 0W-40 oil.
Applies to checked engine: 2.0L 4-Cyl Turbo.
PRO-TEC PXL10077 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
Search paths only — confirm your OEM viscosity spec and quantity before checkout.
2014 Mercedes-Benz CLA45 AMG oil specs: capacity conditions and filter notes
All listed filter part numbers are compatible alternatives for your vehicle. Choose any one brand, then confirm the exact part number at checkout.
Retailer fitment tools may use different data. Confirm oil capacity, viscosity, and filter part number before ordering.
Source coverage for the 2014 Mercedes-Benz CLA45 AMG
Supported by Pennzoil OATS and Castrol (Olyslager).
Supported by Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager).
Supported by Purolator Part Finder and RockAuto.
5 checked source rows for the 2014 Mercedes-Benz CLA45 AMG.
Before ordering for this 2014 Mercedes-Benz CLA45 AMG
- Capacity
- 5.8 qt
- Oil type
- 0W-40
- Interval
- 10,000 mi / 12 mo
- Filter
- PRO-TEC PXL10077
Source check: Last checked 2026-06-27 from AMSOIL Lookup, Pennzoil OATS, RockAuto, Purolator Part Finder, and Castrol (Olyslager).
Mercedes-Benz CLA45 AMG oil specs by year
This table includes checked Mercedes-Benz CLA45 AMG model years available in our database.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2020 | 6.1 qt | 0W-20 | PRO-TEC PXL10077 |
| 2019 | 5.8 qt | 0W-40 | PRO-TEC PXL10077 |
| 2017 | 5.8 qt | 0W-40 | PRO-TEC PXL10077 |
| 2016 | 5.8 qt | 0W-40 | PRO-TEC PXL10077 |
| 2015 | 5.8 qt | 0W-40 | Purolator L31389 |
| 2014 Current page | 5.8 qt | 0W-40 | PRO-TEC PXL10077 |
How we verified 2014 Mercedes-Benz CLA45 AMG oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-27.
This page checked 5 sources for the 2014 Mercedes-Benz CLA45 AMG. The table lists which checked source contributed capacity, oil type, or filter evidence.
We checked leading oil brands and aftermarket filter catalogs so you don't have to.
- Confidence
- Verified fit
- Sources checked
- 5
- Last checked
- 2026-06-27
- Capacity: Pennzoil OATS and Castrol (Olyslager)
- Oil type: Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager)
- Filter: Purolator Part Finder and RockAuto
- Change interval: Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager)
| Source | Supports | Checked | Link |
|---|---|---|---|
| AMSOIL Lookup | Oil type | 2026-06-27 | Visit brand site |
| Pennzoil OATS | Capacity, Oil type | 2026-06-27 | Visit brand site |
| RockAuto | Filter | 2026-06-27 | Checked source |
| Purolator Part Finder | Filter | 2026-06-27 | Visit brand site |
| Castrol (Olyslager) | Capacity, Oil type | 2026-06-27 | Visit brand site |
2014 Mercedes-Benz CLA45 AMG oil FAQ
Is the oil capacity measured with or without the filter?
Capacity condition matters. With filter includes a new filter. Service fill is the typical drain-and-fill amount. Dry fill is for a fresh empty engine only.
Why should I confirm before buying?
Retailer catalogs can update separately. Confirm the exact 2014 Mercedes-Benz CLA45 AMG selector at checkout before you buy.
Do I also need to match the OEM oil approval?
Yes. Viscosity is only one part of the oil spec. Match the oil approval listed in your owner's manual or on the bottle before checkout.
How often should I change the oil on a 2014 Mercedes-Benz CLA45 AMG?
Castrol's service data indicates a 10,000 mi / 12 mo change interval for the 2014 Mercedes-Benz CLA45 AMG. Always follow your owner's manual and oil-life monitor. Severe service may require a shorter interval.
Do I need a new drain plug gasket?
Replace it when your vehicle uses a serviceable gasket or crush washer. Confirm the gasket size and drain plug torque from the service manual or parts counter.
2014 Mercedes-Benz CLA45 AMG maintenance checklist
One part checked. Look up the rest while you're here.
- Cabin air filter 2014 Mercedes-Benz CLA45 AMG cabin filter part numbers
- Engine air filter 2014 Mercedes-Benz CLA45 AMG engine filter part numbers
- Oil type & capacity 0W-40 · 5.8 qt Checked
Where to buy
These are retailer search paths for your vehicle's oil and filter specs. Verify final fitment at checkout.
This section may include affiliate or sponsored retailer links. They are purchase paths, not fitment evidence.
Walmart
Compare oil and filter listings for the 2014 Mercedes-Benz CLA45 AMG. Confirm capacity, viscosity, and filter part number before checkout.
Search 2014 Mercedes-Benz CLA45 AMG oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2014 Mercedes-Benz CLA45 AMG before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2014 Mercedes-Benz CLA45 AMG oil & filter →Amazon
Search Amazon listings for the 2014 Mercedes-Benz CLA45 AMG and check listing fitment notes against the specs above.
Search 2014 Mercedes-Benz CLA45 AMG oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2014 Mercedes-Benz CLA45 AMG and verify oil capacity, viscosity, and filter part number before ordering.
Search 2014 Mercedes-Benz CLA45 AMG oil & filter →Look up another vehicle
Find checked oil capacity, type, and filter data by exact year, make, and model.