Complete Oil Specifications
Your 2021 Mercedes-Benz E-Class 2.0L Turbo (M264 engine) requires synthetic engine oil strictly meeting the Mercedes-Benz approval standard. Primary recommendation is MB 229.71 (typically 0W-20 viscosity). Alternatively, MB 229.52 or MB 229.51 (often 5W-30 or 5W-40) are permitted depending on your exact sub-model and region; verify your under-hood placard.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 0W-20 (for MB 229.71) |
| OEM Standard | MB 229.71 (or MB 229.52) |
| Capacity (with filter) | 6.3 quarts |
| Oil Filter | Genuine Mercedes-Benz A2641840000 |
| Normal Interval | 10000 miles |
Why Genuine MB Allowances Matter
The hybrid-assist inline-4 turbocharged M264 engine depends heavily on precise lubrication to manage tight tolerances, prevent soot accumulation in exhaust components, and optimize fuel economy. Only oils formally vetted and carrying actual “MB-Approval” on the rear label have been tested for 10,000-mile endurance within these operating parameters.
Using unapproved oil will:
- ❌ Risk costly breakdown of the particulate filters
- ❌ Provide sub-optimal fuel economy
- ❌ Potentially sludge up the turbocharger cooling lines
Mercedes-Approved Oil Brands
-
✅ Mercedes-Benz Genuine Engine Oil MB 229.71 0W-20
-
✅ Castrol EDGE 0W-20 C5
-
✅ Liqui Moly Top Tec 6200 SAE 0W-20
-
✅ Mobil 1 ESP x2 0W-20
-
✅ Pennzoil Platinum Euro LX 0W-30 (MB 229.52 variant)
If you cannot source a dedicated MB 229.71 oil, ensure you use the MB 229.52 specification. Never use standard API API/ILSAC American-domestic standard oils.
Severe Service Check
You need the 5000-mile interval if you:
- Deal heavily with stop-and-go commuting
- Drive in sub-zero winter regions or highly dusty environments
- Constantly take short trips under 5 miles
Installation Details
Drain Plug Torque: ~22-26 ft-lbs (30-35 Nm)
Oil Filter Housing Cap Torque: 18 ft-lbs / 25 Nm
OEM Filter: Genuine Mercedes-Benz A2641840000
Aftermarket Filters:
-
Mahle OX 1133D
-
MANN-FILTER HU 6022 Z
-
Hengst E854H D318
Pro Tip: Remember to safely secure and tighten the plastic oil filter housing cap using exactly a 27mm socket and a torque wrench to prevent crushing the unit’s O-ring seal.
FAQs
What oil does a 2021 Mercedes-Benz E-Class 2.0L take?
Synthetic engine oil explicitly meeting the MB 229.71 (0W-20) or MB 229.52 (5W-30/40) standard.
How many quarts does it need?
Typically 6.3 quarts (approximately 6.0 Liters) via standard drain and fill procedures.
Can I use generic 5W-40 instead?
No, only use oil matching the exact MB 229.xx approval numbers stamped in your manual or on your hood placard.
Is synthetic oil required?
Yes, only highly refined, full synthetic base stocks can pass the grueling endurance testing protocols imposed by Mercedes-Benz.
How often should I change the oil?
Annually or every 10000 miles. For heavy city driving, halve it to 5000 miles. Keep an eye on the digital “Service A / Service B” cluster prompts.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-02-25 | Source: 2021 Mercedes-Benz E-Class Owner’s Manual and M264 Docs