Recall 20V364 covers 90 2020 Mercedes-Benz C 300, E 350, and Glc 300 vehicles with loose turbocharger oil lines. Free repair at a Mercedes-Benz dealer.
Mercedes-Benz is recalling 90 2020 E 350, C 300, and Glc 300 vehicles with turbocharged 4-cylinder gasoline engines because the screws retaining the turbocharger oil feed and return lines have a tightening defect. Oil can leak onto hot engine or exhaust parts and increase fire risk, and Mercedes-Benz dealers will tighten the screws free of charge.
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What's wrong?
The turbocharger on the 2020 Mercedes-Benz E 350, C 300, and Glc 300 uses engine oil to cool and lubricate its spinning parts. Oil reaches the turbocharger through a feed line and drains back through a return line. Small screws hold those lines tight against the turbocharger so oil stays inside the system.
On affected vehicles, Mercedes-Benz did not have confirmation that the screws for the turbocharger oil feed and return lines were tightened to specification during assembly. If those screws are loose, the line connection can lose its seal. Engine oil can then leak at the turbocharger instead of staying in the feed and return path.
There is no warning sign before failure. Because the issue is at the mounting screws and oil-line seal, an owner is not expected to get advance notice before oil starts leaking.
Who's affected?
Covers the E 350, C 300, and Glc 300 model lines, all tied to the same turbo/supercharger component.
| 2020 Mercedes-Benz E 350 | Turbo/supercharger |
|---|---|
| 2020 Mercedes-Benz C 300 | Turbo/supercharger |
| 2020 Mercedes-Benz Glc 300 | Turbo/supercharger |
| Units affected | 90 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching 2020 Mercedes-Benz model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific vehicle.
What's the safety risk?
An oil leak near an ignition source, including hot engine or exhaust parts, can increase the risk of a fire. The failure gives no advance warning, so confirm whether your VIN is included and schedule the recall work soon. Repair is free at any franchised Mercedes-Benz dealer.
What should I do?
- Check your VIN to confirm your 2020 Mercedes-Benz E 350, C 300, or Glc 300 is included in this recall.
- Contact a franchised Mercedes-Benz dealer to schedule the free turbocharger oil-line inspection and tightening that addresses the oil leak risk near hot engine or exhaust parts.
- Bring the recall notice if Mercedes-Benz mailed one. If not, reference recall number 20V364 when you call.
- Avoid driving if you see an oil leak near the engine or exhaust, and ask the dealer whether the vehicle should be towed.
What happens at the repair
At the dealer, a Mercedes-Benz technician inspects the turbocharger oil feed and return lines, then tightens the line-retaining screws where needed. The recall repair is free, with parts and labor covered. Out-of-pocket repairs already paid are handled through the new vehicle warranty, not through a separate reimbursement program, because the involved vehicles remain under warranty. Ask the service desk how warranty coverage applies if you have prior repair paperwork for this issue.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| June 22, 2020 | NHTSA published the recall |
|---|---|
| June 30, 2020 | Dealer notification began |
| August 17, 2020 | Owner notification mailed |
| August 17, 2020 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| August 17, 2020 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 20V364?
Recall 20V364 covers 90 2020 Mercedes-Benz E 350, C 300, and Glc 300 vehicles with turbocharged 4-cylinder gasoline engines. The turbocharger oil line screws were not tightened correctly, which can cause an oil leak near hot engine or exhaust parts and increase fire risk.
What should I do if my 2020 Mercedes-Benz E 350, C 300, or Glc 300 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 20V364. If it is, contact a franchised Mercedes-Benz dealer to schedule the turbocharger oil line inspection. The dealer will tighten the lines as needed for free. Reference recall number 20V364 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Mercedes-Benz dealers will inspect the turbocharger oil feed and return lines and tighten them as needed, free of charge.
What is the safety risk?
The risk is fire from leaking engine oil. Recall 20V364 says oil leaking near an ignition source, including hot engine or exhaust components, can increase the risk of a fire. The repair path is an inspection and tightening of the turbocharger oil lines at a Mercedes-Benz dealer.
When did the recall repair start?
The recall repair began on August 17, 2020. Since the remedy is available, affected owners can contact a franchised Mercedes-Benz dealer for the inspection and tightening repair. Mercedes-Benz customer service is available at 1-800-367-6372.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/20V364000 |
|---|---|
| Mercedes-Benz customer service | 1-800-367-6372 |
| NHTSA recall # | 20V364 |
| NHTSA recall # (full) | 20V364000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →