U019F on Mercedes-Benz vehicles
U019F is named on 15 Mercedes-Benz model years (2019–2023): 15 manufacturer filings and 0 owner reports in NHTSA’s files, across AMG GT, CLS-Class, E-Class, GLE-Class.
Which Mercedes-Benz model years name U019F
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2023 Mercedes-Benz AMG GT | Engine | 1 | — |
| 2023 Mercedes-Benz E-Class | Engine | 1 | — |
| 2022 Mercedes-Benz AMG GT | Engine | 1 | — |
| 2022 Mercedes-Benz E-Class | Engine | 1 | — |
| 2022 Mercedes-Benz GLE-Class | Engine | 1 | — |
| 2021 Mercedes-Benz AMG GT | Engine | 1 | — |
| 2021 Mercedes-Benz CLS-Class | Engine | 1 | — |
| 2021 Mercedes-Benz E-Class | Engine | 1 | — |
| 2021 Mercedes-Benz GLE-Class | Engine | 1 | — |
| 2020 Mercedes-Benz AMG GT | Engine | 1 | — |
| 2020 Mercedes-Benz CLS-Class | Engine | 1 | — |
| 2020 Mercedes-Benz E-Class | Engine | 1 | — |
| 2019 Mercedes-Benz AMG GT | Engine | 1 | — |
| 2019 Mercedes-Benz CLS-Class | Engine | 1 | — |
| 2019 Mercedes-Benz E-Class | Engine | 1 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
Mercedes-Benz filings that name U019F
Source: NHTSA manufacturer communicationsBulletins and campaigns Mercedes-Benz filed with NHTSA whose summary names U019F. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- LI20.10-P-075374 Service bulletin2022-11-10 · Engine And Engine Cooling
- Complaint Red coolant warning in instrument cluster. Fault codes U019F00 or U019F87 current/stored in MRG1 control unit. Cause Various causes Remedy Perform guided test for fault code U019F with XENTRY diagnosis. Verify the following connections are clean and tight. Correct any problems and retest pump actuation: -12V plug at M75/11 -48V plug at M75/11 -48V connector X192/4 -Connections
What U019F means
Source: SAE J2012 / OBD-IIU019F sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.
A stored code names the test that failed, never the part that caused it. The record above is what Mercedes-Benz and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs U019F a known problem on Mercedes-Benz vehicles?
It is a documented one: NHTSA's files hold 15 manufacturer filings and 0 owner reports naming U019F on 15 Mercedes-Benz model years (2019–2023). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Mercedes-Benz models does U019F appear on most?
2023 AMG GT (1 document), 2022 AMG GT (1 document), 2021 AMG GT (1 document).
Does U019F on a Mercedes-Benz mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.