Service bulletins for the 2025 Mercedes-Benz CLE
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
77 on file from NHTSA, as of 2026-10-19.
About P1404 on the 2025 Mercedes-Benz CLE: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P1404 are shown. Show all
| LI49.10-P-080201 | 2026-02-06. Service bulletin. ENGINE. Complaint Check engine light illuminate, or previously on One of the below Exhaust Flap fault codes stored in PTCU N127: P13C273 P13C278 P140473 Cause Various Remedy Model year 2024 254 and 167 with engine M254 -Update software of N127 PTCU. New software: 254- A2549022611 167- A2549022811 -Clear fault codes and check operation of the exhaust flap. Models with M256, or models with M254 after SW update -Check exhaust flap for free movement via actuation. -Remove flap actuator and check movement of flap in exhaust pipe. Replace exhaust pipe section if flap is binding. -Replace flap actuator if above checks are ok. If fault code returns after performing the above steps, open a TIPS case with the powertrain team. Note: Codes P13C273 and P13C278- Right side flap Code P140473- Left side flap |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.