Mercedes-Benz service campaign NCU - 2025050009
Mercedes-Benz filed this with NHTSA as a service campaign dated May 30, 2025, received Jun 3, 2025, about the electrical system. It names 1 model year (2025). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communication1. Connect XENTRY Diagnosis. 2. Update Battery management system (BMS) control unit software. To do this, select menu item "Quick test view → N82/9 – Battery management system (BMS) → Adaptations → Control unit update → Updating of control unit software". Follow the user guidance in XENTRY Diagnosis. Then update the following list of control units in the sequence given below: a) (A26/17) MBUX multimedia system (Head Unit) b) (B29/13) Left rear short-range radar (NBR-LR) c) (N162) Ambiance light (AML) d) (N156/1) Active driving sound compensation (ASX7) e) (A40/11) Multifunction camera (MFK) f) (N32/1) Electrical seat adjustment ‘Driver’ with memory function (ESA ‘Driver’) g) (N32/2) Electrical seat adjustment ‘Front passenger’ with memory function (ESA ‘Front passenger’) h) (N51/8) ADS (Adaptive damping system) i) (N2/10) Supplemental Restraint System (SRS) After the software updates have been completed, SCN coding must be performed for the following control units in the sequence given below: 3. Perform SCN coding in the AC charger for high-voltage battery (SG-LG) control unit. To do so, select menu item "Quick test view → N83/11 - AC charger for high-voltage battery (SG-LG) → Adaptations → Control unit update → Updating of SCN coding�. Then follow the user guidance in XENTRY Diagnosis. Update the following list of control units in the same way. a) (N10/6) Front signal acquisition and actuation module (Driver-side SAM) b) (N10/8) Rear signal acquisition and actuation module (Rear SAM) c) (N179) Hand detection system (HE) d) (N62) Parking system (PARK) 4. Disconnect XENTRY Diagnosis.
Document filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| NCU - 2025050009 | Service campaign | May 30, 2025 | 11019012 |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5; the full text comes from the manufacturer or a dealer. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. Quote it at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Common questions
Source: NHTSA, 49 CFR 579.5Is Mercedes-Benz NCU - 2025050009 a recall?
No. A service campaign is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the NCU - 2025050009 repair free?
A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does NCU - 2025050009 cover?
The manufacturer filed it against 1 model year: 2025 Mercedes-Benz G-Class. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.