Mercedes-Benz bulletin NCU - 2024030003
What it saysRework side wall on longitudinal member on right and left Work procedure 1. NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Mar 6, 2024, received Apr 6, 2024, about the structure. It names 1 model year (2024). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationRework side wall on longitudinal member on right and left Work procedure 1. Remove longitudinal member panel on right and left. For basic data, see AR88.80-P-6000WEB . 2. Clean affected area (A, Figure 1) and treat with activator. Then seal with transparent seam seal. Rework seam seal only in affected area (A, Figure 1) on right and left sides. 3. Assemble in reverse order.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| NCU - 2024030003 | Service bulletin | Mar 6, 2024 | 10252836 | PDF, 135 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| A 000 989 31 00 | Activator | — | eBay Motors → |
| A 000 989 32 00 | Transparent seam seal | 09 | eBay Motors → |
Read by machine from the document NHTSA serves (2 pages), read Sep 30, 2026. A part number is shown only where it matches Mercedes-Benz’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. 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. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the frame and members for the 2024 CLE-Class →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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.
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What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 7 complaints with NHTSA since 2015.
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the structure
Source: same model, same component group10 other manufacturer communications filed against the Mercedes-Benz CLE-Class under the same component group (structure), newest first. The eight newest are listed; the rest are on the Mercedes-Benz list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| LI82.62-P-078631 | Service bulletin | Sep 14, 2026 | Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all rem… |
| LI72.40-P-080776 | Service bulletin | Sep 10, 2026 | Complaint When using the one‑touch (automatic) window closing function on one or both front door windows, the customer may report one of the… |
| LI72.20-P-075746 | Service bulletin | Aug 24, 2026 | Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EX… |
| PSL-NCU Return Parts 7/3 | Other | Jul 3, 2026 | Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be ret… |
| PSL-NCU Return Parts 4/17 | Other | Apr 17, 2026 | The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The de… |
| LI77.30-P-078299 | Service bulletin | Oct 23, 2024 | Complaint For a problem involving the soft top opening/closing function in combination with the cited fault code, the retainer lock (4) on t… |
| LI98.00-P-078106 | Service bulletin | Sep 10, 2024 | Complaint Damage or discoloration to paint protection films on vehicle. Cause Chip protection films are a wear item that may need to be repl… |
| NCU - 2024080003 | Service campaign | Aug 22, 2024 | 1. Replace reinforcement sheet metal for radiator crossmember (8). For basic information, see AR62.30-P-2300WEB. |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Mercedes-Benz, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Mercedes-Benz NCU - 2024030003 a recall?
No. A service bulletin 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 - 2024030003 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Mercedes-Benz warranty extension on file lists the ones Mercedes-Benz has filed.
Which vehicles does NCU - 2024030003 cover?
The manufacturer filed it against 1 model year: 2024 Mercedes-Benz CLE-Class. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.