Mercedes-Benz bulletin LI20_10-N-080868_1_en
Mercedes-Benz filed this with NHTSA as a service bulletin dated Aug 6, 2026, received Sep 3, 2026, about the power train. It names 5 model years (2023–2026). 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.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationComplaint The coolant warning lamp may be displayed in the instrument cluster. The malfunction indicator lamp (MIL) may also be illuminated. Cause Moisture or corrosion may be present in the connector of the low‑temperature circuit switchover valve (Y97/6) or coolant pump 1 (M75/11). Remedy Inspect the connectors and pins at the low‑temperature circuit switchover valve and coolant pump 1 for moisture, corrosion, or terminal damage. If moisture, corrosion, or terminal damage is found, replace the affected connector or wiring harness and the corresponding component as required. If available, use the wiring harness as the repair measure. If the wiring harness is not available or is not applicable, replace the connector housing and required small parts in the wiring harness.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI20_10-N-080868_1_en | Service bulletin | Aug 6, 2026 | 11036850 | not yet checked |
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.
Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2026 Mercedes-Benz Sprinter 2500; 2026 Mercedes-Benz Sprinter 3500.
A 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 LI20_10-N-080868_1_en 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 LI20_10-N-080868_1_en 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.
Which vehicles does LI20_10-N-080868_1_en cover?
The manufacturer filed it against 5 model years: 2025 Mercedes-Benz Sprinter, 2024 Mercedes-Benz Sprinter, 2023 Mercedes-Benz Sprinter, 2026 Mercedes-Benz Sprinter 2500, 2026 Mercedes-Benz Sprinter 3500. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.