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Manufacturer communication · Service campaign

BMW service campaign B170126

BMW filed this with NHTSA as a service campaign dated May 15, 2026, received Jun 1, 2026, about the engine. It names 1 model year (2022). 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 communication

DELIVERY STOP: CHARGE AIR COOLER VENTILATION LINE

Kind Service campaign Manufacturer date May 15, 2026 Received by NHTSA Jun 1, 2026 Components Engine

Document filed under this number

DocumentKindDatedNHTSA id
B170126Service campaignMay 15, 202611033034

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 them

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 579.5

Is BMW B170126 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 B170126 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 B170126 cover?

The manufacturer filed it against 1 model year: 2022 BMW 7 Series. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.