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Manufacturer communication · Service bulletin

Bentley bulletin 2078190/7

Bentley filed this with NHTSA as a service bulletin dated Jul 17, 2026, received Jul 28, 2026, about the engine. It names 28 model years (2017–2027). 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 communication

AC System not Cooling - HVAC Leakage Customer Statement: The customer may find that the A/C system not blowing cold air and / or Cooling performance has declined over time.

Kind Service bulletin Manufacturer date Jul 17, 2026 Received by NHTSA Jul 28, 2026 Components Engine, Electrical System

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
2078190/7Service bulletinJul 17, 202611035246not 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.

Common questions

Source: NHTSA, 49 CFR 579.5

Is Bentley 2078190/7 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 2078190/7 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 2078190/7 cover?

The manufacturer filed it against 28 model years: 2027 Bentley Bentayga, 2026 Bentley Bentayga, 2025 Bentley Bentayga, 2023 Bentley Bentayga, 2022 Bentley Bentayga, 2021 Bentley Bentayga and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.