BYD Qin L DM-i Fuel Nozzle Keeps Clicking Off: What to Check

Qin L DM-i fuel nozzle keeps cutting off: don't blame the cap or canister first

Scope: 2026 Qin L DM-i, China mainland; PDF pp. 150 and 358

Tell a one-off stop from a repeated problem

The manual says not to keep overfilling once the nozzle has cut off automatically, and the maintenance schedule lists frequent nozzle cut-off as a reason to look at the canister dust filter. A single normal stop is not a fault, and a repeated problem cannot be pinned on one part straight away. Start by describing how often it happens, at which stations and the fuel level at the time. ^[1]

Keep the differences between situations for diagnosis

We suggest giving the workshop details of how the car behaves at different filling stations, along with recent repair records, so it can confirm vehicle and equipment factors. Don't keep forcing extra fuel in to test whether the tank will fill, and don't clear lines yourself, alter the vent system or buy modification parts that delete related components. Trying cheap replacement parts can hide the real cause. ^[1]

How to confirm the work is done

The workshop should explain what it checked, what it found and what it did, then re-check the complaint under proper safety conditions. If you smell fuel, see signs of a leak or notice any other safety problem, stop using the car and get help; don't try filling again. This article gives no tank pressures, line procedures or fault codes; before buying any related part, you still need the vehicle details and a diagnosis. ^[1]

Sources

[Source 1] BYD China official website: 2026 Qin L DM-i Owner's Manual (in Chinese) (public PDF on the official website)
https://www.byd.com/material/domestic-official/user-manual/dynasty/2026%E6%AC%BE%E7%A7%A6L%20DM-i%E7%94%A8%E6%88%B7%E6%89%8B%E5%86%8C20260417.pdf
Verified: 2026-10-03; page publication date not confirmed.

This article contains information-organising suggestions from the editorial team; it is not a manufacturer repair procedure.