MAXUS DELIVER 9: Instrument display indicates DPF regeneration is unavailable

MAXUS DELIVER 9: Instrument display indicates DPF regeneration is unavailable

Symptoms

• DPF regeneration does not start after a request; the instrument display indicates why regeneration is unavailable. ^[1]

Possible causes

• Possible reasons include incorrect gear/vehicle speed/pedal status, unmet temperature or voltage conditions, or engine- and DPF-related faults; the table of reasons does not list OBD fault codes. ^[1]

Checks

• Record the specific reason shown on the instrument display and use the source table to check prerequisites such as N/stationary status, pedal status and temperature; do not present numbers 0–27 as DTCs. ^[1]

What to do

• Only attempt regeneration after all safety and operating conditions in the source manual are met; refer repeated unsuccessful attempts to a service provider for inspection. Do not forcibly bypass the conditions. ^[1]

Applicability and limits

• Source limits: MAXUS DELIVER 9, model year 2024, English-language material from the official Swiss website; this entry only applies to the manual-transmission regeneration procedure; stationary regeneration requires an open, ventilated area away from combustible materials. For inspection guidance only; related parts do not constitute a recommendation to replace them. No vehicle model is linked; do not assume applicability to other models of the same brand. Scope: unknown ^[1]
• This entry only applies to the manual-transmission regeneration procedure; stationary regeneration requires an open, ventilated area away from combustible materials

Related part categories

• Diesel particulate filter ^[1]

Sources

[Source 1] SAIC MAXUS DELIVER 9 24MY User Manual — PDF pp.112–114 / printed pp.104–106, cannot be regenerated reason table and Possible causes of regeneration failure (accessed 2026-11-01)
https://www.maxusmotors.ch/images/bedienungsanleitungen/DE/DELIVER9-24MY%20User%20Manual_compressed.pdf