This content was compiled automatically and has not yet been reviewed by a technician. For reference only.
For reference only. Always confirm part numbers and procedures for your specific vehicle.
Fault diagnosis
MAXUS DELIVER 9: Fuel filter water level warning light illuminates
The yellow fuel filter water level warning light illuminates while driving.
MAXUS DELIVER 9: Fuel filter water level warning light illuminates
Symptoms
- The yellow fuel filter water level warning light illuminates while driving. [1]
Possible causes
- The manual requires checking for and draining accumulated water from the diesel fuel filter; it does not give a more specific source of water ingress. [1]
Checks
- Stop safely and switch off the engine. Have a qualified technician check filter drainage and fuel leakage in accordance with the manual; protect the hands and collect the fluid in a suitable container. [1]
What to do
- Follow the drainage procedure for this vehicle and recheck the warning light and fuel leakage; diesel fuel must not be poured into domestic or public sewage systems. [1]
Applicability and limits
- Source limits: MAXUS DELIVER 9, model year 2024, English-language material from the official Swiss website; only applies to diesel configurations; do not assume applicability to LDV market versions. 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]
- Only applies to diesel configurations; do not assume applicability to LDV market versions
Related part categories
- Diesel fuel filter [1]
Sources
[Source 1] SAIC MAXUS DELIVER 9 24MY User Manual — PDF pp.53, 180 / printed pp.45, 172, Fuel filter water level warning light / Draining fuel filter (accessed 2026-11-01)
https://www.maxusmotors.ch/images/bedienungsanleitungen/DE/DELIVER9-24MY%20User%20Manual_compressed.pdf
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