⚠️ GWM manufacturer position
GWM UK dealer manuals describe fuel module access — often via rear seat panel on SUV platform. Incorrect fuel voids warranty.
Vehicle information
| Make | GWM |
|---|---|
| Model | Haval Jolion |
| Market status | Sold new in the UK — 2021–present |
| Body styles | 5-door SUV |
| Generations | First generation UK specification |
| Engine options | Petrol: 1.5L turbo petrol (UK) Hybrid: Jolion Hybrid (self-charging hybrid petrol) |
| Fuel tank capacity | Approximately 55 litres — confirm in owner handbook |
| Fuel system | Turbo petrol direct injection; hybrid shares petrol tank |
| Access method | Fuel pump access panel under rear seat on many UK Jolion — verify per VIN |
| Anti-siphon | Yes — anti-siphon filler neck |
| Service portal | GWM UK / Haval dealer technical support |
Misfuel risk Moderate
UK Jolion is petrol or hybrid only. Diesel misfuel is unlikely on new UK stock. Contaminated petrol or hybrid READY during service are the main workshop concerns.
If the engine was not started
Drain incorrect petrol or contaminated fuel before starting.
If the engine was started
Flush lines; inspect injectors and high-pressure pump if debris or water was ingested.
Access procedure
- READY/hybrid off if applicable; battery disconnected
- Relieve fuel pressure
- Remove rear seat access panel to reach pump module
- Disconnect lines and electrical; remove lock ring
- Drain tank; inspect and reseal with new O-ring
- Leak-check before return to customer
Notes
- GWM branding consolidates Haval, Ora, and Tank in UK marketing
Related models
- Ora 03
- Tank 300
Frequently asked questions
Is the Jolion diesel in the UK?
UK new stock is petrol and hybrid. Treat as petrol-only for misfuel risk.
Where is the fuel pump on a Jolion?
Typically accessed from the interior floor under the rear seat — confirm in GWM service data.
What if petrol is contaminated at the forecourt?
Do not drive. Drain and retain a sample; notify the retailer and follow Trading Standards guidance if needed.
Does warranty cover misfuel?
No — incorrect fuel is misuse.
Need professional misfuel recovery?
Find a certified operator or read consumer guidance for your next steps.
Find an operator Consumer guidance