MG HS / HS PHEV Misfuel Standards NZ

Moderate — confirm petrol filler only; small tank fills quickly if wrong nozzle used.

Keep ignition off; drain before the fuel pump runs.

Replace filters, inspect pump and injectors, flush lines as specified.

⚠️ MG position — HS / HS PHEV

MG prescribes OEM fuel module access or tank removal. Fuel contamination is misuse excluded from factory warranty under NZ policy.

Specification	Details
Make	MG
Model	HS / HS PHEV
Market status	Sold new in New Zealand 2019–2026
Body styles	Passenger (NZ specification)
Generations	SAIC SSA (HS)
Engines	Petrol: Petrol engines per NZ specification (91/95/98 RON); Hybrid: Petrol hybrid or PHEV — petrol tank plus high-voltage system
Fuel tank capacity	55L
Fuel system	Petrol tank with hybrid system — follow HV safety when servicing
Access method	Fuel pump access panel (rear seat or cargo area) — Method A
Anti-siphon	Limited or generation-dependent — consult OEM
OEM service portal	MG Motor New Zealand — SAIC/MG technical publications

Do not start the engine. Secure the vehicle and keep ignition off.
Relieve fuel system pressure per OEM service information (fuel pump fuse/relay procedure).
Disconnect the negative battery terminal.
Access the in-tank fuel pump module using the OEM access panel or tank removal method for this model.
Disconnect electrical connector and fuel lines; cap lines to limit vapour release.
Remove the pump lock ring with the specified tool; extract contaminated fuel with approved equipment.
Inspect the tank interior; replace filter and O-rings as specified.
Reassemble, prime the system, check for leaks, and clear fault codes before road test.

Use the grade on the fuel flap and owner manual — typically 91 or 95 octane petrol, or diesel only on diesel variants.

Usually under the rear seat or boot floor access panel — see OEM service information.

Find an NZIFDA certified operator or read consumer guidance on wrong-fuel incidents.