2004 Mitsubishi Shogun Sport 2.5L Diesel · NG54 ADV

The 2477cc diesel Shogun Sport is relatively economical for a large SUV, typically returning around 25-30 mpg in mixed driving, though real-world figures for high-mileage examples often fall short. Road tax for a vehicle of this age and engine size will be at the standard rate for pre-2006 diesels. Insurance grouping for the Shogun Sport tends to fall in groups 30-35, which is moderate for a large 4x4 but worth checking with a quote before purchase. Replacement parts for Mitsubishi SUVs of this era are increasingly harder to source, which can inflate maintenance costs.

Typical annual maintenance for a vehicle at 125,000 miles includes tyre replacement, brake discs and pads, and likely suspension components given the MOT advisories. Budget for £600-£900 annually for routine maintenance, with potential spikes if the structural corrosion requires professional repair. The diesel engine requires regular oil changes and fuel filter replacement to remain reliable. Estimated annual running costs including fuel, tax, insurance, and maintenance are likely to be in the region of £2,200-£2,800, depending on mileage and condition.

The most critical area for inspection on this specific vehicle is the chassis and underbody. The June 2025 MOT failure explicitly noted 'All Under Chassis Heavily Undersealed Preventing Full Inspection' — this means the tester could not properly assess structural condition. A pre-purchase inspection must include removal or sampling of underseal where safe to do so, or use of specialist corrosion assessment. The nearside front integral body structure was flagged as corroded to the extent that rigidity was significantly reduced; this is a serious structural defect that may compromise safety and could make the vehicle uneconomical to repair.

Both front suspension arm ball joints showed play at the June 2025 test, and the nearside front anti-roll bar pin/bush was excessively worn. These items may have been repaired before the July 2025 retest passed, but verify with receipts. The track rod end ball joint play flagged in March 2023 is another steering component that should have been addressed. Check the engine and gearbox mounting condition visually — the 2025 failure noted excessive movement. Finally, inspect all brake pipes carefully; the December 2021 test noted corrosion covered in grease, which is a temporary measure rather than a proper repair. The rear brake imbalance and below-requirement service brake efficiency from March 2023 should also be verified as resolved.