Mitsubishi Galant

Like the 4G93-GDI, but more pronounced: the larger displacement produces more deposits. Intake ports and intake valves carbon up heavily and the engine loses noticeable power and refinement.

Symptoms: Engine stalls at idle, heavy stumbling under load, black smoke, marked power loss

The high-pressure pump (part number MD 373962) leaks at the housing gasket. Mitsubishi requires complete replacement at around 1,000 EUR. Reconditioning by specialist firms is possible but parts are hard to source.

Symptoms: Fuel leak at the pump, starting problems, engine stutters under acceleration, petrol smell

Identical problem to the 4G93-GDI: direct injection causes heavy carbon fouling of the spark plugs. Replacement every 20,000–30,000 km necessary.

Symptoms: Rough idle, difficult cold start, engine stumbles at low rpm, increased fuel consumption

On the four-cylinder engine, the head gasket can blow even with a slightly low coolant level. The damage occurs faster than on comparable vehicles and can lead to expensive engine damage if not caught early.

Rust appears particularly at the weld seams of the front body structure, on hose clamps in the engine bay and at the engine mounts. Multi-layer sheet metal joints make repairs complex. Wheel arches and upper wing carriers are also affected.

The clutch on manual gearbox variants is undersized and often lasts fewer than 100,000 km in urban use. Premature clutch wear is especially common with frequent stop-start driving.

The 2.4 GDI engine is heavily prone to carbon build-up on the intake valves and intake tract from EGR particles. No fuel spray cleans the valves as with port injection. Workshops with the required cleaning expertise are becoming scarcer.