Generations
F70 — F70 (1985-2002)
1985–2002
2.8L Diesel
Top issues to watch for
The most serious Daihatsu Fourtrak problems ranked by severity. We track 5 known issues — here are the ones you need to know about first.
Dangerous
Structural corrosion at mounting points (F70/F75)
The Fourtrak suffers from severe structural corrosion at critical mounting points including subframe, suspension, and body mounting areas. MOT data shows failure rates 259 times higher than the fleet average, indicating this is a fundamental design weakness rather than normal age-related deterioration. The corrosion affects load-bearing areas within 30cm of suspension mounting points, compromising structural integrity. This is particularly severe on vehicles used off-road or in coastal areas due to salt exposure.
What happens if ignoredStructural corrosion at mounting points represents a critical safety risk. Failure can cause suspension collapse, loss of steering control, or catastrophic structural failure. Repair typically requires welding new metal sections or complete subframe replacement. Costs routinely exceed the vehicle's value, making many examples uneconomical to repair.
Independent garage
£1,500–£4,000
Parts only
£200–£800
Major
Steering system wear (F70/F75)
The Fourtrak steering system exhibits excessive wear rates, with MOT data showing free play failures at 214 times the fleet average and ball joint wear at 47 times normal rates. The recirculating ball steering box, track rod ends, and ball joints wear rapidly due to the vehicle's agricultural design and off-road usage patterns. This creates dangerous levels of steering play and poor road holding, particularly at motorway speeds.
What happens if ignoredWorn steering components create a significant safety risk at speed, with poor directional stability and potential for sudden loss of steering control. The vehicle becomes tiring to drive on long journeys and may fail MOT tests. Complete steering overhaul typically required every 80,000-100,000 miles.
Independent garage
£200–£600
Parts only
£80–£300
Major
Suspension component wear (F70/F75)
Multiple suspension components wear at accelerated rates on the Fourtrak, with MOT data showing failures at 41-43 times the fleet average for bushes, joints, and pins. The solid axle design with leaf springs places high loads on rubber components, while the vehicle's off-road capability means many examples experience harsh usage that accelerates wear. Shock absorber bushes, suspension pins, and various joints require regular replacement.
What happens if ignoredWorn suspension components significantly affect ride quality, handling, and tyre wear patterns. The vehicle becomes uncomfortable on poor road surfaces and may feel unstable at speed. Progressive failure of multiple components is typical, requiring comprehensive suspension overhaul rather than individual component replacement.
Independent garage
£300–£800
Parts only
£150–£400
Major
Wheel bearing wear (F70/F75)
Wheel bearings on the Fourtrak fail at 45 times the fleet average rate according to MOT data. The solid axle design and heavy-duty usage patterns place high loads on wheel bearings, while the vehicle's age means many examples have original bearings approaching or exceeding their service life. Front wheel bearings are particularly susceptible to wear from steering loads and off-road use.
What happens if ignoredWorn wheel bearings create noise, vibration, and in severe cases can cause wheel wobble or complete bearing collapse. A collapsed bearing can cause loss of vehicle control and wheel separation. Early replacement when wear is detected prevents more expensive hub damage and maintains safe operation.
Independent garage
£120–£250
Parts only
£45–£120
1 more known issues tracked
Including wear items, electrical niggles, and generation-specific problems. Check a specific car to see which issues apply to its age and mileage.
Check a specific car →MOT failure hotspots
Based on DVSA MOT test data. These are the items where the Daihatsu Fourtrak fails at a significantly higher rate than the average car.
Track rod ends worn
Steering · 20-40k miles
MOT failure rate: 4507x the fleet average
Sample: 118 tests
Fixings missing or insecure
Bodywork · 60-80k miles
MOT failure rate: 780x the fleet average
Sample: 330 tests
Free play in the steering, measured at the rim ...
Steering · 40-60k miles
MOT failure rate: 498x the fleet average
Sample: 230 tests
Towbar fault
Bodywork · 60-80k miles
MOT failure rate: 383x the fleet average
Sample: 330 tests
Seat mounting fault
Seatbelts & Airbags · 20-40k miles
MOT failure rate: 285x the fleet average
Sample: 334 tests
Structural corrosion
Bodywork · 20-40k miles
MOT failure rate: 259x the fleet average
Sample: 226 tests
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Related
Daihatsu Fourtrak reliability FAQs
What are the most common problems with the Daihatsu Fourtrak?
The Daihatsu Fourtrak has 5 known issues across 2 severity levels. The most serious are: Structural corrosion at mounting points (F70/F75).
Is the Daihatsu Fourtrak reliable?
The Daihatsu Fourtrak has 1 dangerous and 4 major known issues. Most can be avoided with a thorough pre-purchase check and full service history.
How much does it cost to fix Daihatsu Fourtrak problems?
Repair costs range widely. The most significant issue (Structural corrosion at mounting points (F70/F75)) costs £1,500–£4,000 at an independent garage. Minor issues can be under £200. Always get a full inspection before buying.