UK Buyer Reliability Guide2 Known Faults Documented
Ford Mondeo Mk4 (CD345) Common Problems & Reliability
A massive jump in quality. Very robust and a favorite for long-distance driving. Watch for steering rack groans and tailgate wiring issues.
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Generation Periods
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Known Issues
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Critical Faults
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Moderate Issues
Select a Model Year Period
Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Ford Mondeo Mk4 (CD345) Faults & Repair Costs
High Risk
Steering Rack / Pump Groan
Est. Cost£400–£1,000
Internal filter in the PAS reservoir blocks, leading to pump cavitation and eventual rack failure.
Warning Signs:
Groaning noise on lock, Heavy steering, Bubbles in fluid
What to Check Before Buying:
- Listen for pump noise
- Check fluid color
Verified by IsItAGoodCar Research Team
Moderate Risk
Tailgate Wiring Loom Fracture
Est. Cost£100–£200
Wires in the rubber bellows between the body and tailgate snap over time.
Warning Signs:
Rear wiper not working, Boot release failing, Number plate lights out
What to Check Before Buying:
- Operate all tailgate functions
Verified by IsItAGoodCar Research Team
Essential Pre-Purchase Step
Buying a used Ford Mondeo Mk4 (CD345)? Always check for hidden finance and write-off history.
Mechanical problems are only half the battle. Over 1 in 3 UK used cars checked have unpaid finance or accident write-off records that could cause you to lose the car or thousands in value.
Inspection Checklist for Ford Mondeo Mk4 (CD345) Buyers
✓Check the steering for groaning; the reservoir filter can block, starving the pump.
✓Inspect the wiring loom in the tailgate bellows.
✓On the 1.6/2.0 TDCi, verify the DPF health if used for short trips.