EngineHigh
2.2 HDi turbo failure and timing belt neglect
- Typically appears
- 80,000+ miles
- What to inspect
- Check service history for timing belt renewal and listen for turbo whine
- Typical repair
- Timing / wet belt kit + water pump · £450–£1,100
Is the 2006–2024 Citroen Relay reliable?
Scored from 8 documented faults · reviewed by the VehicleFaults Research Team
Quick answer
3.4/ 10
Buy with cautionOn our documented-fault scoring the Citroen Relay rates 3.4 out of 10 · buy with caution. We hold 8 known faults for it and 4 are rated high severity, so the risk is real but contained. The weak points cluster around engine, electrical and suspension. A well-serviced example with evidence for the big-ticket items is usually a safe buy; the score describes the model, not the specific car in front of you.
Verdict · Walk unless the history is spotless
What the score is built from
- Critical
- 0
- High
- 4
- Medium
- 4
- Low
- 0
Weak points cluster around engine, electrical, suspension, bodywork.
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Check this carThe faults that decide it
BodyworkHigh
Rust on chassis rails and rear door bottoms
- Typically appears
- Age-related
- What to inspect
- Inspect chassis rails and door bottoms for corrosion
- Typical repair
- Body & corrosion repair · £250–£1,800
Engine BayHigh
Water ingress from the scuttle panel causing rusted injectors and ECU faults.
- Typically appears
- From 3 years or 30,000 miles
- What to inspect
- Open the bonnet and inspect the top of the engine block and injector housings for heavy rust or standing water. Check the scuttle panel seal against the windscreen for visible gaps.
- Typical repair
- Injector set replacement & coding · £500–£1,600
TransmissionHigh
Dual Mass Flywheel (DMF) wear causing juddering and metallic rattling.
- Typically appears
- 70,000-100,000 miles
- What to inspect
- Start the engine, leave it in neutral, and listen for a metallic rattle. Depress the clutch pedal halfway to feel for heavy pulsation or vibration coming through the pedal.
- Typical repair
- Clutch & dual-mass flywheel · £700–£1,600
ElectricalMedium
Instrument cluster and dashboard warning light faults
- Typically appears
- Age-related
- What to inspect
- Check all warning lights extinguish correctly after start-up
- Typical repair
- Diagnostics & follow-on repair · £90–£700
Costs are indicative UK independent-garage bands for budgeting and negotiation · never a quote.
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