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Citroën C5 Aircross I faults

6 faults documented by at least two sources, listed by version then by mileage at onset when known.

Extra caution
Reliability
2.0/5

6 known faults

PureTech 130

  1. Degraded 'wet' timing belt (1.2 PureTech)

    Severity 3/3 · Serious

    On the 1.2 PureTech, the timing belt runs in oil and can break down. Its debris clogs the oil strainer, which causes oil pressure to drop and can destroy the engine. Stellantis extended the belt warranty to 10 years or 175,000 km, subject to servicing conditions, and introduced a new-generation belt in June 2022.

    Versions
    PureTech 130, PureTech 130 EAT8
    Onset
    not documented
    Repair
    not documented

  2. Oil consumption (1.2 PureTech)

    Severity 2/3 · Costly

    The 1.2 PureTech can consume a lot of oil, up to engine failure if the level is not monitored. Stellantis (Citroën UK) attributes this fault to the piston rings on engines built from April 2014 to July 2018, then to the oil separator on those built from February 2018 to February 2023; it is covered by the warranty extension, subject to servicing conditions. An owner of a C5 Aircross reports this oil consumption, together with premature belt deterioration.

    Versions
    PureTech 130, PureTech 130 EAT8
    Onset
    not documented
    Repair
    not documented

PureTech 130 EAT8

  1. Degraded 'wet' timing belt (1.2 PureTech)

    Severity 3/3 · Serious

    On the 1.2 PureTech, the timing belt runs in oil and can break down. Its debris clogs the oil strainer, which causes oil pressure to drop and can destroy the engine. Stellantis extended the belt warranty to 10 years or 175,000 km, subject to servicing conditions, and introduced a new-generation belt in June 2022.

    Versions
    PureTech 130, PureTech 130 EAT8
    Onset
    not documented
    Repair
    not documented

  2. Oil consumption (1.2 PureTech)

    Severity 2/3 · Costly

    The 1.2 PureTech can consume a lot of oil, up to engine failure if the level is not monitored. Stellantis (Citroën UK) attributes this fault to the piston rings on engines built from April 2014 to July 2018, then to the oil separator on those built from February 2018 to February 2023; it is covered by the warranty extension, subject to servicing conditions. An owner of a C5 Aircross reports this oil consumption, together with premature belt deterioration.

    Versions
    PureTech 130, PureTech 130 EAT8
    Onset
    not documented
    Repair
    not documented

BlueHDi 130

  1. Premature wear of the timing chain (1.5 BlueHDi)

    Severity 3/3 · Serious

    On the 1.5 BlueHDi (DV5R), oil carbonisation and high contact pressure can weaken the 7 mm camshaft chain, up to its breakage and engine failure; the first sign is a rattle on a cold start. C5 Aircross cars fitted with this engine and built from 14 June 2018 to 31 January 2023 are subject to a recall (code NY5).

    Versions
    BlueHDi 130, BlueHDi 130 EAT8
    Onset
    not documented
    Repair
    not documented

  2. AdBlue system failure (BlueHDi diesels)

    Severity 2/3 · Costly

    On BlueHDi diesels, the AdBlue tank (integrated pump, sensor or control unit) can fail. A countdown appears on the dashboard and, once it reaches zero, the engine no longer restarts. C5 Aircross diesel owners report this fault, sometimes requiring replacement of the AdBlue tank.

    Versions
    BlueHDi 130, BlueHDi 130 EAT8, BlueHDi 180 EAT8
    Onset
    not documented
    Repair
    not documented

BlueHDi 130 EAT8

  1. Premature wear of the timing chain (1.5 BlueHDi)

    Severity 3/3 · Serious

    On the 1.5 BlueHDi (DV5R), oil carbonisation and high contact pressure can weaken the 7 mm camshaft chain, up to its breakage and engine failure; the first sign is a rattle on a cold start. C5 Aircross cars fitted with this engine and built from 14 June 2018 to 31 January 2023 are subject to a recall (code NY5).

    Versions
    BlueHDi 130, BlueHDi 130 EAT8
    Onset
    not documented
    Repair
    not documented

  2. AdBlue system failure (BlueHDi diesels)

    Severity 2/3 · Costly

    On BlueHDi diesels, the AdBlue tank (integrated pump, sensor or control unit) can fail. A countdown appears on the dashboard and, once it reaches zero, the engine no longer restarts. C5 Aircross diesel owners report this fault, sometimes requiring replacement of the AdBlue tank.

    Versions
    BlueHDi 130, BlueHDi 130 EAT8, BlueHDi 180 EAT8
    Onset
    not documented
    Repair
    not documented

BlueHDi 180 EAT8

  1. AdBlue system failure (BlueHDi diesels)

    Severity 2/3 · Costly

    On BlueHDi diesels, the AdBlue tank (integrated pump, sensor or control unit) can fail. A countdown appears on the dashboard and, once it reaches zero, the engine no longer restarts. C5 Aircross diesel owners report this fault, sometimes requiring replacement of the AdBlue tank.

    Versions
    BlueHDi 130, BlueHDi 130 EAT8, BlueHDi 180 EAT8
    Onset
    not documented
    Repair
    not documented

Hybrid 225 ë-EAT8

  1. High-voltage battery: risk of overheating and fire (Hybrid 225 recall)

    Manufacturer recall

    The group's plug-in hybrids built between 2019 and 2022, including the C5 Aircross Hybrid, are subject to a recall campaign launched in September 2025: a high-voltage battery fault, rare but serious, can cause overheating and, in extreme cases, fire. Affected owners are being called in to a dealership.

    Fixed free of charge by a dealer and not counted in the reliability score: ask for proof the work was done (invoice, or a VIN check at a dealer).

    Versions
    Hybrid 225 ë-EAT8
    Onset
    not documented
    Repair
    not documented

No recurring fault documented for: PureTech 180 EAT8, Hybrid 136 ë-DCS6.

Price and diagnose repairs

Read fault codes

An OBD scanner plugged in under the steering wheel shows stored fault codes, even with warning lights off: useful during the test drive.

Parts and maintenance

Compare prices of parts for the Citroën C5 Aircross I (timing, brakes, filters) to estimate the repairs to plan for.

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