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Land Rover Defender I faults

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

Extra caution
Reliability
2.0/5

5 known faults

Td5 2.5 122 ch

  1. Chassis and bulkhead corrosion

    Severity 2/3 · Costly

    The AA cites corrosion of the chassis, bulkhead and door frames among the common faults of older Defenders. Au7o points to the areas most affected: the rear cross-member and spring mounts, as well as the bottom of the footwells and the bulkhead feet.

    Versions
    Td5 2.5 122 ch, 2.4 TD Puma 122 ch, 2.2 TD Puma 122 ch
    Onset
    not documented
    Repair
    not documented
  2. Cylinder head gasket (stretch-bolt cylinder head bolts) on the Td5

    Severity 2/3 · Costly

    The Td5 cylinder head gasket is reported as a weak point: angle-tightened cylinder head bolts that lose their clamping force, leading to a leak into the coolant. A parts seller specifies that these bolts must not be reused. Earlier overheating may have warped the cylinder head.

    Versions
    Td5 2.5 122 ch
    Onset
    not documented
    Repair
    not documented
  3. Oil pump gear bolt on the Td5

    Severity 3/3 · Serious

    Owners' forums describe the oil pump gear bolt that can work loose (fitted without thread-locker according to one of them), causing an oil pressure drop and, in the worst case, damaged bearings. The real frequency remains uncertain: one owner whose engine failed had the bolt properly tightened.

    Versions
    Td5 2.5 122 ch
    Onset
    not documented
    Repair
    not documented
  4. Td5 injector wiring harness contaminated with oil

    Severity 1/3 · Annoying

    The AA cites the Td5 injector wiring among the common faults. AutoPartsPro describes oil contamination of the harness that can cause malfunctions; Auto Express also links running problems to a faulty injection harness or a faulty ECU connector.

    Versions
    Td5 2.5 122 ch
    Onset
    not documented
    Repair
    not documented

2.4 TD Puma 122 ch

  1. Chassis and bulkhead corrosion

    Severity 2/3 · Costly

    The AA cites corrosion of the chassis, bulkhead and door frames among the common faults of older Defenders. Au7o points to the areas most affected: the rear cross-member and spring mounts, as well as the bottom of the footwells and the bulkhead feet.

    Versions
    Td5 2.5 122 ch, 2.4 TD Puma 122 ch, 2.2 TD Puma 122 ch
    Onset
    not documented
    Repair
    not documented

2.2 TD Puma 122 ch

  1. Chassis and bulkhead corrosion

    Severity 2/3 · Costly

    The AA cites corrosion of the chassis, bulkhead and door frames among the common faults of older Defenders. Au7o points to the areas most affected: the rear cross-member and spring mounts, as well as the bottom of the footwells and the bulkhead feet.

    Versions
    Td5 2.5 122 ch, 2.4 TD Puma 122 ch, 2.2 TD Puma 122 ch
    Onset
    not documented
    Repair
    not documented
  2. Oil pump on the 2.2 TD

    Severity 3/3 · Serious

    The PistonHeads guide notes that oil pump failure is not unknown on the 2.2; Au7o describes it as a risk of oil starvation and engine damage. A Land Rover recall covering a range of serial numbers is mentioned by owners: have the VIN checked at a dealership.

    Versions
    2.2 TD Puma 122 ch
    Onset
    not documented
    Repair
    not documented

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 Land Rover Defender I (timing, brakes, filters) to estimate the repairs to plan for.

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