LR
All faults
EngineMedium severity

Tdi low power or black smoke

Will get worse if left.

Symptoms

Sluggish acceleration, lots of black smoke under load, turbo not spooling.

Likely cause

Split intercooler hoses, a blocked air filter, worn injectors, an incorrectly timed injection pump or a failed turbo.

Suggested fixes

Listed roughly in the order most owners try them.

  1. 1

    Check boost and intercooler hoses

    Look for oil mist or splits in hoses and the small boost pipe to the injection pump.

    Difficulty:
    Easy DIY
    Cost:
    £ (Under about £50 in parts)
  2. 2

    Service or replace injectors

    Have injectors tested and reset. Worn nozzles cause smoke and poor economy.

    Difficulty:
    Moderate DIY
    Cost:
    ££ (About £50 to £300)
  3. 3

    Set injection pump timing

    Use a timing pin and set to the correct specification.

    Difficulty:
    Experienced DIY
    Cost:
    £ (Under about £50 in parts)
  4. 4

    Replace the turbocharger

    If there is excess shaft play or oil in the inlet, a reconditioned turbo will cure it.

    Difficulty:
    Moderate DIY
    Cost:
    £££ (Over about £300)

This is general guidance gathered from owner experience and workshop practice, not a substitute for a workshop manual or a qualified mechanic. Costs are rough parts-only guides. Brakes, steering and suspension work affects safety, so if in doubt have it checked professionally.

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