LR
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EngineMedium severity

Loss of power and whistling from a split boost hose

Will get worse if left.

Symptoms

Sudden loss of pulling power, a whistle or hiss under load, and oil around the intercooler hoses.

Likely cause

The rubber boost hoses between turbo, intercooler and manifold soften with oil and age, then split or blow off.

Suggested fixes

Listed roughly in the order most owners try them.

  1. 1

    Replace the boost hoses

    Fit new hoses and good quality clamps. Silicone hoses last much longer than rubber.

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

    Clean oil from the intercooler

    A little oil is normal, but large amounts point to worn turbo seals or a blocked engine breather.

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

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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