Gap Turbos

1.6 HDi / TDI Turbo Fitting Guide (Peugeot, Citroen, Ford, Mini, Volvo, Mazda)

Why the 1.6 HDi/TDi turbo gets its own guide

The PSA DV6 1.6 HDi engine (shared across Peugeot, Citroen, Ford, Volvo, Mazda, Mini, and others) fits the GT15V or TD02 frame turbo and has a notorious oil-feed problem. The OEM oil feed pipe contains a fine mesh gauze that blocks with soot and oil deposits, starving the new turbo of oil within hours. Most “early failure” warranty claims on this engine are from skipping the oil feed pipe replacement.

Affected engines

  • PSA DV6TED4 (9HX, 9HY, 9HZ): 89-110hp
  • PSA DV6ATED4 (9HV): 90hp
  • PSA DV6UTED4 (9HU): 90hp
  • Ford DLD-416 (HHDA, HHDB, HHJA): 89-115hp — same engine family
  • Volvo D4164T (D4164T2-T6): 90-110hp
  • Mazda Y601: 90hp
  • Mini W16D16: 109hp

Mandatory checks before fitting

  • Replace the entire oil feed pipe assembly. Do NOT try to clean the old one. Genuine PSA part 1119 P9 or aftermarket equivalent.
  • Remove and clean the oil return pipe. Sludge buildup is normal on high-mileage units.
  • Drop the sump and inspect for soot or oil-feed restriction at the engine-side feed point. Clean the oil pump pickup if possible.
  • Change oil AND filter using a fully-synthetic 5W-30 ACEA C2 spec (PSA B71 2290 approved).
  • Inspect intercooler for oil contamination; flush with engine cleaner or replace if heavily contaminated.
  • Inspect and clean the EGR valve. Replace seal.

Fitting torques

  • Turbine housing to exhaust manifold studs: 25 Nm
  • Compressor housing to intake adapter: 8-10 Nm
  • Oil feed banjo bolts: 30 Nm with NEW copper washers
  • Oil return flange: 10 Nm
  • Downpipe to turbine: 25 Nm

First start procedure (critical)

  • Pour 20-30ml of fresh engine oil down the oil feed before connecting it.
  • Crank the engine with fuel disabled (pull the FRP relay) until oil pressure shows.
  • Restore fuel, start, hold at idle 5 minutes. Inspect for leaks at all interfaces.
  • Drive gently for first 50 miles. Avoid full boost. Use 50+ mph occasionally to let the DPF (if present) regenerate.
  • Recheck oil level after first drive; this engine is sensitive to oil starvation.

Why this engine eats turbos when fitted wrong

The DV6 has a small oil pump and a long, narrow oil feed path to the turbo. Any restriction in the feed pipe (the gauze) drops oil pressure at the turbo bearings during cold start. A starved bearing wears in seconds. The car may drive normally for the first few hundred miles then progressively whine, smoke, and fail. This is not a turbo defect; it is a fitting defect.

Available units

We carry reconditioned and new GT1544V (753420-5005s, 9663199280) for the 9HZ variant, plus the TD025M-09T (49173-07508, 9682881780) for the early 75hp 9HX/9HV. See Peugeot turbochargers, Citroen, Ford, Volvo, Mazda.