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Nissan Stagea: VQ25DET turbocharger oil starvation from blocked 1mm oil-feed restrictor

VQ25DET turbocharger oil starvation from blocked 1mm oil-feed restrictor is a common engine fault on the Nissan Stagea on the 2001–2007 cars, and we rate it major. Putting it right costs $2,500 to $6,500 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 22 documented faults on the Nissan Stagea.

Vehicle
Nissan Stagea
Engine
VQ25-DET
Years
2001–2007
Fuel
petrol
Gearbox
auto
System
Engine

This page covers the Nissan Stagea as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Nissan Stagea faults22 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the Turbocharger yet. We would rather show none than show a picture of a different part.

What goes wrong

The M35 turbo variant (VQ25DET) feeds its Garrett turbo through a very narrow restrictor in the oil-feed banjo bolt, roughly 1mm. On cars with lapsed oil changes or old/sludged oil this restrictor blocks, starving the turbo bearing of oil and destroying the cartridge. Many surviving cars have had the banjo bored out or the feed line modified as a fix; a stock, unmodified feed on a high-km import is the concern.

What you would notice

  • Whistling, shrieking or grinding from the turbo that worsens over time
  • Blue smoke from the exhaust under boost or on overrun
  • Rising engine oil consumption
  • Loss of boost / power
  • Oil in the intercooler piping or intake

How to check it

Where to look. Turbocharger and its oil-feed banjo/line, exhaust side of the VQ25DET engine

  1. Check whether the turbo oil-feed banjo has been drilled out or the feed line modified (ask for evidence).

  2. Inspect the intercooler piping and turbo intake for oil, feel for shaft play in the turbo, and look for blue smoke on a cold start and under boost during a test drive.

  3. Review service history for regular oil changes on good-quality oil.

Parts involved: Turbocharger.

What it costs to put right

$2,500 to $6,500 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

  • “Has the turbo oil-feed restrictor been bored out or the feed line upgraded?”
  • “How often has the oil been changed and with what grade?”
  • “Has the turbo ever been replaced or rebuilt, and is there paperwork?”
  • “Is there any whistle, smoke or oil in the intake piping now?”

Now check the Nissan Stagea you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in the sources below. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them.

Nissan Stagea buyer questions

Is vq25det turbocharger oil starvation from blocked 1mm oil-feed restrictor serious on a Nissan Stagea?

We rate it major and common on the Nissan Stagea. The M35 turbo variant (VQ25DET) feeds its Garrett turbo through a very narrow restrictor in the oil-feed banjo bolt, roughly 1mm. On cars with lapsed oil changes or old/sludged oil this restrictor blocks, starving the turbo bearing of oil and destroying the cartridge. Many surviving cars have had the banjo bored out or the feed line modified as a fix; a stock, unmodified feed on a high-km import is the concern.

How much does it cost to fix on a Nissan Stagea?

$2,500 to $6,500 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Nissan Stagea years are affected?

Our research records this fault on the 2001–2007 Nissan Stagea. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Check whether the turbo oil-feed banjo has been drilled out or the feed line modified (ask for evidence). Inspect the intercooler piping and turbo intake for oil, feel for shaft play in the turbo, and look for blue smoke on a cold start and under boost during a test drive. Review service history for regular oil changes on good-quality oil. Look here: Turbocharger and its oil-feed banjo/line, exhaust side of the VQ25DET engine