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MajorCommonFluid Leaks

Mazda Tribute: AWD Power Transfer Unit (PTU) Oil Seal Leak

AWD Power Transfer Unit (PTU) Oil Seal Leak is a common fluid leaks fault on the Mazda Tribute on the 2000–2007 cars, and we rate it major. Putting it right costs $600 to $3,500 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 7 documented faults on the Mazda Tribute.

Vehicle
Mazda Tribute
Years
2000–2007
Fuel
petrol
Gearbox
auto
System
Fluid Leaks

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

All Mazda Tribute faults7 documented faults on this model

What you are looking at

No photograph available

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

What goes wrong

AWD Mazda Tributes use a power transfer unit mounted on the right side of the automatic transmission to drive the rear propshaft. The PTU input shaft seal and output flange seal are known to develop leaks with age, allowing PTU oil to drip onto the exhaust system and produce burning smell or smoke. Undetected oil loss leads to complete PTU seizure and potential damage to the rear propshaft and rear differential. The leak is often masked by accumulated road grime and missed at routine WOF inspection.

What you would notice

  • Burning oil smell after driving, particularly when parked
  • Smoke or steam from under the centre of the vehicle near the exhaust
  • Oil drips on driveway under the centre of the vehicle
  • PTU oil level low when checked at fill plug

How to check it

Where to look. Power Transfer Unit (PTU) on right side of automatic transmission, centre of vehicle underside

  1. Inspect the PTU from underneath — look for oil wetness around the input seal face and the rear output flange where the propshaft connects.

  2. Check the exhaust centre pipe for oil baking onto the heat shield.

  3. Check PTU oil level via fill plug — it should be at the bottom of the plug threads.

  4. Any burnt oil smell after a test drive warrants a full underside inspection.

Parts involved: Transfer case.

What it costs to put right

$600 to $3,500 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 PTU oil level ever been checked or the fluid changed?”
  • “Any burning smell from under the vehicle after driving?”
  • “Has the PTU ever had a seal replacement or been serviced?”

Now check the Mazda Tribute 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 published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Mazda Tribute buyer questions

Is awd power transfer unit (ptu) oil seal leak serious on a Mazda Tribute?

We rate it major and common on the Mazda Tribute. AWD Mazda Tributes use a power transfer unit mounted on the right side of the automatic transmission to drive the rear propshaft. The PTU input shaft seal and output flange seal are known to develop leaks with age, allowing PTU oil to drip onto the exhaust system and produce burning smell or smoke. Undetected oil loss leads to complete PTU seizure and potential damage to the rear propshaft and rear differential. The leak is often masked by accumulated road grime and missed at routine WOF inspection.

How much does it cost to fix on a Mazda Tribute?

$600 to $3,500 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 Mazda Tribute years are affected?

Our research records this fault on the 2000–2007 Mazda Tribute. 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?

Inspect the PTU from underneath — look for oil wetness around the input seal face and the rear output flange where the propshaft connects. Check the exhaust centre pipe for oil baking onto the heat shield. Check PTU oil level via fill plug — it should be at the bottom of the plug threads. Any burnt oil smell after a test drive warrants a full underside inspection. Look here: Power Transfer Unit (PTU) on right side of automatic transmission, centre of vehicle underside