How much should I pay to replace the transfer-case on my 2010 Mazda CX-9?
Asked by Joseph
I have reasonably low mileage 2010 Mazda CX-9 that I've been told needs a new transmission and transfer-case. There seems to be a lot of issues with this particular part and this particular model. I paid $2200 just to get it back on the road without the full replacement of the transmission and transfer case, but this included a full service plus fixing the brakes which were in disrepair.
I now need to pay probably another $4000 to $6000 to replace the transmission and case which seems like too much on a Japanese car with such low mileage. The car was privately purchased on a car loan so we can't dump and run to cut our losses with this particular vehicle. What can I do here?
Answered by CarsGuide8 Feb 2021
I’m not in a position to guide you around the financial aspects of this problem, Joseph, but it remains that the transfer-case in this model Mazda has, indeed, earned a very patchy reputation. It seems that Mazda never specified an oil-change interval for the transfer-case and, over time, the oil can break down and lead to high operating temperatures and internal wear of the mechanical parts. This can include metal fragments breaking off and damaging other components, as well as the high temperatures causing fusing (damage) to the metal parts. In some cases, that can also damage the spline shaft that joins the transmission to the transfer-case and, if that happens, the transmission will also be severely damaged. This has been known to occur in cars with as little as 70,000km on board.
The reason the transfer-case oil wasn’t changed when you had the car serviced is simply because that task is not listed as a service item for this car. Which was, remember, the problem in the first place. Most workshops now agree that the CX-9’s transfer-case oil be changed every 60,000km or so, but sadly, it seems that’s all a bit too late for you. There was a Special Service Bulletin issued for this problem in the USA, but don’t assume that this will also apply to Australian Mazdas. That said, I’d still be having a chat with Mazda Australia’s customer service department.
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