Actually MANY of the FWD models have trans problems, and the 2001 5sp seem to be especially susceptible. I think the real problem is a combination of fluid capability and software programming, because the exact same Aisin transmission is found in many other cars (GM, Toyota, etc) with little to no problems reported. Both of those manufacturers use their own control software which may/may not be easier on the trans than Volvo's software. Also both of those manufacturers specify a fluid change interval in the maintenance schedule, while Volvo doesn't. I have no idea how the various transmission fluid cooling systems compare either.

There is actually not a huge difference between the AWD and FWD versions of these transmissions either from what I can tell. They are different but it's internal gearing/differential stuff. And although I have no real evidence of this I can't recall the reports of AWD transmission problems being nearly as high as the reports from the FWD cars, but there are a lot more FWD cars out there too...

Also Volvo's OEM fluids are not synthetic, but switching to a synthetic fluid will do some serious good for the trans. Synthetic gear lubes and hydraulic fluids are better in every way.


The 4sp takes a DEX-III compatible fluid, the 5sp takes 3309/Toyota-IV compatible fluid. Both are available in synthetic form (regular 3309 is not synthetic).

The AWDs do seem to have some problems with bevel gears (angle gear/transfer case/etc) and that fluid should also be changed on a regular interval - Fully synthetic 75W-90 GL-5.

Also wrt your comment re colour/smell - I have yet to find a 'modern' (P1+) Volvo that didn't have burnt trans fluid. I don't know anything about what trans is in this guy's car, but he said he's just over 100k miles which is where I would expect the OEM fluid to start giving up...

An AutoRX treatment would be a good choice to help slowly and safely clean it out as well.
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1998 V70 AWD->FWD Turbo 200k+