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Change ATF? Rear engine seal change? 700 1986

posted by  someone claiming to be Brian Oliver on  Mon Jan 28 03:09 CST 2002 [RELATED]

The conventional wisdom seems to be that ATF doesn't need changing, but cared-for RWD Volvos go way further than conventional cars and can use a fluid change at about the age/mileage you'd be considering scrapping some cars.

I never did it on the 740 (AW71?) and OD the solenoid gummed up and rear bushing failed at 250,000 km. I think a fluid change would have prevented the OD problem and much delayed the bushing problem.

On our 940, I had a flush and fill at 180,000 km despite the fact that nothing appeared wrong. The mechanic said "much crud" including metallic bits came out, and pointed out that those metallic bits can hang up in the solenoid-controlled valves due to the magnetic field. Also, the transmission did actually improve in action over time after the flush and fill.

The ZF may not have a solenoid, so you have one less reason. Even so, I would do it.






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