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ATF Renewal[850/1994] posted by Richard Outten on
Sunday, 10 May 1998, at 5:52 p.m.
I thought I would take the time to report back on my experience of changing the ATF on my 850 T5. The car has driven 60,000 Kms. I followed the instructions in the Haynes manual (previously entered these on the Brickboard). Contrary to Volvo Australia dealer service advice, the drain plug was easy to find, easy to remove and had a nice alloy washer that wasn't damaged (so I re-used it). I drained the ATF from through the drainplug, then followed the instructions to pump the ATF out via the Oil cooler union with the transmission. A little bit of running around to get the right sized plastic hose to fit. I used about 7 litres of new ATF (so the procedure gets most of the old stuff out). I chose to use Castrol Transmax a synthetic ATF. The procesure took about 3 hours, but was worth it. The old stuff was brown and burnt. The shifting is now very smooth.
I have kept a glass jar of the old ATF and will be taking it up to the Volvo service manager, for him to see what 60,000kms does to ATF.
If it wasn't for entries on the brickboard I would have assumed Volvo changed the ATF during services. Anyway I recommend everyone check the colour and smell of their ATF and replace it if it's burnt. Don't expect Volvo to do it (maybe they want your transmission to fail so you have to pay thousands to get a new one).
Regards, Richard Outten. 94 850 T5, SuperChip, Bilsteins & Eibachs (soon),K&N