I bought some power steering fluid today to just suction out the reservoir and replace it, after I had been driving for quite a bit.
When I filled the reservoir it was up to the top line, this is after turning the wheel lock to lock a few times and re-checking. About 5+ hours later I checked again and the fluid is down to the first line.
I've added fluid to some older cars and they've had a hot/cold min and max. How does it work for the M3? Should we be doing the measurement hot or cold?
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