Automatic Transmission Wear Question - BMW Forum -

3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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post #1 of 2 (permalink) Old 06-14-2005, 01:41 AM Thread Starter
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Just a question. I've been reluctant to really beat the snot out of the car because of something the previous owner told me. When you've got the automatic transmission, it's bad for it if you "shift it yourself", i.e, drop it in "1" at the light, and when it goes green, drop the hammer, pull it to redline, and bump the lever into "2", and then likewise, "3". I was told this can "burn out" the gears, and so it's better to leave it in "3" if you want to be sporty and just let the car shift itself.

I've tried the shift-it-yourself procedure once, and handily dished out punishment to a Honda Prelude. I also on occasion use the ratios to slow me down if I have to make a quick highway stop (lights on the highways here, grr)... that is, I wait until I'm in the right speed range, and then drop the lever in "2" for some extra compression and to save wear on the brakes.

What do you guys know about this, and am I doing bad things to the poor tranny? True or false on the owner's advice?

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Changed the car's name, now it's - Roxanne -1985 325e
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post #2 of 2 (permalink) Old 06-14-2005, 08:51 AM
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bad man working is an unknown quantity at this point
An auto-box is designed to protect its self i.e. then using it as an engine brake it wonít change down until it can without damage as for using it as a manual thatís what the positions are there for. When you boot it hard the torque converter takes most of the hammer which is a fluid coupling and virtually indestructible. If you already had slip in the box then you finish it off, but if the box is good and oil/filter is change as it should be and you use a good AFT then you should be able to do what you like with the box thatís what itís built for.
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