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How do I keep the car still at traffic lights 700

I am having autobox installed in my manual diesel on Friday and was wondering, many drivers that I know of cars with autoboxes leave the box in drive and keep the foot on the brake pedal when they are waiting at traffic lights. Won't that wear the transmission down?
--
George Holmer, Belgium, Europe, 1987 745 GLE Turbo Diesel Intercooler (D24TIC/ZF22) 200k; 1988 745 Turbo Intercooler (B230ET/M46) 290k; 1988 745 GL (B200E/M47) 190k








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    Only converter has relative motion during stop...nothing to wear down!! 700

    Ok, the hydraulic pump is moving, it would also move in neutral. But the rest of the input shaft would also move, it's stationary during stop.

    You don't put your standard trans in neutral during stop, do you?
    If you do, THAT's bad for the trans and clutch.








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    How do I keep the car still at traffic lights 700

    Actually it is correct to leave it in gear. Shifting back and forth to neutral all the time puts more wear on the clutches in side the tranny.
    --
    David Hunter








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    How do I keep the car still at traffic lights 700

    Thats what a toqure converter is for, it transfer's toqure to motion, and this you must have a spin fast enough to make the motion, if whats say the idle was lower then what it is supposed to be the car would just sit there at idle, wouldnt worrie about it, there designed a heck of alot differently then Manuals ( aka sticks ). You do loose a decent amount of power those with an automatic.








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    How do I keep the car still at traffic lights 700

    Hi George,
    Don`t worry about it, you are only holding it against a bit of drag from the torque converter, there are no clutches or anything being slipped under load.
    However I think you were fitting a ZF box, if this is the case the important thing to remember is don`t rev the engine hard when stationary.
    This is reckoned to be the main cause of premature failure of the clutches etc. that these boxes tended to suffer from.
    Colin.








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    How do I keep the car still at traffic lights 700

    Don't worry, they are designed for this.

    What you do NOT want to do is to use the trans to keep the car stationary while stopped on a hill (ie. revving the engine just enough to keep the car from rolling back). Just stay hard on the brakes, and the trans won't get hurt when the engine is at idle speed.

    Also, don't shift from D to R (or from R to D) before the car has come to a complete stop. A lot of people slam the shifter into gear while the car is still rolling in the opposite direction. Come to a complete stop before you shift.








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    How do I keep the car still at traffic lights 700

    I don't know if it wears the transmission down or not? When I was taught to drive with an auto tranny I was told it was the correct thing to do though.
    --
    1988 760Tic - 155,550 1966 M-B 230 sedan - 98,000 - Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us. - Bill Watterson







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