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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 09-30-2004, 11:33 AM   #1 (permalink)
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When I start the car the first time & I pull away I notice that the car is jerking as it accelerates...it isnt bad unless I really hammer it...if I hammer it it kangaroos!!

BUT, it is then fine...pulls away normally every time!

So it just does it when you start the car!

Is this something to do with the ECU and "limp mode"?

Thanks for any help,

J...
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Old 09-30-2004, 11:49 AM   #2 (permalink)
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how cold is it? it could be that the car needs to warm up
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Old 09-30-2004, 08:35 PM   #3 (permalink)
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mine does it too.... i just keep it under 3000rpm until it is at normal temp then it is fine. I have yet to drive in winter so i do not know if it will get worse yet.
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Old 09-30-2004, 08:40 PM   #4 (permalink)
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yah uhm, DRIVE EASY when your engine is warming up, this is the word time for your engine, parts are warming up and expanding at different rates and this causes wear. When you floor it, you put a crapton of stress on parts, which casues excessive wear since the entire engine hasn't uniformly heated up yet. This is why you use lightweight oil in the winter, to try to counteract this effect as much as possible, but this dosn't help too much at all if your flooring 5 mins after crankup.

I usually wait at least 5 minutes after my water temperature gauge hits it's operating temperature to let the transmission warm up a bit etc etc.

You don't want to idle either, these engines were designed to run under a load, not idling out of gear. That and the engine will warm up faster if you put a little bit of gas in it. Keep the rpm's down from 3,000 and try not to hammer it (even if you are keeping the rpms below 3,000, it's the stress that really hurts it)


I doubt this is limp mode. Don't get the notion that your car is limping... hobbling back and fourth like a gimp would. heh lol. Limp mode (as best as I know) is when your transmission computer goes into an emergancy state, alerts the ECU so the engine wont rev too high and it wont shift into top gear (This is with an automatic and I'm not sure if I'm totally correct)
There's usually somthing really really messed up when that happens like the planitary gear's missing like 10 teeth and the chunks are floating around or somthing.. heh.
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Old 10-01-2004, 05:00 AM   #5 (permalink)
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mine kangaroos a bit 1st thing in the morning as well.... i'm pulling away gently, not caning it at all. by the time i get half a mile down the road to the next lights & pull away again it's fine.
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Old 10-01-2004, 09:14 AM   #6 (permalink)
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The manual says in cold temps to let the car idle for 30 seconds. There after keep the revs down as low as possible until you hit operting temp..

In warmer temps dont let it warm up at all, but keep the revs down until at operating temp..
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