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335d Slipping When Cold
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02-22-2013, 04:24 PM | #1 |
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335d Slipping When Cold
With this cold weather recently i have noticed that when i first start my car in the morning for the first few minutes of driving it is like the clutch is slipping. I know the 335d is a torque covertor but just so you get what i mean.
Basically the car revs alot for the speed you are traveling, is this common or should i be booking it in to BMW? |
02-22-2013, 04:28 PM | #2 |
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Sounds like it could just be crafty german engineering to heat up the engine faster on cold days.
Interested in what other diesel owners have to say.
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02-22-2013, 04:40 PM | #4 |
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I have the same, especially when cold.
I keep telling myself it's the torque converter. Once warm the car 'locks' into the gears. It can be painful at times when cold but I don't really press the loud pedal until the car is warm. It does feel like the clutch is slipping at times.. |
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02-22-2013, 07:03 PM | #7 |
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No cause for concern. This is the engine (and gearbox) undergoing it's cold start procedure, the idea being that if you can warm the engine up quicker, you may use more fuel/give out more CO2 in the short term, but will use less fuel/give out more CO2 in the long term. I think it's also has a secondary benefit in that it is better for the engine life too. A bit like driving the car to warm it up is better than leaving idling on your driveway.
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02-23-2013, 02:32 AM | #8 | |
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Completely normal in colder weather, has been for several generations of autoboxes.
For the ZF 6-speed... Quote:
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02-23-2013, 02:42 AM | #9 |
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All completely normal; mine does the same - thanks to HPete for the write-up
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02-23-2013, 05:39 AM | #10 | |
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I'm always super-interested in your contributions.. thanks but, what does that mean? If it's not controlled, or closed (locked?) what is it doing? Just what it pleases? lol If that makes sense! Thanks. Phil |
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02-23-2013, 12:27 PM | #11 | |
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HighlandPete |
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02-23-2013, 02:46 PM | #13 | |
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The older on/off design could feel a bit strange, if you didn't know what was happening. In fact some have commented it even felt it was another gear, when the 5-speed would engage the lockup in 5th, and revs would drop a few hundred revs. HighlandPete |
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02-25-2013, 07:21 AM | #15 |
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Good to have this confirmed. I was wondering this yesterday but had assumed it was not a fault.
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