What is shift range? - Mercedes-Benz Forum

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post #1 of 19 (permalink) Old 08-05-2012, 03:46 AM Thread Starter
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What is shift range?

I have a new automatic C220cdi coupe and the manual mentions shift ranges but only says shift ranges 1 to 3 exist even though the auto has 7 gears, so if driving at speed in 'D' and pull the left hand paddle (D-) that would take me from say 6 to 5 so I do not understand why only 1 to 3 are listed?
Is it saying that when I start to do a downhill journey I should keep pulling the paddel D- until I see a 1, 2 or 3 in the multifunction display? and because I used the paddle that the car will not go above that gear but can go down?
And if so, I would have thought that this would happen in any gear not just the first 3.

In other words is the 'shift range' different to the drive gear? so in D, then a single D- operation would give me 5 in the display not a 1,2 or 3 and if so where do I see the 1,2 or 3?
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post #2 of 19 (permalink) Old 08-05-2012, 05:05 AM
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Are not these examples rather than fact, with the paddle you can down shift and up shift within the range according to the car speed. I have no such wording in my CL book and its the same box. The car will auto change down to a lower gear when going down hills, but why you would need to down shift further is beyond me

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post #3 of 19 (permalink) Old 08-05-2012, 05:16 AM
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I am no expert on this and I have not read the manual but I suspect the padels only operate in 1 2 and 3rd gear?? I think I will download and read this manual. What year is the car?

ERIC.

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post #4 of 19 (permalink) Old 08-05-2012, 06:48 AM
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I am no expert on this and I have not read the manual but I suspect the padels only operate in 1 2 and 3rd gear?? I think I will download and read this manual. What year is the car?
Why should they, our 204 cars in the uk shift on all, no point in having them if they only worked on the first few gears. Say I am driving at 60 and want to overtake, I use the paddles, that is what they are for

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post #5 of 19 (permalink) Old 08-05-2012, 06:55 AM
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Why should they, our 204 cars in the uk shift on all, no point in having them if they only worked on the first few gears. Say I am driving at 60 and want to overtake, I use the paddles, that is what they are for
That is what kick down is for. But hey I am really not sure about this 123 bit, have not read the manual this man is talking about yet.

ERIC.

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post #6 of 19 (permalink) Old 08-05-2012, 08:29 AM Thread Starter
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It is a 2012 model UK car.

The shift range is in the printed manual and online, under driving and parking then automatic transmission then shift ranges
Interactive Owner's Manual [c204]
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post #7 of 19 (permalink) Old 08-05-2012, 08:51 AM
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It is a 2012 model UK car.

The shift range is in the printed manual and online, under driving and parking then automatic transmission then shift ranges
Interactive Owner's Manual [c204]
I see what you are talking about now, this is simply to use the transmission as a brake when traveling downhill, it gives you a manual style shift brake effect.

ERIC.

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post #8 of 19 (permalink) Old 08-05-2012, 08:58 AM
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That is what kick down is for. But hey I am really not sure about this 123 bit, have not read the manual this man is talking about yet.
It is not, with the paddle shift you do not have to waste fuel by Kicking down, plus you can only kick down when the time is right. With paddle shift you can drop down a gear or two while waiting for a time to overtake.

I personally do not like using the engine in reverse thrust, not good on the pistons and bores, brakes are much cheaper to use unless you have such a steep hill there would be a risk of the brakes overheating.

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post #9 of 19 (permalink) Old 08-05-2012, 09:12 AM
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Originally Posted by television View Post
It is not, with the paddle shift you do not have to waste fuel by Kicking down, plus you can only kick down when the time is right. With paddle shift you can drop down a gear or two while waiting for a time to overtake.

I personally do not like using the engine in reverse thrust, not good on the pistons and bores, brakes are much cheaper to use unless you have such a steep hill there would be a risk of the brakes overheating.
Read post 7. And I agree using the shift as a brake or dropping into a lower gear whilst waiting to pass does not help the engine any.

ERIC.

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- George Bernard Shaw to Winston Churchill.

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post #10 of 19 (permalink) Old 08-05-2012, 09:21 AM
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Originally Posted by eric242340 View Post
Read post 7. And I agree using the shift as a brake or dropping into a lower gear whilst waiting to pass does not help the engine any.


That is not what I said, no harm in dropping down when waiting to overtake, I just do not like engine braking to much, a very different thing

Malcolm

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