M5 iDrive modes

MortenDK · 8th February 2005, 21:25

Hey all

I browsed the web, looking for some accelerating times in different modes with the new M5. Found this:

Mode P400 D5:

0-100 km/h 6,4 seconds
0-160 km/h 14,3
0-200 km/h 21,1

P400 S5:

0-100 km/h 6,0 seconds
0-160 km/h 13,4
0-200 km/h 20,6

P500 D5:

0-100 km/h 5,2 seconds
0-160 km/h 10,7
0-200 km/h 15,3

P500 S1:

0-100 km/h 5,1 seconds
0-160 km/h 10,8
0-200 km/h 15,3

P500 S5:

0-100 km/h 5,0 seconds
0-160 km/h 10,4
0-200 km/h 14,9

P500 S6:

0-100 km/h 4,8 seconds
0-160 km/h 9,7
0-200 km/h 14,3

P500 Sport S6:

0-100 km/h 4,8 seconds
0-160 km/h 9,8
0-200 km/h 14,4

Launch Control:

0-100 km/h 4,7 seconds
0-160 km/h 9,4
0-200 km/h 13,9

First of all, I know what P400 and P500 is, but what is going on with all the S6, S1, D5 etc.?

They also say that the car is doing better in Comfort mode than in Sport mode, can anyone confirm this (which one is better at sprints?)? And if it does, can you use Launch Control in Comfort mode?

All the best
Morten

vndkshn · 8th February 2005, 21:31

Honestly, it makes sense that the car does better in acceleration tests while in Comfort mode. The softer suspension setting would most likely allow the most weight transfer to the rear of the car, improving grip. Similar concept to running old shocks in the front of drag cars.

S1/S6/D5 etc are the different SMG settings. D being for automatic modes (computer shifts), S for the sequential modes (you shift). The numbers being the amount of woop *** the system uses to shift (the higher the number, the faster and harder the shift).

I imagine the car would allow launch control while in comfort mode.. i don't see why not.

MortenDK · 8th February 2005, 21:38

Hehe.

Well, its quite funny that the computer can't shift faster than you. Although it can in LC. Could be cool if you could set the aggressive computer auto shifting to shift for you while you are busy doing 911 turbo road kills

HomerUK · 8th February 2005, 21:38

The Dn ans Sn denote the gearbox setting.

S = Sequential/Manual
D = Drive/Auto

The n denotes the selected change speed with 1 being slowest and 6 fastest. D only goes to D5 and to activate S6 you must turn off DSC fully.

As for the comfort mode that only relates to the EDC dmper setting.

I've also heard that the best launch time was in comfort mode. It might be that under launch the softer damper setting allows some give during the brutal changes, helping reduce some of the wheel spin.

Hope this helps

edit:
Must of started this reply as you posted yours Dan

MortenDK · 8th February 2005, 21:43

Quote:

Originally Posted by HomerUK

The n denotes the selected change speed with 1 being slowest and 6 fastest. D only goes to D5 and to activate S6 you must turn off DSC fully.

Hmm, if you do a launch without using LC in S6 mode, do you do a lot of wheel spin? Or does it use some sort of backup DSC in S6 mode?

HomerUK · 8th February 2005, 21:56

Quote:

Originally Posted by MortenDK

Hmm, if you do a launch without using LC in S6 mode, do you do a lot of wheel spin? Or does it use some sort of backup DSC in S6 mode?

The only way to activate S6 is with DSC turned off fully. So the wheel spin will depend on how good the rear tyres are gripping.

Look at the launch videos, the cars have a small amount of spin in 1st, 2nd and 3rd. So if the tyres are cold or have little grip there could be huge wheel spin. One UK mag whilst testing in poor conditions recorded a fastest 0-60mph of 5.5 seconds, or something like that, with LC. This was due to the fact that the LC was so brutal and there was so little grip for the tyres it just wheel spun too much. They used left foot braking to get a sub 5 second time with a lower starting rev point.

MortenDK · 8th February 2005, 22:05

Quote:

Originally Posted by HomerUK

The only way to activate S6 is with DSC turned off fully. So the wheel spin will depend on how good the rear tyres are gripping.

Look at the launch videos, the cars have a small amount of spin in 1st, 2nd and 3rd. So if the tyres are cold or have little grip there could be huge wheel spin. One UK mag whilst testing in poor conditions recorded a fastest 0-60mph of 5.5 seconds, or something like that, with LC. This was due to the fact that the LC was so brutal and there was so little grip for the tyres it just wheel spun too much. They used left foot braking to get a sub 5 second time with a lower starting rev point.

So... In S6 mode (without LC) you can't just floor the car from a still standing launch like in an AMG for an example?

Edit: I'm talking in general (I mean, it has no driver aid to prevent it from wheel spinning in S6 mode without LC?)

HomerUK · 8th February 2005, 22:26

Quote:

Originally Posted by MortenDK

So... In S6 mode (without LC) you can't just floor the car from a still standing launch like in an AMG for an example?

Edit: I'm talking in general (I mean, it has no driver aid to prevent it from wheel spinning in S6 mode without LC?)

It has no driver aid what so ever in S6, thats the point of S6 its the ultimate performance setting on the car. If you had DSC cutting in it would reduce the power of the car and hamper performance. The LC is exactly the same and has no DSC intervention at all.

If you just floor the throttle it will slip to the degree based on the conditions, wet it would just sit and spin, dry it would launch and might slip a little.

The LC brings the car to over 4000 rmp then as you release the lever it dumps the clutch, hence the spin.

With the AMG's you can't turn off DSC fullly like the M cars. So if you are stationary and bury your foot DSC might interviene to remove spin, again it would depend on the grip available to the rear tyres.

For 0-100 timings there is more to it than just hitting the pedal to the floor. In an AMG it would involve holding the car with left foot braking whilst bringing the revs up, then lifting left and burying right. Its an art understanding the right rpm to launch from depending on the grip levels for the tyres.

Thats why in magazine's they will have many runs then take the best timings, or an adverage depending on the magazine.

I hope this helps clear up the S6 mode as the only electronic aids you have are for stoping the car ie ABS EBD etc.

MortenDK · 8th February 2005, 22:32

Yeah, its great. Thanks =)

Speed`Jan · 8th February 2005, 22:39

interresting information. i'll try them out as soon my m5 is deliverd