P500 not p500? E60 M5.

[TheAngryDog]

I think my E60 M5 is broken, or I am. Aside from a note change, I don't feel any difference between p400 and p500. My M button is p500s, s5, MDM. I would expect to feel a surge when accelerating in p400 and pressing the M button but I do not. Does anyone else experience this?

[skeeterm5]

From memory, I also had M1 set up as P500, S6, MDM and if I was driving along at constant throttle and pressed the M button there was a noticeable surge forward.

[AW10]

skeeterm5 said:

From memory, I also had M1 set up as P500, S6, MDM and if I was driving along at constant throttle and pressed the M button there was a noticeable surge forward.

Mine definitely does that. The light on the button by the shifter should come one as well. What happens when you just press the P500 button?

[TheAngryDog]

skeeterm5 said:

From memory, I also had M1 set up as P500, S6, MDM and if I was driving along at constant throttle and pressed the M button there was a noticeable surge forward.

I feel something, but it isn't pronounced like it was on my E39.

AW10 said:

Mine definitely does that. The light on the button by the shifter should come one as well. What happens when you just press the P500 button?

My lights all come on, MDM comes on, active seats come on etc. It just doesn't feel that quick.

[AW10]

Worth reading the codes to see if the car thinks something's not right or if it's just your imagination.

[rassi]

How long have you had the car? Has it changed or always done this? I recall a distinct difference between P400 and P500, P400 feeling like it was artificially shackled. The throttle response also a give away.

[wolfracesonic]

How do you access your extra 100bhp, the button by the shift lever or the M button on the steering wheel? I've just checked mine and it is possible to press the M button on the wheel but still only have 400bhp. Go into 'I' in your idrive and select Mdrive, you can individually select power, EDC and traction control parameters; as said, you should feel a surge when the extra power kicks in.

[TheAngryDog]

AW10 said:

Worth reading the codes to see if the car thinks something's not right or if it's just your imagination.

It is on the list of things for me to do, just haven't had the time since getting home and the car spent all day at the Indy's yesterday getting some work done.

rassi said:

How long have you had the car? Has it changed or always done this? I recall a distinct difference between P400 and P500, P400 feeling like it was artificially shackled. The throttle response also a give away.

I've had it around 6 weeks. I hadn't really given it much in P400 mode so I do not have an early reference, only what I experienced over the weekend. I did find though that the M button was only putting it in P500, rather than P500S, so I have now changed it, and selected S6 / DSC off. The throttle response in P500S is definitely different to the P400 and P500.

wolfracesonic said:

How do you access your extra 100bhp, the button by the shift lever or the M button on the steering wheel? I've just checked mine and it is possible to press the M button on the wheel but still only have 400bhp. Go into 'I' in your idrive and select Mdrive, you can individually select power, EDC and traction control parameters; as said, you should feel a surge when the extra power kicks in.

I usually use the M button, see above about the settings. I've also tried it from the Power button but it feels the same as P400. I need to do some timed runs I think.

[Schermerhorn]

Is MDM engaged and configured into the M button setting?

Try

P500S

MDM on

S5 gear mode


That usually is the best setting for moving along.

[Dan_M5]

skeeterm5 said:

From memory, I also had M1 set up as P500, S6, MDM and if I was driving along at constant throttle and pressed the M button there was a noticeable surge forward.

DSC needs to be off for S6 so no MDM iirc

[Shaoxter]

Depends how you're driving it, I use P500 all the time but there have been cases where I've forgotten to push the power button and you won't really notice a difference when driving normally. However under WOT and higher up the rev range, you'll definitely notice a difference!

[skeeterm5]

Dan_M5 said:

DSC needs to be off for S6 so no MDM iirc

You may well be right, in my memory in had 7 settings but it could easily be just 6?

[AW10]

I'm not a big fan of P500 around town as the transition between closed throttle and ever-so-slightly-open throttle is anything but smooth and the car kangaroos on me. Once underway it's just peachy though.

[ftypical]

Surely, if you’re holding a steady throttle pedal position when pressing the button, the only way to feel a difference would be if the engine management were to open the throttle butterfly some more and change the fuelling and ignition to suit?

[AW10]

My understanding of the difference between P400 and P500 is that in P400 the throttle butterflies only open perhaps 85% so that's how the power output is reduced. This also means that the pedal to butterfly mapping is different and I believe its more aggressive in P500 as well hence if you switch modes at a steady pedal position the car will accelerate.

[Mikeeb]

the P500 button by the gearstick sharpens the throttle map and allows the throttle butterflies to fully open to give the 500bhp. You can set the M button on the steering wheel to select P500 and your desired suspension and DSC settings via I-Drive.

To test, accelerate steadily, with a low throttle opening and circa 2000 rpm and press the P500 button by the gearstick. Your should feel an increase in acceleration purely due to the change in the throttle map, opening the butterflies more.

You only really feel the power increase above 6000rpm, so if you accelerate at full throttle, once past 6000 rpm hit the power button by the gearstick you will feel a significant change.

If not something is wrong.

[matty13]

Tbh I never used p500, if I was in traffic then I would use the p400 mode. If not in traffic them M button all the way . I had it set for max everything . It was epic . Still miss the m5 now

[TheAngryDog]

I can confirm that p500 is p500 after testing properly tonight, thanks all.