Dumb Question re. PSM

[bavarian]

This may be a dumb question, but is there a way to tell if PSM is kicking in? On all my other cars (BMW, M-Benz) the orange indicator in the dash display lights up when the electronics kick in. So far, I either have not had it activated (which I doubt) or there is no sign to confirm that it has interfered.

Edited January 20, 2005 by bavarian

[earlyapex]

There's a yellow light on the dash.

[bavarian]

I know there is a yellow light which warns when the PSM is off. Is this supposed to flash when the PSM engages? Mine never has, and I'm sure I've been in slippery conditions when some electronic override took place...(I also have LSD)

Edited January 21, 2005 by bavarian

[ar38070]

You cannot have an LSD with PSM unless you installed it aftermarket as they are not compatible.

There is an indicator light in the dash that lights when PSM activates. Check your manual. The whole car will shudder when PSM activates. Kind of like ABS but you will feel it in the seat of your pants and through the steering wheel. The activation limits for PSM are quite high. If you want to feel it then put your car on a skid pad.

[highexplosive]

Just throwing my experience in, i recently had my car out on a windy coastal road, and my PSM activated at least three times, felt in the brake pedal? No light flashed in my dash, as i thought it would. Every time it activated, i was headed into sharp turns, in which i was going to fast...

[bavarian]

You cannot have an LSD with PSM unless you installed it aftermarket as they are not compatible.

There is an indicator light in the dash that lights when PSM activates.  Check your manual.  The whole car will shudder when PSM activates.  Kind of like ABS but you will feel it in the seat of your pants and through the steering wheel.  The activation limits for PSM are quite high.  If you want to feel it then put your car on a skid pad.

<{POST_SNAPBACK}>

That's what I thought--as it turns out my MY '04 C4S cab does have PSM and LSD (option 220) as a factory option--see a previous post where Loren discovered this.

Highexplosive--your experience caused me to post this thread, and seems to bear out my observation that there is no indication on the dash to alert me to the PSM kicking in. I wonder if there has been a change in the software?

Edited January 21, 2005 by bavarian

[ar38070]

Just to be sure, have you checked the manual? It will show you which indicator should light if there is one.

[ar38070]

You have a weird car. Option 220 is not listed in the order guide on this site for a '04 C4S cab.

[bavarian]

Check this thread

http://www.renntech.org/forums/index.php?showtopic=3787

B&M SSK Installed--a few questions

BTW I just spoke to Porsche service, and they tell me that the light on the dash will come on, but that the C4S has such high limits that it would take rather extreme situations (such as tracking the car and drifting) before the PSM kicks in. That seems to answer my question, especially since the tech was speaking from experience with his C4S.

Edited January 21, 2005 by bavarian

[Scouser]

In my car, when PSM kicks in a red triangle in the dash with "!" in middle lights up. It's not a fault (according to my book) it just signifies that PSM has kicked in. It goes off just as quick as it comes on.

[ar38070]

I still do not see how an LSD and PSM would work together. I think I will post that to PCNA.

PSM limits are quite high. When it kicks in you will know. As I said earlier if you want to experience what it is like put your car on a skid pad.

The light does work. I have seen it lots of times. :D

[Loren]

...Scouser has a MY99 which does not have PSM - it has Traction Control. Not quite the same.