Eddy

Hi,

You did not mention how many miles you have on the counter. My C4S needed around 1 liter from 0 - 5000 km, later from 5000 to 20000 km, i had to add another half a liter. From 20000 to 40000 ( which is on the counter now ) i added about half a liter. Seems that oil burning decreases after the engine starts to get some miles ...

Best regards,

Eddy

I have a question about this PSE as well.....

If I cut-out the by-pass, the PSE is always on at any speed, BUT..can the PSE still be turned ON and OFF?

tia

<{POST_SNAPBACK}>

Yes it can, the diode is the speedo signal only. So, after cutting this diode, you can switch the dashboard switch, on off . ( In fact, i switch my PSE OFF most of the times ... ) PSE is default ON , so switch off whenever you want.

Yes, the relay is inside the car. just have a look under the dashboard, you see a little "box" abgassklappen " Pull it out, en open it, you will see the little orange colored diode, going to a pin market " 1 "

Best, Eddy

Look here: http://www.renntech.org/forums/index.php?showtopic=2470&hl= Just cut the diode in the "abgassklappen relays". This will prevent the speedo signal reaching the electronics of the PSE only. All other circuits needing the speedo signal ( including PCM ) remain intact, no side effects.

Greets, Eddy

TD,

Since we only use an "input" signal, you don't have to worry, there is no output on the relay. (towards the speedo signal) The relay on your car will be differenct, the circuit also. ( ending 01 , 02 and today 03) . As long as you cut out the diode going to pin 1 of the relay, your fine.

If you want to "undo" the mod, just walk in a radio shack shop, ask for 1N4148 diodes ( probably 10 ct/pcs or less) and solder the diode in place.

Best, Eddy

TD,

This "hack" has no side effects at all. I have PCMII, no problem, tested, the door also locks when you drive away. Since you only take away the speedometer information to the PSE and nothing else, all the other circuits that need the speedometer info are being kept intact...

And also took a picture of the location of the relay, it is at the top left, you can see "abgasklappen" printed on the relay

Hi Steve,

My car has a factory installed PSE option, and also the dual stainless steel exhaust tips. These are two different options. If your car has PSE factory installed, you will see a switch on the dash board, with the figure of an exhaust tip. On a factory installed PSE, the exhaust is standard open, but closes at 40 km/h and opens again at 70 km/h. The above modification deletes this cutout. Standard open, if you switch the exhaust goes quiet. This is a picture of the part that i cut out of the relay. ( pictures is not very good )

Good luck with your new C4S !

I got my windshield replaced @ 2000 km. First quotes where 750 Euro, after some phone calls, i got somebody doing the job for 420 Euro installed. The windshield is exact the same ( same manufacturer, same part numbers , PCM antennas inside ) as the orriginal.

My right window does not come up with a "one tough", down is OK . I asked the dealer, he told me this is normal, it is a safety regulation ... ??? . ;) I tried to hold the window up for 10 sec, no result. Has anybody have the same experience ?

C4S MY04

Best, Eddy

Ollie,

Interesting, did you go back to installing the jumper ? The Nav is very accurate, i just returned from Zurich, when i hit the road at 6PM the nav told me ETA 00:55 . I arrived at 00:00 , ( 750 km ) but could do + 200 km/h on german highways... the nav recalculates each time, and estimated at the end 00:10 . Quite accurate on a 6 hour drive ... . I sure do not want to loose this "feature" .

Loren,

I have a problem in locating the Check Valve. In my 04 4S the vacuum reservoir is mounted much more to the front of the car. The vacuum lines to the mufflers run to the back, where they are split to the left and right muffler. One vacuum line which i guess have to go to the check valve, runs behind the engine ( towards the front of the car ) Question, where does each side of the check valve go ?

Best, Eddy

My C4S has got standard memory seats. I activated the window tilt down by memorizing the seat position in the car with the (tiptronic) gear in reverse. It works, right mirror tilts down while i have the car in reverse.

The dealer where i bought my car, told me to come in when i have 3000 km for a free check-up. I went there this afternoon to make an appointment. If you have a question for them, just let me know and i will ask ...

I will be at the dealer on monday.

Will,

I had the same problem on one of my previous cars. The problem was a microswitch that senses "window down". The complete process was aborted because the system was thinking the windows where not down ...

Eddy

Thanks Loren, yes it is a factory installed PSE. I probably also have to do the "cutout" modification, if not, the valves will open between 40 - 70 km/h.

Hi,

The PSE Electronics is set up for default 'open', meaning when starting the car, the exhaust is loud. I would like to change it to default 'close', so i have to switch PSE on. Has anybody done this already ? Or, has somebody got the electrical schematic for the PSE ?

Thanks,

Eddy

Is the PCM also developed by Becker ?

These days you find palmtop devices where you can load POI( points of interest ) These POI's are also fixed speed camera's. Certain POI data suppliers ( like t ;) omtom and POI ) update their data regulary, so your palmtop will notify you for the fixed speed camera's.

Has anybody any experience where you can load ( waypoints ) POI's in the PCM ?

Best regards,

Eddy