[Nemis]

Originally Posted by mishenka

Sorry you did not answer all the question that would help me understand better how it happens, but based on you last post I make an assumption that you:
First – enabled the hidden menus
Second – you are in the mode where hidden menu is showing on you dashboard
Third – turn the car off WHILE hidden menu is being active
Four – return back to you car, turn it on and being asked for the code

If this is the correct sequence of events that it seems normal under these circumstance. Apparently this hidden menu thing WILL NOT go away when you turn off the car.

3) turn off while hidden menu is active (menu 8.00)
4) turn it on and it isn't on hidden menu, but show mileage.
so i press and hold trip reset button for about 15, enter in menu 19 and i must re-enter code.

in my e90 hidden menu go away when i turn off the car.
is this correct? or you car have ever hidden menu enable?

sorry but i have some problem to read/write english

[mishenka]

Nemis,
Ok, Now I understand. Everything is correct and is how it is supposed to be.

Yes, if you turn off the car while hidden is active, and then turn car back on – the hidden menu WILL NOT be active again. And yes, you have to go again to menu 19 and re-enter code AGAIN.

In other words – the car does not memorize the code once you entered it. It will ask the code every time you try to go there. This is apparently how they programmed the computer. At least this is my understanding of it.

Don’t worry about you English. It is not my first language either

mike

[Nemis]

ok, thank's

[Rob Fincher]

hi there - I drove my new 325 to Ballarat last weekend, past the overhead radar speed sensors. With speedometer indicated speed steady on 110 km/h under cruise control, radar speed displayed was 102 km/h. On the return journey, speedo indicated 115 km/h, radar speed displayed was107 km/h. There has been much talk about the accuracy of the radar, but at least in my case the 8 km/h difference was consistent. If you want to get another fix on your speed, the nav system has a stopwatch function which could be used to time the car over a known distance. Or try a hand-held GPS unit in "speed" mode. Also makes you wonder if the nav system's speed measurement is the "actual" speed shown on the car's read-out.
Rob

[Jongi]

Does anyone else have the ABS sign after about 5 seconds of pressing the odometer button?

[tctic]

Originally Posted by Jongi

Does anyone else have the ABS sign after about 5 seconds of pressing the odometer button?

Yes. It's normal.

[BMW F22]

is this HIDDEN MENU only available with NAV???

[Jongi]

BMWE90: I doubt it.

[tctic]

No.. even the E46 has the hidden menu. Just press the milage counter reset button for 15 sec or so and it will pop up.

[PitJ]

Mishenka, you have asked for a translation. I'll do my best to add to the list from p. 1:

01.00 FGSTNR = "Fahrgestellnummer" (Chassisnumber) = VIN
01.01 K-ZAHL W/T = specification to dash/instrument
01.02 BMWTNR BMW = part no. of dash/instrument
01.03 COD DIA = index for code and diagnosis
01.04 KI HSTL DATUM = "Herstellungs Datum" (dash/instrument manufactured/assembled on date...)
01.05 ???= Hardware hex no., probably version
01.06 SW = same for software
01.07 KODIERDATEN = data of instrument coding
01.08 CAN (no idea)
02.00 KI TEST = Dashbord test. All light, gauges, displays and so on will light up,
move.... works only when the engine is NOT running.
03.00 ??? (maybe it will show something after your first 'service', motoroil change) unused as yet
04.00 MOM VBR = actual fuel consumption
04.01 RW-VBR-MOM = fuel conspt per hour
04.02 = avrg fuel conspt since last reset
04.03 = distance used for calculation of avrg conspt
04.04 = avrg fuel conspt present trip
04.05 = seems pretty close to 04.03 but different start point, probably 03 = since last reset, 05 = present trip
05.00 = average fuel conspt used for calculation of mileage left
05.01 = present mileage left
06.00 how much you have in your 'tank' in liters. Left- and Right compartment and Total
06.01 dito in hex? no, overall fuel left in tanks as shown on dash
06.02 = seems to be electrical resistance of fuel level meters in Ohm
07.00 KTMP-MOM = Temp. Cooling Fluid (celcius)
07.01 ATMP-MOM = "Aussentemperatur" Temp. Outside (celcius)
07.02 dito in hex? could be
07.03 N-MOT-MOM = RPM
07.04 N-VWF-MOM = max. RPM at the moment. E60 it gives a value. E90 it shows "-----"
08.00 V-EFF = exact speed
08.01 V-ANZ = "Anzeige" speed shown on dash..
08.02 V-SZ photo says "invalid" (?)
08.03 D-GESCHW 1 WEG = avrg speed since last reset
08.04 D-GESCHW 1 ZEIT = time used for calculation of 08.04
08.05 D-GESCHW 2 WEG = avrg speed present trip
08.06 D-GESCHW 1 ZEIT = time used for calculation of 08.05
09.00 Voltage
10.00 KM/WOCHE = distance/week, dunno how that helps
11.00 has to do how the time will be displayed (= 12/24 hr display)
11.01 km or miles
11.02 Celcius or Fahrenheit
11.03 how to display fuel consumption. km/l or l/100km or mpg
12.00 V-ANKUNFT = speed at arrival time 12.01 ANK-ZEIT = time of arrival
13.00 AUDIO = test all warning sounds
14.00 FS EINTRAEGE = error messages (if any)
15.00 Oil temp?? in hex
16.00 Dashbord lighting.
17.00 Temp inside in the car??
18.00 CC-TEST = you can see some of the 'check control' messages.
19.00 UNLOCK
20.YY to 23.YY ??? 20 = correction factor for fuel conspt.
21 = reset dash. Keep fingers off.
22 and 23 not used.



Hope that helps! I'm not an engineer, so...

Peter

[tctic]

Nice..

[sdorn]

Originally Posted by Rob Fincher

hi there - I drove my new 325 to Ballarat last weekend, past the overhead radar speed sensors. With speedometer indicated speed steady on 110 km/h under cruise control, radar speed displayed was 102 km/h. On the return journey, speedo indicated 115 km/h, radar speed displayed was107 km/h. There has been much talk about the accuracy of the radar, but at least in my case the 8 km/h difference was consistent. If you want to get another fix on your speed, the nav system has a stopwatch function which could be used to time the car over a known distance. Or try a hand-held GPS unit in "speed" mode. Also makes you wonder if the nav system's speed measurement is the "actual" speed shown on the car's read-out.
Rob

I have checked my speedometer with a handheld GPS unit in the car. With the cruise control set on 55mph, the GPS read 52mph. With the cruise set at 80mph, the GPS read 75mph. I am going to complain about this in a couple days when I take the car in for some other work. A $40k car should not have an inaccurate speedometer.

[visor]

Originally Posted by sdorn

I have checked my speedometer with a handheld GPS unit in the car. With the cruise control set on 55mph, the GPS read 52mph. With the cruise set at 80mph, the GPS read 75mph. I am going to complain about this in a couple days when I take the car in for some other work. A $40k car should not have an inaccurate speedometer.

The BMW speedometer issue has been discussed before.
It is accurate, but not precise.

Essentially, it boils down to BMW erring on the cautious side by running it 5-8% faster than actual speed because of European regulations stating that speedometers can never read less than actual speed. Plus over here in America, can you imagine the litigations if someone was pulled over by the cops going 80mph when he thought he was going 75mph according to the speedo?

[sdorn]

Originally Posted by visor

The BMW speedometer issue has been discussed before.
It is accurate, but not precise.

Essentially, it boils down to BMW erring on the cautious side by running it 5-8% faster than actual speed because of European regulations stating that speedometers can never read less than actual speed. Plus over here in America, can you imagine the litigations if someone was pulled over by the cops going 80mph when he thought he was going 75mph according to the speedo?

Has anyone been successful getting the problem corrected? It is completely unacceptable to me for my speedometer to be that far off. It's just one of those things I can't stand, like a clock ticking too loud or a blinking light.

[tctic]

How does it compare with the actual speed shown in the hidden OBC menu? For me, the actual and shown speed difference exists. But it's not that much of a difference. 3-5km/h when going at the range of 50-100km/h. So definately not 5mph difference.

[sdorn]

Originally Posted by tctic

How does it compare with the actual speed shown in the hidden OBC menu? For me, the actual and shown speed difference exists. But it's not that much of a difference. 3-5km/h when going at the range of 50-100km/h. So definately not 5mph difference.

I don't know. I just found out about the hidden menu tonight. I will try it and see what the difference is.

[JamieA]

Without using a GPS system (and even these aren't accurate if they can't get a fix on enough satellites) you will never get an accurate speed indication on your dashboard. This is because as the tyres wear down they will change their rolling circumference, and this will also change with varying tyre pressures. The result - inaccurate speed indication.

All manufacturers set their speed conservatively so that drivers avoid speeding fines, and so that they also effectively drive slower which has been shown to reduce the severity of a collision outcome.

In some jurisdictions in Australia you will be booked for going 1 km/h over the speed limit, in others 3 km/h and others 10km/h. When I am driving in the less tolerant states, I am happy that my speedo is optimistic.

Anyway, as you will find and as I have stated, all manufacturers do this, getting an accurate speedo means that all the other traffic will suddenly appear to be driving slower (they will be sticking to the speed limits as indicated on their speedos). I don't know about you, but I would find this more frustrating, than the knowledge that my speedo was optimistic.

[JamieA]

Originally Posted by Rob Fincher

hi there - I drove my new 325 to Ballarat last weekend, past the overhead radar speed sensors. With speedometer indicated speed steady on 110 km/h under cruise control, radar speed displayed was 102 km/h. On the return journey, speedo indicated 115 km/h, radar speed displayed was107 km/h. There has been much talk about the accuracy of the radar, but at least in my case the 8 km/h difference was consistent. If you want to get another fix on your speed, the nav system has a stopwatch function which could be used to time the car over a known distance. Or try a hand-held GPS unit in "speed" mode. Also makes you wonder if the nav system's speed measurement is the "actual" speed shown on the car's read-out.
Rob

Thanks, I was wondering what the "fudge factor" was

[gdnyc]

The digital speed is interesting. Definitely want to have this thread available when I finally get my E90

[sdorn]

Ok, I unlocked the menu and compared the speed on it to my GPS. It was in km/h rather than mph, so I had to change the readings on my GPS to km/h as well. Anyway, I took measurements on the interstate with the cruise control set, and the digital speed on the dash was consistently 1 - 2 km/h faster than the GPS reading. So, for example, when the digital speedo said 124 km/h, the GPS read 122 or 123 km/h. While the digital readout was still a little optimistic, it is much closer to actual speed than the speedometer was showing. Now, if I can just figure out how to make the digital speedo show my speed in mph rather than km/h.

Also, is there any way to adjust how far off the displayed speed is vs. actual speed?

Originally Posted by JamieA

Without using a GPS system you will never get an accurate speed indication on your dashboard. This is because as the tyres wear down they will change their rolling circumference, and this will also change with varying tyre pressures. The result - inaccurate speed indication.

This is not completely true. While changes in tire wear would cause some effect to the accuracy of the speedometer, the effect would be so miniscule as to be virtually undetectible.

Originally Posted by JamieA

All manufacturers set their speed conservatively so that drivers avoid speeding fines, and so that they also effectively drive slower which has been shown to reduce the severity of a collision outcome.

Anyway, as you will find and as I have stated, all manufacturers do this, getting an accurate speedo means that all the other traffic will suddenly appear to be driving slower (they will be sticking to the speed limits as indicated on their speedos). I don't know about you, but I would find this more frustrating, than the knowledge that my speedo was optimistic.

Some manufacturers do provide accurate speedometers. My 2001 Ford Mustang speedometer matches the GPS readings perfectly at all speeds up to normal interstate speeds. I haven't checked it over 100mph, but that isn't really important for normal driving. My BMW is the first car I have ever owned with a speedometer this far off. I immediately noticed that all the traffic seemed to be going way faster than normal based on my speed. That is what first caused me to check my speedometer's accuracy.

Here in the the state of Georgia, speeding tickets are generally not given out for speeds lower than 14mph over the limit. There are some exceptions, but if you have an extremely accurate speedometer you can generally travel 13mph over the limit without getting a ticket, especially on highways. If you can't trust your speedometer, you are screwed.

[325 Baller]

Can someone make a step by step instruction on how to unlock number 08 or the speed? I really want that so I can know my exact speed on the digital screen.
Thanks.

[sdorn]

This was the explanation I used to do just what you are asking. It specifically explains how to unlock Menu 8. You have to do it every time you start the car, though. Plus, on my car, it was in km/h which was pretty much useless to me.

Originally Posted by tctic

Clarification:
1. Press and hold on to the "mileage counter reset button" for about 10-15 seconds and hold. But your car must be in the "on" position however, engine need not be running.
The center LCD would show:

01.00
FTSNGR
(The last 7 characters of your VIN number)

2. Now, release the button and then every time you press the button, it will reveal different sub sections in the 01 section as shown by 01.xx.

3. To see other menus, 03.xx-18.xx sucessfully, you need to unlock it using menu 19. To go to menu 19 from menu 1, press the 'mileage reset' button again and hold for about 2 seconds.

4. Now, the menu would show 01.__. It's time to, without delay, keep pressing the 'mileage reset' button until you see menu 19. Now stop at menu 19.

5. After you release the button and stop pressing the button at menu 19, it will show 19.__ momentarily. Wait for about 1 second until it shows:

19.00
LOCK ON
Code: 01

Now, without delay, press the button again and again until you reached the right code for your car. Pause after you reached the right code. Now, all the menus are unlocked. Your code can be 'calculated' from the last five digit of your VIN number for your convienence. If the last five digit of you VIN number is: 28393 for example, your code would be 2+8+3+9+3, which is 25. After you reached the right code of your car, pause until the display shows some changes.

6. To go to other menus after unlocking, press the button again for 2 seconds (until, 19.__ appears on screen again, iirc). Then stop at the menu which you want to access. For example, stop at 8.__ if you want to have a display of your instantaneous speed when you are driving. The 8.__ display will disappear quickly after you stop pressing the button. It will now appear as 8.00 which indicates that you have entered 'Menu 8'. To access sub menus, you press the button once to go from one sub menu to another. If you want to get out of "Menu 8", press and hold the button for 2 seconds and now, 8.__ will appear. Without delay, release the button and press the button until you reach the menu that you want to see.