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**Haissam** · 31-01-2009, 09:03 PM

shak where were you when i had 2 BMWs!?!

**Shak** · 31-01-2009, 09:09 PM

In the UK Fixing the dam things!

**ahmad.alkhalil** · 01-02-2009, 09:07 AM

:rofl:

**deepocean2009** · 13-05-2009, 10:35 PM

BMW On Board Computer (OBC) secrets!

hey all

i already tried it :D its amazing

http://www.bmwe36blog.com/2007/03/31...r-obd-secrets/

**Bisho** · 13-05-2009, 11:01 PM

Thank you very much Rani.. it's precious..

**RAFiK** · 14-05-2009, 12:18 PM

Thread merged with this thread .. :)

**deepocean2009** · 14-05-2009, 01:34 PM

welcome all :)

**AsifSaif** · 04-10-2009, 09:10 PM

OBC Hidden Menu - Detailed

Instructions to access the hidden OBC functions:

1. Hold Trip Reset while turning ignition key to on position
2. OBC should show "Test"
3. Use Trip Reset to select function 19.0 that unlocks all the features
3. Wait for display to show "Off"
4. Depress Trip Reset for 1/4 second and release it
5. With no delay press Trip Reset several times to select one of the following function s

BMW E46 On-Board Computer (OBC) Hidden Codes

nr Example description

1 Car Engine and cluster data
1.0 46nnn Chassis nr/VIN serial number (last 5 digits)
1.1 4nnn K-number
1.2 690236 Cluster Part #
1.3 045210 Coding (04)/diagnosis (52)/bus index (10)
1.4 1200 Week (12)/year of manufacture (2000)
1.5 09_160 Hardware (09) and software # (16.0) of cluster
1.6 Not used
1.7 04__44 CAN-version (04) KI-revision index (44)

2 test) Cluster System Test - Activates the gauge drivers,indicators

3 SI Data
3.0 1098 Used fuel in liters since last SI (Service Inspection)
3.1 0231 Periodic inspection days; elapsed days (since last SI)

4 Momentary Consumption
4.0 0145+ Instant fuel consumption - 0145=14.5 liters/100km
4.1 0018 Instant fuel consumption - 0018=1.8 l/Hour

5 Distance Gone Consumption
5.0 082 Average mileage; 082=8.2 liters/100km
5.1 0536 Calc. km to refuel (momentary distance to go)

6 Fuel Level sensor inputs in liters
6.0 109330+ Fuel level averaged; Left half sensor input=10.9 liters; Right sensor input=33.0 liters
6.1 0439+ Total tank level averaged; vlgs 6.0: 10.9+33.0=43.9 liters
6.2 0442+ Indicated value (44.2) and tank phase

7 Temperature and Speed
7.0 021+ Coolant/Engine temperature (2.1C)
7.1 130 Ambient/Outside temperature - chg met 5 pts. 125/130/135
7.2 + Engine speed / Current RPMs 1/min
7.3 + Vehicle speed / Current Speed in km/hour

8 Input value in HEX form
8.0 1d0+ System voltage ADC-Value Hex code
8.1 26C33C+ ADC Values HG left/HG right
8.2 0000 ADC Value brake degradation sensor (000=o.k.)
8.3 18C ADC Value outside temperature

9 Battery
9.0 140 Battery Voltage - 140 = UB 14.0v
9.1 242013+?
9.2 074_78+?
9.3 0011+?

10 Not used

11 Not used

12 Not used

13 GonG Gong Test

14 Not used

15 Status cluster I/O-ports (bit codes) 0=low; 1=high

1st-belt contact, seat belt fastened=0; 2) ignition lock contact, key inserted=0; 3) door contact, door open=0; 4) clock button pressed=0; 5) SI reset=0, for reset=0; 6) EGS transmission failure=0
Status Digital Outputs (bits) 0=inactive, 1=active

1) Gong output; 2) Brake warning lamp; 3) Low fuel warning lamp; 4) EGA lamp; 5) seat belt lamp; 6) manipulation dot
16 Not used
17 Not used
18 Not used
19 Lock Status; unlocks functions in range 3-18
19.0 L-On/L-Off Unlock: press button when "L-Off"
20 Not used
21 Software Reset; reset OBC settings
00 End of test

Any E46 / E39 /E38 Member can validate the info. Thanks

**AsifSaif** · 04-10-2009, 09:18 PM

If Test 19 shows LOCK: ON you need to enter a number to unlock it to gain access to the hidden tests. The reset (LH button) increments the number from 0 to 45 then back to 0 and so on. the number you need to enter is the sum of the last 5-digits of the VIN number (e.g. VIN = BJ23412 add 2+3+4+1+2 = 12) then press the right hand button and volla the OBC is unlocked!

**eoudeh** · 04-10-2009, 11:13 PM

waaaw.....useful info. i ll try it :)

**alquazi** · 04-10-2009, 11:33 PM

Here are the instructions I used for my E39 M5;

UNLOCK PROCEDURE:

1) Key to ignition pos 2 (no need to start engine).
2) Fasten the seat belt to get rid of the "Fasten Seat Belt" message.
3) Press the right button on the instrument panel, and hold it until "TEST-NR. 01" comes up (5 to 10 seconds).
4) Press the left button on the instrument panel, and the vehicle id comes up (last 7 digits of VIN).
5) Add up the last 5 digits to get the "unlock code", e.g. the unlock code for "AB12345" would be 15 (1+2+3+4+5).
6) Repeatedly press the right button until "TEST-NR. 19" appears.
7) Press left button -> "LOCK : ON"
8) Repeatedly press left button until "LOCK : xx" appears, where "xx" is your unlock code.
9. Press the right button. All modes are unlocked now.

NAVIGATING BETWEEN TESTS AND PERFORMING THEM:

- Follow steps 1) to 3) of the "UNLOCK PROCEDURE" to enter test mode.
- Use the right button to step from test to test.
- Press the left button to enter a test and cycle between modes within a test.
- Press and hold the right button to exit test mode (turning the key to 0 works as well).

Here is what I know about the various test modes:

2) Instrument test: Cute light show in the instrument panel. Ever wanted to see the speedo show 190 without having to leave the garage?

3) Don't know.

4) Current fuel consumption in liters per 100 kilometers and in liters per hour.

5) Average fuel consumption in liters per 100 kilometers and range.

6) Current fuel levels in left tank, right tank, and total.

7) Engine temperature (not sure where measured), engine RPM, and outside temperature.

8) Current speed in kilometers per hour.

9) Battery voltage.

10) Country.

11) Don't know.

12) Not sure what these are. Could be average speed used to calculate arrival time for distance to destination set in OBC?

13) Sound test. Goes through the various gong sounds.

14) Don't know. Could be some diagnostic codes.

15) DOn't know. Looks like a real-time readout of some registers.

16) Oil temperature. I sometimes get a bogus -48 degrees C when the engine is not running. Corrects itself when the engine is on.

17) Don't know.

18) Doesn't do anything.

19) Locking & unlocking of the test modes.

20) Don't know.

21) Don't know. This test asks you "RESET?". Let me know what it does, if you're brave enough to try it. I'd recommend to stay clear, though.

Have fun.

**alquazi** · 04-10-2009, 11:39 PM

Test number 4 is the best way to test your MAF's

**AsifSaif** · 04-10-2009, 11:41 PM

Originally posted by alquazi View Post

Here are the instructions I used.

UNLOCK PROCEDURE:

1) Key to ignition pos 2 (no need to start engine).
2) Fasten the seat belt to get rid of the "Fasten Seat Belt" message.
3) Press the right button on the instrument panel, and hold it until "TEST-NR. 01" comes up (5 to 10 seconds).
4) Press the left button on the instrument panel, and the vehicle id comes up (last 7 digits of VIN).
5) Add up the last 5 digits to get the "unlock code", e.g. the unlock code for "AB12345" would be 15 (1+2+3+4+5).
6) Repeatedly press the right button until "TEST-NR. 19" appears.
7) Press left button -> "LOCK : ON"
8) Repeatedly press left button until "LOCK : xx" appears, where "xx" is your unlock code.
9. Press the right button. All modes are unlocked now.

NAVIGATING BETWEEN TESTS AND PERFORMING THEM:

- Follow steps 1) to 3) of the "UNLOCK PROCEDURE" to enter test mode.
- Use the right button to step from test to test.
- Press the left button to enter a test and cycle between modes within a test.
- Press and hold the right button to exit test mode (turning the key to 0 works as well).

Here is what I know about the various test modes:

2) Instrument test: Cute light show in the instrument panel. Ever wanted to see the speedo show 190 without having to leave the garage?

3) Don't know.

4) Current fuel consumption in liters per 100 kilometers and in liters per hour.

5) Average fuel consumption in liters per 100 kilometers and range.

6) Current fuel levels in left tank, right tank, and total.

7) Engine temperature (not sure where measured), engine RPM, and outside temperature.

8) Current speed in kilometers per hour.

9) Battery voltage.

10) Country.

11) Don't know.

12) Not sure what these are. Could be average speed used to calculate arrival time for distance to destination set in OBC?

13) Sound test. Goes through the various gong sounds.

14) Don't know. Could be some diagnostic codes.

15) DOn't know. Looks like a real-time readout of some registers.

16) Oil temperature. I sometimes get a bogus -48 degrees C when the engine is not running. Corrects itself when the engine is on.

17) Don't know.

18) Doesn't do anything.

19) Locking & unlocking of the test modes.

20) Don't know.

21) Don't know. This test asks you "RESET?". Let me know what it does, if you're brave enough to try it. I'd recommend to stay clear, though.

Have fun.

This will RESET language settings and other custom setting choosen by you, like TEMP in C / F, Time in 24/12 Hours format, Date Format, I tried it on E38, My OBC Language defaulted to German, it was fun to set it back to english.

**RAFiK** · 06-10-2009, 01:37 PM

Asif I dunno if you have searched the forum but we have another thread regarding this, a previous one..

http://www.bmwclubuae.com/forum/show...dden+functions

Does it differ from it by any chance ?

Announcement

Instructions to access the hidden OBC functions:

Instructions to access the hidden OBC functions:

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