Kwam dit nog tegen, misschien heb je er wat aan?
To determine if your OBC is eligible .. press 1000 and 10 together.
you should see TEST NO . -- or something like that.
Now, some of the functions are locked out -- I do NOT recommend messing with them and you do so at your own risk -- that said ...
To unlock all functions .. press 1000 and 10 and at the TEST prompt enter 19 using the keys .. press SET/RES .. you should see LOCK:ON or something similar ... press the DATE key .. (today you'd see 08.20) and add the two numbers (day and month) together (today 28)
Now enter the number you just calculated (28) and press SET/RES. TADA .. you have unlocked the secret functions ...
To lock them back up .. press 1000 and 10 then enter 19, SET/RES now press SET/RES again .. it should show .. LOCK:ON again
In general when I show a test enter it by pressing 1000 and 10 together then enter the number of the test with the numeric keys and press SET/RES to actually execute the test ...
Test numbers for E36 OBC (Note: Joe this should also work for your 535!)
Test no. Description
1 Display Test .. all LCDs and LEDs activate
2 Current Consumption in l/100km
3 Current Consumption in l/hour
4 Average Consumption (used to calc. Range)
5 Current Range
6 Not used ..
7 Average Fuel in Tank (l)
8 Current Speed (km/h)
9 System Voltage at terminal R
10 Country/Language
11 Units/ AM.PM
12 Average Speed (km/h) for calc. ETA
13 ETA
14 Date of software/mask of OBC
15 Production Diagnosis (??)
16 Production Diagnosis (??)
17 Display Vehicle Specific Data
18 Alarm Changeover (continuous v. intermittent)
19 LOCK/UNLOCK all functions
20 Correction Factor for OBC Fuel Consumption (SEE BELOW!)
21 Reset all defect codes, date and time ... activate by pressing SET/RES
Note on test #20:
The factor is used to correct the OBC Avg Fuel Consumption figure to reality. If your OBC is off a bit: fill UP totally, run tank down and refill; then calculate your Actual MPG. Now enter test 20 to get the old Correction Factor.
NEW CF= OLD CF *(OBC MPG/Actual MPG)
Enter the NEW CF using the numeric keys and hit SET/RES to store. PLEASE record your OLD CF so that IF you screw up you can always go back to what it was.
Updates:
This is from a European 1990 M5 owner (9/3/96):
I have also found a deviation from the FAQ (which describes an E36 OBC) in the 'lock/unlock secret functions' of the E34 OBC:
To unlock:
• Press the DATE key, and add the day + month numbers
• Press 1000 and 10 simultaneoulsy, then use 10 and 1 keys to enter test 19
• Press S/R once. You will now see 0000LOCK or similar
• Use the 10 and 1 keys to enter the sum of day + month
• Press S/R -- secret functions are unlocked...
• Verify by entering test 19 again. Display should show FREE
To lock:
• Press 1000 and 10 simultaneoulsy, then use 10 and 1 keys to enter test 19
• Press S/R once. You will now see FREE or similar
• Press the little square button (F/C) to the left of display
• Verify by entering test 19 again. Display should be 0000LOCK.
The procedure to show the version number also differs from the FAQ. On the E34 OBC, you need to press the 100 and 1 buttons simultaneously, to display the type/version (Mine shows '5-00TYP').
Verstand is een mooi iets, zou willen dat iedereen het heeft!
