Unlock and TEST your BMW E46 3 Series OBC Hidden Functions DIY
Follow me as I check my Battery Voltage to see if I need a new battery or alternator.
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
# - 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 and LEDs to confirm function
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+?
10 - Not used
11 - Not used
12 - Not used
13 - 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
BMW DIAGNOSTIC CODES
A built-in BMW, self diagnostic code gives the benefit of troubleshooting a
failure car component, the method to retrieve the faulty codes after Check
Engine light turns on. This method helps car lovers to pin point the
problem and replace the defecting component quickly and cost effectively.
It works on models that have same instruments and LED's layout.
Below here is the code table to interpret the meaning:
98-2005 BMW E46 3-Series - How to reset oil inspection indicator. Reset service light
Step 1: Hold the knob
Step 2: Turn the key into position one while still holding the knob down
Step 3: Keep holding until it the work "Reset" pops up
Step 4: Let go of the knob and hold down on it again until the "Reset"
Step 5: When flashing let go and press the knob once more time and now your
inspection should set back to 25,000km
If fails please repeat the steps.
Hope this works for you!
Quickly Unlock and Reset the REGION Code of your BMW Business CD CD53 Radio
This video demonstrates how to reset, code the REGION and calibrate the
PLAYBACK features of your BMW Business CD Radio. The unit I'm resetting is
a Feb 2006 Alpine BMW Business CD53 Radio BMW Parts Number 65 12 6 961 215
that has MP3, HD Radio, Sirius Satellite Radio, and iPod Data/Auxillary
Capabilities. This unit was ordered online but came set for another
region. If your radio came like this unit did you will need to follow the
steps in this video to unlock, reset and code your radio to your region.
You can also see hidden information (like the production date and SV
number) on the radio as well as set your antenna sensitivity and play
around with your DSP settings.
This will work for all year BMW Business CD53 and CD radios found on the 3
series and X3 vehicles as well as other BMW vehicles.
There have been a number of posts on the Service Mode settings. Here is a
summary of what I have seen:
AREA - self explanatory (EUR,USA, JAP, etc)
AF - Alternate frequency feature which automatically finds and can switch
to a stronger station with same programming. (off, Auto, Autonopi, Man. Not
used in USA broadcasts)
SN - serial number
SV - firmware version and date in week-year format
RI - Supposedly revision index, but never seen specifics on it.
GAL - speed dependent volume sensitivity
AM or FM - Displays current frequency and Field strength for signal
DSP 0 V 15 - Identifies presence of DSP (0/1, 0 for E46) and current output
TP-V Volume offset for traffic alert programming (Not used in USA Area)
BMW 325i Ugly Hazy Headlight Restoration by Headlight Restoration Service Florida
This BMW 325i headlights restoration took a doing. These headlights had
passed the yellow stage gone through the hazy cloudy stage of oxidation.
They were among the worst headlights that we have ever restore. Never the
less we were able to give these headlights a new look after our headlight
restoration service. Fixmyheadlights.com have been restoring headlights in
south Florida in the Miami Dade, Broward county area for the past 3 years.
The headlights in this video were restored in Lauderhill Florida close to
Coral Springs Tamarac and Sunrise. Mr Parks was very happy and pleased with
our headlight restoration service. His headlights in a like new look
condition dramatically improved the appearance of his car and also
increased his SAFETY as well.
Programing a BMW Key
How to code a key for your BMW. This works for all I-Bus equipped vehicles.
If you're programming a second key you do the same procedure minus putting
the key in the ignition. So after you've done the first key simply hold the
unlock button and press the lock button three times WITHOUT putting it into
I've been away from this video for a while working on my website, and I
sincerely apologize for the unanswered questions. If anyone has any
questions please email me firstname.lastname@example.org and I will be sure to
BMW Key Initialization Procedure
This procedure will work for all keys that are not the square style key.
This is the full procedure on how to initialize your old or new keys or to
add a key to the vehicle. This would be for 3 series, 5 series, X3, X5, and
Replace BMW Fuel Filter
http://www.AutoWerksofAmerica.com - Replacing a BMW fuel filter is easily
done with a few simple tools and a little instruction. Some
recommendations: Do this job when the fuel tank is nearly empty and use
some kind of pan to catch the remaining fuel in the filter.
Consider replacing some of the rubber hose and rusty hose clamps when you
perform a BMW fuel filter change.
How To Recharge Your BMW 3 Series AC System BMW E46 1998 - 2006
Recharging The A/c System
CAUTION: The high side of the A/C system is under considerable pressure. If
a can of refrigerant is connected to the high side service fitting, it may
explode! The system must therefore be recharged by using the low side
service fitting only. If you are not sure which fittings are which, do not
attempt to recharge your air conditioner yourself. Wear eye protection and
avoid direct contact with the refrigerant as it can cause frostbite on bare
The basic recharging procedure goes as follows:
1. Identify the low side service fitting.
2. Determine the type of refrigerant required by the system. On most 1993
and older vehicles, this would be R12. On most 1994 and newer vehicles, it
would be R134a.
CAUTION: R12 and R134a refrigerants are incompatible and must not be
intermixed. Use the type of refrigerant required for your A/C system only.
On most 1993 and newer vehicles, there's an identification decal or sticker
that tells what kind of refrigerant is required. Also, the size and design
of R134a and R12 service fittings are different to avoid
3. Connect a can of refrigerant to a gauge set or recharging hose and valve
set. Follow the equipment supplier's directions for making the connections.
4. Open the valve momentarily on the gauge set or hose to blow all air out
of the line (this is necessary to keep from introducing air and moisture
into your A/C system).
5. Connect the gauge set or hose to the low side A/C service fitting on the
vehicle. This is usually located near the receiver/drier or accumulator, or
suction side of the compressor.
6. CAUTION: Make sure the can of refrigerant is held in the upright
position so only vapor enters the line. Do not tip the can sideways or
upside down as doing so will allow liquid to enter the low pressure side of
the A/C system (This may cause damage to the A/C compressor). Also, never
heat the can to make it empty faster as doing so may cause the can to
7. Start the engine and turn the A/C system on high. The compressor should
be engaged or cycling on and off (it may be necessary to jump the
compressor clutch directly to the battery if the system is extremely low on
refrigerant to keep it engaged). Compressor suction will pull refrigerant
vapor into the system and slowly empty the can. This can take up to 10
minutes or more, so don't be anxious.
8. When the can is empty, disconnect the charging hose from the service
fitting. Use care when disconnecting the "empty" can from the gauge set or
charging hose as it may contain some residual refrigerant.
9. Add additional cans of refrigerant as needed until the system is
CAUTION: The most common mistake made by do-it-yourselfers is overcharging.
Too much refrigerant can reduce cooling efficiency just the same as too
little refrigerant. To work properly, the A/C system needs just the right
amount. Always refer to the system capacity specs in a shop manual or other
source to determine how much refrigerant is required. System capacities are
specified in ounces. One can of refrigerant equals about 14 oz. Usually
three to four cans is enough to fully recharge a typical passenger car A/C
system that was empty. If the system is low, one or two cans of refrigerant
are usually all that's required.
BMW E46 - 318d - HowTo reset Oilservice Information - Ölservice Zähler zurücksetzen
This video shows you how to reset the counter that displays the information
about the oilservice. The Car is a BMW E46 Facelift 318d, it was built in
2002. In diesem Video wird beschrieben wie man den Zähler zurücksetzt,
der die Informationen über ein Service anzeigt. Es handelt sich hier um
einen BMW E46 Facelift, 318d Bj. 2002. Es hat auch bei einem Vor-Facelift