Bimmer Evolution, blee edition

[bren]

Pretty sure my next mod is going to be a catalytic converter.

I don't recall too much attention, but I do get some questions about debaging it.

[blee]

Originally Posted by bren

Pretty sure my next mod is going to be a catalytic converter.

I don't recall too much attention, but I do get some questions about debaging it.

I think I'm going to debadge mine as well, right after its first oil change (fingerscrossednocopperplease) and coolant temp sensor change.

Oh, yeah -- the coolant temp. We used the OBD diagnostic menu to monitor the coolant during my test drive, where we found the coolant temp dipping as low as 68 degrees C. Weaver Motorsports (selling dealer, big thumbs up) replaced it for me and I drove home. Now the temperature hovers steadily at 75, going as high as 78 or so before coming back down. Fan clutch seems fine, water pump is not wobbly (and must be working anyway). Infrared thermometer shows surface temperatures of about 85C at the hose inlet to the thermostat, as well as the engine block right next to the sensor. I'm going to change the sensor, which gives me an excuse to remove the intake manifold and clean/explore down there anyway.

[bren]

Originally Posted by blee

IOBD diagnostic menu

This sounds like something I should know about.

Does it show o2 sensor live data?

[blee]

Originally Posted by bren

This sounds like something I should know about.

Does it show o2 sensor live data?

Unfortunately no, I don't think. You'll need an OBD scan tool for that. If you search for "E46 secret menu" you'll find instructions for accessing the diagnostics. You may also want to watch a YouTube video, as the instructions are probably only clear to a German.

NB: While the instructions all say to hold the Trip Reset button while turning the key to "on," you can access the menu any time the key is in the "on" position by just holding down Trip Reset long enough. You can get there while the car is running.

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 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+?
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

https://www.youtube.com/watch?v=twM7NchxjXI