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E46 tips and tricks...

455K views 117 replies 100 participants last post by  Ljkruger 
#1 ·
Tips and tricks for your E46...

Hope you guys find it helpful


1. When the temperature drops below 37 F degrees, the car beeps to let you know to watch out for icy roads. Also, the rear defroster comes on.
2. You can read the odometer with the car off; all you have to do is press the needle on the left.
3. When car is off, hit the volume knob on the radio the radio turns on (it only works with 02 decks)
4. There is a "secret" compartment underneath my car's armrest and a Coin box in center console.
5. There is a trunk release right above the hood release (not on all cars)
6. There is an exterior trunk release above the license plate and under the ledge.
7. There is flashlight in the glove box.
8. There are amber lights that shine on the center console.
9. You can change radio station on the steering wheel by holding up/down button longer to scan to next station rather than preset ones.
Interior lights can be turn off when you open/close door or shut the engine down.
10. The two knobs on the center control panel are to reset the short trip mileage and the other one is for changing the time on the clock and changing the time from army time (24 hour time) to normal time. And you could also switch the temperature display both on the dash and on the climate control between Fahrenheit and Celsius.
11. You may be able to auto-roll down of windows from the remote control. Another way is to put the key in the door handle and turn to the unlock position and hold it there. This will also open and close the moon roof or put a convertible top down.
12. If you push the unlock button on the remote once it will unlock the driver door, for ‘02s if you push the unlock button on the remote twice it will unlock all the doors…then once all that is done.... push and hold the unlock button on the remote the windows will start to roll down... then the sunroof will open too.
13. If you hit the 'counter reset button' with the ignition in position 2 (or very quickly when you start your car), then it will show you when you are due to change your brake fluid!
14. There is also a first aid kit under the passengers seat.
15. There is a compartment by your leg when you are in the drivers seat. The compartment is on your left if in a LHD, and on your right if in RHD (located next to your knee).
16. The safety strip along each window and sunroof that detects obstructions and retracts them. (Along with a timer that prevents the motors from burning out if in use too long).
17. The OEM side mirrors are designed with slats and ridges to reduce wind noise.
18. The airbag system is 2 stage deployable depending on if the seat belts are latched. If there is no passenger, that front airbag wont even go off to save repair costs. (Along with the explosive seatbelt tensioners).
19. The radio, sunroof, and other "ignition" triggered accessories are available for a period of time after the car is turned off until a door is opened.
20. The fact that the car goes into "sleep" mode after 16 minutes of inactivity to reduce battery drain and eliminate dead batteries from "left on" accessories (lights, etc).
21. The suspension is designed to limit body dive under hard braking, instead the entire chassis dives evenly for stability.
22. The A/C compressor has a variable displacement thrust plate to eliminate the shock load of compressor cycling and use varies depending on need and load.
23. Flashing the high beams after ignition is turned off will leave the headlamps on for a preset amount of time for security while parking the vehicle.
24. The Keyless Entry system utilizes antennae in the rear window, change key codes every time, will deactivate keys if a key is pressed too many times without response from the car, the key recharges while in the ignition switch, and they store all sorts of presets, from seat positions to IHKA control settings.
25. The radio remembers the settings separate for each input. (E.g., CD input can have the bass/treble/balance/fade settings different from the F.M. radio)
26. Left Side Mirror will tilt in reverse (check to make sure your mirror selection switch is in center or left position to use this feature)
Door locks that engage when you go 8 Miles per hour (Dealer need to turn this feature on).

27. As some of you may know, the BMW On-Board Computer (OBC) holds more functions than is documented, including a very nice instrument panel test. I managed to get a lot of this information from the web, but it was far from complete. Subsequently I asked my dealer for the missing info, but they could not provide the complete list either. Following is a list for the items I could find, they work in my car (E46 323i). I gather most of them also work in the E36 models. Who can tell what the missing entries represent (especially functions
9.1, 9.2 and 9.3 which are very mysterious)?

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

28. Put your turn signal either on the left or right position, with no key in the ignition, close the door and walk away. What you will see is the front blinker, and rear turn signal stay lit. From what I read, it's supposed to be a feature to for people to see your car when it's parked at night in those really tight streets in Europe. This way no one accidentally drives into your car.
29. If you look on your roof, there will be two flaps on each side that are plastic and body colors. You can remove them and there is a little hole in each one that accepts the BMW Roof Rack.
30. Hold down the PTY button (this works, to my knowledge, on cars w/nav) and you will turn on AUTOPTY--it'll display the type of music station if the data is present. I think this works for RDS too.... that way, you don't have to keep pressing it when you switch to radio or change stations etc.
31. Change the Speed Sensitive Volume Ratio - E46 Business CD Head Unit:
Turn the radio off then on again. Don’t touch any button except the 'm' button - the button you use to tune the radio frequency manually. Press and hold the 'm' button for TEN seconds or until the display changes. It will then show the serial number of the unit. Normally when you press 'm', the display will reflect that by replacing 'ST' (stereo tuning) with 'm'. When holding the 'm' button for this procedure, the display should not do this - you will continue to see 'ST' for the ten seconds. Now if the display has changed, you are in a configure mode on the radio. If you press the '>' or '<' button you change modes. The mode you want will display as "GAL (1-6)". This mode allows you to adjust the speed-sensitive volume control. Use the radio preset buttons 1-6 to set the amount of volume change you want at speed. Setting 1 is the smallest change, 6 is the highest. I use 1 with the windows closed, and 5 when it's a nice enough day to drive with the windows open, which makes for a lot of ambient noise at speed. The car is so quiet with the windows closed that setting 1 is fine. Then turn the radio OFF to save the settings. Turn it back on; go for a drive to test it. The other semi-useful test mode will tell you the signal strength of any given station from 0 to 15 (highest). Use the preset buttons to change stations in the mode. This capability is probably used in the automatic tuning function in the radio.
32. The multiple 'auto heater/AC combinations at start-up' memory options are nifty.
33. If you want to leave your windows down but have the alarm set, but not have to worry about the motion detector go off, you can arm you alarm by hitting the lock button, and then wait a second and hit the button again. You'll see the clown nose light up for a second, which means the motion detector is deactivated
34. If you flicker your high beams when the car is off, your xenons go on for 30 seconds to give u a lighted path to walk
35. If you have auto wipers, the headlights go on when the wipers activate, if on auto.
36. Where the spare tire is, next to the portable jack there is a wheel chock!!
37. In Euro delivery cars, there is a warning triangle in a blue plastic case that bolts to the left rear of the trunk and a first aid kit under the passenger seat.
38. Apparently "there's a cheat code in the software running the BMW M3's sequential manual gearbox (SMG). Press the right buttons in the right order and the car will launch you from a stop after revving the engine to 5,000 rpm". "But there is a catch. In Europe, where the feature isn't so hush-hush, doing more than 15 launches voids the car's warranty. Federal laws prohibit such stipulations here, so BMW has turned down the which. US-spec cars are programmed to wind to only 2,500 rpm. That's why you have to ask your dealer to install the European software. Most will happily oblige"

"For lucky drivers of this hot car, here's how: Switch of the stability system and select shift program six. Switch the engine to sport mode. With the hand shifter in drive, hold it in the downshift position and press the has pedal. The engine will rev to the preprogrammed rpm and hold. Now release the shifter. The car will launch forward violently and the engine's revs will climb quickly, so be prepared to up shift"
39. When you have your wipers on fast and medium (don’t know what you call it) Anyways if you come to a stop it'll go to intermittent
40. Want to know your odometer reading but no key... no problem. Just press the computer toggle button at the end of the turn signal lever. The computer read-out lights up with the odometer reading.
41. Everyone knows that the screwdriver in the tool kit is reversible.
42. When windshield wipers are going, and the a/c is on, regardless of the temp, warm air is coming out of the windshield defrost vent.
43. Holding down the DSC button to completely turn it off.


ALL TIPS courtesy of Ownster.com and E46fanatics

 
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#52 ·
Hi Guys...I have a 2002 325Ci. Does anyone know what the R/T button does on the steering wheel. The car's manual says that the button will change the mode from phone/radio/cd player. But the dealer says that it will work only when we have the integrated phone system. Since I dont have one, he says that I wont be able to change mode from radio to CD player using that. Is that true or is he trying to make an ass out of me?

Thanks
SJ
 
#53 ·
One of the cool things I discovered is that you can flip the carpet that is on the floor of your trunk over and it goes from carpet to a rubbery texture. It holds things in place better in the trunk (like grocery bags) while you're driving around and can be wiped down when dirty. :rock
 
#54 ·
As usual, these people fail to mention the bmw police lights, STANDARD on ALL BMW's!!!!!! This is very naughty, i wouldnt do it on the road. just in your drive!!! (spook the neighbors out)!!!!

For some reason, people dont get the hang of this quickly, but a bit of practice will get you thinking you are the traffic cop in the area!!!!

Try this.

(this is different in a LHD car, just alternate)

put your right hand on the headlight switch, and switch them to sidelights.

put your left hand on the high beam flas stick (left stick on my car)

ok, this is the basic principal. . . . . . .

with you right hand, turn the headlights on, then off after a flash, as you turn them off, pull the high beam flash (on the indicator stick,) when you let that go, switch the headlights on again, then so on, so forth.

This takes practise!! but when you have mastered it, the headlights (outside lights) and main beam (insides) will flash independantly just like on a police car, it looks good. (plus it might not be good for the bulbs, but cars with xenon bulbs will add that blue tinge to the matter, for more effect!!!!!)

Remember, I only recommend this off a public highway, in a garage or something. NOT FOR USE ON ROADS, IS HIGHLY ILLEGAL AND IRRESPONSABLE.
 
#55 ·
Originally posted by zibby@Dec 12 2004, 12:36 AM
what do you mean by saying "amber light shining in center console"
[snapback]248366[/snapback]​
Amber light shining, look up to the ceiling, where the interior light is, you will see two holes that do nothing. Turn on the car's lights and they will turn on, when you have done this, put your hand under the holes, and move your hand down, you will notice that these lights are beaming orange light down to the center console. it does it in my e46, dont know about others!! :naughty
 
#57 ·
Don't do this on a car with HID. You can easily burn out your lamps by turning them on/off rapidly.

Originally posted by lindendavies@Jan 13 2005, 07:31 AM
As usual, these people fail to mention the bmw police lights, STANDARD on ALL BMW's!!!!!! This is very naughty, i wouldnt do it on the road. just in your drive!!! (spook the neighbors out)!!!!

For some reason, people dont get the hang of this quickly, but a bit of practice will get you thinking you are the traffic cop in the area!!!!

Try this.

(this is different in a LHD car, just alternate)

put your right hand on the headlight switch, and switch them to sidelights.

put your left hand on the high beam flas stick (left stick on my car)

ok, this is the basic principal. . . . . . .

with you right hand, turn the headlights on, then off after a flash, as you turn them off, pull the high beam flash (on the indicator stick,) when you let that go, switch the headlights on again, then so on, so forth.

This takes practise!! but when you have mastered it, the headlights (outside lights) and main beam (insides) will flash independantly just like on a police car, it looks good. (plus it might not be good for the bulbs, but cars with xenon bulbs will add that blue tinge to the matter, for more effect!!!!!)

Remember, I only recommend this off a public highway, in a garage or something. NOT FOR USE ON ROADS, IS HIGHLY ILLEGAL AND IRRESPONSABLE.
[snapback]270640[/snapback]​
 
#59 ·
This is great info! Here's one I didn't think I saw... on the 2005 models, the CD player recognizes and plays MP3 CD's (ie: 120 songs on 1 700mb disc). There is no mention of this in any of the literature or the info that came with the car. I just knew that it worked in an '05 Mini Cooper, and the head-units are the same behind the face-plate. Try it... it works in my car!
 
#60 ·
Originally posted by BimmerJD@Feb 18 2005, 10:10 PM
This is great info! Here's one I didn't think I saw... on the 2005 models, the CD player recognizes and plays MP3 CD's (ie: 120 songs on 1 700mb disc). There is no mention of this in any of the literature or the info that came with the car. I just knew that it worked in an '05 Mini Cooper, and the head-units are the same behind the face-plate. Try it... it works in my car!
[snapback]294612[/snapback]​
FYI: Page 22 of the "Owner's Manual for the Radio" (I have the standard "Business CD") -- "The CD player can also play CDs containing compressed audo data in formats such as MP3 or WMA..." If you've got the same sound system and you didn't get a manual for it you might want to ask your dealer for one. It has a few 'hidden' features that aren't obvious just by playing around with it.

By the way, anyone know if it supports any other formats? The manual seems kind of vague about this.

Of note:
The in dash player only seems to recognize a limited number of files on a disc. I've been squeezing about 30 albums (each in its own folder) onto a disc, but the the player only plays about the first 20 or so (~260 songs) then starts over from the start. I'm assuming its a limitation of the decks internal memory.

Anyone have anything specific on this?

Thanks.
 
#61 ·
Originally posted by battleship_potemkin+Feb 19 2005, 03:10 PM--><div class='quotetop'>QUOTE(battleship_potemkin @ Feb 19 2005, 03:10 PM)</div><div class='quotemain'><!--QuoteBegin-BimmerJD@Feb 18 2005, 10:10 PM
This is great info!  Here's one I didn't think I saw... on the 2005 models, the CD player recognizes and plays MP3 CD's (ie: 120 songs on 1 700mb disc).  There is no mention of this in any of the literature or the info that came with the car. I just knew that it worked in an '05 Mini Cooper, and the head-units are the same behind the face-plate.  Try it... it works in my car!
[snapback]294612[/snapback]​
FYI: Page 22 of the "Owner's Manual for the Radio" (I have the standard "Business CD") -- "The CD player can also play CDs containing compressed audo data in formats such as MP3 or WMA..." If you've got the same sound system and you didn't get a manual for it you might want to ask your dealer for one. It has a few 'hidden' features that aren't obvious just by playing around with it.

By the way, anyone know if it supports any other formats? The manual seems kind of vague about this.

Of note:
The in dash player only seems to recognize a limited number of files on a disc. I've been squeezing about 30 albums (each in its own folder) onto a disc, but the the player only plays about the first 20 or so (~260 songs) then starts over from the start. I'm assuming its a limitation of the decks internal memory.

Anyone have anything specific on this?

Thanks.
[snapback]294897[/snapback]​
[/b][/quote]


Thats exactly right. It is because the deck runs out of memory. Thats why the amount of tracks/cds per disk varies with the leangth of the songs contained therein.....
 
#62 ·
Man, I love this site!...lol I've only had my 325ci for a week so a lot of these things have me here going, "D/mn! It does that?!?" :driving THANKS!

:cheers
 
#64 ·
OMIGOD!!!!!! I've had my 2000 323i for FIVE YEARS!!! Had no idea it did most of this stuff.... :guns mad at my dealer/salesperson! I feel as though I've been enjoying my car in much the same way as one who only uses the microwave to warm up their coffee!!!!! What a waste! Thanks for all the GREAT info. :thumbs

Soooo, do you know what to do about a sporadic fuel gauge? Shows different "miles remaining" before refueling. Number will change as much as 20 miles, up & down within as few as 8-10 miles of driving at 25-30 mph, around small town.



THANKS
 
#65 ·
Maximum #of MP3s explained

battleship_potemkin said:
FYI: Page 22 of the "Owner's Manual for the Radio" (I have the standard "Business CD") -- "The CD player can also play CDs containing compressed audo data in formats such as MP3 or WMA..." If you've got the same sound system and you didn't get a manual for it you might want to ask your dealer for one. It has a few 'hidden' features that aren't obvious just by playing around with it.

By the way, anyone know if it supports any other formats? The manual seems kind of vague about this.

Of note:
The in dash player only seems to recognize a limited number of files on a disc. I've been squeezing about 30 albums (each in its own folder) onto a disc, but the the player only plays about the first 20 or so (~260 songs) then starts over from the start. I'm assuming its a limitation of the decks internal memory.

Anyone have anything specific on this?

Thanks.

Standard computer representation of numbers is in Base 2. Numerical limits are thus built on Base 2. If you are getting around 260 songs, then it would seem the closest Power-of-2 would be the limit. That is, 2 to the 8th power, or 256. This is a ->very<- common limit on RISC-type computers, which are used when the newer high-powered systems are overkill.

If anyone has ever used older 8bit machines(and older 16bit), you'll remember that when a number gets too high, it "flips" and suddenly is a low negative number. That is what is happening here, except negative numbers arent represented and instead it starts at zero.

Why not make the limit higher? To increase the limit they would have to do one of 2 things. 1)invent a 9bit processor. This isnt going to happen, sorry. Not even BMW. 2)Implement a 16bit procssor. This will likely triple the cost of the stereo. Highly unlikely we'll ever see that, especially since 65536 is too many.

In short, 256 is going to be the limit. Furthermore, if you are using 30 albums, each in its own folder, and still getting approx 256 songs, then the folders dont count against you.

Disclaimer:I'm not a BMW engineer, I'm a Computer Scientist
 
#67 ·
woobiee said:
-the tail lights have a backup set of bulbs, incase one fails, the backup takes over
-the coupe seat handles (the handles that folds the front seats for rear occupents to enter/exit) can double as a seat belt holder for easy access.
-for greater range of your bmw key, put the metal part of the key under your chin (must be in contact) and push any button. the range should double or more.

how to make the handles to be used as the seat belt holders?:eek:
 
#70 ·
Damn my thread is still here after like 3 years lol.
 
#72 ·
koolharshis said:
lol thanks alot for the tips and tricks.
Im about to buy a 2000 323i this friday. Could you please tell me if all these things work (ex. window roll down, etc)?
THANKS!
Yeah all of it works. The one thing I didn't find out about till maybe 2-3 years of owning my car since I got it in 2001 was the window and sunroof rolldown when you hold down the open locks button on the key. Also insert the key into the door and turn left to open windows and moonroof, turn right to close them up and arm the alarm.
 
#73 · (Edited)
L337E46 said:
7. There is flashlight in the glove box.
I just picked up my '99 323i today and when I found the rechargeable flashlight inside the glove compartment I laughed like a drain for about five minutes. It is soo cool.

L337E46 said:
8. There are amber lights that shine on the center console.
Gonna have to check this one. I'm still disappointed that I didn't get folding door mirrors with a button next to the mirror adjust joystick. Apparently they will still fold up while you are driving up to 20mph. Could someone try this for me? :D


Also, did you mention that the auto-dimming rear-view mirror un-dims when you put the shift into reverse? It really does work...
 
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