[E91_Bazza]

Hi all, my car is a UK RHD 2008 E91 320i (N43B20). The previous owner apparently replaced the DME and CAS modules. A lot of the coding was wrong (like the injectors) but it did run. I have since coded the injectors and all was working fine earlier apart from the stereo.
My aftermarket stereo turned itself off and wouldn't turn on again. Rather than emptying the boot and pulling the battery terminal as I should have, I pulled glove box fuses 14, 15, 18, 19, 27, 42, 56, 63, 76 as someone here said they had. Some of the fuses were missing, definitely 42.
In putting the fuses back (One 10A four 5A, I may have put one or two into the wrong, previously empty location/s (only corresponding to those numbers).
My wipers are constantly on with ignition. I have errors on the dash for power steering (not working at all), ABS, Airbags, seatbelt and start/stop.
I have tried removing all of the fuses and disconnecting the battery terminal but it still has the same issues.
The positions and values of the fuses fitted does not seem to correspond with any of the fuse box diagrams I can find online. I have sifted through many threads here and elsewhere, for hours, with no luck.
I need any help I can get. Thanks, Bazza.

Link to picture of my fuse box.
https://ibb.co/6wTr8sg

[gbalthrop]

Originally Posted by E91_Bazza

... car is a UK RHD 2008 E91 320i (N43B20)... all was working fine earlier apart from the stereo.
My aftermarket stereo turned itself off and wouldn't turn on again...
I pulled glove box fuses 14, 15, 18, 19, 27, 42, 56, 63, 76...
My wipers are constantly on with ignition. I have errors on the dash for power steering (not working at all), ABS, Airbags, seatbelt and start/stop.
I have tried removing all of the fuses and disconnecting the battery terminal but it still has the same issues.
The positions and values of the fuses fitted does not seem to correspond with any of the fuse box diagrams I can find online...

"Elektrickity" is NOT most DIY'ers "Strong Point". It is DIFFERENT from mechanical assemblies, requiring NEW skills: Reading/Interpreting wiring diagrams, & TESTING wiring with Multimeter, since you can't SEE those pesky little electrons. You CAN'T tell the players WITHOUT a "program", and if your "Tri-fold" fuse chart is no longer attached to removable Glovebox Panel, you NEED a correct Fuse Chart as well as circuit diagram, to prevent doing more harm than good "Messing With" the electrical system.

Hope you understand WHY one should NEVER randomly pull fuses UNLESS he has "Known-Correct" Fuse Chart (Location & Amperage of fuse) & wiring diagram identifying all components powered by that fuse circuit.

I will attach (to NEXT Post) some ISTA ScreenPrints of Fuse circuits and EPS circuit (NO JB Fuse Panel Fuse), so you can see what information is available, at least to those who downloaded ISTA, BEFORE BMW went on a "tear" and caused closure of MEGA sites hosting INPA/ISTA. Our earliest E9x models are 19-years-old, and the LATEST models are > 10-years old (LAST Production).

I will also attach Bentley Manual Fuse Chart for 2008 & Later E9x Models. ANYONE "messing with" fuses SHOULD KNOW:
1) There are THREE (3) different fuse charts for E9x Models:
a) Build Date BEFORE 3/1/2007 (yes, JB FuseBox LAYOUT was changed in MIDDLE of 2007 Model run);
b) 3/1/2007 to 8/31/2007: New LAYOUT of JB FuseBox; Fuse NUMBERING by system powered remained the SAME as BEFORE 3/1/2007, which caused "Non-sequential" numbering. As example, fuses on top row, Left-to-Right were: "48, 47, 53, 50, 14". The fuse numbers for those 5 fuse positions BEFORE 3/1/2007 were: "1, 2, 3, 4, 5".
c) For 2008 & Later Models, the Function of each fuse POSITION remained the SAME as 2007B models, but the NUMBERING was changed to generally have Fuse #1 at top-left, and numbers increasing "Left-to-Right, Top-to-Bottom." After 9/1/2007, those 5 fuses at Top-Left are numbered "1, 2, 3, 4, 5". Fuse #48 BEFORE 9/1/2007 powered "Rear Wiper & Washer". AFTER 9/1/2007 (2008 & LATER Models), Fuse #1 (top-left fuse) powered "Rear Wiper & Washer".

Confused yet??? If so, just make SURE you have the CORRECT Fuse chart for YOUR vehicle's Build Date:
1) BEFORE 3/1/2007;
2) Between 3/1/2007 & 8/31/2007;
3) AFTER 9/1/2007 (2008 & Later E9x Models).

NOT sure HOW to best help you sort your fuse issues. Is your photo of JB Fuse Panel taken AFTER you removed and replaced the fuses you list? Your photo shows 10A fuse in F14 socket, instead of 15A; AND a 10A fuse in F76 socket, instead of 5A fuse, but at least SOME fuse is present in those two sockets. All other fuses you suggest you removed are MISSING:
15, 18, 19, 27, 42, 56, & 63 are all Missing in the photo.

I don't have EPS or Auto Start-Stop, so have NO opinion on WHY those functions may NOT be operating properly, other than to suggest the obvious: check power supply with DMM. If there was "arcing" or spark when you removed a fuse, you MAY have damaged the "Fusible Links" on the Rear Power Distribution Panel on top of the Battery.

E91 has easiest access to Negative Battery Terminal of all E9x models: just remove cargo floor and battery cover on right. Most of the fuses you suggest you pulled (but they are NOT there now, so perhaps you have numbering wrong (?)) would NOT be live if Ignition OFF, and had been off for ~ 10 minutes, as they are powered by 30G Relay (KL30G).

See Fuse Circuits attached to next post for details, and please let me know if you have specific questions. As for your Radio, we need to know which of 3 possible radio models you have: 0676 Hi-Fi, 0677 Top Hi-Fi, Other. You have NO fuse for Amplifier in place, but if you had base Radio, then you would have no separate Amp (A18) anyway. Either ISTA or Online VIN Decoder would show the code for your Radio Option. INPA or ISTA would offer diagnostics of Radio/Amp, or ANY Scan Tool capable of reading Fault Codes or Live Data from Radio or M-ASK Modules.
George

[gbalthrop]

ISTA ScreenPrints of F14 - F76 circuits are attached, per prior post.
George

[gbalthrop]

ISTA ScreenPrints of Engine Start-Stop & EPS, with Bentley 2008 & Later Fuse Charts are attached, per prior post.
George

[E91_Bazza]

Originally Posted by gbalthrop

"Elektrickity" is NOT most DIY'ers "Strong Point". It is DIFFERENT from mechanical assemblies, requiring NEW skills: Reading/Interpreting wiring diagrams, & TESTING wiring with Multimeter, since you can't SEE those pesky little electrons. You CAN'T tell the players WITHOUT a "program", and if your "Tri-fold" fuse chart is no longer attached to removable Glovebox Panel, you NEED a correct Fuse Chart as well as circuit diagram, to prevent doing more harm than good "Messing With" the electrical system.

Hope you understand WHY one should NEVER randomly pull fuses UNLESS he has "Known-Correct" Fuse Chart (Location & Amperage of fuse) & wiring diagram identifying all components powered by that fuse circuit.

I will attach (to NEXT Post) some ISTA ScreenPrints of Fuse circuits and EPS circuit (NO JB Fuse Panel Fuse), so you can see what information is available, at least to those who downloaded ISTA, BEFORE BMW went on a "tear" and caused closure of MEGA sites hosting INPA/ISTA. Our earliest E9x models are 19-years-old, and the LATEST models are > 10-years old (LAST Production).

I will also attach Bentley Manual Fuse Chart for 2008 & Later E9x Models. ANYONE "messing with" fuses SHOULD KNOW:
1) There are THREE (3) different fuse charts for E9x Models:
a) Build Date BEFORE 3/1/2007 (yes, JB FuseBox LAYOUT was changed in MIDDLE of 2007 Model run);
b) 3/1/2007 to 8/31/2007: New LAYOUT of JB FuseBox; Fuse NUMBERING by system powered remained the SAME as BEFORE 3/1/2007, which caused "Non-sequential" numbering. As example, fuses on top row, Left-to-Right were: "48, 47, 53, 50, 14". The fuse numbers for those 5 fuse positions BEFORE 3/1/2007 were: "1, 2, 3, 4, 5".
c) For 2008 & Later Models, the Function of each fuse POSITION remained the SAME as 2007B models, but the NUMBERING was changed to generally have Fuse #1 at top-left, and numbers increasing "Left-to-Right, Top-to-Bottom." After 9/1/2007, those 5 fuses at Top-Left are numbered "1, 2, 3, 4, 5". Fuse #48 BEFORE 9/1/2007 powered "Rear Wiper & Washer". AFTER 9/1/2007 (2008 & LATER Models), Fuse #1 (top-left fuse) powered "Rear Wiper & Washer".

Confused yet??? If so, just make SURE you have the CORRECT Fuse chart for YOUR vehicle's Build Date:
1) BEFORE 3/1/2007;
2) Between 3/1/2007 & 8/31/2007;
3) AFTER 9/1/2007 (2008 & Later E9x Models).

NOT sure HOW to best help you sort your fuse issues. Is your photo of JB Fuse Panel taken AFTER you removed and replaced the fuses you list? Your photo shows 10A fuse in F14 socket, instead of 15A; AND a 10A fuse in F76 socket, instead of 5A fuse, but at least SOME fuse is present in those two sockets. All other fuses you suggest you removed are MISSING:
15, 18, 19, 27, 42, 56, & 63 are all Missing in the photo.

I don't have EPS or Auto Start-Stop, so have NO opinion on WHY those functions may NOT be operating properly, other than to suggest the obvious: check power supply with DMM. If there was "arcing" or spark when you removed a fuse, you MAY have damaged the "Fusible Links" on the Rear Power Distribution Panel on top of the Battery.

E91 has easiest access to Negative Battery Terminal of all E9x models: just remove cargo floor and battery cover on right. Most of the fuses you suggest you pulled (but they are NOT there now, so perhaps you have numbering wrong (?)) would NOT be live if Ignition OFF, and had been off for ~ 10 minutes, as they are powered by 30G Relay (KL30G).

See Fuse Circuits attached to next post for details, and please let me know if you have specific questions. As for your Radio, we need to know which of 3 possible radio models you have: 0676 Hi-Fi, 0677 Top Hi-Fi, Other. You have NO fuse for Amplifier in place, but if you had base Radio, then you would have no separate Amp (A18) anyway. Either ISTA or Online VIN Decoder would show the code for your Radio Option. INPA or ISTA would offer diagnostics of Radio/Amp, or ANY Scan Tool capable of reading Fault Codes or Live Data from Radio or M-ASK Modules.
George

Hi George. I was hoping you would reply to this 🙂
I'm 200 miles away from home (and therefore my multimeter, ISTA/inpa laptop and d-can cable etc.). I do have 6L oil, ~2L coolant, a trolley jack, tyre iron, full sized spare wheel and other tools in the boot. The reason I feared getting to the terminal 🤣. I'm now 99% sure the fuse chart I had was wrong as it clashes with the chart you provided. The fuse positions correspond with an E90 fusebox I managed to find on eBay (a great idea from another member on here) thankfully, matching it with the fuses I had out, the car is back working perfectly. I'm either going to print out a new chart or see if I can find one on eBay or a breakers yard.
I'm guessing when the previous owner replaced the DME/CAS they may have taken the fuse box from the donor car(?).
Believe it or not, I'm actually an ex bike technician with too much experience working with charging systems, lighting systems, relays and the cursed alarm systems: fitting and more often removing. I'm learning the more advanced canbus system as I go.
I won't be poking about in the fuse box again without a confirmed correct chart AND the terminal safely off the battery.
Thanks for your help, Bazza

P.S, on the off chance someone else has the same fusebox and would like to see the configuration that worked for me (possible default configuration) the link is here:
https://ibb.co/MNzjdrH

[Watty16]

Hello, sorry to hijack this post but I'm a new member and can't work out how to create my own thread.

I have a 2011 lci 325d manual e91, I had a fuse blow number 20 which is labelled up as being the bolster air pump for both seats.

When it blew there was smoke coming from the dash etc and my car has every possible light flashing that it could do to signify a fault.


I've stripped the dash down and noticed that a cable (red and black) in fuse 15 has completely melted and is bare copper all the way from the fuse box, behind the dash and over to the driver's side where I haven't finished following it yet to its final destination.

Now the car starts and drives, but I have no power steering, no abs, central locking doesn't work, boot won't open and car has service lights aswell as the red car on a lift image constantly coming up.

The wipers are constantly on with ignition and all lights work except indicators don't flash on dash, only operate outside of the car.


Any one got ideas how deep I need to dive to work this out?

Fortunately so far it looks to have not melted other cables on its demo derby, but I am going to check all cables throughout before replacing this one.

Ow and also, when I try to connect to the car via obd scan with bimmerlink, it can't find an ECU to connect too, however it does allow me to see fault codes and theres like 38 errors in various systems of the car.