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I am wondering where I can find the fuse box on my 528i and if anyone could post an overview of where all the fuses are supposed to be located?

I don't have a service manual and need to find out if have blown fuses or not. (Also so that I can put fuses in the correct places).

Thank you for any help!
 

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... and under the carpet at the front of the right front seat.

You REALLY should break down and buy the E39 Bentley Service Manual, esp if you plan to do any electrical troubleshooting at all! This model is not simple!
 

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Look in the compartment at the top of the glovebox, where one of the fuse panels sits. There's a card that pulls out with a little thumb tab. That's the diagram of the fuses in that panel. For the trunk panel, pull back the battery cover on the right-hand side of the trunk. It has the diagram for the fuses in there. As for the one under the passenger side carpet in front of the seat, I'll have to check that one out myself.
 

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Locations:

1. passenger Side E-Box (under cabin filter housing).

2. Glovebox

3. Under front Passenger Seat (under carpet).

4. Trunk.
 

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Locations
Hi Cam,
I always wondered where ALL the fuses & fusible links were located. Thanks.

I did a quick search and then created a bestlink with this info:
(Keywords used were "E39" "fusebox" "fuse box" "fusible link")

- Where to find E39 fuse boxes (1) (WDS) & how to find the front passenger seat undercarpet fuse panel (1)

Every time I look anything up, MORE QUESTIONS pop up:
Q1: Do we have high-current "fusible links" in other places in the E39?
Q2: Are any individual devices individually fused in the E39?
 

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Do you have an overview of what the different fuses are for as well? With the number etc. For example I want to know which fuses are for the fog lights in the front.
bobdmac had already answered this question in his reply above (see post #10) :) ...and the text from the owners manual also says were the index for the fuses are located (for sedan & Touring/wagon). Note the highlighted text in the pages attached from the owners manual (same ones that were posted above) and you'll see that it says that there is an index (glovebox & trunk) for the fuse locations etc. :)

BTW, all external lighting is controlled by the LCM (located in the passenger footwell on the external wall)...so you won't find individual fuses for any exterior lights (including the fog lights).

Look in the compartment at the top of the glovebox, where one of the fuse panels sits. There's a card that pulls out with a little thumb tab. That's the diagram of the fuses in that panel.

For the trunk panel, pull back the battery cover on the right-hand side of the trunk. It has the diagram for the fuses in there. As for the one under the passenger side carpet in front of the seat, I'll have to check that one out myself.
 

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1. passenger Side E-Box (under cabin filter housing).
2. Glovebox
3. Under front Passenger Seat (under carpet).
4. Trunk.
I'm looking for all the fuses & what they do in order to debug for here:
- Warning: I charged my battery today & apparently killed my instrument cluster & MID

I see this information, as to where each fuse is, what size it is, and what it does is scattered about (with some pictures requiring logins on other web sites to view); so I'll try to assemble what I can find into this thread.

Note: It seems harder to find the ebox and the under-seat fuse descriptions than it is to find the glovebox and batterybox descriptions.

Location of the fuse boxes (as cn90 said):

  1. Passenger side e-box (under the cabin filter housing).
  2. Glovebox
  3. Under front passenger seat (under carpet).
  4. Trunk batterybox (above the battery)
Here is a 1998 540i fuse guide from bimmerforums:
- E39 Glove Compartment and Trunk Fuse Guide

1998 540i glove box fuse guide:


1998 540i trunk batterybox fuse guide:


E39 glovebox fusebox access (kindly supplied by QSilver7):


E39 trunk batterybox fusebox access (kindly supplied by QSilver7):


The under-passenger-seat under-carpet fuses are harder to find:
- E39 (1997 - 2003) > fuse diagram



As for accessing this under-seat-carpet fusebox:
- Roadfly Secondary Air Pump replacement

cunnincc said:
To get to the fuse box under the passenger side carpet, first you have to remove the black trim along the door sill. The plastic clips hold it in. You can pry it up and it'll pop off. Then remove the small plastic trim in front of that (where the right front kick panel is). Then fold the carpet back. Have fun because the carpet is tough!! The fuses are located under ANOTHER foam material. If you open the pass door, and where it says "BMW" on the doorsill, the fuse is about 6" above the sill, and 6" in front of the "W" in the BMW.
And from this thread, we have additional details:
- E39 (1997 - 2003) > fuse diagram

After removing all the plastic trims as described above around the lower side of the door, the passenger seat has to be loosened (no need to remove it from the car) and tilted back in order to pull the carpet up. After the carpet is pulled up, then a foam has to be removed to expose the fuse box. The fuse box is covered by two plastic covers. Be careful though, the circuit is HOT, i.e. the 12V is alive even with no key in ignition. Luckily, there is no GND or metal around this area.

There are a row of 8 fuses as shown. The fuse for the secondary air pump is on the far left.
While we know the secondary air pump is there, we need a list of fuses located under the seat and in the ebox and their amperage and purpose.

Looking here:
- Need help with location of the fuse boxs and overview of fuse positions for 528i?
- Location of fuses 75 & 76

I find cn90's picture of the ebox fuses (for a vehicle with a manual transmission):
cn90 said:
That picture is BELOW the passenger side cabin Filter area.
- Open the hood.
- Remove the cabin Filter HOUSING on the passenger side.
Then you will see this.
Note: In a different thread, cn90 explains some of the fuse purposes:
- E39 (1997 - 2003) > Fuses under fresh air filter on E39

I just took a pic of my car Fuse Box under Cabin Filter (it is a 1998 528i 5-speed so only one DME; 2nd slot next to DME is empty because no Automatic Trans Computer); one of your 30A Fuses controls the O2 sensor. You mentioned Fuse #2 from the Left (or counting from the FRONT to REAR).
Fuse #2 is probably the Fuse controlling the O2 sensor.



Here is an ebox from a 97 528i in this thread (with an automatic transmission):
- E39 (1997 - 2003) > Electrical Scare!!!!

The main difference is:
- Yours is Automatic (there is an extra ECU for A.T.).
- My car is Manual Trans so that space is empty.

The proper way to test a relay is NOT by shaking it.
Use the Bosch testing procedures. Make sure you understand the concept between 4-prong relay and 5-prong relay (which by itself has 2 types, 2 x 87s or 87a and 87b):
http://www.bcae1.com/relays.htm



I find a clue about the ebox fuses digging some more, and seeing this EAC Tuning post in this thread:
- Fuses under fresh air filter on E39
Those fuses are for the DME and EGS (engine and transmission) computers if I understand what you are describing correctly. I would have it checked out, a couple popped fuses is one thing but a fried control module can be very expensive.


WIP WIP WIP (not finished yet) ... until we have a description of every fuse in the car (including those in the ebox and in the underseat fusebox).
 

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Seek to understand,^Value
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Looking at my trunk fusebox caused more questions than it answered!

Here is the sticker on the inside of the battery door:

Note: Yellow circles are the fuses in my 2002 BMW 525i:

And, here is a picture of what it's trying to represent:

Note: Yellow lines are the fuses in my 2002 BMW 525i:


Some questions that arise:
Q: What is the "on board monitor"?
Q: I don't have a CD changer in the trunk (I have the single-CD BMW Business CD player in the dash); so why the 30-amp fuse in position 56?
Q: I don't have a 'telephone' (but I do have the wiring); so why the 10 amp fuse in position 57?
Q: What are the purposes of the three relays above the fuse box?

 

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