Problem Solving - Forum Guide to Fuses - E85 and E86

Mackumz23 · Post by **Mackumz23** » Tue Oct 30, 2018 8:14 pm

Mine too Hughesy99...same car too. Started with alarm going off...removed siren and that sorted it for a while, but then body control unit flipped out. Had that reset and all good till yesterday.
So it seems to be linked to security but this fuse controls the windows and worse the wipers! Any ideas welcome...

PHILGZ4 · Post by **PHILGZ4** » Wed Mar 27, 2019 3:33 pm

Adamski wrote: ↑Fri Jun 15, 2012 12:08 am Ok, so we've had a few members report problems associated with fuses.

I thought I would pull together this guide to fuses, and their functions so that any members searching for fuse related issues would arrive here in future. I've organised the thread so that anyone searching can find the specific terms. There's a picture at the bottom of this post with the fuse numbers and their relative positions

Hope you find this useful.

Equipment - Fuse Number

Airbag - 13, 45
ASC/DSC - 7, 24, 42, 43
CD-Changer - 48
Central Locking System - 11, 30
Cigarette Lighter - 5
Cigarette Ligther ( Australia ) - 5, 8
Clutch Switch - 14
Cruise Control - 28
DMTL ( fuel leakage diagnosis ) - 33
EGS Transmission Control - 9
Electric Seat Heating - 12, 16
Electric Circuits - 12
Electric Box Fan - 33
Electro Inside and Outside Mirrors - 25
EPS ( electric power steering ) - 22
EWS ( electric immobiliser ) - 10, 12, 54
Fold-in Mirrors - 27
Front Fog Lights - 36
Fuel Pump - 19, 33
Headlight Cleaning System - 40
Heated Blower - 57
Heated Rear Window - 20, 25
Heated Spray Nozzles - 21
Heater/Air Conditioning - 22, 39
Ignition Starter Switch - 54, 58
Instrument Cluster - 12, 23, 24
Interor and Luggage Comp. Lights - 10, 12, 26
Light Circuits ( headlights, indicators, brake lights, hazards etc ) 14, 23, 59, 60
Mirror Adjustment - 8
Mirror Heating ( driver, passenger ) - 8, 21
Multi Function Steering Wheel ( MFSW ) - 28
Navigation, TV - 49
OBDI Power Socket - 9, 24
Park Distance Control ( PDC ) - 8
Power Soft Top ( Roof Motor ) - 12, 31, 55
Radio - 47, 50
Rain Sensor - 28
Reversing Light - 6
Seat Adjustment Left - 29
Seat Adjustment Right - 15
Secondary Air Pump - 33, 56
Shirting Illumiation Gate - 24
Sport Button Switch - 7
Sequential Manual Gearbox SMG Control - 9, 32
Telephone - 49
Thiefproofing System - 30
Window Lift Motor - 41, 46
Wipe Wash System, Window Cleaning - 38

Fuse box access is through the glove box. Push up on the tabs shown in the circles below to drop the glovebox down fully, which will reveal the fuses....

Please advise of any errors or ommissions, and I'll update the list

Hi, brilliant write up and very useful with the fuse numbers and what they do. Can i ask if i am trying to hardwire my dashcam to go on/off with the ignition would fuse 47 ( radio ) be a good one to use?. any advice would be great. Thanks.

G600 · Post by **G600** » Thu Mar 28, 2019 3:44 pm

Assuming you're fitting it up by the mirror there's a switched live wire up there, saves running one from the fuse box, there's a guide viewtopic.php?t=73905

Sidewaze Samm · Post by **Sidewaze Samm** » Thu Mar 28, 2019 11:01 pm

Northman wrote: ↑Thu May 11, 2017 8:59 pm
z4 fuses.jpg

Do all the facelift cars have cards with little pictures on, rather than unambiguous text?
My card is missing, but there's a few fuses on this card I'd just be guessing at.

This card is from a 2008 2.0, would it be the same in my 2006 2.5si?

EDIT: why doesn't the image show?

Mr Tidy · Post by **Mr Tidy** » Thu Mar 28, 2019 11:20 pm

My 1st E86 didn't have the card, but I just found out my current one does when I pulled Fuse 40 on Tuesday - result!

That image is of half of the card, the other half has the "Equipment - Fuse Number" list that the OP has put in his post.

I think like mine yours may be different - I'm sure mine had more fuses in use than on that image! For example I can't see one there for the electric water pump - I assume the 2.0i didn't have one.

Martinez · Post by **Martinez** » Tue Jul 23, 2019 10:13 pm

Brilliant.
Just what I need to wire in a dash cam!
Thanks
Martin.

Limonge · Post by **Limonge** » Tue Sep 10, 2019 10:33 pm

Hello, what's the size of the fuses? I want to buy an "add a fuse/ fuse tap" and I do not know if it's a standard, mini or micro

Thanks!

Mr Tidy · Post by **Mr Tidy** » Tue Sep 10, 2019 10:47 pm

Well it's very unscientific, but I reckon the plastic part is about half an inch wide.

Or you could just open the glovebox then drop it down for access to your fusebox.

Limonge · Post by **Limonge** » Tue Sep 10, 2019 11:11 pm

I think it's a standard (the car is in the shop right now), at least the E46 are standard, and I assume they should be the same... I'll post it as soon as I get the car back

Dgutz646 · Post by **Dgutz646** » Mon Oct 07, 2019 7:59 pm

My E85 Z4 severely struggle s at cold start and I can't seem to figure out why. It only struggles when the car has been sitting over night which is over right hours. It won't start without a crank and a push of the aclerater. My assumption is that it has something to do with the fuel pump since the car starts fine when warm

ph001 · Post by **ph001** » Mon Oct 07, 2019 9:11 pm

Dgutz646 wrote: ↑Mon Oct 07, 2019 7:59 pm My E85 Z4 severely struggle s at cold start and I can't seem to figure out why. It only struggles when the car has been sitting over night which is over right hours. It won't start without a crank and a push of the aclerater. My assumption is that it has something to do with the fuel pump since the car starts fine when warm

This thread is about fuses. You will get a far better response creating a new topic in the appropriate place.

wadesh · Post by **wadesh** » Thu Aug 05, 2021 4:46 pm

Does anyone know the side effect of pulling out the following fuses? ASC/DSC - 7, 24, 42, 43. I have a failed DSC pump and was tired of looking at the warning lights ($3500 to fix and I don't drive car in bad weather so was going to let it go for now). In any case, I pulled these fuses and now the car won't start, just cranks. Put them back in, the same thing won't start. I'm getting this very odd whirring noise from the right rear wheel well when I turn the ignition on. Something I've not heard before. 2007 Z4 M E85

cruicka · Post by **cruicka** » Sun Sep 05, 2021 9:51 am

Did you find out what the whirring noise from the right rear wheel well was? I heard it yesterday on my car (e85 2.5i) and intrigued what it is.

DMike · Post by **DMike** » Sun Sep 05, 2021 1:20 pm

cruicka wrote: ↑Sun Sep 05, 2021 9:51 am Did you find out what the whirring noise from the right rear wheel well was? I heard it yesterday on my car (e85 2.5i) and intrigued what it is.

From that location it’s likely to be the fuel pump and a whirring noise is normal.

cruicka · Post by **cruicka** » Mon Sep 06, 2021 10:51 am

DMike wrote: ↑Sun Sep 05, 2021 1:20 pm
cruicka wrote: ↑Sun Sep 05, 2021 9:51 am Did you find out what the whirring noise from the right rear wheel well was? I heard it yesterday on my car (e85 2.5i) and intrigued what it is.
From that location it’s likely to be the fuel pump and a whirring noise is normal.

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