E83 owner here, need Z4 help!

maat922 · 10-27-2025, 06:37 PM

Only two cars use this fuse block: the 1st Gen Z4 and the 1.5 Gen X3. No one seems to know what these fuses go to. I can't find a single diagram anywhere on the Internet. Do any of you Z4 guys know? It sits right on top of the DME in a gen1.5 X3. Thanks in advance for any knowledge!

3002 tii · 10-28-2025, 03:25 PM

Pretty sure that is fuse connector A8680 which is for the engine electronics. I can take a look after work but best thing I could find on my phone was this:

https://fuseandrelay.com/bmw/x3-e83.html

Efthreeoh · 11-01-2025, 12:22 PM

I'm sure INPA would have the electrical diagram to reference.

10-27-2025, 06:37 PM	#1
maat922 New Member 0 Rep 7 Posts Drives: '08 X3 6mt Join Date: Oct 2025 Location: New Hampshire iTrader: (0)	E83 owner here, need Z4 help! Only two cars use this fuse block: the 1st Gen Z4 and the 1.5 Gen X3. No one seems to know what these fuses go to. I can't find a single diagram anywhere on the Internet. Do any of you Z4 guys know? It sits right on top of the DME in a gen1.5 X3. Thanks in advance for any knowledge! Attached Images
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10-28-2025, 03:25 PM	#2
3002 tii Lieutenant General 2861 Rep 12,981 Posts Drives: Z4 M, X5, GX460 Join Date: Apr 2008 Location: CT iTrader: (109) Garage List E86 Z4 M GTS [9.91] F15 X5 35i [9.17] F10 550i (Retired) [9.17] F25 X3 35i (Retired) [9.43] E85 Z4 M (Retired) [9.44] E82 135is (Retired) [9.53] E90 328xi (Retired) [9.25] E86 Z4 3.0si (Retired) [8.95]	Pretty sure that is fuse connector A8680 which is for the engine electronics. I can take a look after work but best thing I could find on my phone was this: https://fuseandrelay.com/bmw/x3-e83.html __________________ Follow for latest mods
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11-01-2025, 12:22 PM	#3
Efthreeoh General 21517 Rep 20,921 Posts Drives: Z4 Coupe & Z3 Roadster Join Date: May 2012 Location: Summum Choragium iTrader: (0)	I'm sure INPA would have the electrical diagram to reference. __________________ A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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