Routing OBDII cable for JB4 install on a F10 550i

winkyeye · 12-07-2017, 10:10 PM

Hey guys I looked through Terry's thread on N54 forums and it provides no instructions as to how to route the OBDII cable from the engine bay to the inside of the car. I saw on a youtube video for a 328i that there is a grommet which you can poke out to pass the wire but I don't see anything similar on my car.

Here is a video for a 328i.

Thanks, any guidance would be greatly appreciated.

535_BiTurbo · 12-08-2017, 01:17 AM

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AZ-MCRacer · 12-08-2017, 06:59 AM

550 should be the same as 535i which I have done. There was a grommet available near the brake booster. I found it easier to insert a long screwdriver from the cabin side through the grommet, tape the JB4 wire to it and then pull it back in. It has been a while since I did it, but I don't remember it being difficult to do.

winkyeye · 12-08-2017, 09:00 AM

Hmm I don't see any free grommets without wires running through them already in my car. There is a large grommet with a bundle of cords running though and one just next to it with a cord running through.

BuiltnBoostedZ · 12-17-2017, 08:13 PM

I had the same problem. I kept trying to go in where the hood latch cable went through. If you look to the right of the brake booster just below the trim that separates the windshield from.the firewall....there's a small round foam/carpet cover....circular shaped. Pull that off. Push your hanger or screw driver through there. Attach the obd2 cable with tape and pull it through.

BDJL · 03-31-2018, 04:35 AM

Mine is a manual 550i so doesn't seem to have that spot. I just finished running the OBDII cable by taking apart the underhood cable and pushing it back into the cabin. I then cut a hole in the base, shrink wrapped the connector and put it into the boot. Slid the OBDII connector through then the hood cable and pulled and fit the grommet. Not ideal but with the 3rd pedal there is less room for a big guy with 2-3XL hands to work.

12-07-2017, 10:10 PM	#1
winkyeye New Member 0 Rep 17 Posts Drives: 2011 550xi Join Date: Apr 2017 Location: NY iTrader: (0)	Routing OBDII cable for JB4 install on a F10 550i Hey guys I looked through Terry's thread on N54 forums and it provides no instructions as to how to route the OBDII cable from the engine bay to the inside of the car. I saw on a youtube video for a 328i that there is a grommet which you can poke out to pass the wire but I don't see anything similar on my car. Here is a video for a 328i. Thanks, any guidance would be greatly appreciated.
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12-08-2017, 01:17 AM	#2
535_BiTurbo Captain 108 Rep 659 Posts Drives: 2012 550I - BMS Stg 1 & CAI Join Date: Sep 2013 Location: Texas iTrader: (0)	subscribing
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12-08-2017, 06:59 AM	#3
AZ-MCRacer First Lieutenant 306 Rep 332 Posts Drives: 2022 G82 M4, 2013 F10 N55 Join Date: Oct 2016 Location: Tempe, AZ iTrader: (0)	550 should be the same as 535i which I have done. There was a grommet available near the brake booster. I found it easier to insert a long screwdriver from the cabin side through the grommet, tape the JB4 wire to it and then pull it back in. It has been a while since I did it, but I don't remember it being difficult to do. __________________ 2022 G82 M4 - Isle of Man Green w/Kyalami Carbon Bucket Seats - MST Intakes, SSR Downpipes, JB4, AWE Exhaust. 2013 F10 N55 (535i), Pure Stage 2, Fuel-It PI Platinum, Fuel-It Stage 2 LPFP, BootMod3, Custom Turbo Inlet, Custom Cary Jordan Tune, More.. SOLD! 1999 e36 M3 - Estoril Blue - Track Car - S54 Swapped
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12-08-2017, 09:00 AM	#4
winkyeye New Member 0 Rep 17 Posts Drives: 2011 550xi Join Date: Apr 2017 Location: NY iTrader: (0)	Hmm I don't see any free grommets without wires running through them already in my car. There is a large grommet with a bundle of cords running though and one just next to it with a cord running through.
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12-17-2017, 08:13 PM	#5
BuiltnBoostedZ Private First Class 145 Rep 122 Posts Drives: 2012 535ix Join Date: Oct 2017 Location: I'm here bc I'm not all there iTrader: (0)	I had the same problem. I kept trying to go in where the hood latch cable went through. If you look to the right of the brake booster just below the trim that separates the windshield from.the firewall....there's a small round foam/carpet cover....circular shaped. Pull that off. Push your hanger or screw driver through there. Attach the obd2 cable with tape and pull it through.
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03-31-2018, 04:35 AM	#6
BDJL New Member 5 Rep 10 Posts Drives: 2011 550i 6MT, 2017 X1 M Sport Join Date: Aug 2015 Location: Reno, NV iTrader: (0)	Mine is a manual 550i so doesn't seem to have that spot. I just finished running the OBDII cable by taking apart the underhood cable and pushing it back into the cabin. I then cut a hole in the base, shrink wrapped the connector and put it into the boot. Slid the OBDII connector through then the hood cable and pulled and fit the grommet. Not ideal but with the 3rd pedal there is less room for a big guy with 2-3XL hands to work.
	Appreciate 0 Quote