JB4/BMS stage 1 install question

TahoeM3 · 05-06-2015, 10:15 AM

For those that have done this, I have a couple of questions.

The main question is how in the world is it possible to do the MAP sensor install? I unbolted the overflow reservoir and moved it, but it became clear that even if I disconnect the hose, there would be zero chance of fitting my hand down there to reach the plug. I'm not sure I could even fit my wrist in there if I had no hands. It's extremely tight. And getting a screwdriver in there and turning it to lift the tab seems pretty much impossible. Did others remove anything else to get access?

Also, is disconnecting the battery necessary, or is it sufficient to just keep the wires away from the terminal? I did it last night, but it was sparking as the trunk light was on, and it seemed more risky than not touching it at all.

8600RPM · 05-06-2015, 10:19 AM

Gotta lose some weight to play man!! ( jk . Riding off the lose weight to fit into seats better threads). Yes it's tight there

Mike@N54Tuning.com · 05-06-2015, 10:30 AM

Quote:

Originally Posted by TahoeM3

For those that have done this, I have a couple of questions.

The main question is how in the world is it possible to do the MAP sensor install? I unbolted the overflow reservoir and moved it, but it became clear that even if I disconnect the hose, there would be zero chance of fitting my hand down there to reach the plug. I'm not sure I could even fit my wrist in there if I had no hands. It's extremely tight. And getting a screwdriver in there and turning it to lift the tab seems pretty much impossible. Did others remove anything else to get access?

Also, is disconnecting the battery necessary, or is it sufficient to just keep the wires away from the terminal? I did it last night, but it was sparking as the trunk light was on, and it seemed more risky than not touching it at all.

If you can't reach your hand in there are tools you can use to unclip. I have pretty big hands and I managed to unbolt the reservoir and move it out of the way. I think I rotated the hose out of the way as well.

http://f80.bimmerpost.com/forums/sho...41&postcount=3

Mike

Hobbination · 05-06-2015, 10:37 AM

6'5" 230 here... Big hands etc... Took a minute but you'll get it, in fact as I write I'm sure you've already got it.

TahoeM3 · 05-06-2015, 12:52 PM

Thanks all, I'll try it again. If I get it in, I'm not looking forward to having to undo this every time I take my car in for service...

forza1976 · 05-06-2015, 01:37 PM

Quote:

Originally Posted by TahoeM3

Thanks all, I'll try it again. If I get it in, I'm not looking forward to having to undo this every time I take my car in for service...

willkommen zum modernen tuning

///M.Tonee · 05-06-2015, 01:55 PM

these tools will help

TahoeM3 · 05-06-2015, 04:03 PM

Quote:

Originally Posted by ///M.Tonee

these tools will help

That would definitely help! I wish they had a grabber version, too.

///M.Tonee · 05-06-2015, 04:06 PM

Quote:

Originally Posted by TahoeM3

Quote:

Originally Posted by ///M.Tonee

these tools will help

That would definitely help! I wish they had a grabber version, too.

Wish granted

TahoeM3 · 05-06-2015, 04:59 PM

Quote:

Originally Posted by ///M.Tonee

Wish granted

Excellent, thanks!

GGreek5 · 05-06-2015, 07:36 PM

Try removing the rubber weather strip as well. May give you extra space.

dmk08 · 05-18-2015, 09:04 AM

Quote:

Originally Posted by ///M.Tonee

Wish granted

I can install JB4 in stage 1 configuration in 15 minutes with this tool. All I have to do is pull back the weather stripping on the firewall, loosen the two T25 screws on the reservoir, and pull it up out of the rubber grommet. I DO NOT REMOVE THE COOLANT HOSE. Use the tool to grab the lip on the very back of the plug and should be simple to click it in.

The tool is well worth the $11 if you plan on doing JB4 install/removes by yourself.

http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

Bahn360Photo · 05-18-2015, 10:11 AM

Quote:

Originally Posted by ///M.Tonee

these tools will help

+1

edwinm3 · 05-18-2015, 03:57 PM

long flat head screwdrivers did it for me, took a couple of minutes

Mike@N54Tuning.com · 05-19-2015, 08:05 AM

There are many different techniques you can use. Once you get it once you will figure it out pretty quick. Second time will be a breeze if you ever have to remove / re-install.

All the above tools / tricks are great advice.

Mike

05-06-2015, 10:15 AM	#1
TahoeM3 Major 410 Rep 1,025 Posts Drives: F-type R, GTR, X5 50i Join Date: Apr 2006 Location: Tampa, Fl iTrader: (0)	JB4/BMS stage 1 install question For those that have done this, I have a couple of questions. The main question is how in the world is it possible to do the MAP sensor install? I unbolted the overflow reservoir and moved it, but it became clear that even if I disconnect the hose, there would be zero chance of fitting my hand down there to reach the plug. I'm not sure I could even fit my wrist in there if I had no hands. It's extremely tight. And getting a screwdriver in there and turning it to lift the tab seems pretty much impossible. Did others remove anything else to get access? Also, is disconnecting the battery necessary, or is it sufficient to just keep the wires away from the terminal? I did it last night, but it was sparking as the trunk light was on, and it seemed more risky than not touching it at all. __________________ 2017 F-type SVR Black/black 2017 Nissan GTR Red/black 2022 BMW X5M MBB/SO Gone but not forgotten: '12 X5M, '07 AM SuperVantage, '05 Boxster S, '01 BMW M3,...
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05-06-2015, 10:19 AM	#2
8600RPM Lieutenant Colonel 657 Rep 1,749 Posts Drives: e92 m3 Join Date: Oct 2014 Location: AZ iTrader: (0)	Gotta lose some weight to play man!! ( jk . Riding off the lose weight to fit into seats better threads). Yes it's tight there
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05-06-2015, 10:37 AM	#4
Hobbination Lieutenant 65 Rep 503 Posts Drives: 2015 M4 Join Date: Dec 2007 Location: Honolulu HI iTrader: (0)	6'5" 230 here... Big hands etc... Took a minute but you'll get it, in fact as I write I'm sure you've already got it.
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05-06-2015, 12:52 PM	#5
TahoeM3 Major 410 Rep 1,025 Posts Drives: F-type R, GTR, X5 50i Join Date: Apr 2006 Location: Tampa, Fl iTrader: (0)	Thanks all, I'll try it again. If I get it in, I'm not looking forward to having to undo this every time I take my car in for service...
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05-06-2015, 01:55 PM	#7
///M.Tonee Captain 311 Rep 645 Posts Drives: Porsche 991.1 GT3 Join Date: Aug 2011 Location: Irvine, CA iTrader: (0)	these tools will help __________________ Garage: 2015 991.1 GT3 \| 2016 AMG GTS Sold \| 2015 C7 Z06 Sold \| 2015 M4 SO/6MT Sold Instagram: M.Tonee
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05-06-2015, 07:36 PM	#11
GGreek5 Olimpiakos 91 Rep 1,426 Posts Drives: M3 Join Date: Apr 2008 Location: Mass iTrader: (10)	Try removing the rubber weather strip as well. May give you extra space.
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05-18-2015, 03:57 PM	#14
edwinm3 Brigadier General 980 Rep 4,001 Posts Drives: F82 Join Date: Nov 2011 Location: Broward iTrader: (32)	long flat head screwdrivers did it for me, took a couple of minutes __________________ Grigio Telesto M4, 6MT. Coyote 5.0 F-150 991 GT3
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05-19-2015, 08:05 AM	#15
Mike@N54Tuning.com Joint Chiefs of Staff 4918 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	There are many different techniques you can use. Once you get it once you will figure it out pretty quick. Second time will be a breeze if you ever have to remove / re-install. All the above tools / tricks are great advice. Mike
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