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Thread: Selling My 86 745i Exectutive

  1. #1
    Join Date
    Jan 2009
    Location
    Northern Jersey
    Posts
    50
    My Cars
    86 745i, 74 e9, 74 e3

    Smile Selling My 86 745i Exectutive

    Hi,
    I have decided to put my 86 745i up for sale. I have 5 vintage BMW's and not enough time to devote to all of them.
    Its an Exectutive package car in very-good condition. Garret Turbo, adjustable wastegate, boost control, MagnaFlow stainless exhaust and gauge package installed by previous owner. Runs and drives great. Pulls very well.
    I drove it 1500 miles to the Vintage in Ashville and back and it performed flawlessly.
    All system worked fine until last month, the HVAC system stopped. (r134 converetd AC worked great) So there's a leak some where and I currently don't have the time or energy to investigate, that job will fall to the next owner. Heater and defroster work fine so your okay for the winter.

    Feel free to PM me with any questions.

    Craigslist Ad: https://newjersey.craigslist.org/cto...802738643.html

    Videos:

    Cold Start Video; https://www.youtube.com/watch?v=LofEb_274fI

    Drive Video: https://www.youtube.com/watch?v=Fp-b69Q04bE

    Walk Around: https://www.youtube.com/watch?v=8Ch8Bdrq8GA

    Thanks,
    John M
    Last edited by JMinNJ; 01-24-2019 at 11:28 AM.

  2. #2
    Join Date
    May 2010
    Location
    Tangent Oregon
    Posts
    450
    My Cars
    79' 320i 84' 733i
    Nice looking car, hopefully you get close to your price. Its nice to see E23's becoming more valuable.

  3. #3
    Join Date
    Dec 2013
    Location
    PA
    Posts
    886
    My Cars
    2000 M5, 2001 330i
    I remember when this car was up for sale a few years ago. The interior on this car is by far one of the best I've seen that isn't a straight up time capsule. Even mine wasn't near that nice and I always felt it was one of the better ones.

    That rust is really concerning though, my old car just got crushed recently over rust not too dissimilar from that. I thought it was fixable until one of the jack points collapsed from rust inside the rocker.
    2000 BMW M5 Evolve Alpha-N Tune, Evolve Carbon Fiber CAI's, UUC Short Throw Shifter, Dinan Front STB, Dinan Rear Sway Bar
    2001 BMW 330i ​Dynavin N7 Pro

    1985 BMW 745i 18" Style 37's, Team745i Chip, Getrag 265/6, Clutchmasters FX-300, UUC Short Throw Shifter, Strut Tower Bar, Bilstein HD's ("Build" Thread")(SOLD)
    1986 BMW 735i Getrag 265/6 Swap, Strut Tower Bar, Bilstein HD's, Euro F/R Conversion, 3.46 L/S Diff (Scrapped)

    2016 Ford Mustang GT Performance Pack Stock
    2004 Mercury Marauder
    Eaton M112, 3.4 Billetflow upper, Accufab SBTB + Plenum, 4.10's, Stainless Works LT's, 2.5" Exhaust, Borla Stingers, FX-R projectors, Addco F/R swaybars
    2003 Mercury Marauder JLT CAI, SCT Xcal4, Stainless Works LT's, SW 2.5" Catback
    1996 Ford Bronco
    4" lift, 35" BFG A/T's, MH1 projectors

  4. #4
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,487
    My Cars
    1983/84/85 745i

    Thumbs up

    Great looking ride...

    ...why the hell is it idling at 11:1 AFR?
    I make E23 parts.
    09/1983 745i (stolen spring '13 around Houston, TX Achatgruen on nutria buffalo. 8481080)
    10/1984 745i
    11/1984 745i
    11/1984 735i (10:1-265/6)
    Ford, MB, and GM round out the pack.



  5. #5
    Join Date
    Jan 2009
    Location
    Northern Jersey
    Posts
    50
    My Cars
    86 745i, 74 e9, 74 e3
    Quote Originally Posted by Hit Man X View Post
    Great looking ride...

    ...why the hell is it idling at 11:1 AFR?
    Good question. What should it AFR should be at idle? All of the modifications were done by the PO so I’m not sure what the correct AFR should be. Adjustments are made at the AFM?

  6. #6
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,487
    My Cars
    1983/84/85 745i

    Thumbs up

    BMW specs 1.5% CO for the Motronic 745i. My research points to right at 14:1 on the wideband, this is on a sealed engine, no leaks, correct plugs, correct idle RPM, fully hot, etc. Obviously, the idle is not 100% stable so it will fluctuate. I set these cars at 14:1 and they deviate between 13.5-14.2:1 usually as the RPM fluctuates. You will have to diddle with it to get it to spec.

    Here is what is odd to me on yours, you have a three wire ICV beside the throttle body. I am curious how this functions as the factory setup was just an 'idle slide valve'...like a carburetor choke essentially.

    If you have a chance, please pull the passenger kick panel cover and tell us what ECU is running on this vehicle. It should be 0.261.200.013. AFM should be 0.280.203.022 I am starting to think it is running a -059 from a US spec car. The main relay for the 013 is missing, the knock control unit check valve is missing, No1 cylinder spark pick up missing, the boost solenoid is missing, etc.



    Here is your VIN break down. S421 is your extinguisher. S427 is the warning triangle with holder. S440 is the executive package. S979 are velour floor mats

    VIN: WBAFJ910308752655
    Type code: 6991
    Model: 745 I (EUR)
    E-F-R series: E23
    Series: 7
    Type: LIM
    Steering: LL
    Doors: 4
    Engine: M30
    Displacement: 3.50
    Power: 0 (0 hp)
    Drive: HECK
    Transmission: AUT
    Paint code: 045 - ARCTISBLAU METALLIC
    Upholstery code: -
    Prod.date: 1985-11-29

    S240 Steering wheel, leather
    S301 Alarm system
    S320 Deleted, model lettering
    S350 Therm.insulat.glass green
    S401 Lift-up-and-slide-back sunroof, electric
    S421 FEUERLOESCHER 2 KG HALON
    S427 WARNDREIECK MIT HALTERUNG
    S440 non-smoker package
    S460 ELECTR.REAR SEAT ADJUSTMENT
    S494 Seat heating driver/passenger
    S500 Headl.washer system/intensive cleaning
    S534 Automatic air conditioning
    S915 Omission of outer-skin preservation
    S979 VELOURS-FUSSMATTEN VORN UND HI
    I make E23 parts.
    09/1983 745i (stolen spring '13 around Houston, TX Achatgruen on nutria buffalo. 8481080)
    10/1984 745i
    11/1984 745i
    11/1984 735i (10:1-265/6)
    Ford, MB, and GM round out the pack.



  7. #7
    Join Date
    Jan 2009
    Location
    Northern Jersey
    Posts
    50
    My Cars
    86 745i, 74 e9, 74 e3
    Thank you Sir.
    The car has a 059 ECU and fuel system harness installed from an an e28. Installed with the team 745i wastegate, boost control and performance chip. Also adjustable fuel pressure regulator.
    So it should be a richer mixture?
    All this was done by PO. So I’m not knowledgeable about the whole setup.
    John
    Last edited by JMinNJ; 11-29-2018 at 11:33 AM.

  8. #8
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,487
    My Cars
    1983/84/85 745i

    Thumbs up

    When was that 059 swap done? Any idea why? How is the EH trans still running, with a US TCU or somehow off a the 013?

    Todd at TCD has more knowledge than I do regarding tuning the 059 to run with a rising rate fuel pressure regulator and boost. It may have the wrong RRFPR on there, made for factory forced induction when it needs aftermarket FI. Just for example.
    I make E23 parts.
    09/1983 745i (stolen spring '13 around Houston, TX Achatgruen on nutria buffalo. 8481080)
    10/1984 745i
    11/1984 745i
    11/1984 735i (10:1-265/6)
    Ford, MB, and GM round out the pack.



  9. #9
    Join Date
    Jan 2009
    Location
    Northern Jersey
    Posts
    50
    My Cars
    86 745i, 74 e9, 74 e3
    059 ECU was installed over 10 years ago. Along with turbo upgrades. As I said, done by PO so I can’t say why. Car runs great, transmission operates as it should. I had the car looked at by a local BMW shop that does turbo work and they’re okay with it.

  10. #10
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,487
    My Cars
    1983/84/85 745i

    Thumbs up

    Trust me, they do not know a 745i like I do. No car should idle in the 11s when hot. It is terrible for the cylinder walls and bearings. Just trying to help, please do not take any of my info as negative.

    Hopefully that ASAP sheet helps the sale, now you know all the options installed at factory. PO must have added the spoiler and badge. Debadged cars are awesome. My 10/84 is a factory debadge too. Do you still have the key for that factory alarm, that is what the slot is for in the trunk. I can zip you a photo to see what it looks like.
    I make E23 parts.
    09/1983 745i (stolen spring '13 around Houston, TX Achatgruen on nutria buffalo. 8481080)
    10/1984 745i
    11/1984 745i
    11/1984 735i (10:1-265/6)
    Ford, MB, and GM round out the pack.



  11. #11
    Join Date
    Jul 2010
    Location
    Leland, NC
    Posts
    828
    My Cars
    85 €735i 08 550i/6
    Like Hit man says, you are running way too rich.

  12. #12
    Join Date
    Jan 2009
    Location
    Northern Jersey
    Posts
    50
    My Cars
    86 745i, 74 e9, 74 e3
    9DD8668F-8610-4B20-BC06-B604708074D5.jpg

    After a a few adjustments I have the AFM between 13 & 14:1 at idle at full operating temp. Went for a nice long test drive. No issues to report. Looking forward to the improved gas mileage. Thanks for the advise.
    John

  13. #13
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,487
    My Cars
    1983/84/85 745i

    Thumbs up

    Keep an eye on it during a high boost pull. Ideally it should be in the mid 12s on a stock compressor wheel, then taper more and more rich as the turbocharger cannot move enough air at high RPM so it runs rich.

    https://www.maxgms.com/collections/f...nt=37038563841 Bell changed name to MaxG recently, but they can help you dial that setup in properly. Even idling in the low to mid 13s is a vast improvement.

    Your bottom end will thank you running leaner. Less fuel dilution of the oil is less abrasive to the cylinder walls and bearings.

    Did you ever have a chance to upload those undercarriage shots?
    I make E23 parts.
    09/1983 745i (stolen spring '13 around Houston, TX Achatgruen on nutria buffalo. 8481080)
    10/1984 745i
    11/1984 745i
    11/1984 735i (10:1-265/6)
    Ford, MB, and GM round out the pack.



  14. #14
    Join Date
    Dec 2005
    Location
    Omaha NE
    Posts
    200
    My Cars
    84' 533i Turbo
    Subscribed for details.

  15. #15
    Join Date
    Apr 2015
    Location
    Italy
    Posts
    48
    My Cars
    1984 745i
    Hey my 4 gauge console!

    Did you buy this from me back in the day or did it come with your 7?

    Andre

  16. #16
    Join Date
    Jan 2009
    Location
    Northern Jersey
    Posts
    50
    My Cars
    86 745i, 74 e9, 74 e3
    9A46A8AB-7EF4-4AAC-8535-972806641ACF.jpg
    Installed by previous owner.
    Looks great, IMHO.
    Last edited by JMinNJ; 01-27-2019 at 05:39 PM.

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