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1985 BMW 6-Series CSI

Make: BMW
Model: 6-Series
Type: Coupe
Trim: CSI
Year: 1985
Mileage: 1
VIN: WBAEC7409F0606063
Color: Silver
Engine: 3.4L Gas I6
Cylinders: 6
Fuel: gasoline
Drive type: RWD
Vehicle Title: Clean
Item location: Collierville, Tennessee, United States
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Description of 1985 BMW 6-Series CSI

1985 BMW 6-Series 635CSI.


5 speed manual transmission.

3.4 Inline 6 Cylinder

Mileage– Unknown – odometer frozen at 111k.


Turbo Charged– Precision 5931E Turbo:

  • MFS(Machined From Solid) 59mm inducer compressor wheel

  • "E"compressor cover 3.0" inlet/2.0" outlet

  • 57mm exducer T31, 76 trim turbine wheel

  • Turbine housing options:

  • -Buick .63 A/R

  • -T3 .63 A/R with 5 bolt discharge

  • -360 journal bearing system

  • Manual boost controller - set at 5 lbs. for testing.

ECU - Electronic Ignition and EFI replaced with AEM Infnity 308 (30-7113) ECU allowing for boost support:

  • Fully programmable with plug and play Infinity Tuner software via PC / USB connection. Free to download and connect to ECU.

  • Upgraded fuel injectors. Batch fuel ECU setup currently.

  • Sequential spark setup with Accel 140040 super coils.

  • Glovebox mounted ECU, keeping it out of the heat and weather.

  • Crank Timing - BMW E30 crank wheel (60/2) used for crank timing.

  • Cam Timing - Distributor was re-purposed as a Cam timing with hall sensor and steel rotor added.

  • GM sensors for MAP, Air and water temp added for ECU enabling.

  • AEM O2 AFR sensor / gauge output used for AFR ECU input.

  • Boost Gauge and AFR gauge added to driver side a pillar.

  • Custom wiring harness.

Car is in decent shape. Definite 40' appeal. Up closer you will notice the previous sub par paint job. Also, previous repairs were not the best and it has a few chips, peeling spots and will need some body work. (see pics). Minimal rust present on the car. Interior was redone with some areas converted to diamond stitched suede. The red accents on doors and headliner are not bad, once you get over the initial burst of color. All body paint and interior was as I bought the car in 2017. The front lower valence was a fiberglass added on nightmare when I got the car. I replaced it with a custom one-off that fits and looks nice, albeit a non BMW item. Won't find another car with it. I also performed some rear valance straightening and painting. The wheels are experiencing some pitting but still look decent. (see pics). No A/C, as the compressor and condenser coil were removed by previous owner. It is not currently inter-cooled and is running direct intake during setup and tuning. I have some tubing and inter-cooler that will ship with the car. Car runs and drives as is, so it can be enjoyed as you finish up the project. See more details below that were based on a previous owners work / description.

As time allowed, I have performed the engine work and tuning thus far. Engine starts and runs / drives fine. Some tuning is still under way as that is always a challenge. Fun part is you can tune everything about it. Known issues are : Steering pull in some situations likely from alignment / worn bushings. Not a very expensive item, but is more laborious to fix. Some seeping / leaking around the steering pump. Weather seals are showing signs of dry rot and crackling in a few places. Electric seats – only driver's works.

Money and time have not allowed me to pursue things further. This will be a great project car for someone to take down the final stretch. I won't mention how much I have invested, but suffices to say, tons more than the reserve price.

Being a used / older car, it is priced as is, where is. No implied or explicit warranty. It is available for pickup in Collierville, TN (38017). I can help get it loaded on any shipping you might arrange.

Items below were noted by a previous owner. I cannot confirm comments and expenses stated, but most all items mentioned appear to be present on the car. Believed to be from 2015 or 2016:

{ENGINE M30B34 rebuild 110000 mile, new gaskets all across the top and bottom, new starter, alternator, battery, water pump, tcp,o2 sensor,all sensors,spark plug wires and plugs, distributor cap and rotor, vaccum hoses, intake boot, icv, cold air k&N filter.computer upgraded chip to dinan. rebuild about 1300 miles ago compression tested all across 6 cylniders 7.4 bars on average SPENT $2000 ON PARTS ALONE

TRANSMISSION 5 SPEED MANUAL 265 GETRAG DOGLED short shifter and new sach clutch$600 PARTS

SUSPENSION all new control arms and bushings and tie rods, sway links, sway bar, bilstien sports shocks and H&R sport springs 1 inch lowering. $1800

BRAKES cross drilled rotors and ceramic brakes $300

EXHAUST 3 inch single pipe with magnaflow mid muffler and magnaflow muffler with dual tips $500

BODY all factory, 2 small dents, NO RUST any where, front air dam spoiler is not in great condition its craked. rear spoiler is not painted, all rubber pieces all there and in great condition. looks like car was repainted about 10 years ago in same color.

HEADLIGHTS hid xinon with bi-xinon high beam and low beam, xinon rally fog lights $450

INTERIOR, crack free dash board, interior is done in red alcantara SPA (ferrari f50 suede) bough in italy and brough it here to usa, pleather side bolsters and rear seats front seats are 10 botton sports seat, alcantara wrapped steering wheel. red suede headliner. realy confortable interior $1500SOUND SYSTEM JBL SUB, 6 SPEACKERS 2 FRONT 2 SIDE AND 2 REAR, 2 AMPS PIONEER FOR SUB AND ROCKFORD 4CH AND CHEAP HEADUNIT( TEMP BECAUSE I COULDNOT DECIDE ON THE HEADUNIT)$750

WHEELS AND TIRES 17 INCH AC SCHNITZER CHROME}

Bid now, at this low reserve it will likely sell Fast!