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BMW E30 DIY

BMW 3-Series
Technical Articles
(1983-1991)
(E30)

Welcome to our BMW technical articles section.  We've gathered a vast collection of useful articles to help you repair many items on your BMW.  Save money by avoiding your mechanic and perform the repairs using the information we've provided here.  Can't find what you're looking for?  Try our Search Engine, or hop over to our Technical Bulletin Board, and ask your question to the thousands of members who post messages there every day.

Jump to: Fuel Injection | Cooling System | Transmission | Brakes | Suspension | Electrical | Exterior | Interior | Exhaust | Miscellaneous | Performance

 Engine & Clutch
BMW Belt Replacement
Here's some short instructions on this very basic of maintenance tasks.
    
Applies to: All 4/6-cyl BMWs
BMW Oil Change
The most common task to do on your BMW - the 4-cylinder and 6-cylinder engines are covered here.
    
Applies to: All 4/6-cyl BMWs
3-Series Clutch Replacement
Our biggest and most comprehensive article yet.  From start to finish, all the instructions are here, along with about 70 photos too!
    
Applies to: All 3-Series BMWs
Clutch Slave Cylinder Replacement & Bleeding
Clutch pedal feeling spongy?  Try replacing your slave cylinder and rebleeding your system.
    
Applies to: All 3-Series BMWs
Valve Cover Seal Replacement
The valve covers on the BMW four and six cylinder engines are very prone to messy and annoying leaks.  The valve cover seal replacement is an easy task, as shown in this technical article.
    
Applies to: All BMWs
BMW Spark Plug Replacement
Spark plugs are an important part of your engine - make sure that they are replaced every 10,000 miles or so, to keep your ignition system running smoothly.
    
Applies to: All BMWs
BMW Camshaft Removal / Installation
Wayne has found a solution to the problem of how to remove your BMW camshafts without using the $1400 special factory tool.  Complete technical article here with all the info...
    
Applies to: All BMWs
Camshaft Timing & VANOS Unit Installation
Need to retime your cams?  VANOS unit need replacing?  Here's the details on timing your engine, and the install of this tricky unit.
    
Applies to: All 3-Series BMWs
Rod Bearings & Oil Pump Nut Replacement
If your engine has ever suffered from a loss of oil pressure, then the first thing you should do is replace your rod bearings.
    
Applies to: All 3-Series BMWs
Oil Pan Gasket Replacement
These gaskets often leak with age, and replacing them can be a messy job.  Find out the best way to get it done with as little frustration as possible here in this article.
    
Applies to: All 3-Series BMWs
E30 Timing Belt Replacement
One of the most important maintenance tasks for the six-cylinder E30 engines is the replacement of the rubber timing belt. Be sure to read this article, even if you will not be performing the job yourself.
    
Applies to: E30 3-Series BMWs with 6-cyl engines
Machine Shop 101
If you're considering a top-end rebuild then stop right there.  Read this first before you take any other steps towards having your cylinder head overhauled.
    
Applies to: All 3-Series BMWs
Crankshaft Position Sensor Replacement
Like the camshaft position sensor, you'll certainly want to replace this unit as soon as it fails.  Find out how by reading this article.
    
Applies to: All E36 3-Series BMWs
Head Gasket Replacement
Oh boy... a blown head gasket is never good news.  This project isn't for everybody, but if you're up for the task, be sure to follow the instructions here.
    
Applies to: All 3-Series BMWs
Turbos and Superchargers for Your BMW
We know you're curious about forced induction.  Find out what you need to know first if you're seriously considering this route.
    
Applies to: All 3-Series BMWs
BMW Engine Management Systems
If you're looking to squeeze the most performance out of your motor as you possibly can, then an Electromotive TEC3r system is certainly the way to go.
    
Applies to: All 3-Series BMWs
Time To Rebuild?
Wayne Dempsey outlays the tests and evaluations that you should perform on your engine before deciding it's time for a rebuild.
    
Applies to: All BMWs
Valve Adjustment Made Easy
Stop paying your mechanic to adjust your valves - it's really not that difficult.  Jared shows you how to on the 3-Series E30 six-cylinder engines.
    
Applies to: E30 six cylinder engines (1984-91)
Dyno Testing
Who isn't curious about how much power they're transferring to the wheels?  Learn about all the basics here before you strap your car onto a dyno for the first time.
    
Applies to: All BMWs
Ignition Troubleshooting Checklist
Mikko Kosonen has compiled a neat list for owners of all cars to check when they are experiencing problems with their ignition systems.
    
Applies to: Early carbureted BMWs
Ignition System Tune
     Applies to: E30 cylinder engines (1984-91)
 Cooling System
BMW Cooling System Flush & FAQ
Check it out - more than you ever wanted to know about your cooling system, why you need to maintain it regularly, and how to change that pesky coolant.
    
Applies to: All BMWs
BMW Thermostat Replacement
When replacing your water pump, you should also replace your thermostat as well.  Here's easy instructions on how to swap it out.
    
Applies to: All BMWs
BMW Water Pump Replacement
The old-style water pumps used plastic impellers that were prone to failure.  Replace yours now before it's too late.
    
Applies to: All BMWs
BMW Radiator Replacement
Got a pin-hole leak in your radiator?  Want to upgrade to a better cooling one?  It's pretty easy to remove and reinstall your radiator.
    
Applies to: All BMWs
Coolant Temp Sensor Replacement
     Applies to: E30 cylinder engines (1984-91)
 Fuel Injection
Fuel Filter Replacement
You should replace your fuel filter about every 10,000 miles or so.  This technical article shows you how to perform this relatively easy maintenance task.
    
Applies to: All BMW
DME Repair
Got some problems with your DME?  Want to know how to stop the horrible DME "flooding" problem on early E36s?  Check out this informative article.
    
Applies to: All BMW
DME Chip Upgrade
Want some more HP out of your car?  Try an inexpensive chip upgrade, and be on the road in 30 minutes with more performance.
    
Applies to: All BMW
E30 Chip Install
     Applies to: All E30 3-Series BMWs (1983-93)
Replacing the Fuel Pump & Fuel Level Sender
If your pump is noisy and loud, or the fuel pressure in the engine compartment is below what is needed for proper fuel injection operation, then itís probably time to replace it.
    
Applies to: All 3-Series BMWs
Installing a Performance Intake System
A properly designed cold air induction system can give your car a little boost in performance, but make sure you know what you're getting first by reading this article.
    
Applies to: All 3-Series BMWs
Oxygen Sensor Replacement E30
Gas mileage got you down?  Need to replace your O2 sensor, but are not exactly sure how?  Jared Fenton guides you through this relatively easy task.
    
Applies to: All BMWs (1984-1991)
All About Oxygen Sensors
Jared Fenton discusses the in and outs of oxygen sensors.
    
Applies to: All BMW
Reading Fault Codes on BMW Fuel Injection Systems
Check engine light on in your car?   Not sure how to fix it?  Use the techniques outlined in this article to figure out which problems are causing the light to come on.  See also Jared Fenton's write-up on reading fault codes.
    
Applies to: All BMWs (1984-2000)
Fuel Filter Replacement
     Applies to: All E30 3-Series BMWs (1983-93)
Fuel Injector Cleaning
     Applies to: All E30 3-Series BMWs (1983-93)
Idle Speed Troubleshooting
     Applies to: All E30 3-Series BMWs (1983-93)
Painting Your Intake Manifold
     Applies to: All E30 3-Series BMWs (1983-93)
 Suspension
Front Shock Replacement
E36 / E46 and later BMWs all have a similar procedure for the replacement of front shocks...
    
Applies to: All E30 3-Series BMWs (1983-93)
Rear Shock Replacement
Rear shocks are a bit easier than the fronts...
    
Applies to: All E30 3-Series BMWs (1983-93)
E30 Rear Sway Bar Bushing Replacement
Jared shows us how to stiffen up the rear suspension of your 1984-1991 3-Series BMW with the replacement of the rear sway bar bushings.
    
Applies to: All E30 3-Series BMWs (1983-93)
E30 Rear Sway Bar Drop Link Replacement
Learn how to replace this often-failing part with this handy article from Jared Fenton.
    
Applies to: All E30 3-Series BMWs (1983-93)
Front Springs and Shock Replacement
Pelican regular Jared Fenton shows us how easy it is to restore proper handling and how to lower your E30 3-Series BMW to boot!
    
Applies to: All E30 3-Series BMWs (1983-93)
Rear Springs and Shock Replacement
Jared finished up with part two of spring and shock replacement for the 1983-93 3-Series E30 cars.
    
Applies to: All E30 3-Series BMWs (1983-93)
Alignment on Your BMW
Any modification or repair made to your suspension system is bound to affect its alignment.  Even though it's still important to know a good alignment shop, learn how you might be able to align your car at home in this article.
    
Applies to: All 3-Series BMWs (1984-99)
Front Suspension Overhaul
Your shocks aren't the only parts of the suspension system that wear out.  Take the time to overhaul the entire front end carefully and you'll feel much better that you did so.  Really!
    
Applies to: All 3-Series BMWs (1984-99)
Installing a Strut Tower Brace
A strut tower brace links the top of the shock towers to insure that the towers do not bend when the chassis is flexing.  Find out more about how they work and which designs are best in this article.
    
Applies to: All 3-Series BMWs (1984-99)
Replacing Rear Shock Mounts
     Applies to: All 3-Series BMWs (1983-99)
Front Wheel Bearing Replacement
     Applies to: All E30 3-Series BMWs (1983-93)
Front Suspension Bushing Overhaul
     Applies to: All E30 3-Series BMWs (1983-93)
Motor Mount Replacement
     Applies to: All E30 3-Series BMWs (1983-93)
Rear Sway Bar Drop Link Replacement
     Applies to: All E30 3-Series BMWs (1983-93)
Rear Wheel Bearing Replacement
     Applies to: All E30 3-Series BMWs (1983-93)
 Transmission & Driveshaft
CV Joint, Boot, and Axle Replacement
Clunk!  Looks like it's time to replace your CV axles.  Find out what you need to know about the procedure here.
    
Applies to: All 3-Series BMWs
Transmission Removal
Getting to that clutch is no easy task, but it can definitely be done by the average home mechanic.  Following this step-by-step process, you can hardly go wrong.
    
Applies to: All 3-Series BMWs (1984-99)
Replacing Manual Transmission Fluid
One of the easiest tasks to perform on your BMW is to change the transmission or differential oil, but just in case you need a bit of guidance, be sure to read this article first.
    
Applies to: All 3-Series BMWs (1984-99)
Replacing Your Differential Fluid
     Applies to: All BMWs
Limited Slip Differential Swap (LSD)
     Applies to: All E30 3-Series BMWs (1983-93)
 Exterior
Blacking Out Your Chrome Trim
     Applies to: All BMWs
BMW Roundel Emblem Replacement
Jared Fenton shows you the really easy steps to improving the looks of your BMW, with the simple front or rear Roundel replacement.
    
Applies to: All BMWs
Replacing the Window Regulator and Motor
Have you gotten tired of having to open your door and get out to retrieve your burger at the drive thru window?  Well lucky for you, so have we.
    
Applies to: All E36 3-Series BMWs
Tire and Wheel Sizing
Putting the wrong size tires on your wheels can alter your speedometer readings and might not look right.
    
Applies to: All 3-Series BMWs (1983-99)
Using Car Bras & Car Film
Protect your paint by installing a car bra or car film the right way.
    
Applies to: All 3-Series BMWs (1983-99)
Personal Touches
Just some of the many things you can do to enhance the look of your BMW is illustrated in this article here.
    
Applies to: All 3-Series BMWs (1983-99)
Convertible Rear Window Replacement
Convertible rear windows are certainly one of the least resilient parts on the exterior of your BMW.  Learn how to replace it in just a few basic steps here.
    
Applies to: All 3-Series BMWs (1983-99)
Convertible Top Adjustment and Repair
The BMW convertible top is one of the most complicated systems on the car.  While some problems are easy to fix, others can definitely be a hassle.
    
Applies to: All 3-Series BMWs (1983-99)
Installing a Rear Spoiler
Some cars just look a lot better with spoilers, and the BMW 3-Series is one of them.
    
Applies to: All 3-Series BMWs (1983-99)
Replacing Hood Shocks
Are you getting tired of having your front or rear trunk lids fall on your head? Itís probably time to replace your hood shocks.
    
Applies to: All 3-Series BMWs (1983-99)
Concours Corner: Cleaning Your Engine, Part I
Need some tips on this seemingly daunting task?  Bev Frohm teaches the dos and don'ts of cleaning your engine in part one of this series.
    
Applies to: All BMWs
Concours Corner: Cleaning Your Engine, Part II
Part II covers more of the procedure in getting your engine to shine.
    
Applies to: All BMWs
Concours Corner: All About Bras
Once again, Bev offers up some suggestions and tips learned from experience with her concours winning 911.
    
Applies to: All BMWs
Concours Corner: Washing Your Car
Bev Frohm gives us some tips and tricks for washing your car in this article which is the first in a series.
    
Applies to: All BMWs
Concours Corner: Polishing Alloy Wheels
Bev Frohm offers up some tips and tricks for polishing and maintaining your Fuchs alloy wheels to a mirror finish.
    
Applies to: All BMWs
 Interior
Door Panels and Lock Troubleshooting
This article specifically targets the replacement of the door lock assembly, but because there are so many moving parts on the door, just about everything about the door panels is discussed as well.
    
Applies to: All 3-Series BMWs (1984-99)
Seat Removal & Sport Seat Installation
Considering a swap to M3 seats?  Or aftermarket sport seats, perhaps?  Learn how to do it right here.
    
Applies to: All 3-Series BMWs (1983-99)
Installing an Aftermarket Shift Knob
Not sure if you can do the install?   It's really easy - just check out these nstructions on the topic, and get it done in about a half an hour.  More information available here.
    
Applies to: All 3-Series BMWs (1983-99)
Concours Corner: Rubber Strip Conditioning
Ever wonder what to use on your precious rubber stripping?  Concours winner Bev Frohm gives us some suggestions for prolonging the life of your weatherstrip.
    
Applies to: All BMWs
 Electrical, Headlamps, and Gauges
Blinking Sidemarker Modification
     Applies to: All 1984-91 BMW 3-Series
On Board Computer (OBC) Converstion / Retrofit
Do you have an early BMW with only one OBC connector, but want to add one of the later-style computers?  Lars Staack has figured it out, and explains all in this guest technical article.
    
Applies to: All BMWs
BMW Euro Ellipsoid/Angel Eyes Installation
Your standard headlights might be up to snuff on most roads, but once you convert to ellipsoid style lighting, you'll wonder how you ever drove without them before.
    
Applies to: All 3-Series BMWs
Installing an HID Lighting System
If the Ellipsoids still aren't enough for you, learn about what the ultimate alternative is.
    
Applies to: All 1984-99 BMW 3-Series
Replacing Lenses and Bulbs
Broken lenses aren't just eyesores, but they can get you a ticket too.  Well, if they're broken, then you might as well replace them with something that looks a little better too!  Clear Euro-style lenses just might do the trick.
    
Applies to: All 1984-99 BMW 3-Series
Air Conditioning Maintenance & Upgrade
This article is not intended to be a repair manual for your A/C system, but to serve more as a guide on how the system works, and the maintenance involved with its upkeep.
    
Applies to: All 3-Series BMWs (1983-99)
Alternator Troubleshooting and Replacement
One of the nice things about the configuration of the BMW engine is the relative ease with which you can replace the alternator.
    
Applies to: All 3-Series BMWs (1983-99)
Troubleshooting Electrical Problems
One of the most common problems with older cars is the existence of intermittent and annoying electrical problems.  Learn how to troubleshoot them here before touching any wires.
    
Applies to: All 3-Series BMWs (1983-99)
Radio Head Unit Installation
Is your 10-year old radio head unit just not cutting it any more?.  Crank up the tunes with an aftermarket unit - the install procedure is documented here.
    
Applies to: All 1984-91 BMW 3-Series
Brake Pedal Switch Replacement
Have all your brake lights stopped working all of a sudden?  It's probably your brake pedal switch - replacement is a 30 minute job.
    
Applies to: All 1984-99 BMW 3-Series
Resetting the Airbag Warning Lamp (SRS)
Doing some electrical work on your car, and now all of a sudden, the air bag lamp is on?  This lamp is a huge pain - now there is an easy way to reset it!
    
Applies to: All 1984-91 BMW 3-Series
Installing a CD Changer
Find out which CD changers work with your factory stereo and learn how to install it correctly here!
    
Applies to: All 1984-99 BMW 3-Series
E30 Instrument Light Replacement
Burned out bulbs getting you down?  Find out how to replace them with this handy article.
    
Applies to: All 1984-91 BMW 3-Series
Installing Colored Gauge Faces
Tired of looking at your old dull gauges?  Spice them up with colored gauge faces - Also check out the E30-specific Gauge Face Replacement article.
    
Applies to: All 1984-99 BMW 3-Series
BMW Oil Service Light Reset
Jared Fenton shows you how to reset that annoying service light without taking your car to the dealer.
    
Applies to: All BMWs
Starter System Troubleshooting
Here's a great guest article by James K. Thorusen that describes in detail the problems and solutions for troubleshooting your starter system problems.
    
Applies to: All BMWs
Starter Replacement
Now that you've determined that the starter is bad, learn how to replace it without electrocuting yourself by reading this article here.
    
Applies to: All 1984-99 BMW 3-Series
VDO Gauge Repair and Refurbishment
This is a Pelican Technical Article covering the replacement of gauge faces, odometer repair, calibration checking, and module replacement.
    
Applies to: All BMWs
An Easy and Inexpensive Ignition Cut-Off Switch
Here's a little trick that will disable the ignition system on your car, preventing your pride and joy from being stolen.
    
Applies to: All BMWs with points ignition
VDO Clock Repair
Demick Boyden offers a neat little procedure for getting the tick back into your dashboard clock.
    
Applies to: All BMWs with mechanical clocks
VDO Clock Repair #2
If Demick's article on clock repair doesn't fix your clock, then you might want to try Mack Overman's tips and tricks...
    
Applies to: All BMWs with mechanical clocks
Replacing Service Indicator Board Batteries
     Applies to: All E30 3-Series BMWs (1983-93)
OBC Lamp Replacement
     Applies to: All E30 3-Series BMWs (1983-93)
 Exhaust & Climate Control
Air Conditioning Maintenance & Upgrade
This article is not intended to be a repair manual for your A/C system, but to serve more as a guide on how the system works, and the maintenance involved with its upkeep.
    
Applies to: All 3-Series BMWs (1983-99)
3-Series E30 AC Recharging
     Applies to: All 1984-91 BMW 3-Series
 Brakes
Brembo Big Brake Kit Upgrade
Need more brakes?  The Brembo kit is the top-dog in performance brakes.  Wayne R. Dempsey shows you how easy the installation can be.
    
Applies to: All BMW
Emergency Brake Adjustment
Is your e-brake not working too well?  Put it back into adjustment in less than 30 minutes.
    
Applies to: All BMW
Brake Pad Replacement
Want to know how to perform this relatively easy task and save some money at the same time?  Check out our step-by-step instructions on brake pad replacement.
    
Applies to: All BMW
E30 3-Series Parking Brake Adjustment
Can't pull that handle?  Learn how to adjust your parking brake once and for all, and keep your car from rolling down hill.
    
Applies to: All BMW 3-Series 1984-91
BMW E30 3-Series Cross-Drilled Brake Rotor Upgrade
Jared Fenton walks us through the process of upgrading your E30 to cross-drilled rotors for better braking.
    
Applies to: All BMW 3-Series 1984-91
Bleeding BMW Brakes
Another tricky process.  Here's a couple of hints and tips gathered from some good and bad experiences in brake bleeding.
    
Applies to: All BMWs
Parking Brake Shoe Replacement
The last time your car rolled down a hill should be the last time your car rolls down a hill. Replace those important brake shoes now before gravity gets the best of you one day.
    
Applies to: All 3-Series BMWs (1984-99)
Brake Line Replacement
Repeated heat cycling and fluid contamination will eventually cause the inside of the line to swell and the outside to crack.  You've been warned, so now it's time to take action.
    
Applies to: All 3-Series BMWs (1984-99)
Replacing Brake Discs
Stop! Yes, that's exactly what you want to do... but you can't always do so effectively if your brake rotors are worn too thin. Learn how to replace those old discs properly in this article here.
    
Applies to: All 3-Series BMWs (1984-99)
Rebuilding BMW Brake Calipers
Got a frozen caliper?  Learn how to rebuild those calipers the right way by following these simple steps.
    
Applies to: All BMWs
Rear Brake Disc Replacement
     Applies to: All E30 3-Series BMWs (1983-93)
Replacing Front Brake Discs
     Applies to: E30 3-Series BMWs
Painting your Calipers
Once you detail your calipers, no one will be able to tell the difference between your stock ones and the lobster claws of the big reds.
    
Applies to: All BMWs
 CarTech E30 Articles
Suspension Modifications
The E30 is a great-handling car and it doesnít take much to make it a fun weekend track toy, decent auto-crosser, or even competitive race car.
    
Applies to: E30 3-Series BMWs
Suspension Reinforcements
In the same way that bushing deflection and movement hurts handling, so does flex and movement in the chassis. Learn about it all here.
    
Applies to: E30 3-Series BMWs
Suspension Recipes
Looking for a hot setup? Take the mystery out of picking parts for your E30 suspension build and check out this article!
    
Applies to: E30 3-Series BMWs
Suspension Information
Get a brief overview of the E30 suspension and some common weaknesses to look out for.
    
Applies to: E30 3-Series BMWs
Bushings and Mounts
Before you start replacing everything, check out this article about the different bushing types and why you may want to mix and match them.
    
Applies to: E30 3-Series BMWs
Bumpers & Grilles
Ever wondered what the differences were between the U.S. and Euro-spec E30's, or want to swap on some nicer looking lights and bumpers? We've got you covered.
    
Applies to: E30 3-Series BMWs
Coilover Installation
Follow along as a stock suspension goes from "mild" to "wild" in this step-by-step process.
    
Applies to: E30 3-Series BMWs
Springs and Shocks
A set of lowering springs and decent shocks can make your E30 handle better than 90 percent of modern cars, but there are a few things to consider before you buy.
    
Applies to: E30 3-Series BMWs
Brake Modifications & Upgrades
We discuss improving your brake pedal feel, an E36 brake swap and improving the performance of your E30 brake system in this handy and informative article.
     Applies to: E30 3-Series BMWs
Sway Bars
What you need to know before swapping out the sway bars on your E30
    
Applies to: E30 3-Series BMWs
Steering Modifications
Do you know which BMW steering racks are compatible with the E30? I'll bet you'll be surprised.
    
Applies to: E30 3-Series BMWs
Trim Modifications
Is your trim turning a brown or purplish color? Learn about how to paint or replace it here.
    
Applies to: E30 3-Series BMWs
 Miscellaneous
Air Filter Replacement
New to working on your car?  Not sure where the air filter is?  Check out this simple article.
    
Applies to: All BMWs
BMW Designation FAQ
Confused about which models mean what?  What's an M50 motor?  What does the 'is' mean in your 325is?  Pelican's own Jared Fenton answers your questions in this handy reference FAQ.
    
Applies to: All BMWs
Stubborn Bolt/Stud Removal
We've all encountered the fastener that just won't budge.  Here are the basics (and last ditch efforts) about removing stubborn bolts or studs.
    
Applies to: All 3-Series BMWs (1983-99)
Front Speaker Installation
     Applies to: E30 3-Series BMWs
Rear Speaker Installation
     Applies to: All E30 3-Series BMWs (1983-93)
Tire Size Calculator
Ever wondered what the exact dimensions of tires are for your car?  Plug in the confusing tire size (ex. 215/60/16), and it will give you physical dimensions.
    
Applies to: All BMWs
AC Hydraulic DK13HLQ Jack Drop Speed Adjustment
The AC Hydraulic DK13HLQ is quite simply, the best floor jack we have ever used. Learn how its drop speed can be adjusted here.
    
Applies to: All BMWs
Hot Rodding Your Floor Jack
What can we say, Tom Sharpes has way too much time on his hands...
    
Applies to: All BMWs
Home Toe-in and Camber Adjustment
John Rogers offers a neat article with specs on adjusting your toe-in and camber with homemade tools.
    
Applies to: All BMWs
Street Dyno!
Recording the ignition spark pulses into a wave file and processing it using the software can give a pretty accurate HP/Torque rating for your engine.
    
Applies to: All BMWs
All About Gasoline
Here's a document that explains everything that you may have ever wanted to know about gasoline.  This covers everything from formulations, to smog tests, to octane ratings.
    
Applies to: All BMWs
Synthetic Oil or Not?
Think you're spending too much money on synthetics?  Check out this article, and make an informed decision.
    
Applies to: All BMWs
All About Motor Oils
Ever wondered about the formulations of motor oils?  This document explains the differences, and the formulations, and why which one is best for your car.
    
Applies to: All BMWs
Transmission Final Drive Computer
Here is a little program John Rogers wrote to do some speed vs RPM calculations after he did a rally a couple of months ago.  It's pretty fun to play around with.
    
Applies to: All BMWs
Building an In-Dash Air-Mixture Monitor
Gabriel Pennella offers a great article on building a monitor that you can use while driving to fine-tune your performance.
    
Applies to: All BMWs
MIG Welder Maladies & Bodywork Book Review
Kyle Ehler offers some advice on MIG Welders, and some opinions on some bodywork books.
    
Applies to: All BMWs
Welding Primer & Review
Many thanks to Mike Cooley and John Dunkle for writing this primer on welding.   Check it out if you're interested in learning more about 'the black art of welding.
    
Applies to: All BMWs
Got more questions?  Join us in our BMW Technical Forum Message Board, and ask a question to one of our many automotive experts.
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