Performance Modifications and Maintenance

E30s are wonderful cars to work on.  They have all the modern electronic equipment needed for emissions controls, yet are simple enough for a shadetree mechanic to do meaningful work on.  I've learned to do a lot of maintainance on my car, and below is a list of the things I've done -- both performance upgrades and standard maintainance.  Before delving into a project, make sure you have both the know-how and time to do it.  A Bentley manual, at $30 or so, is a great investment that will serve you in good stead on your wrenching adventures.
Replacing Washer Pump
Windshield washer not working?

Installing K&N Cone Filter

A racy sound with marginal performance improvements.

Upgrading Brake System

Reduce "mush" in the brake system, eliminate fade, and get ready for the track!

Replacing Timing Belt

Change your belt at least every 50,000 miles to avoid engine damage.

Replacing Spark Plugs

An easy, DIY weekend project.

New Tires

Hardwiring V1 Radar Locator

A slick installation for your V1.

Replacing Motronic Chip

The best "bang-for-the-buck" upgrade for an Eta!

Replacing Fog Lights

New Nebelscheinwerfern for those foggy nights.

Replacing Fuel Transfer Pump

A common E30 malady, easily remedied.

Turbulence Shield for K&N

Help your performance air filter increase your engine's performance!

Upgrading Headlamps

See better at night -- avoid Bambi!


Installing a shortshifter
Snick-snick!  Increase your tactile enjoyment with a BL/SS.

Brake Lining Light

How to troubleshoot and fix a faulty brake lining indicator circuit.

Suspension

Take those curves with more elan and control!

Driver's School Prep

Make sure your car is up for the rigors of a BMW CCA driver's school.

Water in Trunk

Fix a common E30 problem.

OBC Backlight

A DIY solution that'll save you up to $80.

Kick Panel Speakers

Better sound, made easy.

Supersprint Exhaust

A great sound, and perhaps some more power!

Transmission Fluid

It needs to be changed every Inspection II, but new fluid greatly improves shift feel!

E36 Steering Rack

An easy way to quicken up your steering ratio.

3.25 Limited Slip Differential

Another excellent "bang-for-the-buck" modification.

The Fluids I Run

Keep your car running its best with quality fluids, changed at appropriate intervals.