E30
Contents
History
The E30 replaced the E21 as BMW's Three Series car in 1981, and was the basis for the original M3.
If it was made by Carlsberg, they'd say it's probably the best car in the world. As it's made by BMW we know it IS the best car in the world.
Technical
Like any BMW, the E30 is a complex precision machine, precision-built and designed to last. But even the simplest of machines needs maintenance occasionally, so keep your E30 running the way it should, it helps to familiarise yourself with the design, and the components. The Technical section of the E30 Zone Wiki is your one-stop source for maintenance tips, common problems, upgrades and troubleshooting.
Your E30 is broken down into separate sections, to help you understand each part in turn.
Engines
- Main article: Engines
Drivetrain
Gearbox
- Main article: Gearbox
Differential
- Main article: Differential
When upgrading your engine, upgrading your differential at the same time is almost mandatory.
Brakes
- Main article: Brakes
While moving in the E30 is an utterly delight, the need to stop moving is sometimes necessary. For that reason, the E30 was fitted with front discs on all models. The smaller-powered 316 and 318 saloons were fitted with rear drum brakes, while all six-cylinder models and Tourings had rear discs as standard.
Suspension
- Main article: Suspension
All E30s are fitted with McPherson struts for front suspension, bolting up to a single control arm at the bottom. This is reinforced by an anti-roll bar connecting the control arm to the front subframe. The rear wheels have independent suspension of springs and shocks, and are connected to the rear subframe via trailing arms. Another anti-roll bar clamps the trailing arms to the body.
Steering
- Main article: Steering
Body Styles and Fittings
- Main article: Bodywork
Electrical
- Main article: Electrics
