What actually is a BMW E46? Learning what a chassis code will likely to be the initial step in grasping the term E46. The E-code identification was born with the E3 in 1968. The sedan was the E3 and the 2-door was the E9 The factory has this terminology to reference the different designs. The identical design can be used for a handful of years without actually upgrading the style of the car.
BMW will create the same car for a number of years with little change. This enables the very same parts to fits many years to save costs. Look at the E46 for example. In 1998 production began in the 4-door version and 1999 as the 2-door version. Production went on for the sedan until 05 and 06 for the coupe and M3. By and large, all of these cars were the same and most parts are shared.
With the exception of the alternate engines and the specific parts that complement them, the BMW E46 shares many other ordinary parts. Things like the suspension or dash for instance are the same throughout each model aside from the enhanced suspension on the Sport package and m3 variations. Except for the M3 or sport package, 70% of the full 3-series made from 1998-2005 has totally exchangeable suspension. They contain the the same exact control arms, bushings and tie rods.
This holds true to options like the climate control, entertainment, lighting and similar options. The AC evaporator is the same on a 1999 323i as it is on a 2005 M3. The same goes for the window regulator and belt tensioner. In addition, body parts straddle a handful of years, particularly hoods and fenders. These differ along with the doors on the 2-doors models. Various components fit all versions but alternate years such as the bumpers. They may fit coupe and 4-door versions but only in select years.
There's little change in the safety and control mechanisms. Besides software upgrades, most computer modules have stayed the same most notably units like the ABS controller or Airbag controller. It is relatively common for a part to be redesigned mid way throughout production and after that added to recent versions. This is regarded as superceding.
Superseding parts is a good idea when you have an excessive failure rate. A component that has been superceded repeatedly is the steering pressure pump. A large amount of internal problems have brought the engineers at BMW to revise it nearly 12 times. The original versions were too light to overcome the demands of the steering mechanism and could get too hot on account of lack of fluid transferred over the interior blade. The most common parts swapped within the E46 are cooling mechanisms. Once you obtain an E46, you may well exchange a water pump and thermostat housing at minimum once. The hard plastic cooling components such as the expansion reservoir and radiator come to be breakable with age and usually leak.
A lot of components, for example the E46 323ci OE air filter have not been updated. Aside from a couple of other parts, the BMW E46 is very dependable and potentially amongst the finest automobiles BMW has ever manufactured. Its impressive styling and pleasure to operate result in the E46 BMW among the most popular BMW's of all time.