BMW 3-Series E46 Electric Fan Kit 1999-2006

  1. BMW 3-Series E46 Electric Fan R&D, Part 2: Prototype Testing

    BMW 3-Series E46 Electric Fan R&D, Part 2: Prototype Testing

    Interested in picking up this awesome E46 fan setup? Check out our discounted pre-sale linked below!

    Mishimoto BMW E46 Non-M Performance Fan Shroud Kit Pre-Sale

    Functional Prototype

    In a short timespan we were able to turn our 3D models into an actual functional prototype. Check out a couple images of our first BMW E46 fan shroud!

    Mishimoto prototype E46 parts
    Mishimoto prototype E46 parts

    Mishimoto prototype E46 parts
    Mishimoto prototype E46 parts

    As previously noted, we are using our 16" electric slim fan with this kit. This fan produces 1,850 CFM of air and has been used successfully in both our E46 M3 and E36 electric fan kits.

    Mishimoto prototype E46 parts
    Mishimoto prototype E46 parts

    Quite a sleek design!

    Product Testing

    The at-speed benefits of this shroud are undeniable, but we still need to conduct idle testing to ensure that our electric fan is up to the task of cooling the E46. To do so, we set up a long-duration idle test to evaluate the performance of our electric fan against the stock unit.

    Testing Conditions

    • Engine at Idle
    • Hood closed to replicate on-road conditions
    Continue Reading »
  2. BMW 3-Series E46 Electric Fan R&D, Part 1: Stock Components and Initial Design

    BMW 3-Series E46 Electric Fan R&D, Part 1: Stock Components and Initial Design

    Interested in picking up this awesome E46 fan setup? Check out our discounted pre-sale linked below!

    Mishimoto BMW E46 Non-M Performance Fan Shroud Kit Pre-Sale

    Our E46 product line continues to grow. This series of articles aims to tack another offering on our list of performance cooling components. We've covered the radiator, expansion tank, and coolant hoses. The only radiator-related item left to tackle is a cooling fan solution.

    The stock 3-Series E46 offers two different fan options. Automatic models are equipped with an antiquated mechanical fan, while those who row their own gears get an electric fan.

    Our goal with this project is to produce a BMW E46 fan shroud solution that will function with either a manual or automatic model. We will be following our trend of successfully producing exo-style shrouds for the E46 M3 and E36 chasses. The idea behind this fan mount style is to produce greater airflow through the radiator core during at-speed driving. The reduced restriction (compared

    Continue Reading »