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2003 BMW 330Ci Base Convertible
BMW Home > 2003 BMW 330Ci Base Convertible > ElectricalSwitches, Motors, Relays, Fuses & Wiring 

Switches, Motors, Relays, Fuses & Wiring

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HVAC Motors, Relays, and Switches

If your HVAC motors stop working the relays and switches should be the first place you check. Don't start replacing expensive components without first checking your relays and switches.
HVAC Pressure Switch

Blower Motor Assembly

Convertible Top Motors and Switches

Power convertibles tops are run by motors. If yours is starting to run slow or not at all, Pelican has what you need to get everything working like new.

Convertible Flap Motor - Convertible Top Cover Flap

One-Touch Roof Top Controls
Imagine being able open your convertible top using your existing key fob!
SmartTOP Features:
  • Comfortable One-Touch function: A short push on a button operates the roof automatically
  • Enables operation of the roof while the vehicle is moving at slow speeds (max 25mph) - Adds convenient one-touch if the roof already operates up to 30mph by factory default
  • No need to stop and pull the handbrake
  • Secure speed control mechanism automatically locks the roof against operation at higher speeds
  • Allows full operation of the back triangle windows (which are usually locked when the top is open)
  • Comes with a full plug-n-play wiring adapter, allowing a quick and painless install of the SmartTop module.
  • Even with a broken e-brake signaling switch (which will inhibit roof-operation permanently in the original condition) the smartTOP controller will work just fine. The switch does not need to be replaced.
  • Most SmartTOP modules come with a standard USB port to allow quick and easy configuration of all options, as well as online firmware updates.

Wiring Harnesses

Older cars are notorious for electrical problems and most of them can be traced to the wiring harness. A wiring harness is a series or bundle of wires used to send electronic signals to and from electrical devices. They are usually wrapped in tape, conduit or cable ties. They get old, dry and brittle. If you are having problems it is best to replace whole sections of the harness rather than individual wires.
Engine Harness
Hatch Harness


One of your horns broken or not working properly? Does your car sound like a sick cow, rather than a sleek machine? Replace your horn with a brand new one, and let the sound of your car match its looks.

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Browse Switches, Motors, Relays, Fuses & Wiring for all 3-Series E46 (1999-2006) vehicles

Page last updated: Wed 12/13/2017 02:07:38 AM
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