What is the construction and purpose of switches, controls, and ignition locks?

Switches, controls, and ignition locks are parts responsible for transmitting commands to the car's electrical and mechanical systems. A typical component consists of a housing, contacts, a connector, a button, a knob, or an ignition barrel, depending on the application. These parts are mounted in the vehicle cabin, most often at the steering column, on the dashboard, in the doors, or in the center console. Their task is to provide convenient and precise control of car functions.

What are switches, controls, and ignition locks used for?

Switches, controls, and ignition locks are used to operate lights, wipers, windows, mirrors, locks, heating, and to start the ignition. They are responsible for transmitting a signal to the appropriate module or receiver, so their efficiency directly affects driving comfort and safety. In the case of the ignition lock, cooperation with the steering lock, immobilizer, and starting system is also important.

What role does the control signal play in the operation of these components?

A control signal is information transmitted after activating a button, switch, or ignition lock. It is used to turn on, turn off, or change the operating mode of a specific vehicle system, for example, lights or windows. In practice, its correct transmission depends on the condition of the contacts, connector, wiring harness, and the part's compatibility with the car's electronics. Even slight wear on pins or the mechanism can cause intermittent function operation.

How to choose a switch or ignition lock for a specific car?

It is best to compare the OEM part number, interchangeable numbers, vehicle placement, and equipment version. It is also worth checking the transmission type if the component works with a specific locking system or control panel. For door and console elements, color, mounting side, and button layout are also important.

What symptoms indicate wear of switches, controls, or ignition locks?

Typical symptoms include no response when pressed, intermittent operation, mechanism sticking, lack of backlighting, or play in the button or knob. In the ignition lock, there may be difficulties turning the key, problems with the ignition position, or incorrect steering column unlocking. Such signals should be compared with the condition of the connectors and housing before purchasing a replacement part.

What should be checked before installing a used control element?

Before installation, it is good to assess the condition of the clips, pins, housing, and button surfaces, and compare the part with the old element. Check if the mounting points, plug type, and functions supported by the module match. For parts from door panels or consoles, ensure the element matches the interior trim and cooperating components.

Switches & Controls

At Global Parts automotive store we offer a wide selection of original used car parts including switches, controls and ignitions for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen and others. The switches, controls and ignitions we offer undergo quality control so that you can be sure that you are getting a top-class product.

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Mercedes A C Class W169 W203 Steering Angle Sensor Slip Ring Squib A1694640618

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Steering Wheel Switch Mercedes R171 W203 Multifunction Right O/S A1718209610

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Switch Module Mercedes C238 Steering Column Wheel Automatic Gearbox A2139002823

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Mercedes W212 Headlight Switch Unit Button A2129051900

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Mercedes W639 W636 Dashboard Switch Right DVD OFF Entertaiment A6396890939

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Steering Wheel Cluster Mercedes R171 W211 Indicator Wiper Switch A1714640518

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Window Lifter Switch Mercedes W204 W207 W212 Driver's Side Auto Dip A2128208310

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Mercedes Vito Viano W639 Sliding Door Electric Switch Button A6398200410

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Mercedes W205 Touch Pad Console Switch Panel Touchpad Controller A2059008918

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Mercedes A-Class W169 Steering Wheel Angle Sensor Slip Ring Squib A1694641518

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Trunk Switch Mercedes S212 ML W164 Control Button Tailgate Trunk Lid A2118219551

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Mercedes W177 Switch Cluster Steering Column Wiper Stalk Slip Squib A1779003305

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Mercedes W203 Driver Side Front Window Switch Button A2038210679

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Window Switch Button Mercedes C209 W209 Driver Side Front A2098203410

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Mercedes W169 W245 Driver Side Front Window Switch Button A1698206710

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Mercedes W639 Cruise Control Switch Stalk Voice Control System A6395450824

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Remote Key Mercedes W639 Vito Viano Radio Alarm Fob Button A6397662106

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Mercedes W177 Touch Pad Centre Console Switch Panel Touchpad Unit A2479003903

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Mercedes W212 Key Reader Ignition Lock Remote Control Unit Module A2129056601

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Start Stop Switch Mercedes W176 W204 W212 W218 Engine Button Unit A2215450714

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Mercedes W204 Navigation Switch Comand Multifunction Knob Button A2048700579

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Steering Slip Mercedes W212 Wheel Ring Airbag Switch Indicator A2129008602

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Mercedes CLS C219 Front Seat Switch Right O/S Panel Adjustment A2198700210

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Steering Stalk Mercedes W164 W251 Wiper Indicator Cruise Switch A1645458716

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Mercedes W251 Navigation Media Head Unit Radio Sat Nav Remote A2518705094

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Headlight Switch Mercedes Vito Viano W639 Button Knob Unit A6399050000

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Window Lifter Switch Mercedes Sprinter W907 Passenger Door Switch A9079050504

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Mercedes Sprinter W907 W910 Steering Column Tube Slip Switch Stalk A9079001105

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Mercedes-Benz Vito Viano W639 Headlight Switch Unit Button A6395450204

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Mercedes-Benz Vito Viano W639 Radio Remote Alarm Key Fob Button A6397660106

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Mercedes W169 W245 Dash Dashboard Switch Panel Heated Seats PDC A1698702010

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Mercedes C238 Window Switch Mirror Adjustment Front Driver Side A2139055103

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Mercedes SLK R171 Power Window Lifter Switch Front Door Regulation A1718205410

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Mercedes W203 Steering Wheel Angle Sensor Slip Ring Squib A0004640618

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Mercedes Vito W447 Dashboard Hazard Lights Panel Switch Black A4479050051

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Mercedes W204 Navigation Switch Controller Multifunction Knob Button A2048707458

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Mercedes W203 C209 Indicator Wiper Stalk Switch A0005452310

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Mercedes W176 W204 W212 Steering Wheel Switch Multifunction Buttons A2185400162

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Mercedes-Benz C-Class W203 W204 1 Radio Remote Alarm Key Fob Button A2049051704

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Mercedes W164 R171 W211 C219 Steering Wheel Slip Squib Ring A1645458716

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Mercedes W204 Headlight Light Switch Control Unit Button A2045453004

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Mercedes Sprinter W907 Steering Wheel Switch Panel Multifunction A9079057804

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Mercedes Sprinter W907 Steering Wheel Panel Cover Trim A9079057804

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Cruise Control Stalk Mercedes W203 CLK C209 Tempomat Switch Unit A0085452724

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Mercedes A B Class W169 W245 Ignition Switch Lock Control Module A1695452308

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Mercedes W205 Switch Block Control Unit PDC Parktronic Camera Panel A2059058509

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Mercedes W176 Steering Column Cluster Switch Wipers Indicators Cruise Control

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Mercedes W205 Steering Column Switch Wiper Stalk Cruise Control Automatic

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Parking Brake Switch Mercedes W205 Hanbrake Relase A2059051516

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Mercedes-Benz E-Class W207 Comand Sat Nav Navigation Switch Controller Knob

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Mercedes-Benz Vito Viano W639 Steering Wheel Slip Ring Airbag Squib A6394640218

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Mercedes W169 W245 Cruise Control Switch Stalk Indicator Lever A1695450004

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Mercedes C292 Seat Adjustment Switch Front Left N/S Memory Button A1669058100

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Mercedes W204 W212 Switch Panel Right O/S Adjustable Electric Seat Memory Unit

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Mercedes GLE C292 Coupe Window Switch Rear Door Left Right N/O/S A2929054800

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Shift Paddle Mercedes W204 W212 Steering Wheel Right O/S Higher Gear A2185400762

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Steering Column Switch Mercedes W211 C219 Angle Sensor Indicator Cruise Control

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Mercedes S205 Estate GLC C253 Seat Release Backrest Switch Left N/S A2059056611

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Door Switch Mercedes W204 C207 Seat Regulation Front Left N/S A2048708910

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Mercedes W221 Window Lifter Switch Driver's Side Mirror Control A2218214951

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Mercedes W639 Switch Panel Dash Dashboard Hazard Lock ASR Button A6395454507

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Mercedes W205 Steering Column Switch Module Wipers Indicator Cruise Control Auto

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Mercedes W176 W246 Steering Column Switch Cluster Wiper Stalk Slip A2469001011

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Mercedes W177 Remote Key Radio Alarm Fob Button A1779051303

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