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 W447 Steering Column Cluster Switch Cruise Control Stalk A2469004120

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Mercedes Vito Viano W639 Headlight Switch Unit Button Knob A6395450204

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Mercedes W205 W213 USB SD Card Port Multimedia Connector Unit A2138200401

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Steering Column Switch Mercedes W204 Cluster Wiper Stalk Slip A2049000304

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Steering Column Switch Mercedes W204 Cluster Wiper Stalk Slip A2049000304

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Mercedes SLK R172 Steering Wheel Contact Plate Shift Paddles A2184640817

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Mercedes W205 Window Lifter Switch Front Driver Side Control Panel A2139050000

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Mercedes W169 W245 Driver Side Front Window Switch Button A1698206710

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Mercedes W639 Electric Sliding Roof Button Switch A6395452607

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Mercedes Vito W639 Switch Panel Dash Dashboard Hazard Lock ASR Button A639545107

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Mercedes W205 Touch Pad Console Switch Panel Touchpad Controller A2059001934

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Mercedes CLK W203 C209 Turn Signal Light Wiper Stalk Switch A2035450110

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Cruise Control Stalk Mercedes W203 W639 Tempomat Switch Unit A2035450224

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Ignition Switch Mercedes W204 Lock Control Unit Module A2075450108

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

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Mercedes CLK W209 Steering Wheel Angle Sensor Slip Ring Squib A2094640618

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Mercedes W211 Dashboard Switch Panel Strip Seat Heater A2118218558

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Mercedes W204 Window Switch Driver's Side Door Button Regulation A2048703558

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Mercedes-Benz C-Class W203 Center Hazard Control Switch Panel ESP A2038209310

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Mercedes-Benz C-Class W203 Steering Wiper Control Indicator Stalk A2035450310

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

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Window Lifter Switch Mercedes W204 W212 Mirror Control Driver's Side A2049055302

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Mercedes SLK R172 Air Conditioning Heater Control Switch Panel A1729004204

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Mercedes W205 Touch Pad Console Switch Panel Touchpad Controller A2059008726

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Mercedes W447 Steering Column Cluster Switch Wiper Stalk Squib A2469004120

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Mercedes W209 Seat Switch Lumbar Adjustment Front Left N/S A2098000178

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Mercedes W639 Switch Panel Dash Dashboard Hazard Lock ASR Button A6395454507

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Mercedes-Benz S W221 Switch Parking Brake Release Handbrake Button A2215401445

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Mercedes W203 W209 W639 Hazard Light Switch Center Console A2038703310

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Mercedes ML W164 Suspension Control Switch Button Panel A1648707310

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Mercedes W205 C253 W447 Window Lifter Switch Regulation Front Door A2059051513

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Mercedes M W164 Button Locking Door Switch Black Right A2518201010

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Mercedes W212 Steering Column Switch Wiper Stalk Cruise Control A2129000801

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Mercedes R171 Seat Switch Heater Hazard ESP Panel Control Unit Front A1718208010

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Mercedes W176 M133 Steering Column Switch Cluster Wiper Stalk Squib A2469003920

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Mercedes W212 Key Reader Ignition Lock Remote Control Unit Module A2129056601

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Switch Panel Mercedes W213 S213 Centre Console Clock Hazard Radio A2139054603

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Steering Wheel Switch Mercedes W176 W204 Multifunction Button Trim A1725400262

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Mercedes-Benz C E W202 W210 Anti Theft Towing Protection Switch A2108201710

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Air Con Panel Mercedes W447 Heating Ventilation A/C Control Panel A4479005406

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Steering Wheel Switch Mercedes W176 W204 W212 Multifunction Buttons A2185400162

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Mercedes Vito Viano W639 Headlight Switch Unit Button Knob A6395450604

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Mercedes W221 Seat Switch Panel Adjust Control Unit Rear Right A2218700179

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Mercedes W177 Switch Cluster Steering Column Wiper Stalk Slip Squib A1779003205

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Mercedes W202 W210 Cruise Control Stalk Switch A2085450424

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Mercedes W164 Cruise Control Gear Selector Stalk Switch A1644400101

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Mercedes-Benz A-Class W168 1 Rear Window Lifter Control Switch A2108208210

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Mercedes Vito W447 Steering Column Cluster Switch Wiper Stalk A2469004120

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Hazard Switch Mercedes W176 W246 Centre Console ECO Button Panel A2469051201

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Switch Module Mercedes C238 Steering Column Wheel Automatic Gearbox A2139002823

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Switch Mercedes C238 Center Console Left Panel ESP Suspension Control

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Mercedes W168 W202 W210 Steering Angle Sensor Slip Ring Squib A0025426518

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Mercedes ML W163 Centre Console Window Mirror Control Switch A1638207210

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Mercedes W169 W245 W203 Steering Angle Sensor Slip Ring Squib A1694640818

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Mercedes Sprinter W906 Electric Window Regulator Driver Side Switch A9065451513

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Mercedes W204 Key Reader Ignition Lock Remote Control Unit Module A2079057101

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Mercedes W204 Headlight Light Switch Control Unit Button A2045453004

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Mercedes W212 Seat Heating Hazard Parktronic Control Switch Unit A2129052401

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Mercedes R172 Steering Wheel Switch Multifunction Button Trim A1725400362

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Mercedes W205 X253 Console Switch Panel Sat Navigation Controller A2059005915

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Mercedes SLK R171 AC Air Conditioning Climate Control Switch Panel A1718302385

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Switch Panel Mercedes W205 Centre Console Radio Hazard Lights Switch A2059056411

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Start Stop Switch Mercedes W177 W247 W907 Engine Button Unit A1779051001

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Switch Panel Mercedes W205 C238 Centre Console Clock Switch A2138272000

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Mercedes W221 Combi Switch Combination Switch Driver Stalk Squib A2219001802

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Mercedes W221 Combi Switch Combination Switch Driver Stalk Squib A2219001802

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Seat Switch Mercedes W212 W218 Regulation Adjust Door Front Left N/S A2129050251

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Mercedes W176 Steering Column Switch Cluster Wiper Stalk Automatic A2469004208

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Mercedes W204 Centre Console Switch Control Unit Seat Heating Button A2049059802

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Mercedes C207 Steering Column Switch Cluster Wiper Indicator Stalk A2129008523

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Trunk Lid Button Mercedes W213 W217 Tailgate Switch Block A2229055111

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Mercedes Vito W447 USB Port Socket Adapter Plug Connector Unit A4478200902

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Heater Matrix Flap Control Mercedes W176 W246 C117 Flap Motor Unit CZ113930-0856

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Mercedes W168 Immobilizer Control Unit Module ECU A1688200426

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Mercedes Vito W639 Window Switch Regulator Control Panel Electric A6395450713

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Mercedes S205 Steering Column Switch Module Combi Switch Stalk A2059007119

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Mercedes-Benz A B W169 W245 Ignition Switch Lock Control Module A1695451508

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Mercedes V251 Air Conditioning Climate Control A/C Switch Panel A2519063300

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Mercedes Vito Viano W639 Brake Pedal Switch Stop Reverse Light A0015459609

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Handbrake Switch Mercedes W213 S213 Electric Parking Brake Button A2139053803

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Window Switch Button Mercedes C209 W209 Driver Side Front A2098203410

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