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 W203 C209 Indicator Wiper Stalk Switch A0005452310

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Mercedes Vito Viano W639 Headlight Switch Button Knob Unit A6399050000

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Panel Mercedes W251 Air Conditioning Heater Blower Control Panel A2518703490

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USB Port Mercedes W176 W207 W212 W246 Socket Plug Connector Unit A1728202826

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Mercedes SLK R172 Window Lifter Wing Switch Front Driver Side Panel A1729057100

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Mercedes Vito W639 Switch Panel Dash Hazard ASR Locking Wiper Button A6395455207

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

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Mercedes W447 Steering Column Cluster Switch Cruise Control Stalk A2469004120

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

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Mercedes W210 Center Console Lower Windows Mirror Switch Panel A2108211051

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Mercedes W205 W213 C238 Centre Console Dashboard Clock A2138272000

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Mercedes W205 C253 Steering Wheel Switches Multifunction Button A0999050200

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Switch Panel Mercedes W202 W210 Centre Console Window Control Button A2108213951

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Contact Plate Mercedes W204 W212 Steering Wheel Module Shift Paddles A2184640117

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Mercedes W212 Radio Control Function Button Knob Controller Unit A2128701351

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Mercedes ML W163 Centre Console Window Mirror Control Switch A1638207210

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Mercedes Vito W639 Switch Control Panel Hazard ASR Locking Button A6395455207

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Steering Column Switch Mercedes W207 W212 Cluster Wiper Stalk Slip A2129006031

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Mercedes W221 Switch Controller Panel Comand Sat Nav Navigation A2219054500

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Mercedes Vito Viano W639 Headlight Switch Unit Button Knob A6395450204

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Mercedes W205 Bootlid Trunk Hatch Release Button Control Switch A2059051718

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Mercedes C238 A238 Seat Heating Control Switch Button Right O/S A2139050804

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Mercedes C117 Steering Column Switch Cluster Wiper Stalk Slip Squib A2469003914

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Mercedes Vito Viano W639 Headlight Switch Unit Button Knob A6395450204

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Mercedes W205 X253 Console Switch Panel Sat Navigation Controller A2059005915

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Mercedes W212 Steering Column Switch Wiper Stalk Cruise Control A2129000801

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

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Mercedes SLK R172 Steering Wheel Contact Plate Shift Paddles A2184640817

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Mercedes Vito Viano W639 Headlight Switch Unit Button Knob A6399050000

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Mercedes W205 Touch Pad Console Switch Panel Touchpad Controller A2059008918

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Window Switch Mercedes W205 X253 Lifter Driver's Side Regulator A2059056711

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Mercedes W212 A/C Air Con Climate Heater Control Unit Switch Panel A2129004525

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Mercedes Vito Viano W639 Brake Pedal Switch Stop Reverse Light A0015459609

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Steering Column Cluster Mercedes C207 W212 Indicator Stalk Squib A2124409103

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Mercedes W169 W245 Front Window Switch Button Passenger Side A1698205210

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Mercedes W205 Touch Pad Console Switch Panel Touchpad Controller A2059008726

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Steering Wheel Switch Mercedes W176 W204 W212 Multifunction Buttons A2185400162

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Mercedes W176 Steering Column Switch Cluster Wiper Stalk Slip Squib A2469001211

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Mercedes GLC X253 Steering Column Switch Wiper Cruise Control Stalk Automatic

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Mercedes A238 Seat Control Switch Rear Left N/S A2139055503

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Mercedes W205 C253 W447 Window Lifter Switch Regulation Front Door A2059051513

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Mercedes W205 Steering Column Switch Wiper Stalk Cruise Control Automatic

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Mercedes C118 Front Wiper Indicator Steering Column Switch Stalk A1778200100

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Mercedes W204 Estate Steering Column Switch Cluster Wiper Stalk Slip A2129007402

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Mercedes W203 Heater Climate Contol Surround Trim Cover Panel A2036804182

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Hazard Switch Mercedes W176 W246 Centre Console ECO Button Panel A2469055602

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Mercedes W205 Centre Console Multimedia Navigation Control A2059004228

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

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Mercedes ML GLE W166 Suspension Control Adjust Panel Switch Button A1669051151

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Mercedes W203 C209 Cruise Control Switch Stalk A0085452624

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

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Ignition Switch Mercedes W204 Lock Control Unit Module A2075450108

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Mercedes W221 Control Switch Multifunction Steering Wheel Unit A2218700451

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Headlight Switch Mercedes A207 W204 W212 Switch Unit Button A2129050551

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Mercedes CLS W219 A/C Air Conditioning Climate Control Switch Panel A2198303985

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Mercedes W176 Steering Wheel Switch Multifunction Button Trim A0999050700

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Mercedes W221 Switch Cluster Steering Column Wiper Stalk Slip Unit A2215404045

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