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-Benz Sprinter W906 Headlight Switch Control Unit Button A9065450504

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Part no. A0999056807

Shift Paddle Mercedes W166 W177 Steering Wheel Gear Switch SET A0999056807

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Switch Mercedes W177 Front Drivers Door Window Lifter Switch Mirror Adjustment

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Part no. A2129056201

Mercedes A207 PDC Suspension Button Switch Control Right O/S Panel A2129056201

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Part no. A2049050902

Mercedes W204 Switch Panel Centre Console Sport ECO PDC Heated Seat A2049050902

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Mercedes SLK R171 A/C Air Conditioning Control Switch Panel A1718301385

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Mercedes W204 W212 Radio Control Function Button Knob Controller A2048709958

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Mercedes GLC X253 Automatic Column Switch Cluster Wiper Indicators Stalk

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Part no. A2098702010

Mercedes CLK W209 Convertible Cabrio Folding Top Switch Roof Button A2098702010

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Mercedes C253 Air Suspension Rear Control Switch Button Panel A2539056801

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Mercedes Vito W639 Ignition Switch Barrel Lock Control Unit A6399006600

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Part no. A4479053451

Mercedes Vito W447 Hazard Warning Light ESP Switch Panel Dashboard A4479053451

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Part no. A2098000178-1

Mercedes CLK W209 Seat Switch Adjustment Front Left N/S Beige A2098000178

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Part no. A1635408311

Mercedes-Benz ML W163 Alarm Monitor Motion Sensor Control Switch A1635408311

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Part no. A2129000801

Mercedes W212 Steering Column Switch Wiper Stalk Cruise Control A2129000801

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Part no. A1408217551

Mercedes C140 Window Glass Child Lock Button Switch Control A1408217551

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Part no. A2129008215

Steering Column Switch Mercedes W207 W212 Cluster Wiper Stalk Slip A2129008215

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Part no. A2038700251

Mercedes CL203 S203 Switch Panel Heated Seats Lock Control Cover A2038700251

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Part no. A0999050051

Mercedes W205 W217 W222 W253 Steering Wheel Control Buttons Left N/S A0999050051

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Part no. A2059056611-1

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

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Part no. A2128702951-1

Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702951

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Part no. A2129008523

Mercedes C207 Steering Column Switch Cluster Wiper Indicator Stalk A2129008523

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Part no. A2045453004-1

Mercedes W204 Headlight Light Switch Control Unit Button A2045453004

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Part no. A1718205410

Mercedes SLK R171 Power Window Lifter Switch Front Door Regulation A1718205410

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Part no. lhd-A2215451404

Mercedes W221 Headlight Headlamp Control Switch Panel Assembly A2215451404

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Part no. A2048210351

Mercedes W204 Steering Wheel Switch Unit Multifunction Left N/S A2048210351

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Part no. A6395450504

Mercedes Vito Viano W639 Headlight Fog Light Switch Unit Button A6395450504

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Part no. A2128701351

Mercedes W212 Radio Control Function Button Knob Controller Unit A2128701351

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Part no. A1715450532

Steering Column Switch Mercedes W211 C219 Angle Sensor Indicator Cruise Control

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Part no. A0994640813-1

Mercedes W204 Cover Trim Multifunction Switch Steering Wheel A0994640813

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Part no. A0999050200

Mercedes W205 C253 Steering Wheel Switches Multifunction Button A0999050200

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Part no. A2469058202

Hazard Switch Panel Mercedes W117 W156 W176 W246 Control Unit A2469058202

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Part no. A2048700579

Mercedes W204 Navigation Switch Comand Multifunction Knob Button A2048700579

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Part no. A1718207810

Mercedes R171 Dashboard Dash Hazard Light Lock Switch Panel Control A1718207810

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Part no. A2129007502-4

Steering Wheel Slip Mercedes W212 Ring Airbag Switch Indicator A2129007502

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Part no. A0999053404

Mercedes W177 Steering Wheel Button Switch Multi Function Set A0999053404

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Part no. A2059000646

Mercedes W205 C253 Steering Column Switch Indicator Wiper A2059000646

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Part no. A2036804182

Mercedes W203 Heater Climate Contol Surround Trim Cover Panel A2036804182

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Part no. A1638203610

Mercedes-Benz M-Class ML W163 Interior Lighting Switch Button A1638203610

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Part no. A2319005703

Mercedes SL R231 Heater Climate A/C Control Switch Panel Unit A2319005703

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Part no. A1729000312

Mercedes SLK R172 Audio Comand Control Panel Push Button Switch A1729000312

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Mercedes R171 Hazard Switch Panel Heated Seat Control A1718208310

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Part no. A2469052001

Dashboard Panel Mercedes W176 Switch ECO Button Select Control Unit A2469052001

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Part no. A2218700451-1

Mercedes W221 Control Switch Multifunction Steering Wheel Unit A2218700451

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Part no. A2118210981-1

Mercedes CLS C219 Switch Panel Centre Console ESP Hazard Heated Wood A2118210981

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Mercedes W221 Seat Switch Panel Adjust Control Unit Rear Left A2218709458

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Part no. A1779004504

Mercedes W177 Steering Column Indicator Wiper Stalk Switch Squib A1779004504

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Part no. A1669008707

Mercedes W166 Switch Cluster Steering Column Wiper Stalk Slip A1669008707

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Part no. A2139002823

Switch Module Mercedes C238 Steering Column Wheel Automatic Gearbox A2139002823

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Part no. A2129008014

Mercedes W204 Steering Column Cluster Indicator Wiper Stalk Squib A2129008014

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Part no. A2219054500-2

Mercedes W221 Comand Sat Nav Navigation Switch Controller Panel A2219054500

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Part no. A2038211179

Mercedes-Benz CLC CL203 Steering Wheel Switch Right Multifunction A2038211179

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Part no. A2098000178

Mercedes W203 W209 Seat Switch Adjustment Front Left N/S Lumbar A2098000178

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Part no. A1645403245

Mercedes W221 Steering Column Electrical Adjustable Stalk Switch A1645403245

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Mercedes CLK W209 Steering Angle Sensor Slip Ring Air Module Squib A2095403045

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Mercedes C253 Touch Pad Console Switch Panel Touchpad Controller A2539000008

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Mercedes W204 Steering Column Switch Cluster Wiper Stalk Slip Squib A2044401401

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Part no. A9065456408

Key Reader Mercedes Sprinter W906 Ignition Lock Remote Module A9065456408

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Part no. A2059004819

Mercedes W205 Touch Pad Console Switch Panel Touchpad Controller A2059004819

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Mercedes-Benz W202 C208 W210 Folding Wing Mirror Switch Button A2108202010

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Part no. A2139050604

Mercedes C238 Front Left N/S Switch Heated Ventilation Seat Unit A2139050604

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Mercedes W140 W202 Window Switch Regulator Control Panel Electric A1408212951

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Mercedes W211 Steering Wheel Button Switch Left Black Multifunction

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Mercedes Sprinter W901 Headlight Height Adjuster Switch Control Unit A0075451624

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Wiper Indicator Mercedes W205 X253 Steering Column Switch Stalk A2059006712

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Part no. A6395450613

Mercedes Vito W639 Window Lifter Electric Switch Button Control Unit A6395450613

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Part no. A9068200010-2

Mercedes Sprinter W906 Switch Button Multifunction Steering Wheel A9068200010

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Steering Slip Mercedes W176 W246 W447 Wheel Ring Switch Indicator A2469003614

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Part no. A2059008918

Mercedes W205 Touch Pad Console Switch Panel Touchpad Controller A2059008918

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Part no. A6395455207-1

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

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Part no. A1729004204

Mercedes SLK R172 Air Conditioning Heater Control Switch Panel A1729004204

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Part no. A2049006608-3

Mercedes W204 Air Conditioning Unit Control Switch Panel Module A2049006608

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Part no. A2469008717

Mercedes W447 Steering Column Cluster Switch Wipers Indicators Cruise Control

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Part no. A9079057804-2

Mercedes Sprinter W907 Steering Wheel Panel Cover Trim A9079057804

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Part no. A1729004804

Mercedes SLK R172 Steering Column Cluster Switch Wiper Stalk Slip A1729004804

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Part no. A6395450104

Mercedes Vito Viano W639 Headlight Switch Unit Button Knob A6395450104

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Part no. A1729006002

Mercedes R172 Steering Column Switch Wiper Indicator Stalk A1729006002

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Part no. A1714640918

Mercedes W221 Steering Wheel Angle Slip Ring Indicator Wiper Stalk Switch

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Part no. A2469055602

Hazard Switch Mercedes W176 W246 Centre Console ECO Button Panel A2469055602

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