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 W213 Steering Wheel Button Switch Multifunction A0999056400 A0999056500

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Part no. A2129050551-1

Headlight Switch Mercedes A207 W204 W212 Switch Unit Button A2129050551

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Part no. A2059056711

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

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Part no. A0015404645-1

Steering Column Switch Mercedes W638 W901 Cluster Indicator Wiper A0015404645

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Part no. A1699051500

Mercedes W169 Key Reader Ignition Lock Remote Control Unit Module A1699051500

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Part no. A2049000204

Mercedes S204 Estate Steering Column Indicator Wiper Stalk Squib A2049000204

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Part no. A2059058509

Mercedes W205 Switch Block Control Unit PDC Parktronic Camera Panel A2059058509

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Part no. A0999050200-1

Steering Wheel Multifunction Mercedes W205 C253 Switch Button Trim A0999050200

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Part no. A0999050700-3

Mercedes W176 W246 W447 Steering Wheel Switch Multifunction Button A0999050700

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Part no. A2139056608

Switch Mercedes C238 Electronic Parking Brake Switch A2139056608

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Part no. A2129007402

Mercedes W204 Estate Steering Column Switch Cluster Wiper Stalk Slip A2129007402

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Part no. A2319005703

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

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

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Part no. A2059001439

Mercedes GLC X253 Steering Column Switch Wiper Cruise Control Stalk Automatic

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Part no. A2059008412

Mercedes S205 X253 Steering Column Cluster Wiper Stalk Switch A2059008412

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Part no. A2318204510

Mercedes SL R231 Centre Console Switch Soft Top Control Button A2318204510

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Part no. A4479053451

Mercedes Vito W447 Hazard Warning Light ESP Switch Panel Dashboard A4479053451

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Part no. A2319008203

Mercedes SL R231 Head Unit Audio Control Unit Switch Button A2319008203

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Part no. A2035450010

Mercedes-Benz C-Class W203 Turn Signal Light Wiper Stalk Switch A2035450010

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Seat Switch Mercedes W221 W216 Electric Seat Adjuster Front Door Left N/S

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Part no. A9069051601

Mercedes W906 Dashboard Panel Hazard ASR Locking ECO PDC Switch A9069051601

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Part no. A2044403002

Mercedes W204 Steering Slip Wheel Ring Stalk Indicator Control Unit A2044403002

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Part no. A2025402144

Mercedes W202 Steering Column Cluster Switch Wiper Indicator Stalk A2025402144

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Part no. A1694640618

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

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Mercedes W177 W205 W213 W222 Radio Remote Alarm Key Fob Button A2059053609

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Part no. A1698702010

Mercedes W169 W245 Dash Dashboard Switch Panel Heated Seats PDC A1698702010

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Part no. A2207330248-1

Mercedes-Benz S W220 1 Rear Right O/S Door Lock Surround Trim Grey A2207330248

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Part no. A0999050300

Mercedes W205 C253 Steering Wheel Switch Multifunction Button Trim A0999050300

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Part no. A2129008215

Steering Column Switch Mercedes W207 W212 Cluster Wiper Stalk Slip A2129008215

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Part no. A2469058202

Hazard Switch Panel Mercedes W117 W156 W176 W246 Control Unit A2469058202

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Part no. A2469001211

Mercedes W176 Steering Column Switch Cluster Wiper Stalk Slip Squib A2469001211

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Part no. A1638202210

Mercedes W163 Seat Control Adjustment Switch Front Left N/S A1638202210

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Part no. A2116803152

Mercedes W211 Instrument Panel Center Switch Panel Wood Cover A2116803152

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Part no. A2229050309

Mercedes W213 W222 W238 Electric Window Lifter Switch Button Unit A2229050309

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Mercedes W205 C253 W447 Window Lifter Switch Regulation Front Door A2059051513

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Part no. A2479003903-1

Mercedes W177 Touchpad Centre Console Multimedia Control Switch A2479003903

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Part no. A2185400262-1

Mercedes W204 W212 Steering Wheel Switch Multifunction Button Trim A2185400262

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Part no. A2059002123

Mercedes C205 Steering Column Switch Cluster Wiper Cruise Control A2059002123

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Part no. A1779004504

Mercedes W177 Steering Column Indicator Wiper Stalk Switch Squib A1779004504

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Part no. A1679050201-2

Window Lifter Switch Mercedes W177 W247 Passenger's Side Button Unit A1679050201

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Part no. A2215459232-1

Mercedes W221 Clock Spring Squib Steering Wheel Angle Sensor A2215459232

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Part no. A0004640618-1

Mercedes W203 C209 Steering Wheel Angle Sensor Slip Ring Squib A0004640618

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Part no. a2059056511

Seat Control Button Mercedes C253 X253 Front Right O/S A2059056511

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Part no. A2059051813

Mercedes W205 W253 Fuel Flap Opener Switch Button A2059051813

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