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 W211 CLS W219 Anti Theft Tow Switch Interior Roof Button A2118213151

£13.95

Part no. A2229000012

Mercedes W205 Start Lock Ignition Switch Barrel Module Unit ECU A2229000012

£85.95

Part no. A4709050901

Mercedes W470 Line Assist Button Switch Block Panel A4709050901

£28.95

Part no. A1679057901

Mercedes W177 Front Seat Lumbar Adjustment Switch Button Right O/S A1679057901

£13.95

Part no. 31955EU50B

Mercedes W470 Steering Angle Sensor Slip Ring Squib 31955EU50B

£13.95

Part no. A2048706310-1

Mercedes W204 Locking Switch Button Front Door Left N/S A2048706310

£13.95

Part no. A4709058200

Mercedes W470 Switch Electric Window Regulator Rear Central A4709058200

£28.95

Part no. A2518200510-3

Mercedes W169 W245 W251 Window Power Switch Lifter Control Unit A2518200510

£13.95

Part no. A2229055508

Mercedes A238 Front Lamp Headlight Dashboard Control Switch Panel A2229055508

£13.95

Part no. A2078204010

Switch Panel Mercedes C207 Dash Centre Console PDC Heated Unit A2078204010

£23.95

Part no. A2049000304-1

Steering Column Cover Mercedes C197 AMG W204 Wiper Stalk Trim A2049000304

£13.95

Part no. A2059005915-3

Mercedes W205 Touch Pad Console Switch Panel Touchpad Controller A2059008918

£113.95

Part no. RHD-A2229052303-1

Mercedes C205 C253 Tailgate Bootlid Open Switch Push Button Beige A2229052303

£37.95

Part no. A1669050103

Mercedes ML W166 Off-Road Package Suspension Switch Control Button A1669050103

£94.95

Part no. A1669054600

Mercedes W166 Suspension Level Control Switch Unit Button Panel DSR A1669054600

£80.95

Part no. A2218701279

Mercedes-Benz W221 Rear Left N/S Passenger Seat Switch Control Unit A2218701279

£189.95

Part no. A2118213151

Mercedes-Benz E CSL Class S211 W211 W219 Anti Theft Tow Switch A2118213151

£13.95

Part no. A2308202410

Mercedes C219 Control Switch Multifunction Steering Wheel Unit A2308202410

£18.95

Part no. A2308202310

Mercedes C219 Control Switch Multifunction Steering Wheel Unit A2308202310

£18.95

Part no. A2218213151

Mercedes W221 Door Locking Lock Switch Button Front Right Door O/S A2218213151

£13.95

Part no. rhd-A4156890191

Mercedes Citan W415 Headlight Level Adjuster Switch Control Panel A4156890191

£13.95

Part no. A2128700610-1

Seat Switch Mercedes C207 W212 Memory Adjustment Door Front Left N/S A2128700610

£42.95

Part no. A1779056104

Mercedes W177 Remote Key Radio Alarm Fob Button A1779056104

£47.95

Part no. A2539056203

Mercedes C253 Interior Control Hazard Switch Button Panel A2539056203

£42.95

Part no. RHD-A2218707951

Mercedes W221 Seat Adjustment Control Switch Panel Rear Right O/S A2218707951

£18.95

Part no. A2218700779

Mercedes-Benz S W221 Switch Panel Box Adjustable Electric Seat Memory Right O/S

£75.95

Part no. A2139052207

Mercedes W213 Radio Remote Alarm Key Fob Button A2139052207

£32.95

Part no. A0994643302

Mercedes W213 Steering Wheel Contact Switch Control Plate Panel A0994643302

£47.95

Part no. A1648700189

Mercedes W164 Automatic Air Conditioning Unit Control Panel Rear A1648700189

£18.95

Part no. A4479057900-1

Mercedes Vito W447 Headlight Lamp Switch Control Unit Button Black A4479057900

£23.95

Part no. A2038700251-1

Mercedes CL203 S203 Switch Panel Heated Seats Lock Control Cover A2038700251

£28.95

Part no. A1648600021

Mercedes V251 Front Winscreen Windshield Washer Pump A1648600021

£13.95

Part no. A2139059803

Mercedes C238 Switch Seat Regulation Door Adjustment Front Right O/S A2139059803

£13.95

Part no. A6395407209

Mercedes-Benz Vito W639 Front Left Right Door Exterior Handle Wiring Cable

£13.95

Part no. A2049058402-1

Central Lock Switch Mercedes W176 W204 W212 Door Locking Button A2049058402

£18.95

Part no. A2139050404

Seat Switch Mercedes C238 Front Door Heated Seat Right Switch A2139050404

£18.95

Part no. A1569053501

Mercedes X156 Interior Hazard Warning Button Switch Block Panel A1569053501

£118.95

Part no. A2208201210

Mercedes W220 Rear Door Window Lifter Switch Left Right N/O/S A2208201210

£13.95

Part no. A2139004608

Mercedes W213 Centre Console Multimedia Touchpad Control Unit Panel A2139004608

£132.95

Part no. A2038707910

Mercedes W203 Hazard Warning Switch Panel A2038707910

£13.95

Part no. A2118000878

Mercedes W164 Front Drivers Multicontour Seat Control Switch Button A2118000878

£23.95

Part no. A2129007602

Mercedes S204 Steering Column Cluster Indicator Wiper Stalk Squib A2129007602

£113.95

Part no. A2185400262-4

Mercedes W204 W212 Steering Wheel Switch Multifunction Button Trim A2185400262

£18.95

Part no. rhd-A2058307600

Mercedes W205 Air Conditioning Fan Blower Control Lever Mechanism A2058307600

£23.95

Part no. RHD-A4709058700

Mercedes W470 Switch Electric Window Regulator Driver's Side A4709058700

£28.95

Part no. A2229009808

Mercedes W205 SAM Module Rear Comfort Control Unit ECU A2229009808

£51.95

Part no. A4709059400

Mercedes W470 Window Control Switch Button Rear Left Right N/O/S A4709059400

£28.95

Part no. RHD-A2218702179-1

Mercedes W221 Seat Switch Panel Adjust Memory Heated Front Right O/S A2218702179

£23.95

Part no. A2518100300-2

Mercedes V251 Wing Mirror Electrical Module Relay Unit A2518100300

£28.95

Part no. A2038214581

Switch Panel Mercedes W203 W209 Hazard Light Block ESP Parktronic A2038214581

£37.95

Part no. A2218214751

Mercedes W221 Rear Door Window Switch Adjuster Left Right N/O/S A2218214751

£13.95

Part no. A2218214351

Mercedes W221 Window Lifter Control Switch Rear Left Right N/O/S A2218214351

£18.95

Part no. A2139008310

Control Panel Mercedes W213 Comand Audio Switch Unit Module A2139008310

£142.95

Part no. A9068701110-1

Mercedes W906 Dashboard Switch Panel ESP ASR Lock Hazard Lights A9068701110

£18.95

Part no. A1699050400

Mercedes Benz A B W169 W245 PDC Parking Control Switch Towing Mode A1698701910

£13.95

Part no. A2046801507

Mercedes W204 Centre Console Ashtray Trim Cover Panel Aluminium A2046801507

£18.95

Part no. A4479051401

Mercedes W447 Dashboard Switch Hazard Trim Cover Panel Black A4479051401

£28.95

Part no. A1648707410

Mercedes W164 Warning Light Button Switches Console A1648707410

£18.95

Part no. A2208000878

Mercedes W220 Seat Control Panel Switch A2208000878

£13.95

Part no. A1725400362

Mercedes R172 Steering Wheel Switch Multifunction Button Trim A1725400362

£23.95

Part no. A2129001703

Mercedes C204 Steering Column Switch Control Unit Module A2129001703

£165.95

Part no. A0005452812-2

Mercedes W118 W177 W205 W907 Brake Light Switch Button Electrical A0005452812

£18.95

Part no. A2469004120-2

Mercedes W447 Steering Column Cluster Switch Cruise Control Stalk A2469004120

£66.95

Part no. A1669006706

Mercedes GL X166 Wiper Control Indicator Stalk A1669006706

£279.95

Part no. A2118217058

Mercedes C219 Air Matic Suspension PDC Parking Assist Switch Panel A2118217058

£18.95

Part no. A1718209310

Mercedes SLK R171 Hazard Lights Switch Panel ESP Heated Seats A1718209310

£42.95

Part no. A1635408311

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

£18.95

Part no. A2078206010

Mercedes C207 Upper Switch Parktronic Control Panel Seat Heater A2078206010

£28.95

Part no. RHD-A2056880000-1

Mercedes W205 Light Switch Headlight Control Unit Panel A2056880000

£23.95

Part no. A2139001402-1

Mercedes W213 Switch Cluster Jacket Tube Steering Column Trim Panel A2139001402

£28.95

Part no. A2129008602-1

Steering Slip Mercedes W212 Wheel Ring Switch Indicator A2129008602

£142.95

Part no. A2128207810

Mercedes W212 Warning Indicator Switch A2128207810

£28.95

Part no. A2139052904

Mercedes C238 Switch Block Driver's Assistance System Switch Buttons A2139052904

£18.95

Part no. A2218215851

Mercedes W221 Steering Wheel Switch Unit Multifunction Right O/S A2218215851

£18.95

Part no. A2518210251-1

Mercedes W251 Steering Wheel Button Switch Left N/S Multifunction A2518210251

£18.95

Part no. A2059004028-2

Mercedes S205 Audio Comand Control Panel Rotary Push Button A2059004028

£132.95

Part no. A1729051000

Mercedes R172 Dashboard Hazard Light ESP ECO Control Switch Panel A1729051000

£85.95

Part no. A1728207910-1

Mercedes R172 R231 Glovebox Compartment Storage Light Switch A1728207910

£18.95

Part no. A2195450904

Mercedes C219 Headlight Switch Unit Light Control Panel A2195450904

£23.95

Part no. A2208217558

Mercedes-Benz S-Class W220 Dash Control Panel Hazard Switch Cluster A2208217558

£28.95

Part no. A2038700151

Mercedes W203 Switch Unit Control Panel Module Hazard Lock PDC ESP A2038700151

£13.95

Part no. A1569050801

Mercedes Benz GLA X156 Upper Switch Block Control Panel A1569050801

£94.95

Part no. A2059001046-1

Mercedes GLC X253 Automatic Column Switch Wiper Indicators Stalk A2059001046

£104.95

Part no. rhd-A2059053420

Mercedes C253 Seat Adjustment Switch Block Right O/S Door A2059053420

£32.95

Part no. A2059050604

Mercedes A205 Switch Control Panel Hazard ASR Heated Seat Button A2059050604

£42.95

Part no. rhd-A2059053320

Mercedes C253 Seat Adjustment Switch Block Left N/S Door A2059053320

£32.95

Part no. A1669051151

Mercedes ML GLE W166 Suspension Control Adjust Panel Switch Button A1669051151

£37.95

Part no. A2218700058

Mercedes W221 Rear Seat Heating Switch Adjustment Left N/S A2218700058

£23.95

Part no. A2218201697

Mercedes W221 Rear Centre Console Air Conditioning Control Unit A2218201697

£47.95

Part no. A2059057909

Mercedes W205 Switch Driving Assistance Mode Driver Side Console A2059057909

£23.95

Part no. RHD-A1405450411

Mercedes C140 Steering Column Adjustable Stalk Switch A1405450411

£28.95

Part no. A17182096710

Steering Wheel Switch Mercedes R171 W203 Multifunction Right O/S A1718206710

£18.95

Part no. A0008008078

Mercedes W204 Seat Adjustment Switch Control Panel Front Right O/S A0008008078

£18.95

Part no. A2129001623

Mercedes CLS W218 Navigation Switch Comand Multifunction Knob Button A2129001623

£23.95

Part no. A1698208410

Mercedes-Benz A B Class W169 W245 Alarm Control Switch Towing Mode A1698208410

£13.95

Part no. A2059057603

Seat Switch Mercedes W204 W212 Regulation Adjust Front Left N/S A2059057603

£13.95

Part no. A0285456932

Mercedes-Benz CL S Class C215 W220 Indicator Wiper Stalk Switch A0285456932

£18.95

Part no. rhd-A1695452904

Mercedes-Benz A-Class W169 Headlight Switch Unit Button A1695452904

£13.95

Part no. A2108213551

Mercedes-Benz C E Class W202 W210 ESP Brake Control Button Switch A2108213551

£13.95

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