Automotive electrical systems
More informationAt Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.
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Part no. A2661538479
Mercedes W169 A150 Petrol M266 95HP Engine Control Module A2661538479 Manual
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£23.95
£14.37
Free delivery: Mar 03
If paid before 14:00
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Part no. A2979006811
Mercedes W206 Radio Navigation COMMAND NTG7 High A2979006811
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£712.95
£427.77
Free delivery: Mar 03
If paid before 14:00
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Part no. A2049003509
Mercedes W204 S204 Radio Head Unit Sat Nav CD Player 2049003509
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£42.95
£36.51
Free delivery: Mar 03
If paid before 14:00
-5%
Part no. A2215401833
Mercedes W221 Door Harness Left Right N/O/S Rear Door Wiring Loom A2215401833
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£13.95
£13.25
Free delivery: Mar 03
If paid before 14:00
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Part no. A2218211251
Mercedes W221 Dashboard Instrument Cluster Panel Button Switch A2218211251
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£18.95
£16.11
Free delivery: Mar 03
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Part no. A6461505091-2
Mercedes W203 C220 CDI 150HP 646.963 Engine Control ECU Kit A6461505091 Automat
£170.95
Free delivery: Mar 4 – 11
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Part no. A2045400150
Mercedes-Benz C E Class W204 W207 Fuse Distribution Box Interior A2045400150
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£23.95
£14.37
Free delivery: Mar 03
If paid before 14:00
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Part no. A1679004511
Door Module Mercedes W205 W213 C253 Rear Left N/S Control Unit ECU A1679004511
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£51.95
£44.16
Free delivery: Mar 03
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Part no. A4479009808
Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM 4479009808
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£189.95
£113.97
Free delivery: Mar 03
If paid before 14:00
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Part no. A2115406445
Mercedes C219 Gearbox Electronic Control Unit Module A2115406445
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£94.95
£56.97
Free delivery: Mar 03
If paid before 14:00
Part no. A6549003200-1
Mercedes W177 W205 C213 C220d 654.920 150HP Engine Unit ECU A6549003200 Automat
£66.95
Free delivery: Mar 03
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Part no. A0009827723
Fuse Relay Mercedes W176 W204 W246 4-Pin Unit Black Hella A0009827723
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£13.95
£13.25
Free delivery: Mar 03
If paid before 14:00
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Part no. A2079012700
Mercedes A207 Convertible Roof Reinforcement Roll Bag Airbag Module A2079012700
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£66.95
£40.17
Free delivery: Mar 03
If paid before 14:00
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Part no. rhd-A2044402334
Door Wiring Mercedes W204 Front Left N/S Loom Cable Wire Harness A2044402334
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£13.95
£13.25
Free delivery: Mar 03
If paid before 14:00
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Part no. A2129007519
Mercedes W212 W218 Air Suspension Level Control Unit Module Airmatic A2129007519
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£56.95
£34.17
Free delivery: Mar 03
If paid before 14:00
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Part no. A2465402605
Mercedes-Benz A B W176 W246 Engine Temperature Sensor Wiring Cable Harness
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£13.95
£13.25
Free delivery: Mar 03
If paid before 14:00
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Part no. A0009006906
Mercedes C207 E220CDI BlueTec Adblue Module Control Unit ECU A0009006906
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£18.95
£16.11
Free delivery: Mar 03
If paid before 14:00
-40%
Part no. rhd-A2055406109
Mercedes W205 Door Wiring Front Right O/S Harness Loom Cable A2055406109
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£28.95
£17.37
Free delivery: Mar 03
If paid before 14:00
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Part no. A2218707292
Mercedes W221 Keyless Entry Receiver Control Module Unit ECU A2218707292
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£32.95
£19.77
Free delivery: Mar 03
If paid before 14:00
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Part no. A2214405406
Mercedes W221 Wiring Loom Cable Harness Door Rear Right A2214405406
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£18.95
£16.11
Free delivery: Mar 03
If paid before 14:00
-40%
Part no. A2229009710
Tuner Box Mercedes W176 W212 W218 Digital Audio Control Unit DAB ECE A2229009710
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£94.95
£56.97
Free delivery: Mar 03
If paid before 14:00
-5%
Part no. A2535450140
Mercedes X253 Keyless Go Module Unit Bracket Mount Holder Support A2535450140
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£13.95
£13.25
Free delivery: Mar 03
If paid before 14:00
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Part no. A9015400631
Earth Ground Cable Mercedes Sprinter W901 Battery Wiring Loom Engine A9015400631
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£18.95
£16.11
Free delivery: Mar 03
If paid before 14:00
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Part no. A1775408220
Door Wiring Mercedes W177 W247 Front Passenger Side Cable Harness A1775408220
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£23.95
£14.37
Free delivery: Mar 03
If paid before 14:00
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Part no. A2128270228-IRS
Mercedes W212 Roof Antenna Shark Iridium Silver Metallic 775 E-Class A2128270228
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£23.95
£14.37
Free delivery: Mar 03
If paid before 14:00
-40%
Part no. A2709000900-6
Mercedes C117 W176 A180 270.910 122HP Engine Control ECU Kit A2709000900 Manual
Promo price
£284.95
£170.97
Free delivery: Mar 03
If paid before 14:00
Part no. A2475452301
Mercedes C118 W177 W247 Engine Compartment Fuse Box Bracket M260 A2475452301
£28.95
Free delivery: Mar 03
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Part no. RHD-A2218700289
Mercedes W221 Dashboard Onboard Screen Monitor Navigation Display A2218700289
£47.95
Free delivery: Mar 03
If paid before 14:00
-40%
Part no. A1729002609
Mercedes SLK R172 Rear Fuse Box SAM Relay Control Unit Module A1729002609
Promo price
£37.95
£22.77
Free delivery: Mar 03
If paid before 14:00
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Part no. A2118705726
Air Module Mercedes W211 C219 Air System Control Unit ECU A2118705726
Promo price
£13.95
£13.25
Free delivery: Mar 03
If paid before 14:00
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Part no. A2204451900
Mercedes W220 Central Gateway Control Unit Module ECU A2204451900
Promo price
£28.95
£24.61
Free delivery: Mar 03
If paid before 14:00
-40%
Part no. A1779069601-1
Fuse Box Mercedes W177 W247 Front Relay Engine Control Unit Module A1779069601
Promo price
£104.95
£62.97
Free delivery: Mar 4 – 11
If paid before 14:00
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Part no. A9105400805
Mercedes Sprinter W910 Fuel Tank Wiring Loom Cable Harness A9105400805
Promo price
£13.95
£13.25
Free delivery: Mar 03
If paid before 14:00
Part no. A2165406507
Mercedes CL C216 Door Electrical Wiring Harness Left Right N/O/S A2165406507
£56.95
Free delivery: Mar 03
If paid before 14:00
-40%
Part no. A6519007401-6
Mercedes SLK R172 250CDI 651.980 204HP Engine ECU Kit Ignition + Key A6519007401
Promo price
£151.95
£91.17
Free delivery: Mar 4 – 11
If paid before 14:00
-40%
Part no. A2098200385
Voice Module Mercedes W164 W203 W209 W211 Control Unit Input System A2098200385
Promo price
£161.95
£97.17
Free delivery: Mar 03
If paid before 14:00
-40%
Part no. A6519009702-6
Mercedes W176 W246 A200d OM651.930 136HP Engine Unit ECU A6519009702 Manual
Promo price
£75.95
£45.57
Free delivery: Mar 03
If paid before 14:00
-5%
Part no. A2124402707
Mercedes W212 Parktronic Parking Sensor Interior Protection Wiring A2124402707
Promo price
£13.95
£13.25
Free delivery: Mar 03
If paid before 14:00
-15%
Part no. A2239053605
Mercedes W206 W223 NFC Module Near Field Communication Control Unit A2239053605
Promo price
£28.95
£24.61
Free delivery: Mar 03
If paid before 14:00
-15%
Part no. A2055405203
Mercedes W205 Negative Cable Battery Lead Minus Pole Wiring A2055405203
Promo price
£18.95
£16.11
Free delivery: Mar 03
If paid before 14:00
Part no. A2749000800-7
Mercedes W205 C200 274.920 184HP Engine Control ECU Kit A2749000800 Automatic
£256.95
Free delivery: Mar 4 – 11
If paid before 14:00
-15%
Part no. A2128270228-ING
Mercedes W212 Estate Roof Antenna Cover Shark Indium Grey Metallic A2128270228
Promo price
£22.95
£19.51
Free delivery: Mar 03
If paid before 14:00
-5%
Part no. A2113231226
Mercedes-Benz E Class W211 Front Right Anti Roll Bar Clamp Bracket A2113231226
Promo price
£13.95
£13.25
Free delivery: Mar 03
If paid before 14:00
-5%
Part no. A2079003700
Mercedes C207 Door Module Rear Left N/S Control Unit ECU A2079003700
Promo price
£13.95
£13.25
Free delivery: Mar 03
If paid before 14:00
-15%
Part no. A9064460442
Mercedes W639 Air Module System Control Unit ECU A9064460442
Promo price
£61.95
£52.66
Free delivery: Mar 03
If paid before 14:00
-15%
Part no. A2049009907-1
Mercedes W204 Navigation Radio Player Head Unit Computer A2049009907
Promo price
£237.95
£202.26
Free delivery: Mar 03
If paid before 14:00
-40%
Part no. A2045458401
Mercedes W204 Fuse Box Terminal Connection Unit A2115452301
Promo price
£184.95
£110.97
Free delivery: Mar 4 – 11
If paid before 14:00
Part no. A0065424218
Mercedes Sprinter W906 Turn Rate Sensor Module Control Unit A0065424218
Product currently unavailable
Part no. A1728100011
Mercedes W176 W204 W212 Navigation Control Unit Module NTG 4.5 A1728100011
Product currently unavailable
Part no. A6519060026
Starter Motor Mercedes W204 W212 W639 OM651 Diesel Engine DENSO A6519060026
Product currently unavailable
Part no. A2049017801
Mercedes W204 W212 Windscreen Rain Sensor Control Unit A2049017801
Product currently unavailable
Part no. A0038207726
Mercedes W212 Siren Alarm Horn Signal Module Unit A0038207726
Product currently unavailable
-15%
Part no. rhd-A2045400182
Mercedes W204 Engine Fuse Box Housing Relay Unit Module Cover Panel A2045400182
Product currently unavailable
Part no. A2139068601
Mercedes W205 W213 Actuator Drive Exhaust Flap Control Unit A2139068601
Product currently unavailable
-15%
Part no. A0009820212
Mercedes W176 W212 W246 Voltage Converter Inverter Power Distributor A0009820212
Product currently unavailable
Part no. A0009827008
Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009827008
Product currently unavailable
-5%
Part no. A0025422619-1
Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619
Product currently unavailable
Part no. A9065454701
Mercedes W906 Fuse Box Relay Control Unit Electric Module A9065454701
Product currently unavailable
Part no. A0009820012
Mercedes W176 W212 W246 Voltage Converter Power Distributor Inverter
Product currently unavailable
-5%
Part no. A9064461442
Mercedes Sprinter W906 ECU Control Unit Sensor Module A9064461442
Product currently unavailable
Part no. A0025428719
Mercedes W176 W204 W207 W166 Relay 4 Pin Grey Hella A0025428719
Product currently unavailable
Part no. A6519062800
Starter Mercedes W204 W212 W906 Diesel OM651 Starter Motor Bosch A6519062800
Product currently unavailable
Part no. A2189007206
Headlight Module Mercedes C207 W212 Headlamp Adjust LED Control Unit A2129005324
Product currently unavailable
Part no. A9069006701
Mercedes Sprinter W906 SAM Module Fuse Box Relay Control Unit A9069006701
Product currently unavailable
Part no. A0009006207
Mercedes-Benz A B E W176 W212 W246 Fuel Pump Module Control Unit A0009006207
Product currently unavailable
-15%
Part no. A6395450301
Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
Product currently unavailable
-15%
Part no. A2035400031
Mercedes CLK W203 C209 Negative Battery Terminal Cable A2035400231
Product currently unavailable
Part no. A1728202100
Mercedes W176 W207 W246 USB Interface Multimedia Adapter Connector A1728202100
Product currently unavailable
Part no. A2469002603
Mercedes W176 W246 W166 Windscreen Windshield Rain Sensor Unit A2469002603
Product currently unavailable
Part no. A1645430062
Mercedes W221 Rear View Reversing Camera Control Unit Module A1645430062
Product currently unavailable
Part no. A2045458132
Steering Lock Module Mercedes W204 W207 W212 Control Unit A2045458132
Product currently unavailable
Part no. A2218700092
Mercedes W203 W221 Rain Light Sensor Control Module A2218700092
Product currently unavailable
-15%
Part no. A1179008600
Airbag Module Mercedes w176 Air Bag SRS Control Unit ECU A1179008600
Product currently unavailable
Part no. A2049014504
Rain Sensor Mercedes W204 W212 Windscreen Control Unit A2049014504
Product currently unavailable
Part no. A0025422319-1
Mercedes Universal TYCO Relay Module 12V V23134-B52-X309 A0025422319
Product currently unavailable
Part no. A0061516201
Starter Motor Mercedes Sprinter W204 W211 W212 OM646 Diesel Engine A0061516201
Product currently unavailable
Part no. A1728100011-1
Navigation Processor Mercedes W176 W212 Control Unit Module NTG 4.5 A1728100011
Product currently unavailable
Part no. A1669056001
Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A1669056001
Product currently unavailable
Part no. A0045428718-1
Mercedes W203 W211 Parking Distance Sensor PDC Iridium Bright Silver
Product currently unavailable
Part no. A6398201226
Mercedes Vito W639 Door Front Right O/S Control Unit Module ECU A6398201226
Product currently unavailable
Part no. A1179001802
Mercedes W176 Air Module Belt Locking System Control Unit Module ECU
Product currently unavailable
Part no. A0055421918
Yaw Module Mercedes W204 Rotation Rate Acceleration Sensor A0055421918
Product currently unavailable
Part no. A1698204085
Airbag Control Unit Mercedes W169 W245 System Module ECU A1698204085
Product currently unavailable
Part no. A0061510301
Mercedes W169 W245 Petrol Engine Starter Motor M266 A0061510301
Product currently unavailable
Part no. A1718204426
Mercedes W169 W245 Rain Light Sensor Control Unit Module A1718203726
Product currently unavailable
Part no. A0051513901
Kompressor Mercedes W203 W211 M271 Petrol Engine Starter Motor A0051513901
Product currently unavailable
Part no. A0009061201
Exhaust Flap Control Mercedes C117 W176 W246 Actuator Drive Unit A0009061201
Product currently unavailable
-5%
Part no. A6395420018
Mercedes Vito W639 Steering Wheel Angle Sensor Ring Squib A6395420018
Product currently unavailable
Part no. A0009829608
Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009829608
Product currently unavailable
Part no. A9069006303
Mercedes W906 Fuse Box Control Unit Module ZGS Temic A9069006303
Product currently unavailable
Part no. A0025422519
Mercedes W168 W169 W245 Blue Relay 4-Pin Tyco A0025422519
Product currently unavailable
Part no. A0009052804
Radar Sensor Mercedes W176 W207 W246 Front Control Unit Module A0009052804
Product currently unavailable
Part no. A6519062300
Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter A6519062300
Product currently unavailable
Part no. A1669007814
Mercedes W166 W176 Navigation Screen Head Unit Sat Nav Display A1669007814
Product currently unavailable
Part no. A1718200626
Mercedes R171 SLK200 Module Front Door Right O/S Control Module Unit A1718200626
Product currently unavailable
Part no. A0045420418
Mercedes-Benz C CLK Class W203 C209 ESP Yaw Rotation Rate Sensor A0045420418
Product currently unavailable
Part no. A1698202675
Mercedes W169 W245 Aerial Roof Antenna Radio Rod A1698202675
Product currently unavailable
-15%
Part no. A1698700689
Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698700689
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Part no. A2049060205
Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
Product currently unavailable
Key components of vehicle electrical systems
Original electrical parts for popular car brands
A car's electrical system is a complex system responsible for many key functions—from engine starting to lighting and on-board electronics. Modern cars are equipped with increasingly advanced electrical solutions that not only improve driving comfort but also enhance safety. At the Global Parts automotive store you will find a wide range of used car parts , such as alternators, starters, batteries, control modules and other automotive electrical systems that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini and many others.
How does a car's electrical system work?
A car's electrical system is a complex system that consists of several key components that work together to ensure the vehicle's reliable operation:
- Battery accessories – Includes clamps, cables, holders and other components necessary for battery installation and maintenance.
- Electronic control modules and controllers – They control and manage the operation of various vehicle systems, such as the engine, air conditioning and ABS.
- Alternators and generators – Responsible for generating electricity and charging the battery while the engine is running.
- Parts for alternators and generators – Including voltage regulators, brushes and bearings that ensure proper operation of the alternator.
- Starters – Key components of the starting system that enable the engine to be started.
- Starter parts – Including bendixes, rotors and solenoids necessary for the proper operation of the starter.
- Batteries – They store the electrical energy necessary to start the engine and power on-board systems.
- Wires, harnesses and connectors – They transmit energy and electrical signals between various vehicle systems.
- Fuses and fuse boxes – Protect the electrical system against overloads and short circuits.
- Relays – They control the flow of current in individual electrical circuits of the vehicle. A functioning electrical system is the basis for the reliability of your car, regardless of operating conditions.
Key technical parameters of electrical systems
Each of these components has specific technical parameters that determine its compatibility with the vehicle. For example, alternators installed in mid-range cars (e.g., Volkswagen Passat B6) typically have a capacity of 90 A to 140 A, while luxury vehicles (e.g., Mercedes S-Class) require alternators with a capacity exceeding 180 A. Starter motors vary in torque and operating voltage – the standard is 12 V, while 24 V starters are used in heavy-duty vehicles.
Why is it worth taking care of your car's electrical system?
Regular maintenance and replacement of electrical system components is key to reliability and road safety. Faulty components can lead to:
- Problems starting the engine.
- Failure of safety systems such as ABS or airbags.
- Decreased efficiency of on-board equipment, e.g. lighting or air conditioning. At the Global Parts store we offer original used car parts , which have undergone detailed quality tests, ensuring their full functionality.
Symptoms of electrical system disruptions
In practice, electrical faults manifest themselves in a variety of ways. Drivers most often notice: dimming lights when parked, difficulty starting the engine, a voltage drop on the on-board computer, or air conditioning malfunctions. The table below presents typical correlations:
| Symptom | Possible cause | Item to check |
|---|---|---|
| Difficulty starting the engine | Worn out starter or battery | Starter motor, battery |
| Dimming the lights | Inefficient alternator | Alternator, voltage regulator |
| Electric windows not working | Damaged relays or harness | Relays, wires |
How to choose the right parts for your electrical system?
When choosing parts for the electrical system, such as alternators, starters or control modules, it is worth paying attention to:
- Vehicle-specific fit – Every car make and model requires specific specifications. At Global Parts, you'll find parts that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini, and many more .
- Technical condition – All used parts we offer are thoroughly checked to ensure their reliability.
- Technical parameters – For example, alternators should have appropriate current output, adapted to the needs of your vehicle.
Compatibility and fit
The selection of electrical parts is based primarily on OEM part numbers, but matching them to specific parameters is equally important, including current, voltage, and the number of connector pins. For example, the 120A alternator used in the Audi A4 B7 differs significantly from the 150A version installed in the Audi A6 C6 . Therefore, using manufacturer catalogs or providing the VIN makes finding the right component much easier.
Why choose used electrical parts?
Purchase of used car parts This solution allows you to combine savings with quality. Why choose it?
- Lower costs – Used alternators, starters and other parts are cheaper than new ones, but offer the same high quality.
- Ecology – You support recycling and reduce waste by choosing used car parts .
- Wide range – We offer electrical parts for the most popular car brands, so you can easily find what you need.
How to take care of your car's electrical system?
To ensure your electrical system operates reliably for years, it is worth remembering a few rules:
- Regularly check the battery condition and charge level.
- Take care of your cables and connectors – corrosion or damage can lead to voltage drops and failures.
- Monitor the operation of the alternator and starter – early detection of problems will help avoid more serious breakdowns. If you have any problems, you will find the right car parts at Global Parts that will help restore your vehicle to full working order.
Step-by-step control procedures
- Measure the battery voltage with a multimeter – the resting value should be approximately 12.6 V.
- Check the charging voltage with the engine running – the correct range is 13.8–14.5 V.
- Assess the condition of the wires and terminals – lack of corrosion and a firm seat are essential.
- If in doubt, check the quiescent current consumption – it should not exceed 0.05–0.08 A.
FAQ - Frequently asked questions about electrical systems in cars
| Question | Answer |
|---|---|
| What is a car electrical system? | This is a set of components responsible for powering and controlling all electrical functions in the car – from engine starting to multimedia. |
| What is an alternator for in a car? | The alternator generates electrical current when the engine is running and charges the battery. |
| What is the difference between a starter and an alternator? | The starter motor is used solely to start the engine, while the alternator is responsible for generating energy while driving. |
| How to check if the battery is working? | Just measure its voltage – a healthy battery should have approximately 12.6 V at rest and maintain a voltage above 10 V during cranking. |
| What are the most common symptoms of car electrical failure? | Problems starting the engine, flashing warning lights, power windows not working or dimming lights. |
| Do electrical parts from one model fit another? | Sometimes yes, but the key is to match it by VIN or OEM number – this guarantees compatibility. |
| How often should you check your electrical system? | It is worth performing basic diagnostics (battery, alternator) at least once a year or before a long trip. |
Summary: Automotive electrical systems at Global Parts Automotive Store
Automotive electrical systems are the foundation of the reliability and comfort of every modern vehicle. By choosing the right parts, such as alternators, batteries, and control modules, you can ensure your car's full operational efficiency. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , or others, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .