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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Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2048204697
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BMW E90 E91 E92 LCI 335i N55 306HP Engine ECU DME Kit CAS3 + Key 7629130 Manual
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VW Volkswagen New Beetle 1.9 TDI BSW Diesel Alternator Generator 038903024F
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Starter BMW F10 F07GT F13 F03 X5 E70 Petrol N63 Starter Motor 1.6 KW 7556131
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Radio Stereo BMW F20 F30 F31 Professional CD DAB Nav Head Unit 9299272
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BMW X3 F25 Battery Cable 30dX 35dX Wiring Alternator Starter Cable B+ 8515491
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Ford Transit TT9 Control Unit Relay Central Door Lock Module ECU F3LB-14B118-AA
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Airbag Module Citroen Berlingo Peugeot Partner Air Bag Control Unit 9803916880
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Mercedes CLK W209 Convertible Roof Top Control Unit Module ECU A2098204526
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Mercedes W221 Fuse Box Front SAM Module Relay Control Unit A2215402862
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Renault Trafic III Vauxhall Vivaro B Positive Battery Cable Lead Wire 240809677R
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Mercedes ML W164 Diesel OM629 Wiring Alternator Starter Harness A1644406532
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BMW Z4 Series E85 Hifi System Amplifier Speaker System Unit 6929689
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Radio Panel Mercedes W176 W242 W246 Radio Multimedia Switch Control A2469009412
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Fuse Box Vauxhall Vivaro B Renault Trafic III Relay Control Unit Module 93452999
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BMW 1 3 Series E81 E87 LCI E90 E91 120d 320d N47 ECU KIT DDE CAS 3 Key 7811700
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BMW E87 E90 E91 118i 318i N46 129HP ECU Kit DME 7565300 + CAS3 + Key Manual
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Audi A7 S7 4G8 A8 D4 4.0 TFSI Starter Motor Denso Petrol Engine 079911024
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Audi A4 8K 2.0 TDI Diesel Engine Alternator Generator 04L903017E
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Volkswagen Polo 6N Alternator Generator BOSCH 14V 70A 028903025G
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BMW 5 Series E60 Wiring Switch Engine Hood Bonnet Cable 6948729 61126948729
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BMW F20 F21 LCI F22 M140i M240i B58 340HP Engine ECU KIT DME 8489450 FEM + Key
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Mini R50 R53 6-Disc CD Changer Multichanger Without Magazine 6983334
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Mercedes W203 C200 Kompressor M271.940 163HP Engine ECU A2711534691 Automatic
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Range Rover L322 3.0 Starter Motor Diesel Engine Denso 7787925
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BMW 5 Series E60 Light Control Unit Module LEAR LM E6X MIT AHI 6983539
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Mercedes-Benz C E Class W204 W207 W212 Battery Holder Mount Bracket A2046280041
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Audi A4 B8 A5 8T Diesel 2.0 TDI Starter Motor Manual 03L911024
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Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 8,8" 6822625
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Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit A2049069801
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Audi A4 S4 B9 A5 A5 F5 3.0 Petrol Alternator Generator 14V 150A 06E903024L
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Mini Cooper S R55 R56 R57 N14 1.6 ECU Engine Control Unit DME 7610009 Manual
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BMW F46 218i B38 136HP Engine Control Unit ECU Kit DME 8674260 FEM + Key Manual
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BMW 1 2 Series F20 F21 F30 Brake Disc Protection Plate Front Right O/S 6873418
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BMW F20 F21 F30 F32 N55 Power Distribution Module Bracket Cover Carrier 8620771
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BMW X5 Series E53 Electrical Power Distribution Fuse Box 6907395
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BMW Z4 E89 Head Unit Stereo Professional Navigation System Computer CIC 9214939
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Mercedes W213 Mechatronic Automatic Gearbox Control Unit Module A7252701905
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Volkswagen Tiguan 5N Module BCM Body Control Unit Module ECU 3C0937049E
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Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 8T0971365Q
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Mercedes W169 W245 Aerial Roof Antenna Radio Rod A1698202675
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Audi A1 S1 8X Fuse Relay Box Module Unit 6C0941824D
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9147387
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Mercedes W205 C 220d BlueEFFICIENCY 651.921 170HP Engine ECU Unit A6519005203
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BMW 7 SERIES E65 E66 E67 Loudspeaker Box Right O/S 6907646
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Audi TT 8N Body Comfort Convenience Module Unit CCM ECU 8N8962267E
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BMW E90 E91 E92 N52 N52N Engine Starter Motor Valeo 7616500
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Mercedes W211 W219 Navigation Reader DVD CD Player Control Unit A2118705226
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Part no. 7545789-4
Mini R50 One 1.6i W10 90HP Engine ECU Kit DME + EWS3 + Key 7545789 Automatic
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BMW Mini Cooper R55 R56 R57 N12 Engine Extension Cable Blow By 7568769
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Mercedes H243 Multifunction Front Camera Control Unit Module A2479008715
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Mercedes W221 Seat Control Module SSG Unit Front Left Seat N/S A2218702986
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BMW E90 E91 LCI N47N 320d 184HP ECU Engine Control Unit DDE 8518269 Manual
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Audi S3 8V Central Gateway Control Unit Module Relay ECU 3Q0907530G
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BMW X5 E53 3.0d M57N 218HP ECU Kit DDE + EWS3 + Key 7794626 Automatic Gearbox
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Mercedes W212 E220CDI OM651.924 Engine ECU Kit Key Lock Ignition A6519005301
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Mercedes W177 OM608 Diesel Engine Wiring Loom Harness Cable Loom A6081500400
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BMW 3 Series E46 Dashboard Dash Twilight Sun Solar Sensor 6901570
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Smart Opener Module BMW F01 F07 F10 F30 Trunk Open Control Unit ECU 7422700
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Mercedes W639 Automatic Gearbox Control Unit Module ECU A0005458416
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Mercedes W169 Fuse Box Cover Trim Panel A1695450003
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Tailgate Smart BMW F10 F30 F34 Mini F54 F60 Opener Control Unit Module 7491439
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BMW Mini Cooper S R52 R53 Auxiliary Wiring Harness Servo Pump 7530357
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BMW F45 X1 F48 i3 I01 Airbag Module Control Unit ECU Air Bag 9495910
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Mini F55 F56 F57 Integrated Supply Module Electrical Control Unit Module 8486997
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Mini F54 F55 F56 F57 F60 Petrol Engine Starter Motor 7649090
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BMW F45 Mini F55 F56 Head Unit Basic Media DAB Headunit 9381320
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BMW X5 E53 3.0i M54 231HP ECU Kit DME 7519308 Manual + EWS3 + Key
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Engine Wiring Mercedes W176 W246 Diesel OM651 Loom Harness Cable A6511507386
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Volkswagen Golf Mk7 Headlight Cornering Module Control Unit 3D0941329E
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Mercedes W177 W247 All Wheel Drive Control Unit Module ECU SG MFA2 A2479000910
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BMW 1 3 E87 E90 E91 E92 M47N2 M57N2 Alternator Bosch Diesel 150A 0 986 080 580
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BMW X5 SERIES E53 3.0i M54 Engine Wiring Loom Harness Module 7531986
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Battery Cable BMW F45 F46 Negative Lead IBS Wiring Harness 6821203
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BMW 3 Series E36 Body Control Module Unit ECU GM IV LOW 8369483
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Audi A4 B7 2.0 TDI Diesel Engine Control Unit ECU Module Manual 03G906016JD
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Audi RS3 8Y 2.5 TFSI Quattro 400HP DNWC Engine Unit ECU 07K907309L Automatic
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Audi A4 B8 A5 8T 2.0 TDI Diesel Engine Starter Motor Assembly Unit 03L911024A
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Jaguar XF250 3.0 306DT AJV6D Engine Alternator Generator 8X2310300CB
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Part no. 3WA959354
Audi Q2 GA Impact Crash Control Sensor Module ECU 3WA959354
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Audi A5 8T Navigation System Car Sat Nav Computer Head Unit CIC 4G0035061B
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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 .