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. 6926358
BMW E87 E90 E91 E92 Front Seat Module Control Unit ECU 6926358
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MINI Cooper One D R55 R56 Alternator Generator Diesel 150A 7794970
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Exide Battery AGM EK700 70Ah 760A Accumulator
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Mercedes Citan W415 Radio Audio Player Stereo Head Unit USB BT MP3 281151545R
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Ford Transit Mk8 Relay High Power 4-Pin Black FoMoCo GU5T-14B192-GA 4RA933714
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BMW E65 E66 Battery Cable Positive Plus Pole 6904905
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BMW E87 E90 E91 118d 318d M47N2 Engine ECU Kit DDE CAS2 Key 7797216
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Door Cable Mercedes W212 Wiring Loom Front Right O/S Driver Side A2124401251
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Seat Leon Mk3 Antenna Amplifier Module FM Right O/S Aerial Booster 5F4035225B
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BMW 3 5 7 X3 Series E46 E60 E65 E83 M54 Alternator Generator 7541694 155A BOSCH
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Part no. 8386427
BMW E46 Wing Mirror Memory Control Unit Module ECU 8386427
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Part no. 5N0971693A
Volkswagen TIGUAN 5N Rear Door Left Right N/O/S Harness Cable Wiring 5N0971693A
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Peugeot 3008 Wiring Loom Harness Cable 9665290180
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Mini Cooper Cabrio 1 R57 Aerial Roof Antenna Base Unit 3453891
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Ford Transit MK7 Body Control Unit Module BCM Fuse Box CC1T14A073BD
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Mercedes SLK R170 Climate Control Air Conditioning Module Unit A1705450005
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Audi TT 8N BAM 1.8 T Quattro 225HP Petrol Engine Unit ECU Manual 8N0906018H
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BMW X5 E70 LCI X6 E71 F01 F02 Starter Motor N57 Engine 8515900
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VW Volkswagen Crafter 1 2.0 TDI CKTB Engine Unit Module ECU Manual 03L906012Q
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Audi A4 B9 Engine Starter Motor Actuator Starter 04L911021B
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Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035061D
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Audi A8L 4H TV Tuner Digital Video Control Module 4G0919129C
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Part no. 8509023
BMW E90 E91 E92 E93 LCI X1 E84 X3 F25 Alternator Generator 180A N47N 8507624
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Audi Q2 GA Rear Bumper PDC Parking Sensor Wiring Harness Loom 81A971104E
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Audi A4 B8 A5 8T Door Module Control Front Unit ECU 8K0959793H
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Part no. 7807827-1
BMW 1 3 Series E87 E90 LCI 120d 320d N47 Diesel ECU Kit DDE 7807827 CAS3 Key
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BMW E46 M43 Engine Wiring Loom Harness Ignition Module Cable 1437967
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Part no. 9227118
BMW F07 GT On Board Central Information Display Screen Monitor 10,25" 9227118
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Part no. A6399000300-1
Mercedes Vito Viano W639 Side Sliding Door Control Unit Module ECU A6399000300
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Part no. A0275455632
ESP Module Mercedes W210 Electronic Stability Program Control Unit A0275455632
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Mercedes W415 Citan Renault Kangoo Rear Left Door Reflector Light 8200589436
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Part no. 7803373-7
BMW X3 E83 LCI M47N2 2.0d 150HP ECU Engine Control Unit DDE 7803373 Manual
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Charging Module BMW i3 I01 Rex Hybrid Comfort Battery Control Unit KLE 5A12D42
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Audi A4 B8 Bluetooth Multimedia Interface Control Module Unit ECU 8T0862335E
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Part no. 6962888
Air Module Sensor BMW Z4 E64 E85 B Pillar Right O/S 6962888
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Door Wiring Loom BMW E63 E64 Harness Passengers Side 6928975
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Mini Cooper S R55 R56 LCI N18 Wiring Loom Harness Engine Automatic Gearbox
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Part no. A0009002010
Transmission Module Mercedes C117 AMG Petrol OM133 Gearbox Control A0009002010
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Door Cable BMW E93 Convertible Wiring Loom Front Cables Driver's Side 6926324
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Part no. 7528050
BMW X5 E53 3.0i M54 231HP Engine Control Module Unit ECU DME 7528050 Automatic
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Trunk Lid Module BMW F40 F90 M5 G20 G30 Power Tailgate Control Unit 9451484
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Mercedes W203 W204 M271 Engine Alternator Generator Valeo 120A 14V A2711541402
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Mercedes Vito Viano W639 Fuse Box Cover Trim Panel Lid Housing A6395450403
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Mercedes-Benz E-Class S211 W211 Rear Bottom Left Holder Bracket A2115460343
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Audi VW Volkswagen Seat Relay Unit Module 9 Pins 12V UH2 4B0955531A
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Mercedes GLA 220d X156 4matic 651.930 177HP Engine ECU Kit A6519007003 Automatic
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Mercedes W212 Engine Alternator Generator A0009062100
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Mercedes W176 W246 Emergency Call Switch Roof Wiring Cable Loom A2465402710
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Part no. 7561834-14
BMW E87 E90 E91 120i 320i N46 150HP ECU KIT DME 7561834 CAS2 + Key Automatic
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Mercedes W211 E320 CDI OM642.920 224HP Engine Module ECU Automatic A6421508977
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Audi A5 8T Seat Module Control Unit ECU Front Left Right N/O/S 8T0959760
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Mercedes ML W164 SLK R171 W211 C219 CD Changer 6 Disc Player Unit A2118705390
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Audi A4 B7 Window Antenna Amplifier Module 8E5035225D
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Mercedes R171 Seat Air Module Control Unit Front Left N/S A1718600105
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Starter Motor Ford Galaxy Mondeo S-Max TDCi Diesel Engine Starter 6G9N-11000-FA
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BMW E87 130i 265HP Engine N52 Engine ECU Kit DME 7559178 CAS2 + Key Manual
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Audi S3 8Y PDC Parking Distance Sensor Daytona Grey Metallic - Z7S 5WA919275C
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Ford Fiesta MK7 Dashboard Front Display Screen Head Unit 8A6T18B955BK
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Mercedes SLK R171 Control Unit Module DC UHI MOST A2118701885
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Mini Cooper S R52 R53 Gearbox Basic Module Control Unit EGS 7524695
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Part no. A6519007600-2
Mercedes W176 A200 CDI BlueEFFICIENCY OM651.901 Engine Module ECU A6519007600
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Part no. 7808778-1
Mini Cooper D R55 R56 Diesel W16 Diesel ECU Kit DDE 7808778 CAS3 + Key Manual
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Part no. 6946989-2
Mini R50 R52 R53 6-Disc CD Changer Multichanger with Magazine 6946989
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Part no. 8583423-1
Mini Cooper D R60 R61 N47N 112HP Engine ECU Kit DDE 8583423 CAS3 Key Automatic
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Part no. 6915047
BMW E46 E39 E38 E83 E53 E85 E86 Control Unit Voice Input System Module 6915047
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Part no. 9393660
BMW F10 Central Gateway Module Control Unit Lear ZGW-02 4SK 9393660
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Part no. 04L907309L-1
Audi A5 F5 2.0 TDI DETA 190HP Engine Control Unit Module ECU 04L907309L Manual
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Part no. 9131776
BMW 3 Series E90 ECU Body Control Module H1 PL2 JBBFE Junction Box 9131776
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Mercedes Sprinter W906 Wiring Cable Plug OBD Socket A2025405981
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Part no. 7550688
BMW E87 E90 N45 116i Engine Control Unit DME 12147550688 7550688
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Mercedes Citan W415 Bluetooth USB Audio Stereo Radio Head Unit A4158203100
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Part no. 4H0907064FN
Audi A6 C7 Gateway Convenience Module Unit Body Control ECU 4H0907064FN
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BMW E81 E82 E87 E88 E89 E90 E91 E92 Radio Professional CD 9177199
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BMW 3 X1 SERIES E84 E90 E91 E92 Petrol Instrument Cluster Speedo Clocks 9166853
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Part no. 6809545
Mini F56 Interior Electrical Cable Excitement Package Wiring Harness 6809545
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Mercedes W906 311 CDI 109HP 646.985 Engine ECU Kit A6461506372 Key Lock Manual
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BMW 5 7 X5 Series 5 E60 E61 E65 E70 Front Left Seat Height Adjustment Drive N/S
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Part no. 8507623-2
BMW E90 E91 E92 E93 LCI Diesel Alternator Generator 175A 150 14V 8507623
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Audi Q3 8U Q5 8R HELLA XCelerate Ultra AGM Start Stop Car Battery 80Ah 800A 12V
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BMW E70 Door Wiring Front Passenger Door Loom Cables Harness 9229847
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Mini Cooper S R55 R56 R57 N14 1.6 ECU Basic Control Unit DME 7641003 Manual
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Mini Cooper S R60 ALL4 N18 1.6 184HP Engine Control ECU Unit DME 7620985 Manual
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PDC Wiring BMW X4M F98 G02 Rear Bumper Parking Assistance Sensor Harness 8809737
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Mercedes ML W164 Battery Line Lead Wiring Harness Cable Positive A1645402030
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Seat Leon Mk3 Door Module Control Unit Front Passenger's Side Door 5Q4959592B
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VW Golf Mk5 Seat Well Cable Front Left N/S Wiring Loom Harness 1K0971391ES
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Part no. A1669006120
Mercedes ML W166 GLE C292 SAM Module Control Unit ECU A1669006120
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Voltage Converter Mercedes W213 S213 Module Auxiliary Battery Unit A2059052809
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Part no. rhd-7529723
BMW 5 Series E60 E61 520i 525i 530i Petrol M54 Engine Wiring Wire Loom 7529723
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BMW 1 3 Series E81 E87N 123d N47S Wiring Harness Loom Engine 7803799 7802164
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Part no. Varta 85Ah Accumulator
VARTA Accumulator Battery 85Ah 800A 12V Silver Dynamic F18
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Part no. 9181326-1
BMW E81 E87 E90 E91 E92 6-disc CD Changer With Magazine 9181326
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Part no. 6986301
BMW E65 E66 Dashboard Control Display Screen 8,8" 6986301 9137123
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Part no. 5N0971120G
VW Tiguan 5N Door Wiring Cable Harness Loom Front Driver's Side 5N0971120G
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Mercedes W169 A150 M266.920 95HP Engine Control Unit ECU Kit A0034466040 2 Keys
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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 .