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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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU Kit DDE 8512498 CAS3 + Key Manual
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Mercedes W163 ML 270 CDI OM612.963 163HP Engine Unit ECU A6121531779 Automatic
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BMW E39 523i Petrol M52 Immobiliser EWS 3 Control Module Siemens 8382454
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Door Wiring BMW X3 G01 F97 X4 G02 F98 Cable Harness Rear Left Right N/O/S
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Mercedes GLC X253 GLC 220d Diesel OM651 Engine Starter Motor Bosch A6519064800
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BMW X3 E83 Head Unit GPS Navigation Display Screen Android 12 Auto CarPlay 9"
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Exhaust Flap Control Mercedes C117 W176 W246 Actuator Drive Unit A0009061201
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Audi A4 B7 Aerial Antenna Amplifier Module Left N/S 8H0035225S
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Mini Cooper F54 F55 F56 F60 B38C 1.5 136HP Engine Module ECU DME 5A08C72 Manual
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BMW F20 F21 F30 F31 F32 1 Body Control Unit Module REM 9329701
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Volkswagen VW Golf Mk6 1K Aux Socket Port Switch 5M0035724
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BMW 7 Series E65 E66 E67 Control Unit Voice Input System Module 6941974
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VW Volkswagen Touran 1T 1.4 TSI Starter Motor Petrol Engine Unit 02Z911023G
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BMW F20 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9329702
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MINI Cooper One R50 Control Unit For Radio Remote Control 433MHZ 4109140
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VW Volkswagen Tiguan 5N Parking Brake Handbrake Module Control Unit 5N0907801B
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Platinium Prestige Heavy Duty Perfrormace Accumulator Battery 60Ah 540A
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BMW F30 335i F32 F33 435i N55 306HP Engine Control Unit ECU 8639582 Automatic
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Mini One R56 LCI R60 N16 Engine Control Unit ECU DME 7619335 CAS3 + Key Manual
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BMW F16 Module BCM Body Control Unit 9387233
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BMW F20 F21 Radio BMW Professional CD DAB Player Controller F21 F22 F30 9331211
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Volkswagen VW Caddy 2K Injector Wiring Harness Loom 038971803
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BMW EXIDE 12V Accumulator Battery 70Ah 570A 8386951 8381730
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Mercedes X253 Rear Bumper Electrical Wiring Harness A2535403718
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BMW 7 Series E65 E66 Dashboard Control Display Screen 8,8" 6960096 6967626
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Mini Cooper R57 Footwell Light Module High EKS ECU LEAR PL3 FRM3R 3457428
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BMW E90 LCI Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 6827064
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BMW 1 2 Series F40 F44 IBS Negative Battery Lead 9442117 61219442117
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Mercedes W207 Wiring Loom Harness Cable A2074405834
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BMW 3 Series E46 Wiring Loom Harness Engine Module Ignition Petrol 7518044
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Seat Ibiza 6J Body Control Comfort Unit Module BCM Unit ECU 6R0937087D
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BMW F20 F21 M135i N55 231HP Petrol Engine Control Unit ECU DME 8626472 Manual
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GM Vauxhall Opel Relay 4-Pin Multi Use Glow Plug Unit Magenta 90494959
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Heater Wiring Mini R55 R56 R57 R60 A/C Air Conditioning Harness Loom 3453934
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BMW X5 E53 Headlight Light Check Module Control Unit ECU Lear LCM III 6914655
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BMW Z4 Series E85 Sensor B-pillar Airbag Right O/S 6945158
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Mini Cooper One D R55 R56 W16 Positive Battery Power Cable Lead Wire 7571148
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401
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Mercedes V177 W247 Body Control Module BCM V2 Unit ECU A2479008109
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Mercedes A238 M276 Engine Alternator Wiring Loom Harness A2535400701
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Starter Motor Vauxhall Astra Vectra Insignia 2.0 CDTI Diesel Engine 55353857
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Fuse BoX Mercedes C216 W221 Front Relay Fuse Box Sam Control Module A2165400450
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CD Player BMW E60 E61 M-ASK M Audio System Controller Navigation Radio 6955347
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BMW E87 Footwell Light Module Control Unit NSW PL2 FRM II Lear 9166707
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BMW E87 LCI E90 E91 118i 318i Petrol N43 143HP ECU KIT DME 7599881 CAS3 + Key
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Front Camera Module Mercedes C118 W177 W247 Lane Assist Control Unit A2479007709
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BMW 7 Series E65 E66 Driver's Seat Airbag Sensor Control Unit Module
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BMW 1 Series F20 F21 LCI 116d 116ed B37 Diesel Engine Starter Motor 8572918
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BMW X5 X6 Series E70 E71 Transfer Box Control Unit Module ECU 7605031
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BMW F40 F45 X1 F48 Mini F55 F56 F60 Alternator Generator Denso 120A 8634124
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Vodafone Automotive Cobra 4600 Car Protection Alarm Electronic Module Unit
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BMW E87 LCI E90 116i 316i 1.6 Petrol N43 122HP ECU Kit DME CAS3 Key 7579142
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Mini F60 Crash Pressure Sensor Pedestrian Protection Control Unit Module 6833345
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Head Unit BMW F40 Radio Player Navigation Control Module Harman Becker 5A2BF31
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BMW X3 Series E83 3.0i M54 Automatic Gearbox Basic Control Unit EGS 7532988
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Fuse Box Mercedes W212 Control Unit Power Distribution Electrical A2125407050
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BMW Mini Cooper R55 R56 N12 1.6 Petrol Engine ECU Kit DME 7588502 CAS3 Key
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Seat Leon Cupra 5F Front Seat Belt Seatbelt Pretensioner Right O/S 5F4857706C
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BMW Mini Cooper One R57 High PL3 SPEG DC/DC H5 Fuse Distribution Box 3455534
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VW Volkswagen Tiguan 5N Bluetooth Interface Control Module ECU 3C8035730
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Hifi Amplifier BMW E91 Touring Speaker System Control Unit Module 9253189
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Peugeot Boxer Citroen Relay MK3 Steering Column Switch Cluster 7357564830
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BMW F20 F21 116i N13 136HP Engine Control Unit ECU DME 8610484 Manual
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Surround Camera BMW X3 F25 X5 F15 X6 F16 View Control Unit Module 9365047
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MINI Cooper R50 R52 1.6i 116HP W10 Engine ECU Kit DME 7553735 + Key + EWS Manual
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Mercedes W221 S320 CDI OM642.930 Engine Control Unit ECU Kit A6421502500 Key
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Mercedes W204 OM646 Diesel Engine Wiring Harness Loom Cable A6461503456
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Mercedes W205 X253 Distronic Radar Sensor Cruise Control Unit Module A0009005109
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VW Volkswagen Polo 6R Driver's Side Door Wiring Harness Loom 6R2971120GD
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BMW 3 Series E46 M54 Engine Wiring Harness Module Petrol Automatic 7506791
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BMW E90 E91 E92 E93 LCI Diesel N57 Alternator 150A 7808073 7805432
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM ECU LR01 9387265
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Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Glow Plug Relay Unit Black 8200798585
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Jaguar XF250 3.0 306DT AJV6D Engine Alternator Generator 8X2310300CB
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Volkswagen Caddy 1.6 TDI CAYD C20 102HP Engine Unit ECU Manual 03L906023PC
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Chrysler Grand Voyager Diesel Engine 2.8 CRD Starter Motor 04868860AA
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BMW E90 Max Brose Footwell Light Module Control Unit FRM3R 9263803
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BMW 5 Series E60 LCI ECU Body Control Module Unit KBM Basis 9168833
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Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475AA
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Mercedes W204 Automatic Gearbox EGS Control Module Unit ECU A0005454516
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BMW E63 E64 LCI Driver's Seat Occupancy Sensor Mat Control Unit Module 9126457
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Mercedes GLE 250 AM Tailgate Trunk Control Module Unit A1669008512
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Citroen C4 Starter Motor Diesel Engine 1.6 HDI Actuator Unit 9662854180
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BMW E84 F25 F26 N20 Engine Sensor Module Wiring Cable Loom Harness 7619136
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Mercedes W213 C238 Fuse Box Relay Control Unit Module A2135400414
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Peugeot Expert Citroen Berlingo Diesel Engine Alternator Generator 5705AS
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Audi Q5 8R MMI Music Stereo Radio CD Player Head Unit 8R2035670J
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BMW E81 E87 E90 Hands-Free Electronics Charging Module MULF 6938943
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Mercedes ML W163 Stability Controller 4ESP Unit Module ECU A1635458032
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CD Changer Audi S6 C6 A8 D3 6-Disc Magazine Head Unit MMI 4E0910110A
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Part no. 1480790-2
Mini Cooper One R50 R53 Fuse Relay Electrical Box Housing Without Cover 148079
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BMW i3 I01 Airbag Module ECU Control Unit 9381838
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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 .