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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Audi Q7 4L Fuse Relay Box Module Electrical Control Unit 4L1937503
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Volkswagen Seat Skoda Audi 2.0 TDI Diesel Engine Starter Motor Valeo 02E911024H
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Starter Mercedes W177 M282 Petrol Engine Starter Motor A2829062400
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BMW E91 Touring HiFi Amplifier Speaker System Control Unit Module 9143161
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Head Unit Mercedes C205 Radio Player USB Sat Nav Harman A2059008430
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Mini Cooper R56 LCI Footwell Light Module High EKS ECU PL3 FRM3R Lear 3457031
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Audi A5 8T Onboard Comfort Supply BCM Control Module Unit ECU 8K0907063DD
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Mercedes W204 W212 W251 Starter Motor 642872 Diesel Engine Starter A0061519801
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Electronics Charging Module BMW E81 E87 E90 Hands Free Charging MULF 6969268
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Mercedes W176 W204 C207 W212 C218 W246 Relay 4-Pin Black Hella 12V A0025428319
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BMW 3 Series E90 E91 E92 325i N52N 218HP ECU Kit DME CAS3 Key 7567362 Manual
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Mercedes W169 A200 M266.960 136HP Engine Control Unit ECU A2661534779 Automatic
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Mini Cooper One R56 High SPEG DC/DC Fuse Distribution Box 3455527
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Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655N
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Audi Q7 4L PDC Parking Distance Sensor Control Module Unit ECU 4L0919283E
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BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9150718
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Mercedes W124 S124 Central Lock Control Unit Module A1248205926
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CD Radio Player BMW X3 Z4 E83 E85 E86 Radio Business CD Audio Unit 9205278
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BMW X5 E70 E87 F10 F11 F15 F25 F30 Diesel Engine Starter Motor 7801203
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Mini F57 Cabrio Control Unit Module Bracket Holder Parking Assistant PDC 9342085
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BMW E90 E91 Central Locking Lock Immobilizer Control Unit Module ECU 7233914
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Mercedes W204 Seat Loom Cable Multicontour Pump Control Front A0009102675
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Ford Transit Connect Mk2 II Radio Stereo CD Player Head Unit F1BT18C815HK
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BMW X5 E53 Amplifier Hifi Speaker System 65128379376 8379376
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BMW 3 5 7 X3 X5 Series E46 E53 E60 E65 E83 M57N Starter Motor 2,0 KW 2344232
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Engine Control Unit Opel Combo 2.0 DTI Diesel Control Module ECU ECM 8973583764
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Mini Cooper One D F54 F55 F56 F57 Engine Starter Motor Diesel Bosch 8570848
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BMW E90 E91 LCI 318d N47N 143HP ECU Kit DDE 8507202 CAS3 Key Manual
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Mercedes C204 Wiring Cable Harness Front Passenger Door Wiring Loom A2044400638
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Audi A3 8Y A4 B9 A6 C8 Alternator Bracket Mount Holder 2.0 TDI 05L903143
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BMW X3 X5 E53 E83 PDC Parking Distance Control Unit Active Module 911942
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BMW 1 2 Series F20 F21 F22 2 Positive Plus Pole Battery Blow Cable 9253111
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BMW E81 E87 LCI 116i 2.0 Engine Petrol N43 ECU Kit DME 7599881 CAS3 Key Manual
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Mini R55 R56 R58 R59 R60 Fuse Box Relay Electrical System Distribution 9213372
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Engine Wiring BMW F20 F30 LCI 118d 318d B47 Loom Harness Cable 8516259
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BMW E90 E91 LCI 320d N47N 184HP ECU KIT DDE + CAS3 + Key 8512047 Manual
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BMW F80 M3 F82 M4 S55 450 HP Engine Control Unit ECU DME 8645445 Dual Clutch
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Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6922801
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Mercedes W205 C350e Hybrid Electric Drive Battery High Voltage Wiring Harness
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BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 MID 9266411
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Steering Switch Cluster BMW E88 E90 E92 Column Indicator Wiper Stalk 9123041
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BMW 1 3 5 6 Series E60 E63 E81 E87 E90 E91 Housing E-Box Fan Blower Motor
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BMW Z4 E85 2.0i N46 150HP ECU Engine Control Kit DME 7552176 CAS2 Key Manual
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Mercedes W168 W203 W211 W218 Relay Unit 5-Pin Yellow Hella A0025421219
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Mercedes W221 Head Unit Radio Player Media Navigation DVD Changer A2218702686
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Mercedes-Benz E W210 Estate CDI Gearbox Control Module Unit ECU A0305454932
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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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TV Tuner Mercedes ML W164 W211 CLS C219 Video Control Unit Module A2118704390
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Part no. 7607685-4
Mini R56 LCI One 55KW N16 75HP Petrol Engine ECU Kit DME 7607685 CAS3 + Keys
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Mini One R56 LCI R60 N16 98HP Engine Control Unit ECU DME 7619335 Manual
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BMW 1 Series E87 Footwell Light Module ECU Control Unit NSW PL2 FRMFA 6956586
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Ford Transit Connect Air Module Control Unit ECU 2T1T-14B321-AC
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Alternator Generator BMW X5 E53 E60 E61 E63 E65 N62 Petrol Engine 180A 7540992
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Audi A5 8T A4 B8 8K 2.0 TFSI CDNC 211HP Engine ECU Kit 8K2907115P Key + Ignition
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BMW E60 E61 Positive Battery Cable Plus Pole Lead 6955061
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Mini Cooper S R55 R56 R57 N14 1.6 174HP ECU Kit DME CAS 3 + Key 7587548 Manual
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BMW F20 F21 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8630125 Manual
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PDC Module BMW E38 Parking Assist Distance Control Module Unit ECU PDC 8372271
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BMW E60 E90 330i 530i N52 258HP ECU Kit DME 7553166 + CAS2 + Key Automatic
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BMW E65 E66 Navigation Sat Nav GPS System DVD Player 6948983
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Head Unit BMW F07 GT Car Infotainment Computer Sat Nav Multimedia DAB 9275510
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BMW E81 E82 E84 E87 E88 E90 E91 E92 Power Distribution Box 6936649
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Part no. 6929760-1
Mini Cooper R52 Cabrio Aerial Base Roof Antenna 6929760
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Part no. 9110887
BMW E90 E92 E93 Switch Cluster Steering Column Cruise Control 9110887
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Opel Combo Steering Column Power Steering Control Unit Module ECU 13136672
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Part no. A2044400538
Mercedes C204 Wiring Cable Harness Front Driver Door Wiring Loom A2044400538
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Part no. 6952986
BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6952986
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Part no. 8200621305A
Renault Trafic II Opel Vivaro B 2.0 DCI Diesel Engine Starter Motor 8200621305A
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BMW E64 Convertible Airbag Module Sensor ECU Air Bag Unit 9172020
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BMW 3 5 X5 Series E39 E46 E53 3.0i M54 Generator Alternator 120A VALEO 7501593
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Audi A3 Q3 Volkswagen Golf 1.5 TSI Alternator Negative Cable Ground 5WA971244C
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Battery Cable BMW F45 F46 Negative Lead IBS Wiring Harness 9381606
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Part no. 9249080-1
BMW E87 LCI Footwell Light Control Unit Module ECU Lear FRM3R PL2 9249080
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BMW E87 E90 N46 120i 320i 150HP Engine Control ECU DME 7565300 Manual
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Ford Transit Mk7 2.4 TDCi Diesel Engine Wiring Loom Harness Cables 6C1T12B637CG
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Part no. 51919499
Vauxhall Opel Combo Positive Battery Cable Lead Wire Cabling 51919499
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BMW E60 E61 E65 X5 E70 X6 E71 Control Unit Xenon Light 5DV 009 000-00
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Audi Q5 FY Crash Impact Sensor Unit Module Left Right N/O/S 4N0959651D
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BMW F30 F31 F32 Control Unit Module Active Sound Design 6820696
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Audi A3 8P 1.6 MPI Petrol Starter Motor Engine 02T911023M
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Part no. 7587548-2
Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 CAS 3 + Key Manual
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Mercedes W169 Fuse Box Cover Trim Panel A1695450003
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Volkswagen Golf Mk5 Seat Skoda Air Control Module Unit 1K0909605R
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Part no. 03L903023F
Volkswagen Golf Mk6 Alternator Generator Electrical Unit Valeo 03L903023F
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Rear Module Mercedes C238 PDC Parking Assistant Parktronic Control A0009006616
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Mercedes W163 CL203 W203 Petrol Alternator Generator Valeo 120A A0111546402
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Ford Transit Fuse Relay Box Housing Covering Panel Cover Trim 6C1T14A076E
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Airbag Module Peugeot 307 Control Unit ECU Car Safety Sensor 9650109480
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BMW X3 F25 ICM Control Unit Air Module SRS Airmodule ECU 6853992
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BMW 5 6 Series E60 LCI E63 CHAMP Business System Controller CD Player 9149242
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BMW E60 X3 E83 E87 E90 Unit Glow Plug Module Diesel M47N2 7786821
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Part no. A6519003701-1
Mercedes W212 OM651.924 E220CDI 170HP Engine ECU Kit + Key + Lock A6519003701
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Part no. 7539808
MINI Cooper R50 R52 1.6i W10 116HP Engine ECU Control Unit DME 7539808 Manual
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Part no. 6989078
BMW 5 X3 Series E60 E61 E83 Front PDC Parking Distance Sensor Orientblau Blue
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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 .