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 7 Series E65 Cable Harness Door Rear Right O/S Wiring Loom 6913164
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Mercedes Vito W639 Parking Module PDC Distance Control Unit Sensor A6399003300
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Audi A6 C6 Amplifier Audio Sound Control Unit Module Controller 4F0910223M
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Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
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BMW E65 Passenger Seat Air Module Sensor Control Unit SRS 6960218
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Mercedes ML W163 270 CDI Engine Control ECU Kit Key Automatic A6121536379
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Ford Transit Mk6 Starter Motor Engine Actuator Diesel 2.4 TDCi YC1U-11000-AC
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Wiring Harness Mercedes W212 Dashboard Dash Wiring Cable A2124400613
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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU KIT DDE 7811700 CAS3 Keys Automatic
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BMW 7 Series E65 E66 E67 Sensor B-Pillar Airbag Right O/S 6970894
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Seat Leon FR 5F Dashboard Multimedia DIsplay Sat Nav Screen 5F0919606
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Mercedes W210 Petrol M112 Automatic Transmission Control Module A0245458432
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Fuse Box Mercedes W204 W212 SAM Relay Control Unit Module A2129006012
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Mini Cooper S R53 Positive Battery Cable Plus Pole Wire 1508931
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Mercedes V251 SAM Body Control Module Rear Unit A1649007000
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VW Volkswagen Transporter T5 1.9 TDI Diesel Engine Control Unit ECU 038906016AJ
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Audi Q7 4L 4.2 TDI Quattro Positive HV Battery Terminal Cable Harness 7L0971225
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BMW 3 F30 LCI 330e Hybrid KLE Convenience Charging Control Unit ECU 8674691
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Fuse Box Mercedes W204 W212 Front Relay Control Unit Module SAM A2129003814
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Mercedes W221 Parking Aid Sensors Control Unit Module A2215407545
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Mini Cooper F54 F55 F56 F60 Radio CD Player Media Head Unit Alpine 9344044
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Audi S8 D3 Multimedia Display MMI Mechanism Carbon Fiber Look 4E0919603K
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BMW E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9163348
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Renault Trafic 3 Vauxhall Vivaro B Airbag Module Air Bag Unit ECU 985106142R
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BMW E39 6-disc CD Changer without Magazine 6908948
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BMW F30 330e HV Accumulator Battery Clamp Pyro Fuse Auxiliary Connector 9343605
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BMW X4 F25 F36 F85 F15 Shark Roof Fin Antenna Aerial Module Unit 9291486
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Navigation Screen Mercedes W212 1 Head Unit Sat Nav Center Display A2129005000
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Mercedes W639 OM651.940 136HP Engine Unit Module ECU Kit A6511501879 Key Lock
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BMW F46 220dX B47 190HP Engine Control Unit Module ECU DDE 8589145 Automatic
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BMW X3 E83 Wiring Harness Engine Loom Wire Gearbox Module 3412244
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Mercedes CL203 CLC 350 M272.960 272HP Engine Module ECU Kit A2721531291 2 Keys
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Audi S1 8X 2.0 TFSI CWZA 231HP Quattro Engine Control Unit ECU 06K907425C
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Mercedes W204 C180 Kompressor 271.952 156HP Engine Control Unit ECU A2711504879
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BMW E39 E46 E81 E87 E90 Hands-Free Electronics Charging Module MULF 9133329
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BMW F10 F11 550i F12 F13 650i N63 408HP ECU Kit DDE 8610680 Key CAS4 Automatic
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Audi A7 4G Seat Cable Front Left Right N/O/S Wiring Loom Harness 4G8971365
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BMW 5 6 E60 LCI E63 Radio CHAMP Business CD Player System Controller 9192680
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Mercedes C216 W221 Display Screen Multifunction Navi Command A2218206389
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BMW F10 F11 F12 Central Gateway Module ECU Control Unit Lear ZGW-02 High 9267514
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BMW 3 Series F30 F80 M3 Boot Trunk Lid Tailgate Wiring Loom Harness Cable Set
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Peugeot 3008 Yaw Sensor ESP Rotation Rate Acceleration Control Unit 9664661580
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BMW E60 E87 E90 E91 120d 320d 520d M47N2 ECU Kit DDE 7798180 CAS2 + Key Manual
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Mini One D R50 Diesel W17 88HP Engine ECU Kit DDE 7792544 + EWS + Keys Manual
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BMW E87 Footwell Light Module Control Unit NSW PL2 FRM II Lear 9166707
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Mercedes Sprinter W906 OM651 Battery Wiring Harness Loom Cable A9065403815
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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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Air Module BMW E60 E63 Control Unit Centre Sensor ECU 6952994
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Part no. 6C1T-9K499-AHC
Ford Transit Mk7 2.2 TDCi Engine Wiring Harness Cable Loom 6C1T-9K499-AHC
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045454501
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BMW X5 Series E70 ECU Body Control Module Junction Box High PL4 JBBFEII 9172364
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Head Unit Mercedes GLE C292 Radio CD Player Navigation Media A1669003722
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Mercedes ML W166 Fuse Box Front Relay Control Unit Module A1665402450
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Air Module Unit BMW E60 E61 Sensor Control ECU 6978374
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Relay Mercedes W124 E280 Fuse Box Light Control Relay A1265420332
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Mercedes Sprinter W906 Radio Player CD Audio 10 Stereo Head Unit A9069000004
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BMW F30 F31 330dX N57N Engine Gearbox Module Wiring Cable Loom Harness 8518802
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BMW E87 LCI E90 118i 318i N43 Petrol ECU Engine Control Unit DME 7579142 Manual
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Mini One F56 B38 102HP Petrol Engine ECU Control Unit Kit DDE 8486844 BDC Key
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BMW E90 E91 E92 N52 218HP Engine ECU DME Kit 7594483 Automatic
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Part no. 8642761
Integrated Supply Module BMW F40 X1 F48 Mini F55 F56 Control Unit Z11 8642761
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Mercedes SLK R171 Roadster Soft Top Folding Roof Control Module A1718204926
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Part no. 7543083-3
Alternator BMW E60 E61 E87 E90 E91 N52 Generator 155A Bosch LRA02970
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BMW X5 E53 Fuse Box Label Trim Cover Panel Sticker 6920035
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Part no. 9187539-1
BMW 1 Series E87 ECU Body Control Module H2 Junction Box PL2 JBBFE II 9187539
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Mercedes W447 Fuse Box Module Cover Trim Trunk A4475460064
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Part no. 6870360
BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6870360
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Part no. 9152325
BMW E93 Convertible Cabrio Rear Bumper TV Aaerial 9152325
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Part no. 0AM911023N
Audi A3 8V 1.4 TFSI Petrol Starter Motor Engine Actuator Unit 0AM911023N
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Part no. A1669008808
Mercedes W212 Becker Navigation Map Pilot Control Unit Module A1669008808
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Part no. 8K0907064EB
Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907064EB
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Audi A4 A5 Q7 Rear Bumper PDC Parking Sensor Ibis White - Y9C 420919275
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REM Control Unit BMW F20 F30 F31 F34 Electrical Body Control Module V2 9362395
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Part no. 7583225-1
BMW E81 E87 LCI E90 116i 316i 1.6 N43 ECU Kit DME 7583225 CAS3 Key Manual
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BMW E81 E87 E90 E91 E92 E93 Active Steering Control Unit Module 1277022065
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Part no. 0C8927750AL
Audi Q7 4L 3.0 TDI Automatic Gearbox Module Control Unit ECU Diesel 0C8927750AL
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Part no. 8E0971687L
Audi A4 B7 Door Harness Loom Cable Wiring Rear Left Right N/O/S 8E0971687L
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Mini R55 R56 Engine N14 1.6 174HP ECU Kit DME 7610081 CAS3 + Key Manual
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BMW F34 Underfloor Battery Positive Cable Wiring Harness Lead 9308294
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Part no. 9150718
BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9150718
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£BMW E81 E87 E90 LCI 118d 318d N47 Diesel ECU Control Kit DDE 7823422 CAS3 Keys
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BMW X3 F25 X4 F26 Head Unit Basis Media Navigation System Controller DAB 9399454
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Volkswagen Touareg 7L 3.0 TDI Diesel Engine Starter Motor 059911024J
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BMW F10 PDC Rear View Backup Camera Control Module Unit ECU 9288002
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BMW F20 F30 F32 Earth Ground Cable Negative Battery Lead Wiring 7638005
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BMW F30 LCI 330e Hybrid High Voltage EDH Wiring Cable Wire 6824108
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BMW E87 LCI ECU Light Module Footwell NSW PL2 FRM II Lear 9153778
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Part no. 9267421-2
BMW E84 ECU Body Control Module Junction Box PL2RR JBBFE IIIR 9267421
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Part no. 7811700-5
BMW 1 3 Series E81 E87 LCI E90 N47 120d 320d 177HP ECU Kit DDE 7811700 CAS3 Key
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Radio Tape Player Jaguar XJR XJ6 X300 Audio Control Unit Cassette AJ9500R
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Part no. 8E0909518AQ-1
Audi A4 B7 1.8T BZB 163HP Engine Control Unit Module ECU Set 8E0909518AQ
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Part no. 7809000-1
BMW E60 E87 E90 120d 320d 520d N47 ECU Kit DDE 7809000 Control Unit CAS3 + Keys
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Part no. A2661540902
Alternator Generator Mercedes W169 W245 Engine 115A 14V A2661540902
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Part no. 9366412
BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9366412
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Part no. 9282119
BMW F10 CAS 4 Car Access System Control Module Unit ECU CAS4 CG+ELV 9282119
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Part no. A2829062000
Starter Motor Mercedes C118 W177 C247 Petrol OM282 Starter Motor A2829062000
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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 .