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. 9259730-1
BMW E81 E82 E84 E87 E89 E90 E91 E92 Radio Business CD 9259730
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Engine Wiring BMW Z4 E85 E86 N52 Cable Loom Harness 7556886
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Renault Trafic II Control Unit Body Control Module BCM ECU P8200943317
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BMW 1 Series E82 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9229872
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BMW E31 E32 E34 E34 E39 Petrol Engine Starter Motor 1729982
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Mercedes W212 Fuse Box Control Unit Power Distribution Electrical A2125407050
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Ford Transit Custom Mk1 Dashboard Radio Head Unit Display H1BT-18B955-EF
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BMW E70 Body Control Module Unit Junction Box PL4 JBBFEIII R ECU 9286796
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BMW E87 E90 E91 E92 CCC CD Professional Navigation System 9138448
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BMW E87 LCI E90 118i 318i N43 143HP ECU Engine Control Unit DME 7580279 Manual
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Audi A4 B9 MMI Multimedia Sat Nav Navigation Control Head Unit 8W2035043E
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BMW E87 E90 E91 118d 318d M47N2 122HP Engine ECU KIT DDE 7798179 CAS2 + Keys
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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718207226
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DAF 85CF 85.430 XF 315M Starter Motor 1357210
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BMW E87 E90 E91 118d 318d M47N2 Engine ECU Kit DDE CAS2 Key 7801710
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Fuse Box Mercedes W204 W212 Front Relay Control Unit Module SAM A2129003814
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9147387
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Ford Transit MK8 Radio Head Unit Control Panel BK3T-18D815-BG
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BMW 5 Series E61 Body Gateway Module KGM LOW LEAR 9133144
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BMW X5 F15 Rear Fuse Box Distribution Relay Module Control ECU Unit 6819651
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Mercedes W205 W253 CD Radio Audio Sat Nav Navigation Head Unit A2059005036
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BMW E36 E46 Engine Bay Battery Cable Guide 1436340
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BMW E81 E87 LCI Board Monitor Central Information Display 6,5" 9193753
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Mercedes GLA X156 Central Display Infotainment Sat Nav Media Screen A1669008222
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BMW E93 Convertible Cabrio Rear Bumper TV Aaerial 9152325
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Ford Focus Mk3 Antenna Amplifier Antenna Aerial Booster Unit 6G9T-15K602-BB
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Mercedes W209 Convertible Roof Module Folding Top Control Unit ECU A2098205026
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Toyota RAV4 2.0d 1CD-FTV Diesel Engine Control ECU Manual Gearbox 89661-42A10
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Audi Q2 GA Sat Nav Multimedia Control Unit Module SD SIM MIB2 HIGH 81A035035G
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Audi A6 C6 MMI Multimedia Sat Nav Navigation Control Head Unit 4E0035652E
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Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924
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VW Volkswagen Touareg 7P Dashboard Multimedia Display Screen Panel 7P6919603
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Air Module BMW X5 F15 X6 F16 ECU ICM Control Unit 6870277
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Mini R55 R56 R57 Flat Cable Wiring Wire CAS 9158040
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Parktronic Module Mercedes W221 Parking Aid Sensors Control Unit A2215400901
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BMW E85 Battery Lead Positive Cable Plus Pole Wiring Cabling 6935667
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BMW E81 E87 E90 LCI 120d 320d N47 ECU Kit DDE 8506374 CAS3 + Key Manual
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Land Rover Freelander 2 L359 Radio Display Screen Unit DH52-18B955-AC
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Volkswagen Golf Mk8 CD1 Rear Seat Couch Wiring Harness Cable Loom 5H0971385F
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BMW X3 F25 Body Control Module ECU Junction Box JBBFE III V9 9286129
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BMW 1 3 E81 E87 LCI E90 E91 N43 Alternator Generator 170A Petrol NAPA NAL1250
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ECU Kit Mini One R55 R56 R57 N12 95HP DME 7589971 + CAS3 + Key Manual
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Mercedes W213 Brake Wear Indicator Wiring Harness Front Right O/S A2135402405
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Audi A4 B7 YAW Sensor ESP Rotation Rate Acceleration Control Unit 8E0907637
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Audi Q5 FY Rear Boot Trunk Lid Tailgate Control Unit Module ECU 8W8959107B
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Mercedes W211 Door Module Front Right O/S Control Unit ECU A2118702085
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Engine Starter BMW F20 F21 F22 F30 F32 N47N Diesel Motor Bosch
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Mini R50 R52 R53 Radio Boost CD Player Unit Head 6941509
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Audi A5 8T 2.0 TFSI CDNB Automatic Gearbox Module Control Unit 8K0927155AA
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Mercedes C292 GLE 350d 4-Matic OM642.826 Engine Control Unit ECU A6429004701
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Part no. 7595179-8
BMW E81 E87 LCI 120i E90 E91 320i N43 170HP Engine ECU DME 7595179 Automatic
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Mercedes X218 CLS 350CDI OM642.853 Engine Control Unit ECU Kit A6421508900 Key
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Part no. 4H4907357C
Headlight Module Audi A6 C7 A7 A8 Headlamp Range Control Unit 4H4907357C
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Part no. 8614276
BMW F20 F21 F30 LCI M140i 340i Alternator Generator 180A BOSCH 8614276
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Audi A4 B7 A6 C6 Alternator Bracket Pulley Mount Holder 2.7 3.0 TDI 059903143K
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BMW E87 LCI Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 6827064
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Mercedes SLK R170 W202 W208 ESP Control Unit ABS ASR Module ECU A0195453132
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Mercedes W204 W211 W212 S212 Engine Starter Motor A2719060200
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Part no. 8517874-1
BMW 1 Series F20 F21 318d N47N 116HP ECU Kit DDE 8517874 + Key + FEM Manual
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BMW 1 Series E81 Footwell ECU Light Control Module LOW PL2 FRM3R Lear 9159812
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Telematics Module BMW F20 F30 Control Unit Bluetooth Combox ECU 9257151
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Ford Transit Custom Negative Battery Terminal Cable Wiring BK2T-14303-AG
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Audi A3 8V Headlight Range Cornering Adjustment Control Module 8V0907357A
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Part no. 9123041-1
BMW E88 E90 E92 Switch Cluster Steering Column Indicator Wiper Stalk
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Alternator Generator Mercedes W204 W207 Petrol Engine Bosch 150A A0009062003
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Yaw Sensor Mercedes R171 W203 W209 ESP Rotation Rate Unit Module A0055422118
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Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475L
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VW Passat B6 Steering Wheel Steering Column Control Module 3C0953549A
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Part no. 8V0035020H
Audi A3 8V MMI Multimedia CD Player Head Unit Infotainment 8V0035020H
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Part no. 7587548-4
Mini Cooper S R55 R56 R57 N14 1.6 174HP ECU Kit DME CAS 3 + Key 7587548 Manual
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Part no. A1645403572-2
Mercedes W164 W251 Fuse Box Relay Module Control Unit A1645403572
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Part no. 8513242-2
BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8513242 Automatic
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BMW 5 Series E60 E61 Centre Console DTC PDC Switch Center Cluster 9134025
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BMW F10 F30 330d 530d 258HP Engine Control Unit N57N ECU DDE 8577835 Automatic
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Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock
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BMW 5 6 E60 E61 E63 E64 M-ASK M-Audio System Controller CD Player 6950814
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Audio Amplifier BMW F20 F21 F23 LCI I3 I8 Top Hifi Harman Kardon Unit 9382517
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Rear Bumper Antenna BMW E93 E93N LCI 2 Aerial Telephone 6970701
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Mercedes SLK R171 Parking Distance Aid Sensor Control Unit Module A1715451332
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Audi A4 B8 2.0TDI CAHA 170HP Quattro Engine ECU Kit Ignition + 2 Key 03L906022RM
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BMW X3 F25 X4 F26 Dashboard Monitor Onboard Central Display Screen 6,5" 9231321
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Mini F54 F55 F56 F57 F60 Petrol Engine Starter Motor 7649090
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BMW 5 6 Series E60 E61 E63 Airbag ECU Control Unit Centre Vehicle Sensor
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Volkswagen Polo MK5 6R 1.2 TDI CFWA Engine Unit Module ECU 03P906021A
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Integrated Supply Module BMW F40 X1 F48 Mini F55 F56 Control Unit Z11 8642761
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Fuse Box Cover Mercedes W203 W209 Battery Terminal Housing Trim Cap A2035451003
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BMW X1 E84 18d 18dX Diesel N47N 143HP Engine Unit ECU DDE 8574351 Automatic
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Mercedes W176 W246 Battery Junction Block Battery Plus Pole A2469068601
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BMW E87 E90 E91 120i 320i N46 150HP ECU Kit DME 7565300 CAS3 + Key Manual
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Part no. 6965263
BMW 1 3 Series E82 E90 E92 Switch Cluster Cruise Control Stalk Unit 6965263
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Audi A5 8T 1.8 TFSI Starter Alternator Harness Wiring Cable 8K2971228G
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Mercedes W221 Remote Trunk Closing Hydraulic Pump Motor Unit A2218001548
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Audi A1 8X 1.6 TDI CXMA 115HP Engine ECU Kit 04L907309E Ignition + Key Manual
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Part no. 7553166-2
BMW E60 E90 330i 530i N52 258HP ECU Kit DME 7553166 + CAS2 + Key Automatic
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BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9150718
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Part no. 9204536-2
BMW 3 Series E87 LCI Footwell Light Module ECU Control Unit LED XE FRM 9204536
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Part no. A1645450201
Fuse Box Mercedes ML W164 W251 OM642 Diesel Relay Module Unit A1645450201
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BMW 5 7 Series E60 E65 E66 Sunroof Sliding Roof Window Drive Unit Motor
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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 .