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 A4 B8 2.0 TDI Diesel CAGA 143HP Engine Unit ECU 03L906022MK Automatic
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Audi Q5 8R 2.0 TDI Alternator Generator 14V 180A Valeo 03L903016A
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Audi A8L 4H Rear View Backup Camera Control Unit Module 4H0907441A
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Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404
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Audi TT 8J Body Comfort Control BCM Module Unit ECU 8P0907063AD
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BMW E87 LCI E90 120i 320i N43 170HP ECU Kit DME 7579142 CAS3 Key Automatic
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Mercedes W251 Fuse Relay Electrical Box Housing Cover A2515400524
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BMW X5 E53 Light Check Module Control Unit ECU Lear LCM IV LWR 6961142
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Mercedes W211 Automatic Gearbox Transmission Module Control Unit A0015453116
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MINI Cabrio R52 R53 Battery Cable Lead Positive Plus Pole Wiring 6942507
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Mercedes-Benz W202 C208 W208 Control Unit Bracket Holder Boot Trunk A2025458440
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Mercedes C209 200 Kompressor 271.940 163HP Engine ECU Kit A2711530691 Key Lock
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BMW 5 Series F11 Touring Antenna Aeral Amplifier Diversity 868 MHZ 9276036
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Mercedes W221 Air Conditioning Climate Heater Control Unit Module A2218700326
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Battery Cable BMW F45 F46 Negative Lead IBS Wiring Harness 6821203
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Mercedes Citan W415 109 CDI OM607.951 Engine Control Unit ECU 237104376R Manual
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Audi A8 4E S8 D3 Head Unit Interface Control Module 4E0910732A
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Audi Q7 4L Quattro Diesel 3.0 TDI ALternator Generator 180A Bosch 059903018K
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Renault Trafic Scenic Diesel Starter Motor Mitsubishi 233003248R
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Mercedes CL C215 W220 Sam Control Module Fuse Box Unit A0345459432
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Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069000103
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BMW 5 Series E61 LCI Light Control Module Unit Lear LM II E6X LWR 9180756
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Suspension Module BMW F82 Rear Axle Dynamic Suspension Control Module 6895714
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BMW F10 F11 LCI On-Board Screen Central Information Display 10,25" 9321016
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Mini Cooper S F55 F56 Petrol B46C B48C Engine Wiring Cable Loom Harness 8678958
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Mercedes W221 S320 CDI 642.930 235HP Engine Control ECU A6421507391 Automatic
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BMW E90 LCI M-Audio Controller System Control Unit Module Navigation 9186215
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Door Module Mercedes GLC X253 Rear Door Left Control Module A2059000828
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Audi A5 8T 1.8 TFSI Starter Alternator Harness Wiring Cable 8K2971228G
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BMW Z4 E89 LED Footwell Control Module ECU 9286885
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BMW E61 Touring Body Control Module ECU Control Unit High 9176070
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BMW E90 E91 E92 N52 N52N Engine Starter Motor Valeo 7616500
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Navigation Head Unit BMW E60 E61 CCC CD Sat Nav Player System Controller 9191554
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Mercedes W177 W247 All Wheel Drive Control Unit Module ECU SG MFA2 A2479000910
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BMW Z4 Series E89 Front Bumper PDC Loom Cables Wiring Set 9225771
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Ford Transit Mk8 Fuse Box Power Distribution Relay 2.0 Diesel KK3T-14D068-JD
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BMW X1 Series E84 Wiring Cable Loom Set Rear Door Left Right N/O/S 9191408
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BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9298961
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Switch Cluster BMW E82 E88 E90 LCi Cruise Control Stalk Unit 9110882
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Part no. 9110639
BMW 7 Series E65 E66 Dashboard EXCH Control Display Screen 8,8" 6960096 9110639
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Audi S3 8V Starter Alternator Wiring Harness 5Q0971230HH
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Mercedes ML W164 Gateway Control Unit Gateway Module ECU A1645406745
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VW Volkswagen Golf SV Gateway Control Unit Module ECU GW MQB High 3Q0907530L
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Peugeot 307 1.4 HDI Diesel DV4-TD Engine Control Unit ECU 9647158180 Manual
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BMW Mini Cooper One R57 High PL3 SPEG DC/DC H5 Fuse Distribution Box 3455534
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Ford Transit MK7 2.2 TDCI Diesel Engine Control Unit ECU Manual 6C1112A650AN
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BMW F10 F11 535d F13 640d N57Z 313HP ECU Kit DDE 8578115 Key CAS4 Automatic
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VW Volkswagen Touareg 7P Dashboard Multimedia Display Screen Panel 7P6919603
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BMW 3 Series E36 Cable Harness Door Rear Right O/S Wiring Loom 8379056
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Mercedes ML W164 W251 Air Module SRS Control Unit ECU A1648207426
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BMW E46 Radio Business Cassette Player Audio Control Head Unit 6902659
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MINI Cooper One D R55 R56 Alternator Generator Diesel 150A 7794970
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BMW E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9163348
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Display Screen Citroen Berlingo Peugeot Partner Dashboard Monitor 9803399680
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Renault Trafic 3 BSI BSM Body EMM-T4 L3 Control Unit Module 231A08052R
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Mini Cooper S F55 F56 B48C 192HP Petrol Engine ECU Kit 9897880 BDC + Key
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Seat Ibiza 6J Starter Motor Petrol Engine Electrical Unit Actuator 02M911024R
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BMW E60 Light Control Unit Module LCM LM E6X MAN. LWR Lear 6983536
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Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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Mercedes W246 Airbag Belt Locking Retractor Control Unit Module A2469006018
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BMW X5 E53 3.0d M57N 218HP ECU Kit DDE + EWS3 + Key 7794626 Automatic Gearbox
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Mercedes A209 Fuse Box SAM Control Module Relay Box A2095451701
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Mercedes-Benz A-Class W168 M166 Engine Wiring Harness Loom Cable A1685403706
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BMW E60 E87 E90 LCI N47 120d 320d ECU Control Unit Kit DDE 7823420 CAS3 Key
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Adblue Module Mercedes W447 W906 Control Unit ECU A0009004213
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Audi A5 8T 2.0 TDI CGLC Engine Unit ECU Kit 03L906018JH Key Ignition Lock
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BMW F45 F46 Door Interior Lighting Wiring Harness Cable Front Left N/S 9354069
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Airbag Module BMW E46 X5 E53 Control Unit ECU Side Air Bag 6905491
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Audi A7 4G8 Central Gateway Control Lear Module Unit ECU 4G0907468G
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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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BMW E92 ECU Body Control Module L1 PL2RR JBBFE IIIR Junction Box 9226325
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Fuse Box Mercedes W204 S204 W212 SAM Control Unit Module Relay A2129006724
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Audi A4 B7 Body Comfort Control Module BCM Unit ECU 8H0959433M
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VW Volkswagen Polo 1.2 TSI CBZB Engine Wiring Harness Cable Loom 03F971612
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Mercedes W204 Radio Control Function Button Knob Controller Unit A2048707658
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Peugeot 307 Citroen Berlingo Diesel Engine Alternator Generator 9646321880
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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Bracket Mount 8200527320
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BMW E60 E87 E90 120d 320d 520d M47N2 ECU Control Unit Kit DDE 7801711 CAS2 Key
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Audi A5 8T Starter Motor 3.0 TDI CCWA Diesel 059911021D
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BMW E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 9128184
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BMW G30 G31 Fuse Distribution Box Holder Control Unit Bracket Carrier 9330542
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Mini Cooper D R60 R61 ALL4 N47N 2.0 143HP Engine ECU Kit DDE 8583423 CAS3 Key
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Audi A3 8P 1.9 TDI BLS 105HP Engine Control Module Unit ECU 03G906056S Manual
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BMW X5 E70 CD Player Head Unit CIC DAB Professional Navigation Sat Nav 9257200
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Mini R52 Cabrio Petrol W10 Engine Wiring Loom Harness Module 7510921
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Mercedes W447 W448 W636 W639 Battery Holder Mount Bracket A6395410212
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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 .