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 1 3 Series E87 E90 LCI Professional Navigation Car Infotaiment Computer CIC
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BMW E65 E66 Air Module Control Unit Information ECU 6922464
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8510221 CAS3 + Keys
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BMW F20 F30 F32 125d 325d N47S1 218HP Engine Control ECU DDE 8578077 Automatic
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Audi S5 F5 Blind Spot Radar Distance Control Module Right O/S Master 4M0907590D
£132.95
Free delivery - Wed, Nov 12
If paid before 14:00
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Audio Amplifier BMW X3 G01 X4 G02 Sound System Top Hifi Unit Module 2622874
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VW Volkswagen Tiguan 5N Automatic Gearbox Module Control Unit ECU 09G927750FD
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Mercedes W204 Navigation Radio Player Head Unit Hazard Seat Switch A2049009907
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Engine Basic Control Unit Mini R50 R52 W10 ECU DME 7545789 Automatic
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Audi A6 C6 2.0 TDI Relay Condenser 4FO903291
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Renault Master III Engine Alternator Mounting Bracket Carrier 8200803443
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BMW E81 E87 LCI E90 N47 Diesel Engine DDE ECU Control Unit 7810001 Automatic
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BMW E60 LCI E90 E91 E92 E93 N53 Engine Control ECU Kit Unit DME 7586940 Manual
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Mercedes A-Class W169 Battery Lead Wire Cable Negative A0009050054
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Fuse Box Mercedes W169 W245 Electrical Relay Control Unit A1695450540
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Battery Cable BMW X3 F25 X4 F26 Positive Plus Pole Lead 9321005
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BMW F10 F20 LCI F30 B47 Diesel Alternator Generator Denso 210A 7646814
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Mini R57 LCI Footwell Light Module High EKS ECU PL3 FRM3R Lear 6827072
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BMW G01 G30 G31 Rear View 360 Camera Surround Control Module 9891592
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Audi A4 B8 Aerial Antenna Amplifier Module Right O/S 8H0035225
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BMW 7 Series E65 E66 Seat Occupancy Sensor Mat Electronic Control Unit 6917134
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BMW X5 E70 X6 E71 Computer Control Unit DVD Player RSE MID PLUS PL4 9171900
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BMW Z4 Series E89 ECU Body Control Module H3 Junction Box 61359227186 9227186
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BMW E81 E87 E90 E92 E93 LCI Cable Set Active Steering Wiring Harness 9186555
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8506444 CAS3 + Key
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BMW F22 F23 Active Front Bumper Sensor Pedestrian Protection Unit 9196020
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Audi A3 8V Power Steering Rack Wiring Harness Loom Cable 5Q2971111AP
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Battery Cable BMW F20 F21 F22 Red Positive Plus Pole Blow Off 9253111
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Engine Wiring BMW E87 E90 E91 Petrol N52 Loom Harness Cable Gearbox 7563095
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Mini R55 Convertible ECU Footwell Light Module High EKS PL3 FRM3R 3455896
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BMW E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9224673
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Mercedes W169 SAM Module Control Fuse Box Unit A1695405645
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Mercedes W251 W906 Valve Block Air Suspension Control Unit Module A2513200158
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Pioneer AVH-X5600BT Head Unit Radio Multimedia CD DVD AUX Bluetooth Player
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BMW F30 F31 F32 PDC Wiring Front Bumper Cable Loom Harness 9326026
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Pedestrian Protection Sensor BMW F10 F11 Front Bumper Crash Impact Unit 9261962
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Ford Transit Mk8 Display Screen Radio Multimedia Navigation Sat L1BT-18B955-FB
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Audi A4 B7 A6 C6 Alternator Generator 1.9 TDI Diesel 06F903023HX
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BMW E82 E90 E91 E92 135i 335i N54 306HP ECU Kit DME 7583332 CAS3 Key Automatic
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BMW F10 F20 F30 Battery For Telematics Control Unit Module 9297787
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Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 8T0971365C
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Mercedes W221 Seat Wiring Front Loom Harness Cable A2215400434
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Mercedes W205 W213 Actuator Drive Exhaust Flap Control Unit A2139068601
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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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Alternator Mini Cooper R55 R56 R57 R57 R58 Generator Petrol 7575650
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Mercedes W245 B150 M266.911 95HP Engine Unit ECU A2669000300 Automatic
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Audi A3 8P PDC Parking Distance Control Sensor Module Unit ECU 8P0919283D
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Vauxhall Opel Astra G Fuse Box Covering Trim Panel Lid Housing 09132701
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BMW E90 Footwell Light Module ECU Control Unit PL2 FRM Lear 9204536
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Mini Cooper F54 F55 136HP Petrol B38 Engine ECU Kit DME 8654460 + BDC + Key
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Alternator Belt Tensioner Mercedes W176 OM607 Diesel Holder Mounting Panel
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Mercedes W639 115 CDI OM646.980 150HP Engine Module ECU Kit A6461507072 Key Lock
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Mercedes W163 Air Module System Control Unit Module ECU A1635422918
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Mercedes V177 Automatic Gearbox Control Unit Module ECU A0009004523
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Audi RS3 8V Potential Power Distribution Junction Box Jump Point 1K0937517
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Mercedes W245 B180 CDI 640.940 Engine Control Unit ECU A6409004600 Automatic
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Audi Q5 8R Air Module SRS System Control Sensor ECU Unit 8R0959655E
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Mercedes W176 A200 CDI OM651.930 136HP Engine Module ECU A6519009502 Automatic
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Mercedes-Benz M-Class W164 Battery Ground Earth Strap Cable Wiring A1645400641
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Mercedes-Benz E-Class W210 Positive Plus Cable Wiring Cover Cap A2105451303
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Audi A3 8P 1.6 TDI 105HP CAYC Diesel Engine ECU Kit 03L906023M 2 Keys Manual
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Audi A1 8X Negative Battery Terminal Cable Wiring 8K0915181N
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Audi A3 8V Body Control Comfort Unit Module BCM Unit ECU 5Q0937084AQ
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BMW 5 Series E60 E61 LCI 523i N53 190HP ECU Kit DME CAS3 Keys 7594305 Automatic
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MMI Multimedia Audi A4 B9 A5 F5 Q5 FY Navigation Control Head Unit 8W5035035A
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Mercedes W211 Front Seat Memory Control Unit Module Left Right N/O/S A2118704785
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Battery Cable BMW G01 G02 B47B B47D Alternator Base B+ Lead 8589158
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Mini Cooper R60 R61 ALL4 N18 1.6 122HP ECU Kit Unit DME 8652747 + CAS3 + Key
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BMW E65 730i Petrol M54 Engine Wiring Loom Harness Cable Automatic 7527418
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BMW F10 F11 F12 Central Gateway Module ECU Control Unit Lear ZGW-02 High 9267514
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Mini Cooper R56 Petrol Engine Installation Wiring Loom Harness 8678967
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Audi A5 8T 6 Disc CD Changer Magazine Head Unit MMI 8X0035110B
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Audi RS3 8V 2.5 TFSI Alternator 14V 180A 07K903023J
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Head Unit BMW F01 F10 F20 F30 Navigation Sat Nav High Control Module 9223395
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BMW E64 E64N Cabrio Convertible Folding Top Roof ECU Module 6969008
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Mercedes SLK R172 W212 Rear Fuse Box SAM Relay Control Unit Module A2129004830
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BMW 1 3 Series E81 E87 LCI E90 116i 316i N45N ECU Kit DME 7567321 + CAS3 + Key
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7610009 CAS3 + 2 Keys Manual
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BMW F87 M2 370HP N55 Engine Control ECU Kit DME 8663673 + FEM + Keys Twin Clutch
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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 .