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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Mini Cooper R50 R52 6-Disc CD Changer Multichanger Without Magazine 6913388
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Audi Q7 4L S8 D3 Interface Control Unit Module 4E0035785B
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Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475J
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Mercedes ML W164 Rear SAM Module Control Unit Fuse Box A1645400701
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BMW E46 Positive Battery Cable Plus Pole Lead 6910597
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BMW 5 Series E61 Touring Diversity Aerial Antenna Suppression Filter 6953191
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Mercedes CL203 Radio Aerial Antenna Amplifier Wiring Cables A2038200389
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BMW 1 3 5 7 Series E60 E61 E65 E81 E87 E90 Trailer Towing Control Module AHM 4R
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530D
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Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter NAPA A6519062300
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Seat Module Mercedes W203 CLK W209 W211 Front Memory Control Unit A2118704726
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Seat Leon Mk3 Door Module Control Unit Front Passenger's Side Door 5Q4959592E
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BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
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Seat Module BMW F20 F30 F32 F33 X1 F48 X5 F15 Front Control Unit ECU 9459681
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BMW X3 F25 20dX 190HP B47 Engine Control Unit Module ECU DDE 8588946 Manual
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Audi A4 B8 Radio Media Player Audio CD Head Unit Player Concert 8T2035186P
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BMW X1 E84 Body Control Module M Junction Box PL2RR JBBFE IIIR 9329800
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Head Unit Mercedes W167 W177 Audio Stereo Radio Player Control Unit A1679001414
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Audi A4 B7 Door Harness Loom Cable Wiring Rear 8E1971687L
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Mini Cooper One R55 R56 LCI Aerial Base Roof Antenna Rod Unit 3456089
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Volkswagen Golf Mk6 Front Crash Impact Sensor Module Left Right N/O/S 1KM955557
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Audi A5 8T Sound System Audio Amplifier Amp Unit Bang & Olufsen 8T0035223M
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BMW X3 Series E83 3.0i M54 Automatic Gearbox Basic Control Unit EGS 7532988
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Mercedes-Benz E-Class W210 S210 Battery Cable Box Connector Right A2105460241
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BMW E82 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9227178
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Audi A3 8P CD Player Radio Stereo Head Unit 8P0035195P
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Telematics Module BMW F01 F07 F10 F12 Bluetooth Control Unit ECU 9228272
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Mercedes W211 S211 Airbag System Control Unit Module ECU
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Mercedes SLK R172 C207 Front Fuse Box Relay Control Unit SAM Module A2129006429
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Mercedes Vito W639 Front Left Door N/S Lock Bowden Pull Cable A6397600704
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Mercedes SLK R171 Air Module System Control Unit ECU A1718206526
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Audi A5 F5 45 TFSI QUATTRO Starter Motor Engine Denso 06H911024C
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BMW 5 Series F10 Electric Parking Brake Module Cable Wiring Loom 9325537
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Skoda Yeti 5L Multimedia Head Unit Bolero Radio CD MP3 Player 1Z0035156G
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Audi Q7 4L Navigation Sat Stereo Radio Audio Head Unit CD Player 4E0910888PX
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BMW E60 E61 E87 LCI E81 E82 X1 E84 E90 E91 N47 Diesel Starter Motor 7798006
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BMW 5 Series E60 Light Control Unit Module LEAR LM E6X MIT AHI 6983539
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Audi A6 C6 Front Right O/S Door Harness Cable Loom 4F1971030BD
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Radio Business CD BMW E81 E82 X1 E84 E87 E89 E90 E91 E92 Radio 9177209
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BMW F30 REM Rear Electronic Module Fuse Box Control Unit V2 9293307
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BMW X5 E53 Ground Battery Cable Alternator Starter 7525696
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BMW X3 Series E83 3.0d M57N2 218HP ECU DME Unit 7801217 Automatic Transmition
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Peugeot Boxer Fiat Ducato 2.2 Diesel Battery Alternator Wiring Cable 1378481080
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Audi A3 8P CCM Covenience Control Module Unit Relay Board ECU HELLA 8P0959433F
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Mercedes W203 CD Media Player Radio Audio 20 Phone Head Unit A2038705089
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Mercedes W906 OM651.955 Diesel Engine Wiring Harness Loom Cable A6511508656
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Volkswagen Tiguan 5N Module BCM Body Control Unit Module ECU 3C0937049E
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Mercedes W169 W245 Aerial Roof Antenna Radio Control Unit Module A1698203775
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Mercedes C CLK Class W203 C209 Sam Control Module Fuse Box Rear A2035453401
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Part no. A9015407309
Mercedes W901 OM602 Ignition Lead Electrical Cable Harness A9015407309
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Audi Q7 4M Rear Boot Lid Tailgate Opening Module Cable Wiring Line 4M8962239
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Mercedes W169 W245 Rain Light Sensor Control Unit Module A1718203726
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Volkswagen Golf Mk7 5G Headlight Ballast Module Left Right N/O/S 7P5941572A
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Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479009609
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Mercedes C204 Wiring Cable Harness Front Passenger Door Wiring Loom A2044400638
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BMW Z4 E89 2.3i 3.0i N52N Petrol Engine Wiring Loom Harness Cable 7598076
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Mini R50 R53 Radio Boost CD Player Head Unit Autoradio Player 4154934
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Part no. 8200086130-1
Renault Trafic II Opel Vivaro A 1.9 DCI Alternator Generator 8200086130
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BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear
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Mercedes W221 Front Door Control Module Unit Left N/S ECU A2218706586
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Volkswagen Beetle 5C Fuse Box Relay Module Unit 5C0937819R
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Mini F55 F56 F60 LCI Navigation Touch Screen 8.8" Display Nav Head Unit 9824925
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Audi A4 B7 Door Harness Loom Cable Wiring Rear Left Right N/O/S 8E0971687L
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Part no. 9243919
BMW E81 E87 E90 E91 E92 LCI Radio CD Professional Bluetooth 9243919
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9166667
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Audi Q2 GA Door Module Control Unit Front Passenger Side 5Q0959592K
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Part no. 6819838
BMW F30 LCI G11 G30 High Voltage Battery Charging Unit Module 6819838
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Part no. 9149229
BMW 5 6 E60 E63 LCI Radio CHAMP Professional CD Player System Controller 9149229
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Antenna Wiring Mercedes W211 Rear End Antenna Wiring Harnes A2114409906
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Part no. 58053R
Vespa Piaggio 125 GTS CDI Ignition Module Control Unit 58053R
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Alternator Citroen Berlingo Peugeot Partner Diesel 1.6 Hdi Alternator 9665580680
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Air Module ECU Mini F54 F55 F56 F57 F60 Crash Control Unit Module 9484304
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BMW 1 Series E81 E82 E87N LCI E88 Wiring Cable Air Flap PDC Front 9150891
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Mercedes A B W169 W245 M266 Petrol Engine Wiring Harness Loom A2661502933
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Toyota Yaris Mk1 Cassette Radio Player Head Unit Controller 86120-0D140
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Part no. 6941416
BMW 5 6 Series E60 E61 E63 E64 6-disc Compact CD Changer 6941416
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Part no. A2115459001
Fuse Box Mercedes W211 W219 Junction Relay Control Unit Module SAM A2115459001
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Part no. A2219013000
Mercedes W221 Fuse Box Control Unit SAM Module Relay A2219013000
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Audi S5 F5 Blind Spot Radar Distance Control Module Left N/S Slave 4M0907590D
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Audi Seat Volkswagen Polo 6N Turn Signal Hazard Light Relay 191 1H0953227
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BMW G30 Fuel Pump Module Control Unit ECU 5A25FC9
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Part no. 6918529
Radio Boost Mini R50 R53 Dolby Cassette Tape Player Control Unit Module 6918529
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Audi A5 8T Electric Hand Parking Brake Control Unit ECU 8K0907801N
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Parking Module Audi A4 B8 A5 8T PDC Sensor Control Unit 8K0919475R
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Mercedes ML W164 Diesel OM629 Wiring Alternator Starter Harness A1644406532
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BMW F10 F11 On Board Screen Central Information Display Monitor 10,25" 9289008
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Audio Amplifier Mercedes W211 Audio Gateway Control Unit Module A2118702489
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VW Polo 6R Seat Ibiza Mk4 Starter Motor Bosch 1.2 Petrol CGPB 02T911023R
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Mercedes-Benz C E W203 W211 Parking Sensor Wiring Loom Cable Harness Front PDC
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Mercedes-Benz CLC CL203 Rear Left Right Door Loudspeaker Speaker A2038204002
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BMW E81 E82 E84 E87 E89 E90 E91 E92 Radio Business CD 9259730
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Part no. 3456601-1
Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Unit Head 3456601
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Mini R56 R57 LCI One N16 1.6 98HP Petrol Engine ECU Kit DME 7607685 CAS3 + Key
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Part no. 9224592-1
BMW E87 LCI Footwell Light Module Control Unit PL2 FRM3R 9224592
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Part no. A0025451901
Mercedes W210 Fuse Box Sam Module Control Unit A0025451901
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Part no. JK2T14F642AC
Ford Transit Custom Data Link Obd Port Module JK2T-14F642-AC
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Part no. 9222855
BMW X5 X6 Series E70 E71 Navigation System Car Computer CIC 9222855
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Part no. 6970675
BMW X5 E70 Front Bumper PDC Wiring Loom Cable Harness 6970675
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Part no. 8506356-1
BMW X3 Series E83 LCI 2.0d N47 Engine ECU Kit DDE 8506356 + EWS4 + Key Manual
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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 .