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 5 6 Series E60 E63 E64 Body Control Module ECU Control Unit 6957140
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Radio Head Unit Mercedes C219 W211 CD Player Audio Navi A2118704789
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Mini Cooper One R60 Footwell Light Module AHL EKS ECU LEAR PL3 FRM3R 3456988
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Mercedes W212 M271 Wiring Battery Alternator Starter Harness Cable A2125403005
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BMW 1 3 X1 X3 E83 E84 E87 E90 E91 N45 N46 Petrol Enigne Starter Motor 1,1 kW
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Mercedes W211 S211 Airbag System Control Unit Module ECU
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BMW 7 Series E65 E66 Audio System Controller MD MiniDisc 6941677
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Ford Fiesta MK7 1.6 TDCI Starter Motor Engine Diesel 8V2111000AD
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BMW Z4 E86 Hifi Audio Sound AMP Amplifier Module 9118611
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BMW E60 E61 530i M54 231HP ECU Kit DME 7533651 + CAS2 + 2 Keys Automatic
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Audi A5 8T Front Driver Site Module Control Unit Seat Adjustment Seat 8K0959760D
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BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238
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Battery Cable VW Polo 6R Positive Alternator Starter Wiring B+ 6R0971349Q
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BMW E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9267609
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Citroen C5 Negative Battery Terminal Cable Eatrh Cable Wiring Lead 9800590280
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Audi A5 8T 3.0 TDI CLAB Diesel Engine Starter Motor 059911021K
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Mercedes W211 Door Module Front Right O/S Control Unit ECU A2118701026
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Mercedes Vito W639 Parking Sensor Warning Device Display A0015422623
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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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BMW U06 X1 U11 Gearbox Wiring Loom Transmission Cable 5A7A3B9
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Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640
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Mini Cooper R57 R58 R59 Microphone Hands Free Telephone 9167397
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BMW Mini R55 R56 R60 Electronic Components Daytime Running Lights LED 2348833
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BMW 6 Series E63 LCI CCC DVD Sat Navigation System CD Player Head Unit 9170706
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BMW F45 Alternator Generator 14V 180A DENSO 8680374
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BMW 5 6 Series E60 E61 E63 E64 TV Video Module Control Unit 4136192
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Mercedes Vito W639 OM646.980 Engine ECU Control Unit Module A6461500977 Manual
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Mercedes-Benz A B W169 W245 Door Cable Harness Wiring Loom Front Left N/S
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Audi A6 C6 Keyless KESSY Entry Amplifier Box Module Aerial Antenna 4F0907247
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Mercedes ML W163 Stability Controller 4ESP Unit Module ECU A1635458032
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Ignition Coil Mercedes W202 W203 M111 Cable Connector A0001501780
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Dashboard Screen BMW E60 E90 Dash Onboard Monitor Display 8.8" CCC 9145102
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BMW 1 3 Series Mini Cooper E81 E87 E90 E91 R56 Rain And Light Sensor 6922046
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Mercedes W176 W246 Battery Cover Accumulator Trim Panel Lid A2465410100
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Mercedes W168 Vaneo W414 Diesel Engine Speed Starter Motor A0051511601
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Head Unit Mercedes GLA X156 Radio Media Player Navigation Switch A2469000816
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BMW 7 Series E65 E66 6-fold CD Disc Changer Without Magazine 6923547
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Mercedes-Benz S-Class W220 Central Gateway Control Unit Module ECU A2205402445
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Audi A4 B7 Door Card Speaker Harness Loom Cable Wiring Rear 8E0971693P
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BMW 7 Series E65 E66 Sensor B-Pillar Airbag Right O/S 6929976
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Mini Cooper R50 W10 116HP Petrol Engine Control Unit ECU DME 7527610 Manual
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Mini F55 F56 F57 Visual Boost Surround Central Cover Instrument 9388224
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BMW E60 E63 E64 On-Board Navigation Monitor Display Screen 6,5" 9145103
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BMW Z4 Series E85 Roadster Cabrio Sensor B-pillar Airbag Right O/S 6928572
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Audi A4 B8 3.0 TDI CAPA Diesel Starter Motor 059911021C
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Mini One F56 B38 102HP Petrol Engine ECU Control Unit Kit DME 8635624 BDC Keys
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Mini Cooper One R50 R52 Petrol W10 Compact Alternator RTX 7515029
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Audi Q3 S Line BCM Body Control Module Unit ECU 8X0907063AF
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Audi A4 B9 Communication Telematics Control Module Unit ECU 4KE035282H
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Audi SQ5 8R 3.0 TDI CGQB Diesel Engine Alternator Generator 059903018Q
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Parking Sensor Wiring Mercedes W177 V177 Rear Bumper PDC Loom Cable A1775400630
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BMW Z4 Series E85 Petrol M54 Wiring Loom Harness Engine Gearbox Manual 7524106
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BMW E87 E90 118i 318i N46 129HP ECU Kit DME 7565300 + CAS3 + Key Automatic
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BMW E60 E61 E65 E66 Seat Control Module Ecu Sensor 6927275
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Mercedes SLK R172 Amplifier Audio Sound Control Unit Module Harman A1729008612
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BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238
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Mercedes SLK R171 Front Air Module SRS Control Unit ECU A1718204126
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Ford Focus Diesel Engine Alternator Generator Engine Unit 8V21-10300-AB
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BMW E93 ECU Body Control Module H3 Junction Box PL2RR JBBFE IIIR 9229880
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BMW 5 Series E60 Front Seat Module Control Unit 6927271
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Mercedes-Benz S W220 Seat Memory Control Unit Module Front Left A2208203185
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Audi Q7 4M Starter Motor Engine Diesel Valeo 06M911022D
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BMW E90 E92 E93 M3 Engine S65 420HP ECU Control Unit Kit DME 7846409 + CAS3 Key
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Mercedes W221 Air Suspension ABC Control Unit Module A2219009603
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Mercedes-Benz C-Class W203 1 SAM Control Unit Module Fuse Box Rear A0035455201
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Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200386
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Part no. 8K0907063DG
Audi Q5 8R Body Control Comfort Unit Module Unit 8K0907063DG
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Vauxhall Opel Combo Positive Battery Cable Lead Wire Cabling 51919499
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Audi A1 8X 1.2 TFSI CBZA Petrol Engine Starter Motor 02T911024JX
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Footwell Module Mini R56 Cooper Light LOW EKS ECU PL3 FRM3R Lear 3456034
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Renault Trafic III Opel Vivaro B Air Module Control Unit ECU 93868139 985101902R
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Mercedes GLC X253 GLC 220d Diesel OM651 Engine Starter Motor Bosch A6519064800
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Mercedes ML W164 W251 Fuse Box Relay Module Control Unit A1645403572
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Telephone Control Module BMW F30 F32 F36 Telematics Bluetooth ATM ECE 4G 2622584
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Volkswagen VW Golf Mk6 1.6 TDI Alternator Cable Wiring Harness Loom 1K0971349GA
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Part no. 9186171
BMW 5 Series E60 LCI Body Gateway Module KGM E6X High D-Can Lear 9186171
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Part no. 7559178-4
BMW E60 E90 E91 330i 530i Engine N52 ECU Kit DME 7559178 CAS2 + 2 Keys Manual
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Mercedes Sprinter W907 Fuse Box Battery Relay Gruner A0009824823
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Cassette Player Citroen Berlingo Peugeot 206 Audio Head Unit 964544367700
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Sunroof Wiring Volkswagen VW Tiguan 5N Roof Motor Cable Harness 5N0971100R
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BMW X5 Series E53 Light Check Module Control Unit ECU Lear LCM III 6905875
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Ford Transit Connect Negative Battery Terminal Cable Wiring 9T1T-14A280-MBC
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Audi A6 C6 MMI Multimedia Sat Nav Navigation Control Head Unit 4E0035652A
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Vauxhall Opel Combo Positive Battery Cable Lead Wire Cabling 51871153
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Ford Transit Custom Body Control Module BCM Control Unit ECU JK2T-15604-FAE
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Central Information Display BMW F20 F21 F22 F23 Screen 6,5" 9322122
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Citroen Dispatch Alternator Generator Valeo 90A 12V 9655296080
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Audio Amplifier Mini R55 R56 Alpine Hi-Fi System Amplifier Booster 2153319
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Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CC
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Audi Q5 FY Rear Door Wiring Harness Loom Cable Left Right N/O/S 80A971687H
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Audi A4 B8 Bose Audio AMP Amplifier Module Control Unit ECU 8T0035223AD
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BMW X5 E60 E61 E65 E70 Front Left N/S Seat Height Adjustment Drive
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Audi Q7 4L Air Suspension Adjustment Module Control Unit ECU 4L0907553
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BMW E60 E61 E87 LCI E81 E82 X1 E84 E90 E91 N47 Diesel Starter Motor 7798006
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Part no. A2219006702
Mercedes W216 W221 Central Gateway Control Unit Module VST A2219006702
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Part no. A1699010100-2
Fuse Box Mercedes W169 W245 SAM Body Control Module Unit ECU A1699010100
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Mercedes Sprinter W906 Battery Alternator Starter Wiring Harness A9064401241
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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 .