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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Ground Line Mercedes W221 Wiring Battery Starter Alternator Cable A2215409032
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Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475AA
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Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475AA
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Audi RS6 C7 4G Air Suspension Module Regulation Control Unit WABCO 4G0907553F
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BMW 1 3 Series E81 E87 E90 E91 E92 E93 Parking Control Module Unit PDC 6982387
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Audi A5 8T Starter Motor 3.0 TDI CCWA Diesel 059911021D
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Mercedes Vito W447 Negative Battery IBS Cable Wiring A4479050004
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Audi A4 B9 8W Q5 FY Audio External Connector AUX USB Port 8W0035708
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VDC Module BMW F01 F07 F10 F11 F12 Rear Suspension Level Control Unit 6866454
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BMW 1 3 5 Series E60 E81 E87 LCI E90 Hands-free Bluetooth Module High MULF2
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Mercedes W907 315CDI OM654.920 Engine Unit Module ECU Kit A6549009400 BCM + Key
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Mercedes-Benz C Class W203 Automatic Gearbox Transmission Control A0345454332
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Audi A1 8X 1.2 TFSI CBZA Petrol Engine Alternator Generator 04C903023L
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Mercedes ML W164 Transfer Case Box Module Control Unit ECU A1645408662
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Mercedes W169 A160 266.920 95HP Engine Control Unit ECU Kit A2661531491 Key Lock
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Peugeot 207 Airbag Module ECU Control Unit Sensor Air Bag 9663593380
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BMW X5 Series E53 HiFi Audio System DSP Amplifier Module Unit Lear 6933875
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BMW X5 E53 Light Check Module Control Unit ECU Lear LCM IV LWR 6961142
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5X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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VW Volkswagen Touareg 7L Air Module Control Unit ECU SRS 3D0909601F
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Mercedes-Benz E Class W211 Front Right Anti Roll Bar Clamp Bracket A2113231226
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Radio Tape Player Jaguar XJR XJ6 X300 Audio Control Unit Cassette AJ9500R
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Mercedes-Benz W202 W208 W210 ESP + BAS Control Unit Module ECU A0315450732
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530K
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Volkswagen New Beetle 1.9 TDI BSW Engine Starter Motor 02A911024D
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BMW F80 M3 F82 F83 M4 431HP Engine Unit Module ECU DME 8679840 Dual Clutch
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Door Module Mercedes W205 W213 C253 Control Unit Rear Right O/S A1679003718
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Mercedes W211 S211 Airbag System Control Unit Module ECU
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Audi A5 8T Battery Starter Alternator Harness Wiring Cable 8K0971228B
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Audi TT 8J Body Control Comfort Unit Module BCM Unit 8J0959433
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Mercedes-Benz W203 W210 Sprinter W906 Glow Plug Relay A6461536579
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Mercedes W447 Fan Control Relay Control Module Unit A6229000400
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BMW X5 E70 Footwell Light Module Control Unit ECU VDM PL4 FRM II Lear 9176826
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Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500
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Mercedes W204 Dashboard Dash Navigation Central Display Screen Monitor
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Audi A4 B7 Audio Radio Aerial Amplifier Control Unit Harman Becker 8E9035223D
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BMW X5 E53 Basic Body Control Unit Module GM3 6946947
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BMW E91 NSW PL2 FRMII Lightning Control Unit Module (LCM) 9159811
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Mini Cooper S R56 N14 1.6 174HP ECU Kit DME 7641003 + CAS3 + 2 Keys Manual
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Audi A3 8V A4 B9 Telephone Antenna Amplifier Module Unit Booster 4M0035507
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Volkswagen Passat B7 CAXA 122HP ECU Engine Control Unit Automatic 03C907309E
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Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2129003314
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Mercedes Vito W447 Transmission Gearbox Control Unit Module ECU A4479002707
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Body Control Unit BMW F01 F10 F11 F12 Module ZGW-01 High Central Gateway 9213187
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Fuse Box Mercedes W204 W212 Front Relay Control Unit Module SAM A2129003814
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BMW 1 3 5 Series E87 LCI E90 E60 Hands Free Bluetooth Module High MULF2 9178898
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BMW E34 E36 E39 E46 Starter Motor 1,4KW BOSCH 1740374
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BMW F10 F20 F30 Head Unit Basis Media Navigation Headunit 8791692
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BMW E60 E90 Dashboard Dash Onboard Monitor Display Screen 8.8" CCC 9145102
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Parking Module Mercedes W203 C209 Parktronic Control Unit A2035454932
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Audi SQ5 8R Starter Alternator Engine Wiring Loom Cable 3.0 TDI 8R0971228BG
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BMW E90 E91 E92 E93 LCI Diesel Alternator Generator 175A 150 14V 8507623
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Mercedes CL203 Head Unit CD Player Radio Audio Controller Unit A2039000000
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Mercedes Sprinter W907 311 CDI 651.958 114HP Engine Control Unit ECU A6519007103
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Mercedes C207 Coupe Module Rear Window Regulator Lifter Control Unit A2079003600
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Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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Mini Cooper R55 R56 R57 N12 1.6 120HP ECU Kit DME 7589971 + CAS3 + Key Automatic
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Volkswagen Touareg Yaw ESP Rate Sensor Module Unit Control ECU 7H0907652
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Mercedes C140 W210 Multifunctional Purpose Relay Fuse Unit Module A0015427419
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Ford Transit Mk8 Starter Motor Engine Actuator Diesel 2.2 TDCi CC1T-11000-AB
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Mercedes-Benz C-Class W203 Front Right Door O/S Control Unit Module A2038201285
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Mercedes W204 W212 Tyre Pressure Check Monitor Control Unit Module A0009003704
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Volkswagen Golf Mk7 Audi A3 8V Alternator 14V 140A 1.5 TSI 05E903026B
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Alternator Generator Mercedes W204 W212 M271 Engine Lucas 150A 14V LRA03506
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Mercedes W164 W169 W211 W245 W906 6 Disc CD Changer Player A2118703889
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Audi Q3 8U 2.0 TFSI CULB 180HP Quattro Engine ECU Kit 06K907425C Ignition + Key
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BMW X5 E53 E60 E61 E63 E65 E70 Valvetronic VVT Control Unit Module 7532878
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Mercedes W203 W211 Diesel Engine Starter Cable Wiring A2035401335
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BMW E46 Inclination Indicator Alarm Tilt Sensor Control Module 8386932
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Alternator BMW E90 E81 E87 E85 Petrol Engine N45 N46 Alternator 150A 7533270
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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 .