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 F25 F26 F15 F16 Audio Amplifier Harman Kardon Surround Sound System 9393182
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Mercedes W207 Seat Adjustment Motor Front Seat Actuator Unit 0390203330
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Relay Mercedes W124 Indicators Wipers Hazard Lights Relay A2018210047
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Starter Mercedes W204 W212 Diesel OM642 Starter Motor 1005831549
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Seat Ibiza 6J Central Body Comfort BCM Interface Module 6C0937089D
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Starter Mercedes W204 C238 W213 W447 Diesel OM654 Starter Motor A6549061500
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Mini Cabrio R57 PL3 SPEG H4 Fuse Control Unit Module Distribution Box 3455241
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Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F
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BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8580307 CAS3 Key Automatic
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Starter Motor Ford Transit 2.2 TDCI Diesel Engine BK3T11000FA
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BMW G20 G30 F40 F45 Mini F54 F56 F60 Crankshaft Position Sensor 8644376
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Exhaust Flap Control Mercedes C117 W176 W246 Actuator Drive Unit A0009061201
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BMW E87 E90 118i 318i N46 129HP ECU DME 7552176 Manual Transmission
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BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9315684
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BMW F20 F21 F22 Positive Plus Pole Battery Blow Off Cable 9253111
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VW Polo 6R 1.4 CGGB 85HP Engine Control Unit ECU Kit 03C906024CN Manual
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BMW E90 LCI Footwell Light Control Module LCM LED Basis 9224595
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Mini Cooper R56 N12 1.6 120HP Petrol Engine ECU Kit DME 7573701 CAS3 + Keys
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Distributor Box Mercedes W204 W207 W221 Connector Block Control Unit A0045467640
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Porsche Macan 95B Body Control Unit Module BCM 7PP907279CT
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Mercedes W203 W210 W211 Starter Motor Diesel Engine Remy A0051511301
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Audi A4 B8 Sat Nav Multimedia DAB Radio Control Head Unit 4G0035056
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Mercedes W221 DSM ISM Automatic Gearbox Control Unit Module ECU A1644460710
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Ford Transit Connect Alternator Bracket Mount Support 1.8 TDCi 6C1Q-10K019-AC
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Mercedes CL203 Radio Aerial Antenna Amplifier Wiring Cables A2038200389
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Audi TT 8J Audio Amplifier Premium Sound Booster Control Unit Bose 8J0035223C
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VW Volkswagen Golf Mk6 Tiguan Mk1 Audi Q3 Mk1 VALEO Starter Motor 02M911021B
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Wiring Harness Mercedes W246 M270 Petrol Engine Wiring Harness Loom A2701506733
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Mini R55 Footwell Light Module Control Unit ECU PL3 FRM II High EKS 3455701
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Fuse Box BMW E87 E90 E91 E92 E93 Front Power Distribution Relay Box 6906607
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Mercedes CLA C117 Head Unit Sat Nav Navigation Display Screen UB2305000334
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Mercedes C118 W177 W247 Body Control Module BCM V2 A2479001506
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Mini F56 Active Sound Design Radio Audio Amplifer Control Unit Module 9366112
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Mercedes W221 Door Module Front Door Left N/S Control Module A0038206326
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Engine Wiring Renault Trafic 2 Loom Module Harness Cable 275850906R
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Mercedes W124 M103 Bracket Alternator Mount Holder Support A1031550435
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Mercedes W211 Door Module Front Right O/S Control Unit ECU A2118702885
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VW Polo 6R Seat Ibiza Mk4 Starter Motor Bosch 1.2 Petrol CGPB 02T911023R
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Ford Focus Diesel Engine Alternator Generator Engine Unit 8V21-10300-AB
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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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Volkswagen Golf Mk7 1.6 TDI CLHA Engine Control Unit ECU 04L907309B Manual
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BMW F32 Tyre Pressure RDC Control Unit Module ECU 6876227
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Mercedes W166 Radio Sat Nav CD Multimedia Control Central Head Unit A1669005420
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Smart Fortwo C450 Aerial Antenna Rod Radio GPS Antenna Unit A4518200675
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BMW X5 E53 Radio Stereo Screen Multifunctional Display Head Unit 6914605
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Audi A6 C6 Allroad Adaptive Suspension Module Software Control Unit 4F0907553A
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Part no. 9184207-1
BMW E90 E91 E92 E93 Negative Battery Cable Minus Pole 9184207
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Mercedes W203 ECU Control Unit Crash Impact Sensor Module Airbag A2038700026
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BMW F20 F21 F30 F31 Relay Cover Electric Fan Relay Cap 9353066
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Antenna Amplifier Mercedes CLS C219 Pillar C Left N/S Aerial Module A2198200089
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BMW E64 Gateway Module Sensor Air Module Control ECU 6975688
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Mercedes W211 Central Gateway Module Control Unit A2115405645
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Fuel Injector Wiring Audi S4 B8 A6 A7 C7 4G 3.0 V6 TFSI Wiring Cable 06E971627Q
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Battery Cover Citroen Berlingo Peugeot Partner Tray Holder Housing 9663615380
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Mercedes W204 Head Unit Radio CD Player Audio Sat Nav Control A2049001813
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Mercedes Sprinter W906 Fuse Box SAM Control Unit Module A9069004700
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BMW 3 Series E46 Cable Loom Door Rear Left Right N/O/S Wiring Harness 8378338
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Mercedes W221 Door Module Rear Door Control ECU Unit Left N/S A2218704895
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VW Tiguan 5N Central Gateway Control Unit Module Relay ECU 1K0907530S
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BMW E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS 9215952
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Dashboard Monitor BMW X5 E70 X6 E71 Onboard Display Screen 8,8" Unit 9232896
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MINI Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS3 + Key Automatic
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4 x BMW E63 E64 E93 Alarm System Module Sensor DWA Control Unit Set 6950525
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Part no. 8J0959433B
Audi TT 8J BCM Body Comfort Convenience Module Unit ECU 8J0959433B
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VW Volkswagen Golf Mk7 Multimedia MMI Sat Nav Radio Display Screen 3G0919605D
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Part no. 4F0910223C
Audi A6 C6 Hifi Audio Sound Speakers Amplifier Control Unit ECU 4F0910223C
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Volkswagen Golf MK 7 Audi A3 8V 1.4 Alternator Petrol 04C903023K
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BMW E65 E66 Front Seat Occupancy Sensor Mat 6914666
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Mercedes Vito W447 Heater Blower Motor Fan Resistor A4479063000
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BMW X3 F25 X4 F26 Dashboard Monitor Onboard Central Display Screen 6,5" 9294309
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Mercedes Vito W639 Suspension Level Control Unit Module ECU A6394460317
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Front Air Module Mercedes W205 X253 SRS Control Unit ECU A2059009627
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Alternator Mercedes W212 Engine Generator 220A Valeo A0009063522
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Mercedes W205 W213 Actuator Drive Exhaust Flap Control Unit A2139068601
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Mercedes W204 Dashboard Dash Navigation Central Display Wiring Cable A2045405709
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BMW F07 F10 F11 N47N Diesel Alternator Generator Engine 220A Valeo 8507625
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BMW E46 E60 LCI E83 E87 M47N2 Diesel Starter Motor 7787356
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Engine Starter Motor BMW X5 E70 LCI F01 N57 Diesel Starter Actuator 8515900
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Mercedes-Benz C W203 Front Bumper Parking Sensor Wiring Loom Cable Harness
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Audi A3 8V Headlight Range Cornering Adjustment Control Module 8V0907357A
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Audi Q7 4L Power Supply Battery Control Module Unit 4L0915181
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Energy Distributor Mercedes W204 W212 W906 Power Block Control Unit A0055461040
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Land Rover Range L322 3.0d M57 Engine Wiring Loom Harness Automatic 7788409
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Audi Q3 8U Boot Tailgate Control module Unit 8U0959107
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BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8603352 Automatic
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Audi A1 8X Positive Battery Overload Protection 8X0915459
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Mercedes W169 Front Bumper Parking Distance Sensor Parktronic Polar Silver 761
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Mercedes-Benz Sprinter W906 Rear Door Licence Plate Lighting Wiring Cable
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Audi A4 B8 Bose Audio AMP Amplifier Module Control Unit ECU 8T0035223AD
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BMW X3 E83 LCI 2.0d N47 Engine ECU Module Kit DDE 7811111 + EWS + Key Automatic
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BMW X5 E70 LCI Light Module Footwell Module FRM3R Lear ECU Unit 9249073
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BMW E30 E31 F01 F02 F10 F11 Top View Mirror Camera 9240274
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Mercedes W176 W246 W166 Windscreen Windshield Rain Sensor Unit A2469002603
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Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman Becker 8E5035223D
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Auto Radio BMW E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9216273
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Mercedes C209 Door Control Module Front Left N/S A2098201926
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Part no. 8589145
BMW F20 F21 F30 LCI 118d 318d B47 DDE Engine Control Unit ECU 8589145 Automatic
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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 .