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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Mercedes CLS W219 Head Unit CD Player Navigation Radio Audio Unit A2119060700
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Mercedes W205 SAM Module Comfort Control Unit ECU A2229007009
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Control Unit BMW F07 F10 F11 F12 F13 F25 Air Module ECU Unit Continental 9385025
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Starter Motor Ford Transit Connect 1.8 TDCI Diesel Engine Actuator 2T1411000CC
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8510221 CAS3 + Key
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BMW 5 6 Series E60 E61 LCI E63 E64 M5 M6 Earth Cable Starter Battery 7835548
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AUDI Q7 4L Lane Assist Module Blind Spot 4L0907566A
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MINI Cabrio R52 R53 Battery Cable Lead Positive Plus Pole Wiring 6942507
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BMW E88 Cabrio Footwell Light Module Control Unit ECU PL2 FRM3R 9251488
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Audi A4 B7 Convertible Rear Speaker Amplifier Blaupunkt Right O/S 8H0035223E
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Negative Lead Battery Cable BMW G11 G30 G31 X3 G01 IBS Wiring Harness 6840519
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BMW 1 3 Series E81 E87 E90 LCI Professional Navigation System Car Computer CIC
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BMW X3 F25 Body Control Module ECU Junction Box JBBFE III V9 Lear 9287218
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BMW E60 E61 E65 E87 E90 Trailer Towing Control Module AHM 4R 9186177
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Mercedes Sprinter W906 Engine Wiring Loom Harness Cable CDI Diesel A6515460161
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Control Unit Mercedes W213 W217 Front Right O/S Door Control Module A2139002522
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BMW E90 E91 E92 N52 N52N Engine Starter Motor Valeo 7616500
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MINI S R52 R53 W11 170HP Engine Control Unit ECU DME 7557395 Manual Gearbox
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Audi Q2 GA Towing Hitch Trailer Hook Module Control Unit 5H0907383D
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Audi A4 B8 2.0TDI CAHA 170HP Quattro Engine ECU Kit Ignition + 2 Key 03L906022RM
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BMW F10 F11 Radio Player Alpine Audio CD Champ 2 Head Unit 9272002
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Audi TT FV Entry Keyless Kessy Control Module Unit ECU 3Q0959435B
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Mini Cooper S F55 F56 Petrol B46C B48C Engine Wiring Cable Loom Harness 8678958
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BMW F10 F11 520d N47N 184HP Engine ECU Kit Unit DDE 8574091 CAS4 + Key Manual
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Mercedes W207 Connection Media Interface Cable iPod Wiring Lead A0018276804
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Mini F55 F56 Control Unit Module Active Sound Design 8717601
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MINI Cooper R50 R52 R53 W10 116HP Engine ECU Control Unit DME 7545789 Manual
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BMW E65 Passenger Seat Air Module Sensor Control Unit SRS 6960218
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BMW E82 E90 E91 E92 N54 135i 335i Alternator Generator 180A 7558220
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BMW E81 E82 E87 E88 E90 E91 Radio Professional CD Player 9242502
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Mercedes W169 W245 A150 B150 M266.920 95HP Engine ECU Kit A2661530391 Key Lock
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Earth Ground Cable BMW E90 E91 E92 Negative Battery Lead Wiring 7549396
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Mercedes Vito W639 OM646.980 Engine ECU Control Unit Module A6461500977 Manual
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Mercedes W210 Petrol M112 Automatic Transmission Control Module A0245458432
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Porsche Cayenne 9PA Body Gateway Module ECU Control Unit 7L5907530D
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BMW F22 F30 F32 220i 320i 420i Petrol N20 184HP ECU Kit DME 8631725 + Key + FEM
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Land Rover Freelander 2 Display Screen Multimedia Navigation Sat 6H5210E958
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High Voltage Inverter BMW i3 I01 Hybrid 120Ah Rex Electrical Machine 8488548
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Airbag Control Unit Mercedes W169 W245 System Module ECU A1698204085
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On-Board Screen BMW F30 F31 Central Information Display Monitor 8,8" 9281688
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Fuse Box Mercedes ML W164 W251 OM642 Diesel Relay Module Unit A1645450201
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Door Module Mercedes W204 W212 Rear Right O/S Control Unit Module A2129001327
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Mini Countryman R60 Footwell Light Module High EKS ECU PL3 FRM3R 3457031
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BMW X3 E83 Z4 E85 DVD Player GPS Navi Head System Computer Unit 9154052
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Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit 8K0907064EC
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Mini Cooper S R56 LCI N18 1.6 184HP ECU Kit DME + CAS3 + Key 7648190 Manual
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Audi A3 8P Gateway Control Unit Module ECU 8P0907530B
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BMW E81 E87 E88 E90 E91 Radio Business CD Player 9202152
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Part no. A2219009603
Mercedes W221 Air Suspension ABC Control Unit Module A2219009603
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Mercedes W204 S204 C204 Alternator Generator 150A 14V 1.8 Petrol A0009067902
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Nissan Qashqai Diesel Engine Starter Motor Actuator Starter 23300JG70A
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Audi Q3 8U 2.0 TDI Fuel Pump Sender Control Relay Module Unit ECU 5Q0906121F
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BMW E87 E90 118i 318i N46 129HP Engine Control Unit ECU Kit DME 7552176 CAS2 Key
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Audi Q7 4L Air Suspension Module Regulation Control Unit 4L0910553H
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Part no. 9315094
BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9315094
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BMW X4 F25 F36 F85 F15 Shark Roof Fin Antenna Aerial Module Unit 9291486
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Volkswagen Golf 5 2.0 TDI Engine Control Unit ECU Manual 03G906016HJ
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Audi A1 8X Negative Battery Terminal 8K0915181L
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Part no. 7823344-1
BMW 1 3 4 F20 F21 F30 F31 F32 N47N Diesel Alternator 180A 7823343 7823344
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BMW F20 F30 116i 316i N13 136HP Engine ECU Module DME 7636292 Manual
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BMW X3 F25 Light Module Control Footwell Lightning ECU Unit FRM3 9286157
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Part no. 5Q0919294K
Audi RS3 8V PDC Parking Distance Control Sensor Module Unit ECU 5Q0919294K
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Volkswagen VW Touareg 7L Relay Unit Servotronic Module 9 Pins 7L6907160C
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Part no. 9203081
BMW E63 Light Control Unit Module LCM LM II E6X LWR 9203081
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Mercedes Sprinter W906 OM651.955 163HP Engine Unit Module ECU A6519003403 Manual
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Mini Cooper S R55 R56 LCI Engine Wiring Injection Loom Harness N18 8605894
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MINI Cooper R50 Petrol W10 116HP Engine ECU Kit DME 7542310 EWS3 Key Manual
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BMW F10 F11 550i F12 F13 650i N63 408HP ECU Kit DDE 8610680 Key CAS4 Automatic
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BMW E39 Audio Amplifier Radio Sound System Hifi AMP Control Module 8362444
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Audi A4 B7 1.8 T BFB Petrol Engine Alternator Generator 06D903016AB
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BMW F10 F11 Fuse Box Power Distribution Control Unit Box Rear 9234424
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7811702 + CAS3 + Key Automatic
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Mercedes A238 SAM Control Module Unit ECU A2139008123
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PDC Module Citroen Berlingo Peugeot Partner Parking Distance Unit 9663821680
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BMW F30 LCI F31 F32 Top Hifi Audio System AMP Amplifier Harman Kardon 9393194
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Mini R50 R53 Body Control Unit Basic Module Controller BCM BC1RD 6934293
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BMW X3 X5 E53 E83 EWS III Central Locking Immobilizer Module ECU 6934529
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BMW E85 Battery Lead Positive Cable Plus Pole Wiring Cabling 6935667
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BMW 5 Series E60 LCI Light Control Unit Module LEAR LM II E6X LWR 9203081
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Air Module BMW E60 E63 Control Unit Centre Sensor ECU 6952994
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Mini Cooper R55 R56 R57 CCC CD Navigation Sat Nav Head Unit 9170730
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Alternator Generator BMW F07 F10 F11 FN57N N57Z Diesel Engine Valeo 8570673
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BMW X5 E60 E61 E63 E64 E70 Control Unit Module Passive Go 9134707
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Mercedes W906 SAM Module Fuse Box Relay Control Unit Regulator A0009822223
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Battery Cable BMW X3 F25 Red Positive Plus Pole Blow Off 9225099
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7586134 + CAS3 + Key Manual
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Mercedes SLK R171 Roadster Soft Top Folding Roof Control Module A1718204926
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Skoda Octavia 5E Sat Navi Stereo Radio Audio Head Unit Player Screen 5E0919605J
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Head Unit Mercedes SLK R172 Radio Media Sat Nav Unit Switch Panel A1729000814
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Part no. 8518168-1
BMW E81 E82 E87 LCI E88 123d Engine N47S ECU Kit DDE 8518168 CAS3 + Key Manual
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Part no. 7616119
Alternator Generator BMW F10 F11 F20 F21 F30 F31 N55 Denso 14V 210A 7616119
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Mercedes CLK S Class C209 W209 W221 Roof Antenna Shark Radio Silver A2218205375
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Ford Transit Engine Starter Motor Actuator Starter CC1T14000AB
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Mercedes W212 Air Suspension Control Unit Module ECU A2125406462
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Audi Q7 4L Quattro Diesel 3.0 TDI Charge Air Pressure Valve Actuator 059906627L
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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 .