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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Part no. 9259425-2
Positive Battery Cable BMW F30 F31 F80 M3 F82 M4 Plus Pole Power Red 9259425
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Mercedes W203 ECU Control Unit Crash Impact Sensor Module Air Module A2038207385
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BMW F30 Rear Bumper PDC Wiring Loom Harness Cables 9224950
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Mercedes-Benz Sprinter W906 Front Right O/S Door Wiring Loom Harness A9060005999
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Mercedes W176 Door Harness Loom Cable Wiring Rear Left Right N/O/S A2465407711
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Starter Motor Mercedes W205 W213 W238 W447 OM654 Engine Diesel A6549061600
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Mercedes W204 C180 Engine Unit BlueEFFICIENCY 271.820 156HP ECU A2711500391
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BMW 3 Series 1 E90 E90N E91 E91N LCI Wiring Loom Set PDC Rear Set Complete
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Mercedes-Benz B-Class W245 180CDI Engine Wiring Harness Loom Cable A6401504033
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Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A1669056001
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Volkswagen Passat B7 Starter Motor Actuator TDI Diesel Engine 02Z911024H
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Mercedes W169 W245 Rain Light Sensor Control Unit Wiring A1695401006
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Part no. 1K2941824
VW Golf 5 V 1K Fuse Box Control Unit Relay Power Distribution Module 1K2941824
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Audi A6 C6 2.0 TDI Alternator Generator 180A 14V 03G903016A
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Part no. 03F903023D
Audi A3 8V 2.0 TDI CRLB Diesel Alternator 03F903023D
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Gateway Module Audi A3 8P Volkswagen Golf Mk6 Control Unit ECU 1K0907530AF
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Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003702
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Part no. 04L903017D
Audi A4 B8 A5 8F 2.0 TDI Diesel Engine Alternator Generator 04L903017D
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Audi A6 C7 PDC Parking Distance Sensor Module Control Unit ECU 4H0919475Q
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BMW E93 Cabrio Convertible Folding Top Roof ECU Module CTM 9281722
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Audi A7 S7 4G8 A8 D4 4.0 TFSI Starter Motor Denso Petrol Engine 079911024
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Alternator Mercedes R172 SLC 43 AMG Petrol OM276 200A Valeo A0009068806
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Part no. 9193753-1
BMW E81 E87 LCI Board Monitor Central Information Display 6,5" 9193753
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Part no. 6976988
Mini R50 R53 Body Control Unit Basic Module BCM BC1RD 6976988
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BMW E60 E81 E90 LCI Adapter Cable CIC System 9185171
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BMW 3 Series E90 320si 173HP DME 7560955 Petrol N45 ECU Kit CAS2 + Key Manual
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Part no. A2218208089
Mercedes W221 Antenna Amplifier Control Unit Module A2218208089
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Part no. 9359248
BMW MINI Cooper One F55 Cable Harness Door Right O/S Loom Driver Side 9359246
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Part no. A1669005517
Mercedes W207 Telematic Communication Control Unit Module A1669005517
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Part no. 6C1T-14K076-CC
Ford Transit Mk7 Handbrake Wiring Cable Battery Wire Cabling 6C1T-14K076-CC
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Part no. A1405420732
Mercedes C140 Headlight Module Ballast Relay Control Unit LCM A1405420732
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Part no. A2045455401
Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401
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Part no. 7N0907530AN
Volkswagen Passat B7 Central Gateway Control Unit Module Relay ECU 7N0907530AN
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Part no. 4M5Q6M091AB
Ford Focus MK2 Mondeo MK4 1.8 TDCI Glow Plug Wiring Loom Cable Wire 4M5Q6M091AB
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Part no. 81A035043
Audi Q2 GA Head Unit Navigation Multimedia Control Unit MMI 81A035043
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Part no. A2059000044
Mercedes C205 Midline Sound Audio Amplifier Unit A2059000044
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Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049004306
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Part no. 8631725-3
BMW F20 F30 F32 120i 320i 420i N20 184HP Engine Unit ECU DME 8631725 Automatic
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Part no. A2139002422
Mercedes W213 Front Door Module Control Module Unit Right O/S A2139002422
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Part no. A2469069600
Mercedes W176 W246 Backup Battery Negative Minus Terminal Lead A2469069600
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Part no. 9168833-1
BMW 5 Series E60 LCI ECU Body Control Module Unit KBM Basis 9168833
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Part no. A2711505533
Mercedes W204 Petrol Engine M271 Engine Wiring Harnes A2711505533
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Part no. 9302356
Battery Cable BMW F10 F11 X3 F25 Lead Negative IBS Wiring 9302356
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Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702951
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Part no. 7811702-4
ECU Unit BMW E81 E82 E87 LCI E88 N47S 123d Engine Module DDE 7811702 Manual
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Mercedes W213 E220 CDI OM654.920 Engine Control Unit ECU A6549001400 Automatic
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BMW E39 523i E46 323Ci M52 170HP Engine ECU Module DME 7500255 Automatic
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Mercedes C118 CLA200 282.914 163HP Petrol ECU Kit A2829003300 Key BCM Automatic
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Part no. 9204525
BMW 1 Series E87 LCI ECU Light Module Control Unit PL2 FRM II Lear 9204525
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Part no. 9171900
BMW X5 E70 X6 E71 Computer Control Unit DVD Player RSE MID PLUS PL4 9171900
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Part no. A6429004701
Mercedes C292 GLE 350d 4-Matic OM642.826 Engine Control Unit ECU A6429004701
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Part no. 1742690-2
BMW E60 E81 E87 E90 E91 X3 E83 Relay Changer Make Contact Salmon Red Set 1742690
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Part no. A6681500033
Engine Wiring Mercedes W168 668942 Diesel Module Loom Harness Cables A6681500033
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Part no. A2229001821
Mercedes GLA X156 Comunication Module Telematic Bluetooth Control A2229001821
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Part no. 9133281-1
BMW E93 Xenon Footwell Light Module Control Unit ECU FRMFA 9133281
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Part no. 6872837
BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6872837
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Part no. 3AA937087R
Volkswagen VW Passat B7 Module BCM Body Control Unit Module ECU 3AA937087R
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Starter Motor Mercedes W415 Citan OM607 OM608 Diesel Engine Starter 233006508R
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Peugeot 307 Citroen Berlingo C4 Glow Plug Wiring Loom Cable Wire 9657700780
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Part no. 8647866
BMW X1 F40 F48 Mini F55 F56 F57 Engine Starter Motor 8647866
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Part no. 9156230-1
BMW E60 E61 E63 Professional CCC Navigation System Controller 9156230 DAMAGE
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Part no. 7510638
BMW X5 E53 E60 E65 Integrated Relay Power Supply Module 7510638
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Part no. A1664403436
Mercedes GLE W166 Wiring Harness Automatic Gearbox Cable Loom A1664403436
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Part no. A1695400706
Rear View Mirror Cable Mercedes W169 W245 Wiring Loom Harness A1695400706
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Part no. 5Q0959107AB
Audi Q2 GA Q3 F3 Rear Boot Trunk Lid Tailgate Control Unit Module 5Q0959107AB
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Part no. A2385407716
Mercedes C238 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2385407716
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Part no. A0009060803
Alternator Mercedes W176 C117 X156 X117 Petrol Engine Generator A0009060803
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Part no. 9807028750
Fuse Box Citroen Berlingo Peugeot Partner BSM Module Control Unit 9807028880
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Part no. 7809000-5
BMW E60 E87 E90 120d 320d 520d N47 ECU Kit DDE 7809000 CAS3 + Key Automatic
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Part no. A2829003200-1
Mercedes W177 A200 M282.914 163HP Engine Control Unit Module ECU A2829003200
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Part no. 7504737
BMW 5 X5 Series E39 E53 Petrol M62 Engine Starter Motor Adapter Cable 7504737
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Part no. 045971803
Engine Wiring VW Polo 9N 1.4 TDI Injector Ignition Loom Harness Cable 045971803
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Part no. 9198826-1
BMW E81 E87 E90 LCI Professional Navigation System Car Computer CIC 9198826
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Part no. 9204536-1
BMW E90 Footwell Light Module ECU Control Unit PL2 FRM Lear 9204536
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Part no. 81A919605B
Audi Q2 GA NAV Multimedia Navigation Display Screen MMI 8,25" 81A919605B
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Part no. 7641661-2
BMW F10 F20 F30 Petrol N20 Wiring Harness Motor Sensor System 2 Module
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Part no. 7849393
Steering Wheel Module BMW F20 F21 F30 F31 F32 Heating Control Unit 7849393
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Part no. 9274570
BMW F20 Head Unit Navigation GPS Sat Nav Infotainment DAB High F10 F30 9274570
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Part no. A4709060300
Mercedes W470 Diesel Engine Starter Motor A4709060300
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Part no. 7811111-3
BMW X3 E83 LCI 2.0d N47 Engine ECU Module Kit DDE 7811111 + EWS + Key Automatic
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Part no. 9185532
BMW E87 LCI CCC CD Professional Navigation System Controller 9185532
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Part no. A1679003118
Door Module Mercedes W205 W213 X253 Front Right O/S Control Unit A1679003118
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Part no. 6980246
BMW X5 E53 Onboard Computer Navigation System Monitor Widescreen 6980246
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MINI Countryman R60 High SPEG Fuse Distribution Box H7 9803979
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Mercedes W221 Fuse Box SAM Module Control Unit Module ECU A2215403862
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Ground Line Mercedes W221 Wiring Battery Starter Alternator Cable A2215409032
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Mercedes-Benz S-Class W220 Aerial Roof Antenna Shark Radio A2208201475
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BMW E81 E82 E84 E87 E89 E90 E91 E92 Radio Business CD 9210508
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Mercedes W205 W213 Engine Alternator Generator M264 Petrol A0009067703
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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549F
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Part no. 7843326
BMW F10 M5 F12 M6 Ignition Engine Wiring Harness Ignition Module Cyl.5-8 7843326
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Part no. A6461500977
Mercedes Vito W639 OM646.980 Engine ECU Control Unit Module A6461500977 Manual
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Part no. A6461501077
Mercedes Vito W639 OM646.980 Engine ECU Control Unit Module A6461501077 Manual
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Part no. 7640005-5
Mini One R55 R56 N12 1.4 95HP ECU Kit Engine DME 7640005 CAS3 + Key Manual
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Part no. 6859714-1
BMW X5 E70 X6 E71 Air Suspension Supply Compressor Valve Control Unit 6859714
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BMW X3 X5 E53 E60 E61 E65 E83 Power Steering Speed Sensor 6762235
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Part no. 9673749980
Citroen Berlingo B9 1.6 HDI Diesel Engine Wiring Cable Harness 9673749980
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Part no. 1368035080
Battery Tray Citroen Relay Fiat Ducato Battery Housing Box Tray 1368035080
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Part no. 9125030
Cable Wiring BMW E81 E87 Petrol N43 Positive Battery Lead Petrol 116i 118i 120i
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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 .