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. 7789981-1
Engine Alternator BMW E60 E61 E65 E66 Diesel Alternator Generator 170A 7789981
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Ford Focus Mondeo Diesel Engine Alternator Generator Engine Unit 6G9N-10300-UD
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BMW 3 Series E46 1 Touring Rear Bumper PDC Cables Wiring Loom Set 8369503
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Audi S3 8Y Rear Bumper Wiring Harness Cable Loom 8Y4971104BK
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BMW 3 5 X5 Series E39 E46 E53 6-disc CD Changer Without Magazine 6908949
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BMW X3 E83 LCI 2.0d N47 Engine ECU Module Kit DDE 7809196 + EWS + Keys Automatic
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BMW E81 E87 LCI E90 E91 120d 320d Diesel N47 Engine Control Unit ECU DDE 7810000
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Injection Wiring BMW F90 M5 F91 M8 S63M Cyl. 5-8 Loom Valve Ignition 7856775
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Seat Ateca FR 2.0 TDI Engine Alternator Generator Valeo 14V 140A 04L903021D
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BMW F06 F12 F13 M6 F10 M5 S63N 560HP Engine Control Module 8643126 Automatic
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Volkswagen Polo 6R Engine Wiring Loom Harness 03E971612AD
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Mercedes CL S Class C215 W220 Fuse Box Unit Front Right O/S ECU A2205401124
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Part no. 8574351-5
BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8574351 CAS3 Key Automatic
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Part no. 2241253-SGM
BMW 7 E65 E66 Rear Bumper PDC Ultrasonic Sensor Schiefergruen Slate Green 449
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Part no. 4L0910110B
Audi Q7 4L CD Player Changer Multimedia Module Control Unit 4L0910110B
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Part no. 8373945
BMW E46 Saloon Petrol Positive Battery Cable Plus Pole Lead Wiring 8373945
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Part no. 2354693-5
BMW 3 5 X3 Series E46 E60 E65 E83 5 M54 Petrol Engine Starter Motor 2354693
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Part no. A0131549002
Alternator Generator Mercedes W204 W211 OM646 Diesel Bosch 180A A0131549002
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Part no. A2049005903-1
Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005903
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Part no. 6945661-1
Navigation Monitor Screen BMW E60 E90 On-board Information Display 6,5" 6945661
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Part no. 6866454
VDC Module BMW F01 F07 F10 F11 F12 Rear Suspension Level Control Unit 6866454
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Part no. A0009056121
Mercedes W118 W177 W247 Front Radar Distance Control Unit Module A0009056121
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Part no. 96643697XT00
Peugeot 207 CD Player Radio Stereo Head Unit 96643697XT00
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Part no. 9207075
BMW X3 X5 Series E83 E53 Telematics Control Unit Module 9207075
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Part no. A1644405010
Mercedes ML W164 Steering Column Wiring Cable Harness Loom A1644405010
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Part no. A1686103436
Mercedes-Benz A-Class W168 Battery Clamp Holder A1686103436
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Part no. 2T1U-10300-CG
Ford Transit Connect MK1 Focus MK1 Engine Alternator Generator 2T1U-10300-CG
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Part no. 4F0907279B
Audi A6 C6 Body Control Comfort Unit Module BCM Convenience Unit 4F0907279B
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Part no. 8605894
Mini Cooper S R55 R56 LCI Engine Wiring Injection Loom Harness N18 8605894
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Part no. 8586568
BMW F20 F22 F23 Gearbox Transmission Module Harness Wiring Loom Cable 8586568
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Part no. 7613226-4
Mini R60 ALL4 N18 184HP Control Unit ECU DME Kit 7613226 + Key + CAS3, Manual
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Part no. 7835735
BMW E46 M3 Z4 E85 M3.2 Engine Starter Motor Valeo 7834214
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Part no. A2054400534
Mercedes C205 Bumper PDC Wiring Loom Rear Parking Sensor A2054400534
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Part no. 7852338
Ventilation Valve BMW F90 M5 F91 M8 S63M Fuel Tank Pipe Cyl. 5-8 7852338
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Part no. 390203254
Seat Adjustment Motor Mercedes R171 W221 Front Seat Motor Actuator 0390203254
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Part no. 1Z0035156F-1
Skoda Octavia II Multimedia Head Unit Bolero Radio CD MP3 Player 1Z0035156F
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Part no. 5N0035552K
VW Tiguan 5N Antenna Amplifier Module Control Right O/S Unit 5N0035552K
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Part no. A4475406353
Mercedes Vito W447 Battery Cable Diesel OM651 Alternator Wiring A4475406353
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Part no. 1K0971349EM
Volkswagen VW Touran 1T Alternator Main Cable Wiring Harness Loom 1K0971349EM
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Part no. 7570488-2
Mini Cooper 2 R50 R52 R53 W10 1.6 Petrol Engine Starter Motor Remy 7570488
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Part no. 03C903023G-1
Audi Seat Skoda Volkswagen 1.4 TSI Petrol Alternator Generator 110A 03C903023G
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Part no. 02A911024D
Volkswagen New Beetle 1.9 TDI BSW Engine Starter Motor 02A911024D
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Part no. A2215404962
Mercedes W221 CL W216 Air Suspension ABC Control Unit Module A2215404962
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Part no. 03L903024M
Volkswagen Tiguan 5N Golf Mk5 Alternator Generator Diesel Power 03L903024M
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Part no. A1635457432
Mercedes-Benz ML W163 Parktronic Parking Control Unit Module A1635457432
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Part no. 8W0959595N
Audi A4 B9 Door Module Rear Right Left N/O/S Control Unit 8W0959595N
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Part no. 8W0906093F
A4 B9 35 TFSI Fuel Pump Sender Control Relay Module Unit ECU 8W0906093F
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BMW 5 7 Series E38 E39 E65 Navigation Sat Nav System DVD Player Japan 6925449
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Part no. 2D0953257
VW Volkswagen LT 35 Immobilizer Control Unit Module Temic 2D0953257
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Part no. 7823344-2
BMW F20 F21 F30 F31 F32 N47N Diesel Alternator 175A 7823343 7823344
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Part no. rhd-3448327-3
BMW X3 E83 LCI 3 Instrument Cluster Speedo Clocks Diesel Manual 3448327
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Part no. 5Q0907361C
Audi A3 8V Fuse Box Control Module Relay Box 5Q0907361C
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Part no. 6907657
BMW E46 GM V Body Control Unit Module Junction Box 6907657
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Part no. AT1112A650BD
Ford Transit Connect 1.8 TDCi Engine Control ECU Module Manual AT1112A650BD
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Part no. 05L903141
Audi A3 8Y A4 B9 A6 C8 Alternator Bracket Mount Holder 2.0 TDI 05L903143
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Part no. 6965047
*BMW 1 3 Series E87 E90 M-Audio System Controller Navigation Business 6965047
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Part no. 7599881-18
BMW E87 LCI E90 E91 118i 318i N43 143HP Engine Control ECU DME 7599881 Automatic
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Part no. A2139007939
Mercedes W167 W177 W247 Headlight Ballast Control Module Right O/S A2139007939
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Part no. 8W0907064GB
Audi A4 B9 A5 F5 Central Body Control Module BCM Unit ECU 8W0907064GB
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Part no. A0051510601
Starter Motor Mercedes W163 R170 W210 W901 Diesel Engine Actuator A0051510601
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Part no. A2128702751-1
Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702751
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Part no. 8E0057185KX
Audi A4 B7 Radio Media Player Audio CD Head Unit Player Concert 8E0057185KX
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Part no. 6966643
BMW 5 Series E60 E61 Cable Door Rear Left Right N/O/S Wiring Harness 6966643
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Part no. 2241239-SGM
BMW 7 E65 E66 Front Bumper PDC Ultrasonic Sensor Schiefergruen Slate Green 449
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Part no. 7555361-3
BMW E60 E61 E90 E91 325i 525i Petrol N52 ECU Kit DME 7555361 CAS2 + Key Manual
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Part no. 241268711R
Door Wiring Renault Master 3 Rear Sliding Cable Harness 241268711R
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Part no. 4G8971085DP
AUDI A6 C7 A7 FY Sensor Harness Installation PDC Radar 4G8971085DP
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Part no. 4G0035061H
Audi A5 8T Head Unit Radio Player Navigation Control Module 4G0035061H
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Part no. 4G0907553F-1
Audi RS6 C7 4G Air Suspension Module Regulation Control Unit WABCO 4G0907553F
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Part no. A2389058501
Antenna Mercedes A205 Convertible Telephone Antenna Module A2389058501
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Part no. 4154934-1
Mini R50 R53 Radio Boost CD Player Head Unit Autoradio Player 4154934
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Part no. 4H0959793AC
Porsche Macan S 95B-2 Front Door Control Module Unit Driver's Side 4H0959793AC
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Part no. 9664055780
Peugeot 307 Fuse Box BSM Control Unit Module 9664055780
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Part no. 8680374-1
BMW F45 Alternator Generator 14V 180A DENSO 8680374
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Part no. 7649390-1
BMW F45 i8 X2 F39 Mini Cooper F60 Alternator Generator B38 B38X Engine 7649390
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Part no. 8P4963553
Audi A3 8P Front Seat Occupation Sensor Left Right N/O/S 8P4963553
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Part no. 6919066
BMW E39 X5 E53 Radio Business CD Audio Player Head Unit 6919066
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Part no. A2059001336
Mercedes W238 Coupe Convertible Module Control Unit ECU A2059001336
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Part no. 6933867
BMW 7 Series E65 E66 TV Function Video Module Control Unit Tuner 6933867
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Part no. A2085450132
Mercedes-Benz W208 Fuse Box Relay Control Unit Electric Module SAM A2085450132
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Part no. 93455416
Renault Trafic III Vauxhall Vivaro B Positive Battery Cable Lead Wire 93455416
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Part no. 4H0907063BN
Audi A6 C7 2.0 TDI CGLC BCM Body Control Module Unit ECU 4H0907063BN
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Part no. 8645515
BMW X3 F25 X4 F26 Integrated Supply Module 8645515
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Mercedes W470 Diesel Engine Starter Motor A4709060300
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BMW E65 E66 E67 Sensor A-pillar Right Airbag 65776920469 6920469
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Mercedes W164 W204 W211 OM642 Diesel Alternator Generator A6421540402
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Part no. A6519005301-14
Mercedes S212 E220CDI OM651.924 170HP Engine Control Unit ECU Kit A6519005301
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Part no. 9308294
BMW F34 Underfloor Battery Positive Cable Wiring Harness Lead 9308294
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Part no. 7798006-1
BMW E60 E61 E87 LCI E81 E82 X1 E84 E90 E91 N47 Diesel Starter Motor 7798006
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Part no. 1S0919275D-TOG
Audi Q3 8U PDC Parking Distance Control Sensor Tornado Grey-X7P 1S0919275D
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Part no. A0009002013
Mercedes W213 C238 Tyre Pressure Monitor Sensor Module Unit TPMS ECU A0009002013
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Part no. N1WT-14F514-PFD
VW Amarok Mk2 Front Door Wiring Harness Keyless Left Right N/O/S N1WT-14F514-PFD
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Part no. A1705450003
Mercedes SLK R170 Fuse Relay Box Cover Trim Panel Lid Housing A1705450003
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Part no. 03E906033
VW Polo Petrol Engine Control ECU Manual Siemens 5WP1630440 03E906033
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Part no. A2035407907
Mercedes-Benz C W203 200 220 CDI Starter Alternator Wiring Cables A2035407907
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Part no. 8K2907115Q-1
Audi A5 8T 2.0 TFSI CDNB 180HP Engine ECU Kit 8K2907115Q 2 Keys + Ignition
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Part no. A2225404419
Mercedes W222 C238 C257 Electrical Wiring Harness Loom Cable A2225404419
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Part no. 8513250-1
BMW F10 F11 520d Diesel N47N 184HP Engine ECU Kit DDE 8513250 CAS 4 + Key Manual
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Part no. 5C0937819R
Volkswagen Beetle 5C Fuse Box Relay Module Unit 5C0937819R
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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 .