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.
Make
Category
Subcategory
Condition
In Stock
Price
-15%
Part no. A2129005327
Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Changer A2129005327
Promo price
€277.95
€236.26
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A9079001403
Mercedes Sprinter W907 Module Control Unit Radar Sensor A9079001403
Promo price
€237.95
€142.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2115458532
Mercedes W211 W219 Body Control Module Control Unit ECU A2115458532
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 7575650
MINI Cooper One R55 R56 R57 R57 R58 LCI Alternator Generator Petrol 7575650
€28.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 240720782R
Renault Trafic III VIvaro B Wiring Connector Additional Horn Cable 240720782R
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0959793J
Audi A4 B8 Door Module Front Right O/S Control Unit Module ECU 8K0959793J
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2439000800
Drivetrain Module Mercedes H243 Transmission Control Unit ECU A2439000800
Promo price
€161.95
€137.66
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7589354
Mini R55 R56 R57 R59 R60 JCW Engine Starter Motor Actuator 7589354
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7618644
BMW Z4 Series E89 Roadster Petrol N20 Cable Alternator-Starter-Base B 7618644
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2049060105-1
Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 6949229-2
4 x Mini R52 Convertible DWA Door Alarm System Module Control Unit Set 6949229
€28.95
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 02T911024JX
Audi A1 8X 1.2 TFSI CBZA Petrol Engine Starter Motor 02T911024JX
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7520019
Mini Cooper One R50 Petrol W10 W11 Engine Control Unit DME 7520019 Automatic
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2129004518
Door Control Unit Mercedes W204 W207 W212 Front Left N/S Module ECU A2129004518
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 7801711-1
BMW X3 E83 2.0d M47N2 Engine Control Unit Module ECU DDE 7801711 Manual
Promo price
€227.95
€136.77
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A6549009400-3
Mercedes W907 315CDI OM654.920 Engine Unit Module ECU Kit A6549009400 BCM + Key
Promo price
€569.95
€341.97
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 059903019H
Audi A8 D4 Alternator Generator Electrical Unit 3.0 TDI Diesel Engine 059903019H
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2129004910
Radio Head Unit Mercedes W212 CD Audio Player Head Control Unit A2129004910
Promo price
€118.95
€101.11
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2124407952
Mercedes W212 W218 Battery Cable Negative Lead Terminal Harness A2124407952
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. rhd-A1185407902
Mercedes C118 Front Door Left Right N/O/S Electrical Wiring Harness A1185407902
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8365960
BMW E38 E39 E53 Battery Crash Disconnection Control Relay 8365960
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6974310
BMW 5 6 Series E60 E63 E64 Body Control Module ECU Control Unit 6974310
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2469050201
Mercedes C117 X156 Antenna Amplifier Control Unit Module A2469050201
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 2622610
Bluetooth Module BMW F10 F20 F23 F30 Teleservices GPS Telematics Control 2622610
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9355462
BMW X5 F15 Bumper PDC Rear Wiring Loom Parking Sensor Cable 9355462
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9154349
BMW MINI Clubman R55 Cable Wiring Loom Splitdoor Split Door Rear Left N/S
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7618677
Battery Lead Cable BMW E81 E84 E87 RR1 RR2 RR3 Negative IBS 7618677
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 283930431R
Roof Microphone Mercedes Citan W415 Interior Mic Unit Wiring Cable 283930431R
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6904620
BMW 7 Series E65 E66 Diversity Antenna Tuner Amplifier Wiring 6904620
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4L0907290
Audi Q7 4L Gateway Convenience Module Unit Control ECU 4L0907290
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9286365
BMW X1 X2 Series F39 F48 Antenne AM Antenna Amplifier Cable 9286365
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9116801
Hands Free Module BMW E60 E90 Everest Motorola Non GPS Phone 9116801
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6964140
BMW 7 Series E65 E66 Control Unit Door Rear Passenger Side 6933264
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9267958
BMW F20 F30 MINI F56 Control Unit Air Conditioning Module 9267958
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2079011800
Mercedes W204 W207 Control Unit ECU Sensor Module Air SRS Bag A2079011800
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 5A088E6-1
BMW F40 M135i xD B48 306HP Engine Control Unit ECU Kit DME 5A088E6 BDC Key
Promo price
€731.95
€439.17
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8W1907064BL
Audi A4 B9 Body Control Module BCM Comfort Control Unit Power Supply 8W1907064BL
Promo price
€189.95
€113.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8622032
BMW F20 F21 F30 F31 LCI Control Unit Box Cover Mudguard Flap Cap 8622032
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8638552
Supply Module BMW F90 M5 F91 M8 G05 G11 G30 Integrated Control Unit 8638552
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8482940
BMW F30 LCI G11 G30 Battery Cell Supervision Circuit Module Unit 8667593
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2215403110
Mercedes W221 Positive Battery Cable Wire A2215403110
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9270491-BS
PDC Parking Sensor BMW E70 LCI F07 F25 Ultrasonic Black Sapphire 9216207
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A6394408637
Mercedes W639 Rear Bumper PDC Wiring Parking Sensor Loom Harness A6394408637
Promo price
€47.95
€40.76
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8P0035503M
Audi A3 8P Bluetooth Antenna Module Control Unit 8P0035503M
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2118703485
Mercedes W211 Door Module Rear Right O/S Control Unit ECU A2118703485
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8680374-1
BMW F45 Alternator Generator 14V 180A DENSO 8680374
€28.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6838610
BMW 1 Series F40 Aerial probe AM/FM Antenna 6838610
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2045407135
Earth Ground Cable Mercedes W204 C207 Line Strap Battery Lead A2045407135
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5N0971228F
Audi Q3 8U Battery Positive Terminal Cable Plus Pole Wiring Harness 5N0971228F
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A0009053006
Battery Wire Mercedes W205 Negative Cable With Battery Sensor 48V A0009053006
Promo price
€89.95
€53.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9186655
BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 9186655
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7540203
BMW X5 Series E70 Control Unit DME Module Emergency Release Lock 7582630
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 6966551
BMW 5 Series E60 E61 Front Door Wiring Loom Harness Passengers Side 6966549
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9154413-1
BMW E93 LCI Convertible GPS Antenna Aerial Unit Module 9154413
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0959795G
Audi Q5 8R Rear Door Control Module Unit ECU Left Right N/O/S 8K0959795G
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 7853357
Engine Wiring BMW F87 M2 N55 Petrol Loom Module 1 Harness Cable 7853357
Promo price
€170.95
€145.31
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9393667
BMW F10 LCI Body Control Module ECU Unit JBBFEIII V2 PL6 9393667
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8K0959793A
Audi A5 8T Coupe Driver's Door Module Control Unit 8K0959793A
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2055401900
Mercedes W205 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2055401900
Promo price
€80.95
€48.57
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A0009000716
Mercedes Vito W447 Diesel Adblue Module Control Unit ECU A0009000716
Promo price
€104.95
€62.97
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8518569-5
BMW F20 F21 F30 F31 N47N 118d 318d 143HP Engine Control ECU DDE 8518569 Manual
€80.95
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 6857208
Parking Distance Assistant BMW 20 F21 F30 F31 F36 Control Unit Module 6857208
Promo price
€42.95
€36.51
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9374506
Body Control Unit BMW F20 F21 F30 F31 F32 Module REM 9374506
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9367837
Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Control Unit ECU 9367837
Promo price
€170.95
€102.57
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A6401502579
Mercedes W169 200CDI OM640.941 140HP Engine Control Unit Module ECU A6401502579
Promo price
€170.95
€102.57
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9134669
BMW E93 Convertible Seat Control Unit Module ECU 9134669 FSV 7.10.0
Promo price
€51.95
€31.17
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4F0903291
Audi A6 C6 3.0 TDI Suppression Condenser Noise Filter 4F0903291
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9666729580
Peugeot 308 9HP 1.6 Diesel DV6DTED Engine Control ECU Module 9666729580 Manual
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6798242
ICM Module BMW F10 F11 Integrated Chassis Management QL ES Control Unit 6798242
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6928944
BMW X3 Series E83 Battery Positive Cable Fuse Box 61136928944 6928944
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6990090
BMW E61 E63 E90 E92 F06 Mini R55 R56 Trap Circuit Antenna 6990090
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9231442
BMW 2 3 4 Series F22 F30 F32 F36 Antenna Suppression Filter Aerial 9231442
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6948692
BMW E60 E61 E63 Passenger Side Door Airbag Control Module 6948692
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8636054
BMW F20 F30 LCI 120i 320i 330i B48 Engine Wiring Cable Loom Harness 8636054
Promo price
€165.95
€99.57
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9266328
ICM Module BMW F07 GT F01 F02 F03 F04 Air Module Control Unit ECU 9266328
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 7473684
Door Cable BMW F25 F26 Right O/S Wiring Loom Harness Handle Light Lamp 7252538
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9366409
BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9366409
Promo price
€94.95
€80.71
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7290719
BMW F40 F54 Cover Battery Vehicle Trim 7290719
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 6882971
BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Air 6882971
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 3413934-2
BMW X3 E83 Rear Bumper Wiring Loom PDC Harness 1452049
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2469005312
Mercedes X117 X156 W246 Relay Control Unit Module A2469005312
Promo price
€75.95
€45.57
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 06E971627M
Fuel Injector Wiring Audi S4 B8 A6 A7 C7 4G 3.0 V6 TFSI Wiring Cable 06E971627M
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7837273
BMW 1 3 Series E81 E87 E90 E91 PDC Parking Ultrasonic Sensor Le Mans Blau Blue
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A0009820512
Energy Distributor Mercedes W177 W212 Power Control Unit Module A0009820512
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9122432
BMW E60 E61 LCI X5 E70 X6 E71 X3 F25 Rain Light Solar Sensor 9122432
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6974245
BMW MINI Cooper Clubman R55 R55N LCi Retaining Bracket Safety Belt Rear Left N/S
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 5H0971385F
Volkswagen Golf Mk8 CD1 Rear Seat Couch Wiring Harness Cable Loom 5H0971385F
Promo price
€70.95
€42.57
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8355056
BMW 5 X5 Series E53 Fuel Tank Flap Actuator 8355056
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9177754
BMW E60 E87 E90 Telematics Bluetooth Control Unit Module 9177754
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 3D0951253A
VW Volkswagen Audi Seat Skoda Relay Black 5 Pins 12V 50A Set 433 3D0951253A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A1669003208
Mercedes ML W166 SAM Control Unit Rear Fuse Module A1669003208
Promo price
€142.95
€85.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2466200028
Mercedes W176 Battery Support Holder Bracket Mount A2466200028
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9198302
BMW F10 F11 F20 F21 F30 F31 130A Electric Fan Motor Relay 9198302
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 02M911023G
VW Volkswagen Golf 1K 2.0 TFSI BWA Starter Motor 02M911023G
Product currently unavailable
-5%
Part no. A4148200526
Mercedes Vaneo W414 Front Left Right Door N/O/S Control Unit Module A4148200526
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5DV-008-290-00
Mercedes W211 Xenon Headlight Level Control Module 5DV 008 290-00
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 7641652-1
Engine Wiring BMW F10 F31 F32 N20 Engine Sensor Module 1 Harness 7641652
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 6824129
Inverter Wiring BMW F45 Mini F60 Hybrid High Voltage Battery Cable Loom 6824129
Promo price
€70.95
€42.57
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9367376
Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9367376
Promo price
€66.95
€56.91
Free delivery - Tue, Oct 07
If paid before 14:00
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 .