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. 6824386
Fuse Box Unit BMW F20 F22 F30 F32 Module ECU Control FEM 6824386
Promo price
€89.95
€76.46
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 5G0971104L
VW Volkswagen Golf Mk7 Wiring Loom PDC Rear Harness Parking Sensor 5G0971104L
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 03D903025J-1
Seat Ibiza Volkswagen Polo Mk5 6R 1.2 Petrol Alternator Generator 03D903025J
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A6519003701-1
Mercedes W212 OM651.924 E220CDI 170HP Engine ECU Kit + Key + Lock A6519003701
Promo price
€194.95
€116.97
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A0003427200
Mercedes EQA350 H243 4matic Electric Voltage Converter Module A0003427200
Promo price
€408.95
€245.37
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 9436289
BMW G20 G21 Rear Door Wiring Loom Cable Control Unit Left Right N/O/S 8718245
€32.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 141951253B-2
VW Volkswagen Audi Seat Skoda Relay Unit 4 Pins 12V 40A 141951253B
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9118467
BMW X5 X6 Series E70 E71 Seat Backrest Adjustment Adapter Lead Cable 9118467
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2229001909
Mercedes W205 W222 Door Module Front Right O/S Control Unit ECU A2229001909
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A1765406708
Mercedes W176 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1765406708
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7195768
BMW 7 Series E65 E66 E67 Battery Holder Hold Down Strap Bracket 7195768
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. A2709000900-8
Mercedes W246 B180 270.910 122HP ECU Wiring Loom Harness Cable Plug A2709000900
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. A0009058104-1
Mercedes W176 W205 W246 GLC C253 Front Bumper Sensor Radar Unit A0009058104
€279.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 9364638
Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 9364638
Promo price
€123.95
€74.37
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 1440105280
Citroen Jumpy MK2 Peugeot Expert 1.6 HDI Alternator Wiring Loom 1440105280
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 9459673
Seat Module BMW X4 F26 F20 F30 Front Driver Side Control Unit ECU 7943747
Promo price
€61.95
€37.17
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A2055451500
Power Connection Mercedes W205 W213 C238 X253 Battery Starter Alternator Wiring
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A0015425918-ALB
Mercedes W202 C208 W208 W220 Parking Distance Sensor PDC Almandine Black
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. A6079001800-1
Mercedes W176 A180 CDI OM607.951 109HP Engine ECU Kit A6079001800 Automatic
€398.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A1729008206
Interface Module Mercedes W176 W204 W212 Multimedia Control Unit A1729008206
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9321023
BMW F45 X1 F48 Mini F55 F56 B+ Junction Terminal Power Distribution Box 9321023
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8Y0035465
Audi A3 8Y A4 B9 Q5 FY Harman Speaker Amplifier Booster Sound System 8Y0035465
Promo price
€47.95
€28.77
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 6812250
BMW X1 F48 Door Wiring Loom Harness Cable Front Passenger Side N/O/S 6812250
€42.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 2757771
Mini Cooper R50 R53 R56 R57 R58 Fuel Tank Heat Insulation Plate 2757771
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 7L5035225S
Porsche Cayenne 955 Radio Aerial Antenna Amplifier Unit Rear Left N/S 7L5035225S
€32.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 5G0971175C
Volkswagen Golf Mk7 Rear Tailgate Boot Lid Wiring Adapter Loom 5G0971175C
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 1K0971365CG
VW Volkswagen Golf Mk5 1K Seat Wiring Loom Cable Front Left N/S 1K0971365CG
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A1669008009
Mercedes GLE W166 Rear Door Wiring Control Module Right O/S Unit ECU A1669008009
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9233034-SCG
PDC Parking Sensor BMW X5 E70 F10 F11 F12 Ultrasonic Sensor Space Grey 9231283
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 4H0907401-1
Audi A8 4H 3.0 TDI CDTA 250HP Quattro Engine ECU Kit 4H0907401 BCM + Key + Lock
Promo price
€379.95
€227.97
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 9260874-3
BMW X1 E84 E91 Alarm Sensor Ultra Sonic Module System Black 9260874
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 9387226
Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 9387226
Promo price
€161.95
€97.17
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2319058100
Mercedes SLK R172 Roadster Antenna Amplifier Control Module A2/71 A2319058100
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A1245401850
Mercedes W124 M103.940 Engine Fuse Box Module Unit A1245401850
Promo price
€75.95
€45.57
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6960227
BMW E65 E66 Sensor Air Bag Front Left Door N/S Module Airbag 6960227
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9381114
BMW F20 F21 F30 F31 F32 Mini F56 F57 Seat Control Unit Module Heating 9381114
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A2059007615
Module Mercedes W205 Air Conditioning Control Module A2059007615
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A6081550035
Mercedes W177 Alternator Mounting Bracket Carrier A6081550035
Promo price
€66.95
€56.91
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 5293147
Relay Glow Littlefuse Mega Fuse 250 Amp 5293147
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6990089
BMW 6 X3 Series E63 E83 Radio Antenna Amplifier Suppression Filter
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7514357
BMW Z4 E85 Roadster Cabrio Cable Alternator Starter Base B 7514357
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A1685400830
Mercedes A W168 Petrol Engine Starter Alternator Electrical Cable A1685400830
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 2990415
BMW X1 E84 Front Door Handle Bowden Pull Cable Wiring 2990415
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4G0937517
Audi A6 C7 Fuse Battery Junction Box Fuse Distribution Terminal Centre 4G0937517
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2465400508
Battery Cable Mercedes C117 W176 W246 Alternator Wiring Harness A2465400508
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4H0907658
Audi A3 8V A5 8T A6 A7 Air Quality Sensor Control Unit 4H09076588
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8512500-1
BMW E81 E82 E87 LCI E88 123d Engine N47S ECU Kit DDE 8512500 CAS3 + Key Manual
€336.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 7118854
BMW Z4 Series E85 Cable Loom Wiring Harness Rear Window Heating 7043906
Promo price
€56.95
€34.17
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8A0937530
Audi A6 C6 Fuse Relay Box Module Unit Holder Bracket 8A0937530
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8L0959655L
Audi A3 S3 8L Front Crash Impact Air Module Sensor Unit Module 8L0959655L
€32.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 1Z0035729E
Seat Ibiza 6J Bluetooth Interface Box Control Unit Module ECU 1Z0035729E
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 06K907425B-20
Volkswagen Golf R 5G MK7 2.0TFSI CJXC 300HP Engine Control ECU 06K907425B Manual
€161.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 06K907425B-17
Volkswagen Polo GTI 6R 1.8 TSI DAJA 192HP Engine ECU Kit 06K907425B BCM + Key
€165.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 9383963
BMW F20 F21 Amplifier AMP Audio Sound Booster HiFi 9383963
€113.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 6C1T-10B728-AC-1
Ford Transit Mk7 Battery Crash Disconnection Control Relay 6C1T-10B728-AC
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8T0959795F
Audi A5 8F Window Lifter Module Control Unit Rear Left Right N/O/S 8T0959795F
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 7545877
Battery Cable BMW E60 E61 E63 E64 N62N Alternator Starter Base B+ Lead 7545877
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8580053
Starter Cable BMW G30 G31 G32 Alternator Wiring Starter-Base B+ 8595355
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8574372-3
BMW F30 330d F32 430d N57N 258HP Engine Unit ECU Kit DDE 8574372 Key FEM
Promo price
€213.95
€128.37
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A2239053002
Mercedes Vito W447 Aerial Antenna Amplifier Control Unit Module A2239053002
Promo price
€66.95
€40.17
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2044402232
Mercedes W204 W207 Battery Cable Positive Wiring Harness Loom A2044402232
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9268710-1
BMW F01 Display Screen On-Board Central Information Monitor 10,25" 9241819
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 7640508-2
BMW 1 3 4 Series F20 F21 F30 F31 F32 F33 Cooling Fan Control Unit Radiator
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. A2215408235
Mercedes W221 Door Wiring Front Left Right N/O/S Harness Loom A2215408235
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7515200
Mini Cooper R50 R52 R53 Battery Wire Cable Negative Earth Lead 7515200
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A1669008606
Seat Module Mercedes W176 W246 Front Left N/S Memory Control Unit A1669008606
Promo price
€85.95
€51.57
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A4155404305
Microphone Cable Mercedes Citan W415 Wiring Loom Cable Harness 27083202
Promo price
€56.95
€34.17
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9240945
Mini Cooper D R55 R56 R57 R60 LCI Electrical System Fuse Distribution Box
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 7649090
Mini F54 F55 F56 F57 F60 Petrol Engine Starter Motor 7649090
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6917557
BMW Z4 Z3 E36 E85 Module Radar Burglar Alarm Sensor 6917557 6963225
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 03C972619CG
VW Passat B7 Engine Wiring Loom Cable Harness Injector Module Petrol 03C972619CG
Promo price
€104.95
€62.97
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. A0009061705
Mercedes W205 C63 Petrol Engine 14V 200A Alternator Generator Unit A0009061705
€113.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9128569-2
Wiring Harness BMW E81 E82 E87 LCI E88 Air Valve Air Flap Cable Wire 9128569
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9149843
BMW E81 E87 LCI E90 Hands-Free Bluetooth Module High MULF2 9149843
Promo price
€56.95
€48.41
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 95B955941D
Porsche Macan 95B PDC Parking Sensor Wiring Loom Front Bumper 95B955941D
€165.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9312768
BMW F06 F07 F10 F11 Comfort Module Body Control Unit Module BCM Unit ECU 9312768
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8506281-2
BMW E87 LCI E90 116d 316d N47 Engine ECU KIT DDE 8506281 + CAS3 + Key Manual
Promo price
€89.95
€76.46
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 6949228-2
4 x Mini Cooper R52 Convertible DWA Door Alarm System Module Unit Set 6949228
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 99661510300
Porsche Porsche S 986 Wiper Interval Relay 7 Pins 99661510300
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 4H0915181F
Audi A8L 4H Negative Battery Cable Lead 4H0915181F
Promo price
€85.95
€51.57
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 7627520-1
Mini R55 R56 LCI R60 One N16 1.6 98HP Engine ECU Kit DME 7627520 CAS3 + Key
€237.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 9222071
BMW F07 BCM Body Control Module Unit Controller 9222071
Promo price
€47.95
€28.77
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A0009003505
Module Mercedes W205 Fuel Pump Control Module In Trunk Rear ECU A0009003505
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 80A907247
Audi SQ5 FY Line Keyless Entry Antenna Control Module 80A907247
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. NTG-SCREEN
Mercedes W212 Display Screen Radio Multimedia Navigation Sat Unit NTG4 4+64 GB
Promo price
€237.95
€142.77
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9390835
Sound Amplifier BMW X5 F15 X6 F16 Active Harman Becker Design 9390835
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8649179
BMW X5 F15 Positive Wiring Harness Cable Battery 8649179
Promo price
€89.95
€53.97
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8485065
BMW G11 G12 G14 G15 G16 G30 G31 G32 G38 Positive Battery Cable Wire 8485065
Promo price
€47.95
€28.77
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8K0971687S
Audi A4 B8 Door Wiring Harness Loom Rear Left N/S Cabling 8K0971687S
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6940763
BMW 7 Series E65 E66 E67 Ultra Sonic-Module 6940763
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 7811700-1
BMW 1 3 Series E81 E87 E90 E91 120d 320d N47 Engine Control Unit ECU DDE 7811700
€113.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6935599
BMW 1 3 Series E81 E87 E90 PDC Parking Ultrasonic Sensor Red Japanrot Japan Red
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7514342
BMW E34 Z4 E85 Base B Terminal Point Engine Compartment 7514342
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7616698
Mini Cooper R55 R56 R57 R58 R59 R60 R61 Starter Motor 7616698
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 191906383C-1
Audi VW Volkswagen Seat Skoda Relay Unit Module 4 Pins 191906383C
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4F0907280E
Audi Q7 4L On Board Power Supply Control Module Unit ECU 4F0907280E
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2229002009
Mercedes W205 W222 Door Module Control Unit Rear Left N/S A2229002009
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8K0907247
Audi A6 4G Keyless Entry Amplifier Control Box Module Aerial Antenna 8K0907247
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
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 .