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

-40%
Part no. A2218707385
Mercedes W221 Rear DVD Entertainment System Video Player Unit A2218707385
Promo price
€370.95
€222.57
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A2125400382
Mercedes W212 Cover Fuse Box Trim Panel Lid A2125400382
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 8039828
BMW X5 E70 Rear Bumper PDC Parking Sensor Cables Wiring Harness Loom Set 8039828
Promo price
€66.95
€40.17
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. A2049005503
Mercedes C207 Complete Damper Adjustment Control Module ECU A2049005503
Promo price
€70.95
€42.57
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6939287
BMW E60 E61 E63 Air Module ECU Control Unit Centre Vehicle Sensor 6939287
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. A2539009309
Mercedes C253 W293 Rain And Light Sensor Control Unit Module ECU A2539009309
Promo price
€66.95
€40.17
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 8058634
Engine Wiring BMW X3 M F97 X4 M F98 Loom Harness Ignition Module 8058634
Promo price
€237.95
€142.77
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9153806
BMW F01 F02 Rear Heater Blower Motor Resistor 9153806
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 7612860
BMW F20 F21 F30 F31 F32 Battery Holder Bracket Supporting Rail 7612860
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9264573-2
BMW X1 E84 ECU Body Control Module Unit Junction Box H2 PL2RR JBBFE IIIR 9264573
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9187534
BMW E81 Body Control Module Unit ECU L2 PL2 JBBFEII 9187534
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 420919275-1
Rear Bumper PDC Audi A5 Sensor Parking Distance Control 420919275 1706091849
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. A9069005103
Mercedes Sprinter W906 Radio CD Player Audio Bluetooth Head Unit A9069005103
Promo price
€127.95
€76.77
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 1J0919506M
Volkswagen Skoda Seat Audi Radiator Cooling Fan Relay Control Unit 1J0919506M
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6857701
BMW 1 2 3 F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6857701
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. A2059006337
Safety Module Mercedes S205 Airbag Belt Tensioner Control Module SRS A2059006337
€189.95
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A2049057501
Mercedes W204 W212 Dashboard Light Sun Solar Sensor Unit A2049057501
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A2075403434
PDC Wiring Mercedes W204 W207 Parktronic Parking Sensor Cable Rear A2075403434
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A2218702993
Mercedes CL W216 W221 Air Module Control Unit A2218702993
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 9399466
Mini F54 F55 F56 F57 F60 Telematics Control Unit Module 84109399466 9399466
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A1779001704
Mercedes V177 Door Module Rear Right Control Unit A1779001704
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 7928648
BMW G30 LCI Radio Remote Control Receiver Module ECU Unit 434 Mhz 7928648
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A1775401629-1
Mercedes W177 Rear Bumper PDC Wiring Loom Parking Sensor A1775401629
Promo price
€37.95
€32.26
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 9116543
PDC Control Unit BMW E46 Z4 E85 Mini R50 R53 Parking Unit Module 9116543
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 7391042
BMW F10 F30 X1 F48 Mini F54 Rear Tailgate Smart Opener Top Wire Sensor 7391042
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. A1779069601-1
Fuse Box Mercedes W177 W247 Front Relay Engine Control Unit Module A1779069601
Promo price
€123.95
€74.37
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 6951629
BMW Z4 X3 E83 E85 Mini R50 DVD GPS Navigation System Computer 6951629
Promo price
€189.95
€113.97
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 6973115
BMW X1 E81 E84 E87 E90 E91 Parking Control Module Unit PDC 6973115
Promo price
€56.95
€48.41
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6925942
BMW E60 E61 Cable Loom Door Wiring Harness 6925942
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 7N0959795E
Skoda Yeti 5L Door ECU Module Control Unit Rear Left Right N/O/S 7N0959795E
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 7L0959772D
VW Touareg Phaeton Heated Seat Control Module Unit 7L0959772D
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9306220
Telematics Module BMW F10 F20 F30 F31 Bluetooth Teleservices GPS 9306220
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 3428557
BMW Z4 E86 Alarm System Ultrasonic Roof Control Module 3428557
Promo price
€75.95
€64.56
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 5N0971349AT
Volkswagen Tiguan 5N Alternator Generator Wiring Harness Cable 5N0971349AT
€28.95
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 8X0907159B
Audi A1 8X Fuel Pump Module Control Unit ECU 8X0907159B
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 406349
Mini Cooper One R50 R52 R53 iPod Interface Control Unit Module 0406349
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 8X0035225J
Audi A1 8X Antenna Booster Amplifier Upper Rear Right O/S 8X0035225J
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9213374
Mini R55 R56 R57 Cover Power Distribution Fuse Box 9213374
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 4L2910401B-1
Audi Q7 4L 3.0 TDI CRCA Quattro Engine ECU Kit Lock + Ignition + Key 4L2910401B
Promo price
€854.95
€512.97
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A0025426918
Mercedes W211 W220 Crash Sensor Left Right N/O/S A0025426918
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6864204
ICM Module BMW F20 F21 F30 F31 Control Unit 6864204
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A1698208026
Mercedes W169 Door Control Module Right Front O/S A1698208026
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 5Q0915181C
Audi A3 8V Negative Battery Cable Terminal Clamp Wire 5Q0915181C
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A1646803535
Mercedes-Benz M-Class ML W164 B-Pillar Trim Cover Bottom Left N/S A1646801935
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 8792148
Navigation Headunit BMW F20 F22 F30 Mini F55 F56 Head Unit Basic Media
Promo price
€137.95
€82.77
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9337807
Door Speaker BMW F15 F16 Front Rear Loudspeaker HiFi Audio Speaker 9337807
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. AT1T-15T850-AA
Ford Transit Connect PDC Parking Aid Warning Control Module Unit AT1T-15T850-AA
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 9314229
BMW F20 Front Electronic Module Body Control Unit FEM ECU 9314229
€284.95
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 9266384
BMW 5 Series F10 F11 LCI Boardmonitor Central Information Display 7" 9266384
Promo price
€56.95
€34.17
Free delivery - Thu, Nov 06
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 - Thu, Nov 06
If paid before 14:00

-40%
Part no. A2535403718
Mercedes X253 Rear Bumper Electrical Wiring Harness A2535403718
Promo price
€66.95
€40.17
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 8572129
BMW 2 3 Series F22 F30 Diesel N47N Wiring Loom Harness Engine Module 8507896
Promo price
€42.95
€36.51
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A1765450000
Mercedes-Benz A-Class W176 Bluetooth Unit Module Bracket Holder A1765450000
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9122100
BMW 1 Series E88 Mini Cooper R57 R59 Sat Nav GPS Antenna Amplifier 9122100
Promo price
€37.95
€32.26
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 6868194
BMW 3 Series E90 E91 LCI Mini R55 R56 Tyre Pressure RDC Control Unit Module
Promo price
€66.95
€40.17
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6974373-1
BMW E81 E84 E87 E88 E90 Ultra Sonic Module Alarm System 9149671
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A2055403103
Alternator Starter Wiring Harness Mercedes W205 GLC C253 OM651 A2055403103
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9188377
BMW F01 KaFAS Camera Front Windscreen Lane Departure Camera Module 9188377
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A2059007521
Module Mercedes W205 Air Conditioning A/C System Control Module A2059007521
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9261110
BMW F20 F21 F30 F31 Fuse Box Power Distribution Control Unit Box Rear 9261110
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 9237968
BMW F07 GT Central Gateway Module ECU Control Unit Lear ZGW-01 High 9237968
Promo price
€66.95
€40.17
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9304007
BMW G30 Seat Occupancy Sensor Mat Passenger Side Control Unit Module 9304007
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9285505
Distribution Junction BMW X5 X6 F15 F16 Power Battery Control Unit 9285505
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 8649179
BMW X5 F15 Positive Wiring Harness Cable Battery 8649179
Promo price
€89.95
€76.46
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. FV6T-14324-BBB
Ford Transit Connect Mk2 Starter Earth Ground Wire Cable FV6T14324BBB
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 6923954
BMW E39 E46 X5 E53 X3 E83 Z4 E85 E86 Mini R50 R53 Rain Light Sensor 6923954
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 1477831
BMW Mini Cooper One R50 R52 Intake Silencer Air Filter Box 1477831
Promo price
€42.95
€36.51
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9278279
Mini R55 R56 LCI Instrument Cluster Speedo Navigation Display Screen 9278279
Promo price
€104.95
€89.21
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. A1779005409
Door Module Mercedes C118 W177 H243 Front Right O/S Door Control A1779005409
Promo price
€80.95
€48.57
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 7939168
Rain Sensor BMW F20 F21 F30 F31 Windscreen Light Solar Condensation Unit 7939168
Promo price
€61.95
€52.66
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6968649
BMW E93 Convertible Aerial Antenna Amplifier FM/AM Left N/S 6968649
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9156654
BMW 3 Series E93 Rear Antenna Aerial Amplifier AM/FM 9156654
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A2469004313
Gearbox Module Mercedes W176 Automatic Transmission Unit ECU A2469004313
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. CK2T-6M091-AD
Ford Transit Custom 2.2 TDCi Glow Plug Wiring Loom Cable Wire CK2T-6M091-AD
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9232063
BMW F30 Control Module Sensor 9232063
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A2139058001
Mercedes C238 W213 Trunk Lid Handsfree Switch Sensor A2139058001
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A0355400445
Mercedes W204 W212 W221 AMG Fuel Pump Module Control Unit ECU A0355400445
Promo price
€70.95
€60.31
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. A0009009213
Mercedes W447 Fuel Pump Control Module A0009009213
Promo price
€85.95
€51.57
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A1569007702
Signal Actuation Module Mercedes W176 W246 SAM Control Unit ECU A1569007702
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9267085
Antenna Amplifier BMW F01 F10 F13 Aeral Diversity 868 MHZ Control Unit 9267085
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A1779005109
Door Module Mercedes C118 W177 H243 Front Left N/S Door Control A1779005409
Promo price
€123.95
€105.36
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A1648701589
Mercedes ML W164 Aerial Antenna Amplifier Module Unit A1648701589
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9261111
BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear 9261111
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9134280
BMW E81 E82 E87 E90 E91 Air Module Control Unit No Crash Data 9134280
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6957761
BMW 5 6 Series E60 E61 E63 Passenger Door Airbag Control Module 6957761
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6863433
BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6863433
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 9231283-AZB
BMW E70 F10 F11 PDC Parking Sensor Ultrasonic Sensor Azurit Black - S34 9231283
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A2049009410
Mercedes W204 CD Player Radio Stereo Navigation Sat Nav Head Unit A2049009410
Promo price
€61.95
€52.66
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9118611
BMW Z4 E86 Hifi Audio Sound AMP Amplifier Module 9118611
Promo price
€574.95
€488.71
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6910542
BMW 3 X3 Series E46 E83 Battery Cable Plus Pole Power Positive 6910542
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 6856314
BMW 1 3 Series F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag
Promo price
€37.95
€32.26
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9267200-1
BMW E92 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9267200
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A2035450301
Mercedes-Benz C CLK Class W203 W209 Battery Terminal Fuse Box A2035450301
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
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 - Thu, Nov 06
If paid before 14:00

-5%
Part no. A2124407038
Negative Cable Mercedes W212 Battery Earth Wiring Loom A2124407038
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 8T8035225C
Audi A5 8T Audio Radio Aerial Amplifier Control Unit 8T8035225C
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. A0009001810
Windshield Camera Mercedes W166 R172 Driver Assist Front Camera A0009001810
Promo price
€56.95
€34.17
Free delivery - Thu, Nov 06
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 - Thu, Nov 06
If paid before 14:00

-5%
Part no. 4B0959643E
Audi A3 8P Crash Impact Airbag Sensor Unit Module Air Bag 4B0959643E
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
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 .