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

-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 - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2055457200
Mercedes W205 Radio Stereo Head Unit Mount Bracket Holder Support A2055457200
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A9065454701
Mercedes W906 Fuse Box Relay Control Unit Electric Module A9065454701
Promo price
€37.95
€32.26
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A6291501779
ECU Mercedes X164 Diesel OM629.912 Engine Control Module 306 HP Automatic
Promo price
€104.95
€62.97
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A9075402605
Mercedes W907 Fuse Box Control Unit Module Q2 A9075402605
Promo price
€61.95
€37.17
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2123300135
Mercedes W212 Front Axle Suspension Wishbone Ball Joint Mount A2123300135
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0048201910
Mercedes W124 E280 Acceleration Sensor For Belt Locking Retractor A0048201910
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A4479063000
Mercedes Vito W447 Heater Blower Motor Fan Resistor A4479063000
Promo price
€51.95
€44.16
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A1699000700
Mercedes A B Class W169 W245 Door Control Module Front Right O/S A1699000700
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A2059067200-1
Mercedes W205 S205 W213 Fuse Box Front Relay Control Unit Module A2059067200
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A2749003900
Mercedes Vito W447 Electronic Control Unit Module ECU A2749003900
Promo price
€137.95
€82.77
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. N000000004325-1
Mercedes W169 W204 W211 C219 Replacement Fuse Kit Set N000000004325
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A9067601204
Mercedes Sprinter W906 Front Left Door N/S Handle Bowden Pull Cable A9067601204
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A1775405520
Mercedes W177 Front Door Harness Loom Cable Wiring Left Right N/O/S A1775405520
Promo price
€56.95
€34.17
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0025407097-1
Mercedes W221 Air Pump Valve Pressure Electric Change Over Sensor A0025407097
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2219007701
Mercedes W221 Door Module Rear Right Left N/O/S Control Unit A2219007701
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2129009505
Mercedes W212 PDC Parking Distance Control Unit Module Sensor A2129009505
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A1715409245
Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715409245
Promo price
€37.95
€32.26
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A2139009406
Mercedes W213 Display Screen Information Navigation Dashboard A2139009406
Promo price
€66.95
€40.17
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A0009009639
Mercedes EQA350 H243 4matic DC Current Charge Connection Module OBL + BR293
Promo price
€1,044.95
€626.97
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0055422618
Rate Sensor Mercedes W212 ESP Yaw Rotation Control Unit Module A0055422618
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A6549009600-3
Mercedes GLC 220d X253 654.920 194HP 4Matic Engine Control Unit A6549009600
Promo price
€189.95
€113.97
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0009004802
Air Module Mercedes W639 W906 ECU Control Unit Crash Impact A0009004802
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A0009821212
Energy Distributor Mercedes W205 W212 W213 W906 Control Unit Module A0009821212
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
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 - Wed, Nov 05
If paid before 14:00

-15%
Part no. A2711535391-2
Mercedes R171 SLK 200K 184HP M271.944 Engine ECU Kit A2711535391 Key Lock
Promo price
€275.95
€234.56
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A1668200689
Antenna Amplifier Mercedes W176 Aerial Module Unit Rear A1668200689
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2048205497
Mercedes W204 Display Screen Radio Multimedia Navigation Sat Unit A2048205497
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A2469052602
Dashboard Panel Mercedes W176 W246 Switch Dynamic Select Start/Stop A2469057902
Promo price
€32.95
€28.01
Free delivery - Wed, Nov 05
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 - Wed, Nov 05
If paid before 14:00

-5%
Part no. A9066800214
Mercedes Sprinter W906 Radio Fan Adapter Cooling Control Unit Module A9066800214
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0009828023
Fuse Relay Mercedes C117 W166 W176 W205 X253 Black 4 Pin 12V A0009828023
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. A1769009203
Mercedes R172 R231 Headlight LED Ballast Control Unit Module A1769009203
€85.95
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2135406100
Fuse Box Mercedes W205 Interior Equipment Fuse Box Control Module A2135406100
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0005456916
Mercedes W212 CDI Automatic Gearbox Control Module Unit ECU A0005456916
Promo price
€27.95
€26.55
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. A2514401909
Mercedes W164 W251 Wiring Loom Cable Harness Door Front Left Right A2514401909
€23.95
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A4475400053
Mercedes Vito W447 Negative Battery Cable A4475400053
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A1728202100
Mercedes W176 W207 W246 USB Interface Multimedia Adapter Connector A1728202100
Promo price
€56.95
€48.41
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A0009002308
Mercedes W447 W906 Adblue Module Exhaust Gas Control Unit ECU A0009002308
Promo price
€89.95
€53.97
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2128201689
Mercedes W212 Antenna Amplifier Aerial Module Unit A2128201689
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2055400555
Mercedes W205 Door Electrical Wiring Harness Front Left N/S A2055400555
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2048210851
Mercedes W212 Windscreen Rain Sensor Temperature Humidity Unit A2048210851
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. A2059000441
Mercedes W205 Display Screen Multimedia Navigation Sat Head Unit A2059000441
Product currently unavailable

-5%
Part no. A1644407110
Mercedes W164 Wiring Loom Cable Harness Door Rear Left Right A1644407110
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. A2535402605
Mercedes GLC X253 Rear Bumper Wiring Loom PDC Harness Parking Sensor A2535402605
€66.95
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2469004512
Mercedes-Benz A M Class W166 W176 Parking Brake Control Unit Module ECU
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. A2135452040
Mercedes W213 Head Unit Bracket Control Unit Module Holder Mount A2135452040
€23.95
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A6081550035
Mercedes W177 Alternator Mounting Bracket Carrier A6081550035
Promo price
€66.95
€56.91
Free delivery - Wed, Nov 05
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 - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0005459712
Mercedes W447 OM654 Power Distributor Box Conectors Socket A0005459712
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A1698202675
Mercedes W169 W245 Aerial Roof Antenna Radio Rod A1698202675
Promo price
€61.95
€52.66
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A2139008730
Mercedes C253 W177 W205 W247 Gearbox Module Control ECU Automatic A2139008730
Promo price
€37.95
€32.26
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A2218707385
Mercedes W221 Rear DVD Entertainment System Video Player Unit A2218707385
Promo price
€370.95
€222.57
Free delivery - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
If paid before 14:00

Part no. A2059006337
Safety Module Mercedes S205 Airbag Belt Tensioner Control Module SRS A2059006337
Product currently unavailable

-5%
Part no. A2049057501
Mercedes W204 W212 Dashboard Light Sun Solar Sensor Unit A2049057501
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
If paid before 14:00

-40%
Part no. A0009009213
Mercedes W447 Fuel Pump Control Module A0009009213
Promo price
€85.95
€51.57
Free delivery - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
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 - Wed, Nov 05
If paid before 14:00

-15%
Part no. A1779008511
Door Module Mercedes W177 W247 Rear Left Right N/O/S Control Unit A1779008511
Promo price
€47.95
€40.76
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2215450601
Mercedes W221 Dashboard Fuse Box Front Left N/S Control Module A2215450601
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. A1679008405
Mercedes Sprinter W907 W910 Front Door Module Control Unit Left N/S A1679008405
€132.95
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A9065402727
Mercedes Sprinter W906 OM651 Engine Wiring Harness Cable Loom A9065402727
Promo price
€47.95
€28.77
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A1669051702
Mercedes-Benz A C M W166 W176 W205 Aerial Antenna Amplifier Unit A1669051702
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A1179001802
Mercedes W176 Air Module Belt Locking System Control Unit Module ECU
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A2059004021
Mercedes W205 GLC X253 Door Module Control Unit Front Left N/S A2059004021
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A2215402250
Mercedes W221 SAM Relay Fuse Box Module Control Unit ECU A2215402250
Promo price
€170.95
€145.31
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0025428919
Relay Mercedes W176 W246 5-Pin Yellow Hella 12V A0025428919
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A2139058101
Mercedes C118 C253 Rear Bumper Switch Sensor Module A2139058101
Promo price
€56.95
€34.17
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A6402002770-1
Alternator Belt Tensioner Mercedes W169 W245 OM640 Diesel Holder Mounting Panel
Promo price
€32.95
€28.01
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2218700092
Mercedes W203 W221 Rain Light Sensor Control Module A2218700092
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2118705526
Mercedes W219 Motorola Telephone Control Module DC UHI MOST A2118705526
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A4159007503
Mercedes Citan W415 Body Control Module Unit BCM ECU A4159007503 284B18276R
Promo price
€237.95
€142.77
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A1728200815
Mercedes W204 C207 Centre Console Aux Port Socket Plug Terminal A1728200815
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
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 .