Automotive electrical systems
More informationAt Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.
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In Stock
Price
Part no. 8S61-18C815-AA
Ford Transit Connect Radio Head Unit 6000 CD Media Player Unit 8S61-18C815-AA
£47.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2135406503
Mercedes W213 Rear Bumper PDC Assist Wiring Harness Loom Cable A2135406503
£61.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 5A23E01
BMW F44 B38C 218i Petrol Engine Control Unit ECU DME 5A23E01 Manual
£180.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2059052110
Mercedes W205 W213 Rear PDC Parking Assist Module Control Unit A2059052110
£23.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2139003110
Mercedes W213 COMAND Head Unit Radio Navi Player Control Unit A2139003110
£522.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. RHD-A2135402840
Mercedes W213 Full Display Widescreen Glass LCD Instrument Cluster A2135402840
£237.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. QLM2245
Mercedes C117 W176 Xtrons Multimedia Player Radio Head Unit Android QLM2245
£284.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. GU5T-14B192-GA-1
Ford Transit Mk8 Relay High Power 4-Pin FoMoCo Set X4 GU5T-14B192-GA 4RA933714
£18.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 03G906018AQ
Audi A4 B7 2.0 TDI 170HP BRD Engine Control Module Unit ECU 03G906018AQ Manual
£51.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 5M5T-14B192-EA-1
Ford Transit Custom Relay 4-Pin Black 12V 40A FOMOCO Set X2 5M5T-14B192-EA-1
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 3C0907376A
Volkswagen VW Golf Mk Scirocco Mk3 Electric Damping Control Module 3C0907376A
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 06K907425B-12
Seat Leon 5F FR 1.8 TFSI CJSA 231HP Quattro Engine ECU 06K907425B Automatic
£237.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 6853417
BMW F01 F10 F20 F30 Tow Bar Trailer Towing Control Module Unit AHM 4 6853417
£28.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. RHD-8X2035711B
Audi A3 8V Q3 8U Microphone Cable Wiring Loom Cable Harness 8X2035711B
£32.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8X0919884H
Audi A1 8X A6 A7 C7 Card Map Pilot Navigation Europe 2015 8X0919884H
£28.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A1779009902-1
Mercedes W177 Front Windscreen Windshield Camera Multi Purpose Unit A1779009902
£32.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. SE-A180
Mercedes W176 A246 C117 X156 Multimedia Screen 8" Head Unit Display HD SE-A180
£142.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 5Q0907530T
VW Volkswagen Golf SV Mk7 Audi A3 8V Gateway Control Module Unit ECU 5Q0907530T
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 5Q4959593C
Seat Leon Mk3 Front Door Module Control Unit Driver's Side 5Q4959593C
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2711504279-3
Mercedes W204 C180 156HP Kompressor M271.910 Engine ECU Kit A2711504279 Manual
£379.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8K2907115L-1
Audi A4 B8 A5 8T 8K 2.0 TFSI CDNC 211HP Engine Control ECU Kit 8K2907115L Manual
£151.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 7T11-12A650-DF
Ford Transit Connect Mk1 1.8 TDCI 90HP Engine Control ECU 7T11-12A650-DF Manual
£85.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8511385-5
BMW F10 F11 525d N57 245HP Engine Control ECU Module DDE Kit 8511385 Automatic
£165.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8474730-4
BMW F20 F21 F30 F31 LCI 120d 320d B47 190HP Engine ECU Kit DDE 8474730 Automatic
£189.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8596362-7
BMW F20 F30 LCI 120dX 320dX B47 190HP Engine Control ECU Kit DDE 8596362 Manual
£151.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 04L907309A-3
Seat Leon 5F FR 2.0 TDI CUNA 150HP Engine Control ECU Kit 04L907309A Automatic
£142.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2709002100-17
Mercedes C117 W176 W246 A200 BE M270 156HP Engine ECU Kit A2709002100 Automatic
£189.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8E5945094A-1
Audi A4 B7 Tail Light Side Panel Lamp Cable Wiring Rear Right O/S 8E5945094A
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A0009062103
Mercedes W205 Alternator Generator Petrol Engine Valeo 150A 14V A0009062103
£94.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 04L907309K
Audi Q3 8U 2.0 TDI CUVC 150HP Quattro Engine Control ECU 04L907309K Automatic
£47.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A1698203575
Mercedes W169 W245 Aerial Roof Antenna Radio Control Unit Module A1698203575
£75.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A1698705494
Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698705494
£32.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. B67824529-1
Mercedes W203 CL203 iPod Interface Module Control Unit ECU Wiring B67824529
£47.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8582279-10
BMW F20 F30 F32 120dX 320dX 420dX N47N 184HP Engine ECU Kit DDE 8582279 Manual
£56.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2129001806
Mercedes A207 C207 SAM Control Unit Module Fuse Box Rear A2129001806
£56.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 03C906027AT
Volkswagen Scirocco Mk3 1.4 TSI CAVD Engine Control ECU Kit 03C906027AT Manual
£189.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 4L0698007C-1
Audi Q7 4L Air Suspension Level Height Adjustment Compressor Pump 4L0698007C
£227.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 03P906021AB-1
Seat Ibiza 6J 1.2 TDI CFWA Engine Unit Module ECU Kit 03P906021AB Manual
£142.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8519668-3
BMW E90 E91 LCI 320d N47N 184HP Engine Control ECU DDE Kit 8519668 Manual
£170.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 6C11-12A650-AN-1
Ford Transit MK7 2.2 TDCI 85HP Diesel Engine Control ECU 6C1112A650AN Manual
£70.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 05E907309-2
Volkswagen Golf Sportsvan 1.5 TSI DADA 150HP Engine ECU 05E907309 Automatic
£28.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 4F0907279C
Audi Q7 4L Onboard Supply Body Control Comfort BCM Unit Module 4F0907279C
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8K0907064FE
Audi A4 B8 BCM2 Body Comfort Module Control Unit Board Power Supply 8K0907064FE
£28.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 4G0035061D
Audi A4 B8 A5 8T MMI Multimedia Navigation Radio Control Head Unit 4G0035061D
£170.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 9126791
BMW E87 E90 E91 E63 Amplifier Top Hifi Logic7 Audio Harman Becker Unit 9126791
£379.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 9157157
BMW E60 E61 E63 E64 Gateway Module Control Unit ECU 9157157
£32.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 9145402
BMW E64 Air Module ECU Control Unit Centre Vehicle Sensor Controller 9145402
£75.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 6G9T-14B192-DA-1
Ford Galaxy Mondeo Transit Relay 4-Pin Black FoMoCo Unit Set Kit 6G9T14B192DA
£18.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2038703294
Mercedes C203 Radio Head Unit CD Player Control Panel Switch A2038703294
£80.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 7N0907530BA
Skoda Yeti 5L Gateway Control Module Unit ECU 7N0907530BA
£23.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 3Q0959651A
Seat Leon Mk3 5F Deployment Crash Impact Sensor Front Centre 3Q0959651A
£23.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2218206397-1
Mercedes W221 Rear View Reversing Camera Video Unit Park A2218206397
£123.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 4H0951253-1
Audi A3 8P Multi Use Control Module Relay 4 Pin Light Green Unit Set 4H0951253
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2049009214
Mercedes W204 CD Player Radio Stereo Navigation Sat Nav Head Unit A2049009214
£66.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 3Q0959655CM
Seat Ateca Air Module Control Unit ECU Module Sensor 3Q0959655CM
£37.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A9065410040
Mercedes Sprinter W906 Battery Bracket Mount Carrier Support A9065410040
£18.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8598759-7
BMW F20 F30 F32 LCI 118d 318d B47 Engine Control ECU DDE Kit 8598759 Automatic
£189.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 7N0843637B
Volkswagen Sharan 7N Sliding Door Catch Upper Locking Plate Left N/S 7N0843637B
£28.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 3Q0959655BH
Seat Leon 5F Mk3 Air Module Control Unit ECU Module Sensor 3Q0959655BH
£28.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A9079002304
Mercedes Sprinter W907 W910 BCM Body Control Module Unit ECU A9079002304
£42.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 5QA919283D
Seat Leon 5F Mk3 Park Parking Assist PDC Distance Control Unit Module 5QA919283D
£18.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8T0862335D
Audi A4 B8 Bluetooth Multimedia Interface Control Module Unit ECU 8T0862335D
£23.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A9069005203
Mercedes Sprinter W906 Radio CD Player Audio Multimedia Head Unit A9069005203
£189.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 9257015
BMW F07 F25 CIC Sat Nav Professional Infotainment Radio Player Head Unit 9257015
£189.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 6942692-1
BMW X5 E53 Light Check Module Control Unit ECU Lear Xenon LCM IV 6942692
£47.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2198200511-1
Mercedes CL C216 Bluetec Contact Plate Adapter Phone Recording A2198200511
£37.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. W221-JOYEAUTO-1
Mercedes W221 Retrofit Joyeauto CarPlay Multimedia Interface Control Unit Module
£170.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2049060902-1
Mercedes W204 COMAND Head Unit Navigation CD Player Radio Unit A2049060902
£332.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A4475401011
Mercedes W447 Horn Signal Wiring Connector Electrical Cable A4475401011
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 03L906018CM-1
Audi Q3 8U 2.0 TDI CFFB 140HP Quattro Engine Control Unit ECU 03L906018CM Manual
£142.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A4479006000
Mercedes W447 Front Door Module Control Unit ECU Front Left N/S A1669013901
£75.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8792247
BMW F20 F30 F32 Navigation Head Unit Harman Sat Nav Unit 8792247
£265.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8X0907357B
Audi A1 8X Q3 8U Headlight Head Lamp Range Control Unit Module ECU 8X0907357B
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8639582-3
BMW F30 335i F32 F33 435i N55 306HP Engine Control ECU Kit 8639582 Automatic
£379.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A4479000707
Mercedes Vito W447 Fuse Box Relay Control Unit Module A4479000707
£66.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A4479006100
Mercedes W447 W448 Front Door Module Control Unit ECU Right O/S A1669013901
£18.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A4479004105
Mercedes W447 Tow Bar Towing Control Module Unit ECU A4479004105
£189.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 4G0035056E
Audi A5 8F A6 4G Sat Nav Multimedia DAB Radio Control Head Unit 4G0035056E
£189.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2185402605
Mercedes CLS C218 Front Door Wiring Harness Loom Driver Side A2185402605
£18.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2185403005
Mercedes CLS C218 Front Door Wiring Harness Loom Passenger Side A2185403005
£18.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2185403405
Mercedes CLS C218 Rear Door Wiring Harness Loom Left Right O/S A2185403405
£18.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. GK2T-14301-AB
Ford Transit Custom Negative Battery Lead Cable Harness Wirng Loom GK2T-14301-AB
£37.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2189009003
Mercedes CLS C218 Front Headlight Xenon Ballast Control Module Unit A2189009003
£56.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2185408907
Mercedes CLS C218 Front Dashboard Console Wiring Loom Harness A2185408907
£18.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A2129002213
Mercedes W212 C218 Dashboard Dash Navigation Central Display Screen Monitor
£94.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. RHD-A1185408813
Mercedes C118 Door Electrical Wiring Harness Front Left Right N/O/S A1185408813
£18.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A1185404715
Mercedes C118 X188 Front Door Wiring Harness Cable Driver Side A1185404715
£47.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. RHD-A2215400436
Mercedes C216 W221 Alternator Wiring Front Loom Harness Cable A2215400436
£23.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A1679000111-1
Mercedes W167 W177 Radio Stereo Player Sat Nav Head Unit ECE A1679000111
£237.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 6C0951171-1
Volkswagen Polo 6R Mk5 Roof Alarm Monitor Module Sensor Unit 6C0951171
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 5G0035222C
Seat Leon Mk3 5F Media In Port Socket Connection Adapter 5G0035222C
£23.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. ICE-VDO-CR133HDVSGREY
Xtrons CR133HDVS 11.6" Full HD Roof Mounted Multimedia Player HDMI/USB/SD
£142.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 8S0907159E
Audi TT FV Impact Body Sound Accoustic Control Unit Module ECU 8S0907159E
£18.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 4F1941824
Audi Q7 4L Fuse Box Control Module Connector Plug Socket Wiring Loom 4F1941824
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 4F1941824B
Audi Q7 4L Fuse Box Control Module Connector Plug 4F1941824B
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 5Q0907530AL
Audi A3 8V VW Golf 5G Central Gateway Control Unit Module Relay ECU 5Q0907530AL
£13.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. 4F0959760D
Audi Q7 4L Front Seat Memory Control Module Unit ECU Left Right N/O/S 4F0959760D
£99.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. A6549009600-4
Mercedes X118 W177 W247 CLA 220 654.920 190HP Engine ECU A6549009600 Automatic
£123.95
Free delivery - Mon, Nov 03
If paid before 14:00
Part no. BK2T-18D815-GF
Ford Transit Custom Radio Stereo Audio USB Head Unit Panel BK2T-18D815-GF
£32.95
Free delivery - Mon, Nov 03
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 .