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. 8510221-8
BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8510221 CAS3 + Key
Promo price
£94.95
£56.97
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 5Q0907376B
Seat Leon Cupra 5F Suspension Control Unit Module ECU 5Q0907376B
Promo price
£28.95
£17.37
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 9131850
CD Changer BMW E60 E61 E63 6-DISC Compact without Magazine 9131850
Promo price
£37.95
£22.77
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 6994548
BMW G30 G31 Body Control Comfort Module Unit FEM BDC ECU V04 6994548
Promo price
£237.95
£202.26
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 8J0907115AJ-1
Audi TT Mk2 8J 2.0 TFSI CESA 211HP Engine Control Unit ECU 8J0907115AJ Manual
Promo price
£379.95
£322.96
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 9298939
Radio Player BMW F10 F11 F20 F21 F25 F30 F31 Alpine CD Champ 2 Head Unit 9298939
Promo price
£189.95
£161.46
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. A3-8P-ANDROID
Audi A3 8P A4 B7 Head Unit 7" Navigation Sat Nav Radio Audio Android DAB+ 2-DIN
£237.95
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. 4F0971845A-1
Audi A6 S6 C6 Body Comfort Module Convenience Control Unit 4F0907289J
£23.95
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. 5F0035877A
Seat Leon FR 5F MMI Navigation Sat Nav MMI Head Unit 5F0035877A
£203.95
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. A2165406507
Mercedes CL C216 Door Electrical Wiring Harness Left Right N/O/S A2165406507
£56.95
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. rhd-A2044402613
Battery Cable Mercedes W204 Positive Alternator Wiring A2044402613
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. EK2T-14B428-RA
Ford Transit Custom Bluetooth Control Module Unit ECU EK2T-14B428-RA
£13.95
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2215402350
Fuse Box Mercedes W221 W216 Junction Control Unit Relay Module A2215402350
Promo price
£23.95
£14.37
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 9483099
Mini Cooper One F55 F56 F57 Parking Assistant Control Unit Module 9483099
Promo price
£51.95
£31.17
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 1T0919475C
PLA Module VW Tiguan 5N Parking Assist Control Unit Module 1T0919475C
Promo price
£66.95
£40.17
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 4F0907801A
Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801A
Promo price
£28.95
£24.61
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 4F1971035N
Audi A6 C6 Front Driver Side Door Wiring Right O/S Harness Loom Cable 4F1971035L
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2218705687
Mercedes W221 Linguatronic Control Module Unit ECU English Version A2218705687
Promo price
£70.95
£42.57
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8588946-2
BMW X3 F25 20dX 190HP B47 Engine Control Unit ECU Kit DDE 8588946 Key CAS4
Promo price
£284.95
£170.97
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 9232896-1
Dashboard Monitor BMW X5 X6 E70 E71 Onboard Display Screen 8,8" 9232896
Promo price
£94.95
£56.97
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. rhd-A6111500433
Mercedes W203 OM611 Diesel Engine Wiring Cable Loom Harness A6111500433
Promo price
£70.95
£42.57
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A9075402605
Mercedes W907 Fuse Box Control Unit Module Q2 A9075402605
Promo price
£51.95
£31.17
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 8T0907468AB
Audi A4 B8 2.0 TDI CAGA Gateway Interface Control Module Unit ECU 8T0907468H
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A6519007401-6
Mercedes SLK R172 250CDI 651.980 204HP Engine ECU Kit Ignition + Key A6519007401
Promo price
£151.95
£91.17
Free delivery - Fri, Nov 14
If paid before 14:00
-40%
Part no. 9182293
BMW F01 F02 F04 Rear View Camera Cable Set 9182293
Promo price
£89.95
£53.97
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 3Q0907338E
Audi S3 8V Front Headlight Lamp Range Control Module ECU 3Q0907338E
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 8S0907468A
Audi TT FV Gateway Control Module Unit ECU 8S0907468A
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2098200385
Voice Module Mercedes W164 W203 W209 W211 Control Unit Input System A2098200385
Promo price
£161.95
£97.17
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. A0015424723-1
Mercedes W204 W207 W221 Parking Sensor Display Control PDC A0015424723
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. 9321002
Battery Cable BMW X3 F25 X4 F26 Underfloor Positive Plus Lead Harness 9321002
£66.95
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 6842267
Mini F55 F56 Navigation DAB+ Head Unit High Control Unit Module 6842267
Promo price
£284.95
£242.21
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A6519009702-6
Mercedes W176 W246 A200d OM651.930 136HP Engine Unit ECU A6519009702 Manual
Promo price
£75.95
£45.57
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. 6962296
BMW E81 E87 E88 E89 E90 E91 E92 E93 Radio Business CD 6962296
£42.95
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. A2124402707
Mercedes W212 Parktronic Parking Sensor Interior Protection Wiring A2124402707
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 6799083
Control Unit BMW F10 F11 X3 F25 Parking Brake Handbrake Module EMF 6799083
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A2239053605
Mercedes W206 W223 NFC Module Near Field Communication Control Unit A2239053605
Promo price
£28.95
£24.61
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. D1BT14D212RB
Front Transit Connect Mk2 Bluetooth Interface Control Module ECU D1BT14D212RB
Promo price
£23.95
£14.37
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8589145-9
BMW F20 F21 F30 LCI 118d 318d B47 150HP DDE Engine ECU Kit 8589145 Key FEM Lock
Promo price
£284.95
£170.97
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 6R0971349AM
Volkswagen Polo Mk5 V 6R Battery Cable Alternator Starter 6R0971349AM
Promo price
£23.95
£20.36
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 9343687
BMW F01 LCI F07 F10 F11 F25 Safety Control Unit Air Module Bag ECU 9343687
Promo price
£37.95
£32.26
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. 3AF035552
VW Volkswagen Passat B7 Radio Aerial Antenna Amplifier Left N/S 3AF035552
£13.95
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 8804457
BMW F20 F21 F22 F30 F31 LCI Head Unit Media DAB Navigation Professional 8804457
Promo price
£303.95
£258.36
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A2055405203
Mercedes W205 Negative Cable Battery Lead Minus Pole Wiring A2055405203
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 5293147
Relay Glow Littlefuse Mega Fuse 250 Amp 5293147
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8511385-2
BMW F10 F11 525d N57 204HP Control Unit ECU Kit DDE 8511385 CAS4 Key Automatic
Promo price
£237.95
£142.77
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A2128270228-ING
Mercedes W212 Estate Roof Antenna Cover Shark Indium Grey Metallic A2128270228
Promo price
£22.95
£19.51
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 9261580
BMW F20 F21 F30 F31 PDC Parking Sensor Ultrasonic Glacier Silver A83
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 4E0907279A
Audi Q7 4L Body Control Comfort Unit Module BCM Convenience Unit ECU 4E0907279A
Promo price
£23.95
£20.36
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. A2113231226
Mercedes-Benz E Class W211 Front Right Anti Roll Bar Clamp Bracket A2113231226
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 6943285
BMW E65 Xenon Headlight Control Module LM E6X LWR 6943285
Promo price
£47.95
£28.77
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8792148
Navigation Headunit BMW F20 F22 F30 Mini F55 F56 Head Unit Basic Media
Promo price
£113.95
£68.37
Free delivery - Fri, Nov 14
If paid before 14:00
Part no. 7592511
BMW E88 E90 E91 E92 LCI F20 F21 F30 Ignition Wiring N55 Engine Harness 7592511
£28.95
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 6958447
BMW 7 Series E65 Control Unit Door Rear Passenger Side Hinten Low BFT 6958447
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 6953424-3
BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8200793109
Renault Laguna 3 III K9K 780 1.5 DCI Engine Control Unit ECU 8200793109 Manual
Promo price
£56.95
£34.17
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 7545142
BMW Z4 Series E85 N52 Roadster Cable Alternator Starter Base B+ 7545142
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 5A3BC21
BMW F98 X4M G30 G31 LCI Multimedia MMI Head Unit 2448971
Promo price
£465.95
£396.06
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. A2079003700
Mercedes C207 Door Module Rear Left N/S Control Unit ECU A2079003700
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2043271240
Mercedes W204 C207 Headlight Headlamp Range Sensor Front Right O/S A2043271240
Promo price
£37.95
£22.77
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 6887755
BMW F20 F21 LCI F30 F31 F32 Air Module ECU Control Unit 6887755
Promo price
£251.95
£214.16
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 5A70A69
BMW F40 Parking Module Comfort Control Unit ECU 5A70A69
Promo price
£118.95
£71.37
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2229002921
Mercedes W205 W213 Head Unit Navigation Radio DAB High Control Unit A2229002921
Promo price
£332.95
£199.77
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 81A035035G
Audi Q2 GA Sat Nav Multimedia Control Unit Module SD SIM MIB2 HIGH 81A035035G
Promo price
£664.95
£398.97
Free delivery - Fri, Nov 14
If paid before 14:00
-40%
Part no. 8506434
BMW E87 E90 LCI N47 118d 318d Diesel Engine Control Unit ECU DDE Manual Gearbox
Promo price
£23.95
£14.37
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 9872066
BMW X2 F39 F40 F44 F45 F46 F52 Air Quality AUC Sensor 9872066
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 9162959
Seat Control Unit BMW X5 E70 E87 E90 E91 E92 Module Memory ECU 9162959
Promo price
£37.95
£22.77
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 6797090
BMW F01 F02 F07 Air Suspension Control Unit Module 6797090
Promo price
£51.95
£44.16
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8517874-2
BMW 1 Series F20 F21 116d N47N 116HP ECU Kit DDE 8517874 + Key + FEM Automatic
Promo price
£189.95
£113.97
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8518802
BMW F30 F31 330dX N57N Engine Gearbox Module Wiring Cable Loom Harness 8518802
Promo price
£56.95
£34.17
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 6911038
BMW 3 X5 Series E46 E53 Airbag Side Impact Crash Sensor Bosch 6911038
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 6950525
BMW 3 6 Series E63 E64 E93 DWA Alarm System Module Unit 65756950525 6950525
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A1179001801
Mercedes W176 Air Module System Control Unit Module ECU A1179001801
Promo price
£66.95
£56.91
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 5A94F67
BMW F40 Heater Air Conditioning System Control Unit Module ECU 5A94F67
Promo price
£47.95
£40.76
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8691831-1
Mini Cooper S F55 F56 B48 192HP Petrol Engine ECU Kit DME 8691831 + BDC + Key
Promo price
£569.95
£341.97
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. A2661539679-1
Mercedes W169 W245 B170 M266.940 116HP Engine Control Unit Set A2661539679
£237.95
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A9064460442
Mercedes W639 Air Module System Control Unit ECU A9064460442
Promo price
£61.95
£52.66
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 6850846
BMW F10 F11 F12 Parking Brake Unit Electric Control Module EMF 6850846
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 6825519
BMW X2 F39 F45 X1 F48 High Voltage Cable Cover Duct Bracket Channel 6825519
Promo price
£23.95
£14.37
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 9133083-1
BMW E81 E87 E90 E91 E92 6-disc CD Changer 9133083
Promo price
£32.95
£19.77
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 130002618
BMW X3 X5 E53 E83 Front Seat Adjustment Actuator Drive CRH 1-1968-01
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 575035736A
Seat Ibiza FR Double USB C Charging Port Socket Connection 575035736A
Promo price
£28.95
£24.61
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 9266407
BMW F01 Central Gateway Module ECU Control Unit Lear ZGW-02 High 9266407
Promo price
£28.95
£17.37
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 6906347-1
BMW X5 E53 Rear Bumper PDC Plug Socket Loom Cable 6906347
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 8517727-6
Mini Cooper SD ALL4 R56 LCI R60 143HP N47N Engine ECU Kit DDE 8517727 Manual
Promo price
£170.95
£145.31
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 6G9T-14B192-EA-1
Ford Fiesta Transit Relay 4-Pin Grey FoMoCo Unit 6G9T-14B192-EA SET X2
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 9268336
BMW MINI Clubman R55 R55N LCI Cable Adapter Lead Sensor Side Airbag 9207117
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. 02T911024K
Seat Ibiza 6J VW Volkswagen Polo 6R Skoda Fabia II Starter Motor 02T911024K
£18.95
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A4478200087
Mercedes Sprinter W906 Connector AUX USB Adapter Port Socket A4478200087
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. GK2T-18C815-HF
Ford Transit Custom Stereo Radio Media Head Unit CD Player GK2T-18C815-HF
£80.95
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 6866986
BMW F01 F02 LCI F06 F10 F11 F13 ECU ICM Control Unit Module Airbag 6866986
Promo price
£23.95
£20.36
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8509036-3
BMW X5 E70 30sd M57N2 286HP Engine ECU Unit DDE 8509036 Automatic
Promo price
£474.95
£284.97
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 41221184
Iveco Eurocargo 75E15 Immobilizer Control Module Unit ECU 41221184
Promo price
£28.95
£24.61
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 8P0959655J
Audi A3 E 104 T Air Module ECU Sensor Control Unit 8P0959655J
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 1K0959433BT
VW Golf 5 Body Control Comfort Unit Module BCM Convenience Unit ECU 1K0959433BT
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 8X0035225J
Audi A1 8X Antenna Booster Amplifier Upper Rear Right O/S 8X0035225J
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A2049009907-1
Mercedes W204 Navigation Radio Player Head Unit Computer A2049009907
Promo price
£237.95
£202.26
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 8K0959792D
AUDI S5 8T Door Control Module ECU Front Left N/S 8K0959792D
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2045458401
Mercedes W204 Fuse Box Terminal Connection Unit A2115452301
Promo price
£184.95
£110.97
Free delivery - Fri, Nov 14
If paid before 14:00
-40%
Part no. 9148267
BMW 3 Series E93 Seat Control Unit Module FSV 7.11.0 9148267
Promo price
£47.95
£28.77
Free delivery - Thu, Nov 13
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 .