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. 8486997
Mini F55 F56 F57 Integrated Supply Module Electrical Control Unit Module 8486997
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 4L0971846A
Audi Q7 4L Boot Trunk Lid Holder Tailgate Wiring Loom Bracket 4L0971846A
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 9289587
BMW 2 X1 Series F45 F48 Radio Antenna Amplifier Suppression Filter 9289587
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 259903137R
Mercedes Citan W415 Renault Kangoo Parktronic Parking Sensor Module 259903137R
Promo price
£37.95
£22.77
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2205400382
Mercedes CL S Class C215 W220 Fuse Box Unit Front Right O/S Cover A2205400382
Promo price
£23.95
£14.37
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. A6121533279-1
Mercedes-Benz ML W163 270 CDI Engine Control ECU Kit A6121533279 Key Automatic
£189.95
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A2049001202
Mercedes W204 S204 Estate Rear SAM Control Unit Module A2049001202
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 5WA959651A
Audi A3 8Y VW Golf Mk8 Front Air Module Crash Impact Sensor 5WA959651A
Promo price
£28.95
£24.61
Free delivery - Thu, Nov 13
If paid before 14:00
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Part no. 6844138
BMW 1 3 F20 F30 MINI F55 F56 Radio Remote Control Receiver 434 MHZ 6844138
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 5Q0915181C
Audi A3 8V Negative Battery Cable Terminal Clamp Wire 5Q0915181C
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
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Part no. A2219067300
Mercedes-Benz S-Class W221 Fuse Box Control Unit Module SAM A2219067300
Promo price
£284.95
£170.97
Free delivery - Thu, Nov 13
If paid before 14:00
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Part no. 8K0907064KH
Audi Q5 8R BCM Body Control Module Unit ECU 8K0907064KH
Promo price
£151.95
£129.16
Free delivery - Thu, Nov 13
If paid before 14:00
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Part no. 8R0919604A-1
Audi A5 8T Multimedia Radio Sat Nav Screen Display Head Unit 8R0919604A
Promo price
£23.95
£20.36
Free delivery - Thu, Nov 13
If paid before 14:00
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Part no. 9191568
BMW X5 E70 CCC Navigation System CD Player Sat Nav Head Unit 9191568
Promo price
£284.95
£242.21
Free delivery - Fri, Nov 14
If paid before 14:00
-40%
Part no. A2079012700
Mercedes A207 Convertible Roof Reinforcement Roll Bag Airbag Module A2079012700
Promo price
£66.95
£40.17
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A1775404507
Mercedes V177 C118 W247 Fuse Box Relay Control Unit Module A1775404507
Promo price
£32.95
£28.01
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A1775400630
Parking Sensor Wiring Mercedes W177 V177 Rear Bumper PDC Loom Cable A1775400630
Promo price
£75.95
£45.57
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. 5F0941476
Seat Leon Cupra 5F LED Headlight Module Right O/S Side 5F0941476
£28.95
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 4G0907589C-1
Audi A7 4G 3.0 TDI CGQB 313HP Engine Module Unit ECU Kit 4G0907589C Automatic
Promo price
£284.95
£170.97
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8474732-1
BMW F30 F32 F36 335dX 435dX N57Z 313HP Engine ECU Unit Kit DDE 8474732 Key FEM
Promo price
£332.95
£199.77
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 05L907309-2
Audi A4 B9 2.0 TDI DTNA 163HP Engine Control Unit ECU 05L907309 Automatic
Promo price
£56.95
£34.17
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 2757722
Mini Cooper R57 R58 R59 Control Unit Module Bracket Holder PGS 2757722
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. A2709060026
Starter Motor Mercedes W176 W246 Engine Starter Unit 12V Denso A2709060026
£23.95
Free delivery - Thu, Nov 13
If paid before 14:00
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Part no. 8686191
BMW G30 340HP B58 540iX ECU Engine Control Unit Module DME 8686191 Automatic
Promo price
£474.95
£284.97
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. rhd-A2044402334
Door Wiring Mercedes W204 Front Left N/S Loom Cable Wire Harness A2044402334
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. A2469000012-3
Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012
£47.95
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2049008213
Mercedes W204 COMAND Navi CD Player Radio Sat Nav Head Unit A2049008213
Promo price
£218.95
£131.37
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 5B3F572
BMW G26 Head Unit Navigation Audio Player Radio Sat Nav Module 5B3F572
Promo price
£332.95
£199.77
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. BK2T-18812-KA
Ford Transit Custom Roof Antenna Aerial Wiring Harness Loom Cable BK2T-18812-KA
£37.95
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. 4G5971687BQ
Audi A6 C7 4G Rear Door Harness Wiring Loom Cable Left N/S 4G5971687BQ
£23.95
Free delivery - Thu, Nov 13
If paid before 14:00
Part no. 7191718
BMW Z4 Series E89 Roadster Cabrio Horn High Tone 7191718
£23.95
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 8494840
BMW F20 F21 F30 F32 LCI Headlight Ballast Control Unit Module FLE2 LOW 8494840
Promo price
£75.95
£64.56
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2129007519
Mercedes W212 W218 Air Suspension Level Control Unit Module Airmatic A2129007519
Promo price
£56.95
£34.17
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 6G9T-14B192-CA
Ford Fiesta Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-CA
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 9229240
Radio Business BMW E81 E87 E90 LCI CD Player 9229240
Promo price
£37.95
£32.26
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 8379938
BMW 3 Series E46 Ultra Sonic-Module 8379938
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. DATACOMPRO126
DATACOM Switching Pro 126 Programmable Vehicle Power Control System 7+1 Keypad
Promo price
£237.95
£142.77
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8578945-4
BMW F20 F21 F30 116d 316d N47N 116HP ECU Engine Contol Unit DDE 8578945 Manual
Promo price
£56.95
£34.17
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 8V0035736
Audi A3 8V Music Interface Multimedia Connection Module 8V0035736
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 9289581
BMW X5 X6 E70 E71 Dashboard Onboard Monitor Display Screen 6,5" 2284647 9233619
Promo price
£161.95
£97.17
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 7678321
BMW X4 F26 Harness Wiring Cable Loom 7678321 767832-113
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A9079001605
Mercedes W907 Central Gateway Control Unit Module Relay ECU A9079001605
Promo price
£379.95
£227.97
Free delivery - Fri, Nov 14
If paid before 14:00
-5%
Part no. 4E0941817A
Audi RS4 B8 Front Door Wiring Harness Loom Plug Socket 4E0941817A
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 248100293R
Renault Scenic 3 III Control Unit Display Screen Module Console Dash 248100293R
Promo price
£47.95
£40.76
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8586572
Engine Wiring BMW F20 LCI F30 F31 B47 Automatic Gearbox Loom Harness 8586572
Promo price
£37.95
£22.77
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. A2465402605
Mercedes-Benz A B W176 W246 Engine Temperature Sensor Wiring Cable Harness
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 9345373
BMW F10 Footwell Central Lock Gateway Control Module Unit ECU 9345373
Promo price
£132.95
£79.77
Free delivery - Fri, Nov 14
If paid before 14:00
-5%
Part no. 8U0907468BA
Audi Q3 8U Gateway Control Module Unit ECU 8U0907468AQ
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 8615581
BMW 3 F30 LCI 330e B48X Control Unit Bracket Holder Mount 8615581
Promo price
£23.95
£20.36
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2749000800-6
Mercedes W205 C200 274.920 184HP Engine ECU Kit A2749000800 2 Key + Lock Manual
Promo price
£256.95
£154.17
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 8W0959593H
Audi A4 S4 B9 Front Door Control Module Unit Driver's Side 8W0959593H
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A2075401650-1
Mercedes W204 Fuse Prefuse Box Relay Electrical Control Unit A2075401650
Promo price
£47.95
£40.76
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A1729008500-3
Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500
Promo price
£32.95
£19.77
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 7273667
BMW F30 F31 F32 Rear Tailgate Smart Opener Lower Antenna 7273667
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 6800898
Steering Wheel Switch Mini R50 R52 R53 Radio Switch Horn Set 6800903
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 6868252
Air Module BMW F01 F02 F03 F04 F10 F12 ECU ICM Control Unit 6868252
Promo price
£56.95
£34.17
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A0009006906
Mercedes C207 E220CDI BlueTec Adblue Module Control Unit ECU A0009006906
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A4479000101
Door Module Mercedes Vito W447 Rear Right O/S Door Control Unit A4479000101
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 8K0959793N
Audi Q5 8R Front Door Module Control Unit ECU Driver's Side 8K0959793N
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. rhd-A2055406109
Mercedes W205 Door Wiring Front Right O/S Harness Loom Cable A2055406109
Promo price
£28.95
£17.37
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2218707292
Mercedes W221 Keyless Entry Receiver Control Module Unit ECU A2218707292
Promo price
£32.95
£19.77
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 5B4E029
Remote Control Receiver BMW X5 G05 U06 Mini F65 Receiver Radio Module 5B4E029
Promo price
£47.95
£40.76
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8V1035035E
MMI Head Unit Audi A3 RS3 8V Multimedia Navigation Control Module 8V1035035E
Promo price
£474.95
£284.97
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 9217004-1
BMW X5 X6 E70 E71 Positive Battery Cable Wiring Plus Pole 9217004
Promo price
£32.95
£19.77
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 3R0959655
Seat Exeo Air Module Control Unit ECU 3R0959655
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 9203815
BMW F01 F02 F04 Footwell Light Module Control Unit ECU FRM III 9203815
Promo price
£37.95
£22.77
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 9367672
Mini F55 F56 F57 Central Cover Information Instrument Radio 9367672
Promo price
£47.95
£28.77
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. LT1T14B321AA
Ford Transit Connect Mk2 Air Module Control Unit ECU LT1T-14B321-AA
Promo price
£47.95
£28.77
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 8645325-2
BMW F20 F21 F30 F31 LCI F32 F33 F34 Alternator Petrol Engine Unit 180A 8645325
Promo price
£32.95
£28.01
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 9281722
BMW E93 Cabrio Convertible Folding Top Roof ECU Module CTM 9281722
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A2214405406
Mercedes W221 Wiring Loom Cable Harness Door Rear Right A2214405406
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A2168704826
Mercedes W221 Xenon Headlamp Headlight Ballast Control Unit Module A2168704826
Promo price
£132.95
£113.01
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A2229009710
Tuner Box Mercedes W176 W212 W218 Digital Audio Control Unit DAB ECE A2229009710
Promo price
£94.95
£56.97
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8P4971693AB
Audi A3 8P Door Wiring Harness Loom Rear Left Right N/O/S Cabling 8P4971693AB
Promo price
£32.95
£19.77
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. A2535450140
Mercedes X253 Keyless Go Module Unit Bracket Mount Holder Support A2535450140
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 4F1971030AF
Audi A6 C6 Front Passenger Door Wiring Left N/S Harness Loom Cable 4F1971030AD
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A0009009903
Mercedes W212 E63 AMG Drive Unit Extended Control Module ECU A0009009903
Promo price
£56.95
£48.41
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 5H9971694BL
VW Volkswagen Golf CD1 Rear Door Right O/S Harness Wiring Cable Loom 5H9971694BL
Promo price
£28.95
£17.37
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 4L0959655C
Audi Q7 4L Air Module Control Unit ECU Impact Sensor 4L0959655C
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A9015400631
Earth Ground Cable Mercedes Sprinter W901 Battery Wiring Loom Engine A9015400631
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A9079060100
Mercedes Sprinter W907 Battery Power Distributor Current Limiter A9079060100
Promo price
£47.95
£40.76
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 9282420
BMW 1 3 5 Series F10 F20 F30 Reversing Camera Rear View Control Unit 9282420
Promo price
£66.95
£56.91
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 6921857
BMW X5 E39 E46 E53 Motorola Hands-free Electronics Control Unit ECU 6921857
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8V0937548
Audi A3 S3 RS3 8V Bettery Terminal Fuse Unit 8V0937548
Promo price
£28.95
£17.37
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 9263462
Radio Player BMW E81 E87 E90 E91 E92 Professional CD Control Head Unit 9263462
Promo price
£75.95
£64.56
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8W0035502B
Audi A4 B9 Wireless Charger Centre Console Phone Charging Module 8W0035502B
Promo price
£61.95
£37.17
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. 7P0907652
Yaw Sensor Audi Q7 4L Rotation Rate Unit Module 7P0907652
Promo price
£18.95
£16.11
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A1775408220
Door Wiring Mercedes W177 W247 Front Passenger Side Cable Harness A1775408220
Promo price
£23.95
£14.37
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8645168
Battery Cable BMW i3 I01 Battery CSC Lead Wiring Harness Loom 8645168
Promo price
£66.95
£40.17
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. A0009050538
Mercedes-Benz S-Class W221 Multi Purpose Camera Control Unit Module A0009050538
Promo price
£66.95
£40.17
Free delivery - Thu, Nov 13
If paid before 14:00
-15%
Part no. A2049061002-3
Mercedes W204 Radio CD Player COMAND Stereo Sat Nav Head Unit A2049061002
Promo price
£142.95
£121.51
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 03L906012C-1
Volkswagen Crafter 2E 2.0 TDI CKTC 136HP Engine Unit ECU Kit 03L906012C Manual
Promo price
£379.95
£227.97
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 6902285
BMW E39 E87 E90 E91 Trigger Contact PDC Sensor Tweeter Gong 6902285
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 8375964
BMW 5 7 X5 Series E38 E39 E53 Xenon Headlight Aim Control Unit Module 8375964
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8K0907401C
Audi A5 8T 3.0 TDI CCWA Quattro 240HP Engine Control ECU 8K0907401C Manual
Promo price
£142.95
£85.77
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 7799855-2
BMW 1 3 5 Series E60 E87 E90 M47N2 120d 320d 520d ECU Kit DDE CAS2 Key 7799855
Promo price
£474.95
£284.97
Free delivery - Fri, Nov 14
If paid before 14:00
-40%
Part no. 8626172-6
BMW F30 F32 F33 320i N20 184HP Engine Control Unit ECU DME Kit 8626172 Manual
Promo price
£313.95
£188.37
Free delivery - Thu, Nov 13
If paid before 14:00
-5%
Part no. 3414122
BMW X3 E83 Sensor Air Module Front Impact Crash Sensor 3414122
Promo price
£13.95
£13.25
Free delivery - Thu, Nov 13
If paid before 14:00
-40%
Part no. 8589145-3
BMW F45 216d B37 116HP Engine Control Unit ECU Kit DDE 8589145 FEM Key Automatic
Promo price
£474.95
£284.97
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 .