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
-30%
Part no. 8579479-2
BMW F20 F21 F30 116d 316d N47N 116HP Engine Control Unit ECU DDE 8579479 Manual
Promo price
PLN 355.95
PLN 249.17
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2215400205
Mercedes W221 Brake Pad Wear Indicator Sensor Front Left Right N/O/S A2215400205
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2139004709
Mercedes W213 Door Module Rear Left N/S Control Unit A2139004709
Promo price
PLN 123.95
PLN 117.75
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A1635400734
Mercedes-Benz M ML W163 Rear Left Right Door Wiring Loom Harness A1635400734
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 7857551
Battery Cable BMW F80 M3 F82 M4 Wire Lead Positive Alternator Starter B+ 7857551
Promo price
PLN 237.95
PLN 226.05
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8512499-12
BMW X1 E84 xDrive 18d N47 143HP Engine Unit ECU DDE 8512499
Promo price
PLN 189.95
PLN 170.96
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8T0035223L
Audi A4 B8 A5 8T Audio Amplifier Sound Booster Control Unit Module 8T0035223L
PLN 807.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 2432355
Ford Transit Custom Alternator 240A 14V 2.0 EcoBlue GK2T-10300-CC
PLN 878.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A2218708326
Mercedes W221 Rear View Backup Camera Control Unit Module A2218708326
Promo price
PLN 208.95
PLN 146.27
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 6819329
KaFAS Camera BMW i3 I01 F10 F20 F30 LCI Speed Control ECU Module Unit 6819329
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 2Q0980653G
Audi Q2 GA Front Camera Module Lane Assist Control Unit 2Q0980653G
Promo price
PLN 284.95
PLN 256.46
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 7515206
Mini Cooper One R50 R52 Battery Alternator Starter Cable Wiring 7515206
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2139007105
Air Module Mercedes W213 S213 W238 SRS Control Unit ECU A2139007105
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 6923270
MINI Cooper One R50 R53 Control Unit For Radio Remote Control 433MHZ 6923270
Promo price
PLN 218.95
PLN 197.06
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8W0906259N-1
Audi A5 F5 45 TFSI DKNA 245HP Quattro Engine ECU Kit 8W0906259N Gateway + Key
Promo price
PLN 1,424.95
PLN 997.47
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 6910719
BMW Z4 E85 E86 CD-Changer Bracket Left N/S Holder Mount Carrier 6910719
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8476016
Battery Cable BMW X3 G01 X4 G02 Diesel Alternator Starter Positive Cable 8476016
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 9393667
BMW F10 LCI Body Control Module ECU Unit JBBFEIII V2 PL6 9393667
Promo price
PLN 237.95
PLN 166.57
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. A2479004707
Mercedes W177 Dynamic Adaptive Suspension System Control Unit Module A2479004707
PLN 427.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 9273629
BMW F11 Footwell Light Module ECU Control Unit FRM III TEMIC 9273629
PLN 142.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A4475401440
Mercedes Vito W447 Fuse Box Relay Control Unit Module A4475401440
Promo price
PLN 237.95
PLN 166.57
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9237055
Antenna Diversity BMW F07 GT Control Unit Module Aeral Amplifier 868 MHZ 9237055
Promo price
PLN 170.95
PLN 162.40
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 9266384
BMW 5 Series F10 F11 LCI Boardmonitor Central Information Display 7" 9266384
Promo price
PLN 170.95
PLN 119.67
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2749062100
Starter Motor Mercedes W213 C238 C253 Engine A2749062100
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2219000804
Parking Module Mercedes W221 W216 Sensor PDC Distance Control Unit A2219000804
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A1729006609-2
Mercedes SLK R172 Radio CD Player Sat Nav Comand Head Unit A1729006609
Promo price
PLN 617.95
PLN 556.16
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8K0959792J
Audi A4 B8 Door Module Front Left N/S Control Unit Module ECU 8K0959792J
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2128204713
Seat Wiring Mercedes W212 Front Loom Harness Passenger Side A2128204713
Promo price
PLN 66.95
PLN 63.60
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9160558
BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8582280-4
BMW F20 116d N47N 116HP Engine Control ECU DDE 8582280 Automatic Transmission
Promo price
PLN 854.95
PLN 598.47
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8647255
BMW F20 LCI F21 F22 Integrated Supply Control Module Unit 8647255
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. A0009004836
Mercedes W177 W247 Driving Dynamics Module Control Unit ECU A0009004836
PLN 664.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 510971693J
Volkswagen Golf Sportsvan Door Harness Rear Left N/S Door Wiring Loom 510971693J
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2038000178
Mercedes-Benz C CLK Class W203 C209 Vacuum Solenoid Valve A2038000178
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
Part no. A4535402703
Smart ForTwo C453 Battery Negative Minus Wiring Cable A4535402703
PLN 142.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 03L903023K-1
Audi A3 8P A4 A5 B8 Q5 Alternator Generator Diesel Electrical Unit 03L903023K
PLN 189.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 6819334
BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 6819334
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2035407308
Mercedes-Benz C-Class W203 Rear Left Right Door Wiring Loom Harness A2035407308
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8691827-2
Mini Cooper F56 B38 136HP Petrol Engine ECU Kit DME 8691827 BDC + Key Manual
Promo price
PLN 1,709.95
PLN 1,196.97
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 4H0959591A
Audi A8 D4 4H Sunroof Wind Deflector Module Control Unit 4H0959591A
PLN 123.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 7592511
BMW E88 E90 E91 E92 LCI F20 F21 F30 Ignition Wiring N55 Engine Harness 7592511
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9171217
BMW E93 ECU Body Control Module H1 PL2 JBBFE Junction Box 9171217
Promo price
PLN 161.95
PLN 145.76
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 95B955941D
Porsche Macan 95B PDC Parking Sensor Wiring Loom Front Bumper 95B955941D
PLN 569.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8Y0963554B
Volkswagen Golf 8 Rear Seat Couch Occupancy Sensor Unit 8Y0963554B
Promo price
PLN 104.95
PLN 99.70
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 7E0919506
VW Volkswagen Transporter T5 Magnetic Clutch Relay Unit Black 454 7E0919506
PLN 332.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9143823-1
BMW E88 E93 LCI ECU Air Control Unit Module Controller 9143823
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 5LA907357H
Audi A6 C6 Front Lamp Headlight Range Control Module Unit ECU 5LA907357H
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8K0959793S
Audi A4 B8 Front Door Control Module Unit ECU 8K0959793S
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2034400033-2
Mercedes CLC CL203 Wiring Loom Cable Door Front Left Right N/O/S A2034400033
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8519663-16
Mini Cooper SD R60 R61 ALL4 N47N 143HP ECU Kit DDE 8519663 CAS3 Key Manual
Promo price
PLN 807.95
PLN 565.57
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8W1959595D
Audi Q5 FY Rear Door Control Module Unit Left Right N/O/S 8W1959595D
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A1765406708
Mercedes W176 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1765406708
Promo price
PLN 85.95
PLN 81.65
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 7N0959795E
Skoda Yeti 5L Door ECU Module Control Unit Rear Left Right N/O/S 7N0959795E
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
Part no. NU5T-14B531-JA
VW Amarok Mk2 Door Module Control Unit Front Rear Driver's Side NU5T-14B531-JA
PLN 189.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 7P6971693A
Volkswagen Touareg 7P Door Harness Wiring Loom Rear Left Right N/O/S 7P6971693A
PLN 94.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9258350
Air Module BMW F20 F21 F22 F30 F31 F32 Control Unit ECU 9258350
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 7542310-7
Mini Cooper R50 W10 Petrol Engine Control Unit Module ECU DME 7542310 Manual
Promo price
PLN 113.95
PLN 108.25
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2059006615
Mercedes W205 Windscreen Rain Sensor Front Control Unit A2059006615
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 6970337
BMW E92 Seat Backrest Adjustment Adapter Lead Cable 6970337
Promo price
PLN 75.95
PLN 72.15
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 6854856
BMW F10 F11 F12 EMF Module Parking Brake Unit Electric Control 6854856
Promo price
PLN 70.95
PLN 63.86
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. A0009827723-1
Mercedes W176 W204 W246 Fuse Relay 4-Pin Unit Black Hella SET X2 A0009827723
PLN 123.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 4H0035225N
Audi A8L 4H Antenna Aerial Amplifier 4H0035225N
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8601245
Earth Ground Cable BMW i3 I01 Hybrid Rex Electric Engine Wiring 8601245
Promo price
PLN 75.95
PLN 72.15
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 4F0959792R
Audi A6 C6 Front Door Left N/S Module Unit Control ECU 4F0959792R
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8576341-7
BMW F20 F21 F30 F31 116d 316d 116HP N47N ECU Kit DDE 8576341 + Key + FEM
Promo price
PLN 854.95
PLN 598.47
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 4F1862335
Audi Q7 4L Bluetooth Interface Telephone Control Module ECU Unit 4F1862335
Promo price
PLN 284.95
PLN 256.46
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 1K0971250AL
Audi A3 8P Negative Battery Terminal Cable Wiring Battery Wire 1K0971250AL
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9247467-1
BMW E92 LCI Body Control Module Unit PL2RR JBBFE L1 61359247467 9247467
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A0048201910
Mercedes W124 E280 Acceleration Sensor For Belt Locking Retractor A0048201910
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
Part no. 7L5907401-1
Porsche Cayenne 9PA 3.0 TDI CASA 239HP Engine ECU Kit 7L5907401 Key + Ignition
PLN 2,279.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9194824
BMW Z4 E89 Convertible Roadster Air Module ECU Control Unit 9194824
Promo price
PLN 332.95
PLN 299.66
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2218704192
Mercedes W221 Air Condition Climate Control Module Unit A2218704192
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2215408245
Mercedes W221 Air Suspension Control Unit Module ECU A2215408245
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 3404568
BMW X3 Series E83 2.5i 3.0i Engine Starter Motor Positive Battery Cable 3404568
Promo price
PLN 66.95
PLN 63.60
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9154413-1
BMW E93 LCI Convertible GPS Antenna Aerial Unit Module 9154413
Promo price
PLN 93.95
PLN 84.56
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2049004106
Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2049004106
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9297282-1
BMW E63 E64 Battery Power Cable Lead Positive Underfloor Red 9297282
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9670855680
Peugeot Partner Diesel Glow Plug Wiring Loom Cable Wiring 9670855680
Promo price
PLN 66.95
PLN 63.60
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 9399427-1
Radio Head Unit BMW F20 F21 F22 F30 F31 Basic Media Navigation Headunit 9399427
PLN 474.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A2135400329
Mercedes X253 Electrical Wiring Harness Cable Hybrid A2135400329
Promo price
PLN 379.95
PLN 265.97
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8E0910115K
Audi A4 B7 2.0 TFSI BWE 200HP Engine Control ECU 8E0910115K Manual
PLN 284.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8512415
Mini Cooper D R60 ALL4 N47N 112HP Diesel Engine Control Unit ECU DDE 8512415
Promo price
PLN 189.95
PLN 132.97
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 6925715
BMW 1 3 Series E81 E82 E87 E90 E91 E92 Positive Battery Terminal Cover 6925715
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9149673
BMW 5 Series E60 E61 LCI Alarm System Unit Ultra Sonic Module 9149673
Promo price
PLN 37.95
PLN 36.05
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A0035421019
Relay Mercedes C117 GLA X156 ML W166 W176 W246 5 Pins Yellow A0035421019
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 5WA962133E
Volkswagen Golf 5G Keyless Entry Module Aerial Antenna 5WA962133E
Promo price
PLN 75.95
PLN 68.36
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8K0959793C
Audi A4 B8 Door Module Control Unit ECU Front Driver's Side 8K0959793C
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 7634061
BMW F10 Engine Transmission Module Cable Loom Wiring Harness 7634061
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9156654
BMW 3 Series E93 Rear Antenna Aerial Amplifier AM/FM 9156654
Promo price
PLN 55.95
PLN 53.15
Delivery - Mon, Dec 22
If paid before 14:00
Part no. 8486547-2
Mini Cooper F55 F56 Dual-Clutch Transmission Gearbox Control Unit Module DCT
PLN 1,662.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 6C1T-12B637-JJ
Ford Transit Mk7 Engine Wiring Loom Harness Cables 2.2 TDCi 6C1T-12B637-JJ
Promo price
PLN 474.95
PLN 332.47
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A1568200089
Mercedes W176 W246 Tailgate Aerial Antenna Amplifier Unit A1568200089
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 7W93-11A134-AA
Jaguar XF 250 Power Adapter Battery Positive Terminal 7W93-11A134-AA
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A1779002207
Mercedes W177 Rear Left Right N/O/S Door Control Module A1779002207
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 6923217
BMW 6 E64 E64 LCI Bracket Control Unit Vehicle Electrical System 6923217
Promo price
PLN 18.95
PLN 18.00
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A1729060105
Mercedes SLK R172 Rear Fuse Box SAM Relay Control Unit Module A1729060105
Promo price
PLN 332.95
PLN 233.07
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 6986081-2
CD Changer BMW E60 E61 E63 E64 Compact CD Changing Unit 6986081
Promo price
PLN 161.95
PLN 145.76
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 1477973
Ford Transit Connect Mk1 Starter Motor Engine Actuator 1.8 Diesel 2T14-11000-BC
PLN 189.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 1K0951253
VW Volkswagen Audi Seat Relay 449 Unit Module 4 Pins 1K0951253
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
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 .