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
Part no. 7639661
BMW F20 Alternator Engine Alternator Generator Denso 170A Petrol N55 7639661
PLN 142.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A0018203126
Mercedes W168 Air Module Belt Locking System Sensor Control Unit Module ECU
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A0045452905
Mercedes Relay Fuse Unit Module 4 Pins Grey A0045452905
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A1635450440
Mercedes-Benz M-Class ML W163 Holder Bracket Engine Control Unit A1635450440
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2115450301-1
Mercedes S211 W211 W219 Fuse Distribution Box Unit A2115453901
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 10723AF
Ford Transit Connect Battery Box Tray Housing Holder Bracket 10723AF
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Oct 08
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 - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7795485
BMW X1 E81 E84 E87 E90 E91 Earth Cable Battery Cable 7795485
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8T0959792D
Audi A5 8T Front Door Control Module Unit Left N/S 8T0959792D
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 420919275-BLM
Audi A5 8T Rear Bumper PDC Parking Distance Sensor Black Magic Pearl - C9Z
PLN 42.95
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8482365
BMW G20 Installation Cable Wiring Loom 8482365
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 9151979
BMW E60 E90 Dashboard Dash Onboard Monitor Display Screen 8.8" CCC
PLN 142.95
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 9242670
DVD Changer BMW F01 F10 F11 F12 F20 F30 Disc Changer Control Unit 9259800
Promo price
PLN 474.95
PLN 332.47
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8387547
Fuse Box Base BMW X3 E83 Mini R50 R53 Battery Positive Cable B 8387547
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2118209126
Mercedes-Benz C E Class W203 W211 Alarm Anti Theft System Control Module Unit
Promo price
PLN 18.95
PLN 18.00
Delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 9876796
Telematics Module Mini F55 LCI 4g Bluetooth Control Module Unit Ecu 9876796
Promo price
PLN 284.95
PLN 199.47
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 7570488-2
Mini Cooper 2 R50 R52 R53 W10 1.6 Petrol Engine Starter Motor Remy 7570488
Product currently unavailable
-5%
Part no. A2465409611
Mercedes-Benz A B Class W176 W246 Battery Surround Trim Box Bracket A2465409611
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 8693361
BMW F87 M2 Engine Control ECU Kit DME 8693361 N55 370HP Key Dual Clutch
Promo price
PLN 3,324.95
PLN 2,327.47
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6948729
BMW 5 Series E60 Wiring Switch Engine Hood Bonnet Cable 6948729 61126948729
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9116801
Hands Free Module BMW E60 E90 Everest Motorola Non GPS Phone 9116801
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9239985
BMW F10 F11 Control Unit ECU Module Airbag Safety Unit 9239985
Promo price
PLN 65.95
PLN 62.65
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. 9262871
BMW F01 Front Door Wiring Loom Cable Harness 9262871
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. A2218205375-CS
Mercedes CLK S Class C209 W209 W221 Roof Antenna Shark Radio Silver A2218205375
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9276064
BMW X3 F25 Antenna Aerial Diversity Amplifier Unit 868 MHZ 9276064
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. 7561684-10
BMW E60 530i E90 330i N52 258HP Engine Control Unit ECU DME 7561684 Automatic
Promo price
PLN 474.95
PLN 427.46
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. A1645403130
Mercedes W164 Positive Battery Cable Wiring A1645403130
Promo price
PLN 664.95
PLN 465.47
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 8512499-8
BMW E87 E90 LCI N47 118d 318d 143HP Diesel ECU Kit DDE 8512499 CAS3 + Key Manual
Promo price
PLN 949.95
PLN 664.97
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. 3450435
Mini Cooper One R56 High SPEG H1 Fuse Distribution Box 3450435
Promo price
PLN 189.95
PLN 170.96
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7490465
BMW F10 F20 F30 F31 Mini F55 F56 Seat Heating Module Control Unit ECU 7490465
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A0025427219
Mercedes W169 W245 W204 W212 Relay 4-Pin Black Hella A0025427219
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 1439674
BMW X5 E53 Base B Positive Battery Terminal Cable Cover Compartment
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. A1179001702
Mercedes GLA X156 Interior SRS Air Module Seat Belt Tensioner A1179001702
Promo price
PLN 379.95
PLN 265.97
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6926962
BMW E60 E61 Front Seat Adjustment Switch Right O/S 6926962 6930048
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. 8578504
BMW F30 LCI 335dX N57Z Engine Gearbox Module Wiring Cable Loom Harness 8578504
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 9248315
Mini R57 R58 R60 Bluetooth Combox Control Module Audio ECU Harman Becker 9248315
PLN 617.95
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. A2045458401
Mercedes W204 Fuse Box Terminal Connection Unit A2115452301
Promo price
PLN 854.95
PLN 598.47
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. A1679008405
Mercedes Sprinter W907 W910 Front Door Module Control Unit Left N/S A1679008405
PLN 569.95
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 8K0907064FF
Audi A4 S4 B8 Body Control Comfort Unit Module BCM2 Unit ECU 8K0907064FF
Promo price
PLN 474.95
PLN 332.47
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 8380409
BMW X5 E53 Fuse Distribution Box Relay Board 6907395 8380409 6909721
PLN 42.95
Delivery - Wed, Oct 08
If paid before 14:00
Part no. A1769051600
Mercedes W176 Front Pressure Impact Crash Sensor Unit Module
Product currently unavailable
Part no. 7806976-1
BMW X5 E70 3.0d M57N2 235HP Engine Control Unit ECU KIT DDE 7806976 Automatic
PLN 1,329.95
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. A2215406562
Mercedes W204 Petrol Fuel Pump Control Unit Module A2215406562
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 7L0937503
Volkswagen Touareg 7L Fuse Box Relay Control Unit Module 7L0937503
PLN 189.95
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. A2139008530
Mercedes W213 W447 Transmission Gearbox Control Unit Module ECU A2139008530
Promo price
PLN 189.95
PLN 132.97
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A0055422618
Rate Sensor Mercedes W212 ESP Yaw Rotation Control Unit Module A0055422618
Promo price
PLN 46.95
PLN 44.60
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7615305
Engine Wiring BMW F20 F21 F30 F31 N13 Loom Module Harness Cable 7615305
Promo price
PLN 189.95
PLN 180.45
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. 14B296AA
Ford Transit Connect Yaw Sensor ESP Speed Sensor Control Unit Module 14B296AA
Promo price
PLN 256.95
PLN 231.26
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 4H0937555
Audi A8L 4H Fuse Box Relay Chamber Lower Cover Lid Housing 4H0937555
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9174261
BMW E60 E87 E90 Telematics Bluetooth Control Unit Module ECU 9174261
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 9281518
BMW F20 F21 F22 F30 Radio Professional CD Bluetooth Headunit Control 9281518
Promo price
PLN 949.95
PLN 664.97
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. GK3T-14A120-AC
Ford Transit Positive Battery Lead Harness Wiring Cable Loom GK3T-14A120-AC
Promo price
PLN 218.95
PLN 197.06
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9172019
BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module 9172019
Promo price
PLN 18.95
PLN 18.00
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8654635
Mini Cooper S F55 F56 Petrol Positive Battery Alternator Starter Cable 8654635
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9210863
BMW X3 F25 Fuse Box Power Distribution Module Relay Unit 9210863
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 6C1Q-10K019-AC
Ford Transit MK7 2.4 TDCi Diesel Alternator Bracket Mount Support 6C1Q-10K019-AC
PLN 42.95
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A4148200526
Mercedes Vaneo W414 Front Left Right Door N/O/S Control Unit Module A4148200526
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6909776
BMW X5 Series E53 Control Element Light Switch 6909776
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
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 - Wed, Oct 08
If paid before 14:00
-10%
Part no. A0009006102
Mercedes Vito W639 ECU Control Unit Crash Impact Module Air Module A0009006102
Promo price
PLN 189.95
PLN 170.96
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 240720782R
Renault Trafic III VIvaro B Wiring Connector Additional Horn Cable 240720782R
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A0005456616
Mercedes W212 Automatic Gearbox EGS Control Module Unit ECU A0005456616
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. 8W0941824AK
Audi A4 B9 A5 F5 Q5 FY Fuse Box Battery Terminal 8W0941824AK
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 8P4035223B
Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223B
Promo price
PLN 284.95
PLN 199.47
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 8678967
Mini Cooper R56 Petrol Engine Installation Wiring Loom Harness 8678967
Promo price
PLN 170.95
PLN 119.67
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9226357
BMW F20 F21 F30 TOP HIFI Loudspeaker Tweeter Harman Kardon 9226357
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. 9350313
BMW F90 M5 G11 G30 Fuse Box Power Distribution Unit Front Right O/S 9350313
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 9267467
BMW F13 Body Control Module Electronic Junction Box JBBFE 3 PL6 V3 9267467
Promo price
PLN 284.95
PLN 199.47
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. A2139003029
Mercedes A238 Fuse Box Control Unit SAM Module Relay A2139003029
Promo price
PLN 379.95
PLN 265.97
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. 7822015
BMW G20 G21 G26 330d 430d B57P Diesel Starter Cable Wiring B+ 7822015
Promo price
PLN 284.95
PLN 256.46
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. A2469050201
Mercedes C117 X156 Antenna Amplifier Control Unit Module A2469050201
Promo price
PLN 132.95
PLN 119.66
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7515253
Mini Cooper One R50 R52 R53 R55 R56 R57 R58 R59 R60 R61 Earth Ground Cable
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6782372
BMW X1 X3 Z4 E83 LCI E84 E89 E90 E91 E92 Speed Sensor Cluster 6782372
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9285504
Distributor BMW X5 F15 X6 F16 B + Battery Power Distributor 9285504
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 8Y0035042C
Audi S3 8Y Body Control Comfort Module ECU Unit Bluetooth 8Y0035042C
Promo price
PLN 4,749.95
PLN 3,324.97
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6989713
BMW 1 3 Z4 Series E88 E89 E93 Convertible Cabrio DWA-Alarm System Module 6989713
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. A0009060226
Starter Mercedes Vito W447 Diesel OM622 Starter Motor A0009060226
Promo price
PLN 237.95
PLN 166.57
Free delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. 9244161
BMW F01 F02 F03 F04 Head Unit Radio Media Player Navigation 9244161
Promo price
PLN 902.95
PLN 812.66
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9811783
Mini Cooper Paceman R61 Wiring Loom Harness Front Cable 9811783
Promo price
PLN 37.95
PLN 36.05
Delivery - Wed, Oct 08
If paid before 14:00
Part no. 7621178-5
BMW E81 E87 LCI E90 N43 118i 318i Engine Control ECU DME Kit 7621178 Automatic
PLN 1,424.95
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 8P0907115AP-1
Audi S3 8P 2.0 TFSI CDLA 265HP Engine ECU Kit Ignition + Key 8P0907115AP Manual
Promo price
PLN 1,424.95
PLN 997.47
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. 8685853
BMW F40 X1 F48 Mini F55 F56 F60 Engine Injector Wiring Loom Harness 8685853
Promo price
PLN 284.95
PLN 199.47
Free delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. A1664403436
Mercedes GLE W166 Wiring Harness Automatic Gearbox Cable Loom A1664403436
Promo price
PLN 427.95
PLN 299.57
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. A2129014606-1
Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
PLN 332.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2125400382
Mercedes W212 Cover Fuse Box Trim Panel Lid A2125400382
Promo price
PLN 46.95
PLN 44.60
Delivery - Wed, Oct 08
If paid before 14:00
-10%
Part no. 06H903016L
Audi A5 8T Engine Alternator Generator 14V 140A Bosch 2.0 TFSI 06H903016L
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A1728202989
Mercedes SLK R172 Roadster Antenna Amplifier Control Module A1728202989
Promo price
PLN 85.95
PLN 81.65
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9267200-1
BMW E92 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9267200
Promo price
PLN 170.95
PLN 162.40
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7181313
BMW X1 E84 E90 E91 Door Handle LED Light Lighting Left N/S 7181313
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6926961-1
BMW E60 E61 X5 E70 X6 E71 F07 F10 F11 Seat Adjustment Switch Left N/S 6926961
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9277818
Antenna Amplifier BMW F23 Cabrio FM Radio Booster Unit Module 9277818
Promo price
PLN 51.95
PLN 49.35
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6928523
BMW 3 Series E46 M47N Diesel Negative Earth Cable Battery 6928523
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6917548
Mini R50 R53 Rear PDC Ultrasonic Parking Sensor Pure Silver Metallic 900
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2124407038
Negative Cable Mercedes W212 Battery Earth Wiring Loom A2124407038
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Oct 08
If paid before 14:00
-30%
Part no. A2139005311
Mercedes W213 Head Unit CD Media Player Audio Auto Radio Controller A2139005311
Promo price
PLN 712.95
PLN 499.07
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A1725400433
Electric Wire Mercedes SLK R172 M271 Alternator Prefuse Box Wiring A1725400433
Promo price
PLN 93.95
PLN 89.25
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9134483
BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9134483
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9393675
BMW X3 F25 Body Control Module ECU Junction Box JBBFE III 3 V8 Lear 9393675
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7938196
PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Distance Sensor Unit 7938196
Promo price
PLN 113.95
PLN 108.25
Free delivery - Wed, Oct 08
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 .