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. 4M0907590D
Audi S5 F5 Blind Spot Radar Distance Control Module Left N/S Slave 4M0907590D
PLN 664.95
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 8V4971687K
Audi A3 RS3 8V 5Dr Door Harness Loom Wiring Rear Left Right N/O/S 8V4971687K
PLN 42.95
Delivery - Fri, Dec 19
If paid before 14:00
Part no. 8J0971349A
Audi TT 8J Alternator Main Cable Wiring Harness Loom 8J0971349A
PLN 142.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A9078209400
Mercedes Sprinter W907 W910 Radio Stereo Player Head Unit A9078209400
Promo price
PLN 427.95
PLN 385.16
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. A2215460935
Mercedes W221 W216 Fuse Box Cover Control Unit Trim Panel Lid A2215460935
PLN 42.95
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6858698
BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6858698
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6970908
BMW E65 E66 Sensor Front Right Door Airbag O/S 6970908
Promo price
PLN 75.95
PLN 72.15
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. A2129009908
Mercedes SLK R172 Fuse Box Relay Control Unit SAM Module A2129009908
Promo price
PLN 474.95
PLN 332.47
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6963014
BMW E60 E61 E63 Passenger Side Door Air Module Control Unit ECU 6963014
Promo price
PLN 61.95
PLN 58.85
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9X2Q9A361CA
Range Rover L320 Sport Rear Fuel Pump Control Unit Bracket Holder 9X2Q9A361CA
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A1635400441
Mercedes-Benz M-Class ML W163 Ground Cable Right O/S Wheel Arch A1635400441
Promo price
PLN 93.95
PLN 89.25
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6968649
BMW E93 Convertible Aerial Antenna Amplifier FM/AM Left N/S 6968649
Promo price
PLN 37.95
PLN 36.05
Delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2118700726
Mercedes W211 Seat Memory Control Unit Module Front Right O/S A2118700726
Promo price
PLN 118.95
PLN 107.06
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 6933162
BMW E65 E66 On-board Navigation Display Monitor Screen 8,8" 6933162
Promo price
PLN 189.95
PLN 132.97
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A2229005118
Mercedes W205 Ambient Color Light Module ECU A2229005118
Promo price
PLN 70.95
PLN 67.40
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. A2701504400
Mercedes W176 M270 Petrol Engine Wiring Harness Loom Cable A2701504400
Promo price
PLN 807.95
PLN 565.57
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 8W0915181
Audi TT FV 8S Negative Battery Cable Lead Monitoring Module 8W0915181
PLN 70.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 9298945
BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9298945
Promo price
PLN 474.95
PLN 427.46
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A0015454416
Mercedes CL203 M271 Automatic Gearbox EGS Control Module Unit ECU A0015454416
Promo price
PLN 123.95
PLN 111.56
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6887358
BMW F10 F11 EMF Module Parking Brake Unit Electric Control 6863800
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6886185
ICM Module BMW F20 F21 F30 F31 Crash Control Unit Airbag ECU 6886185 0265020864
Promo price
PLN 56.95
PLN 54.10
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 1K0907719B
Audi A3 8P Anti Theft Alarm System Control Module Unit ECU 1K0907719B
Promo price
PLN 47.95
PLN 45.55
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A2125405710
Mercedes W212 PDC Wiring Parktronic Parking Sensor Cable Rear A2125405710
Promo price
PLN 61.95
PLN 58.85
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. A9079001403
Mercedes Sprinter W907 Module Control Unit Radar Sensor A9079001403
Promo price
PLN 949.95
PLN 664.97
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 6843898
BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 6843898
Promo price
PLN 569.95
PLN 398.97
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. A6519007500-26
Mercedes W204 W212 C220CDI 170HP OM651.911 Engine Control ECU A6519007500 Manual
PLN 237.95
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 406349
Mini Cooper One R50 R52 R53 iPod Interface Control Unit Module 0406349
Promo price
PLN 75.95
PLN 72.15
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 4B0951173
Audi A3 8L A4 B5 A6 C5 Alarm Control Module Unit ECU 4B0951173
PLN 61.95
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. A2125406105
Mercedes W212 Rear LED Wiring Cable Harness Loom A2125406105
PLN 123.95
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. A2229004220
Mercedes GLC X253 Communication Module LTE Telephone Bluetooth A2229004220
Promo price
PLN 664.95
PLN 465.47
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6932644-1
BMW 3 5 Series E60 E71 E90 E92 Suppression Filter Aerial Module Antenna 6932644
Promo price
PLN 47.95
PLN 45.55
Delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2048205189
Mercedes-Benz C-Class W204 Aerial Antenna Amplifier Unit A2048205189
Promo price
PLN 75.95
PLN 68.36
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A2129000204
Mercedes W212 Fuse Box Control Unit SAM Module Relay A2129000204
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 6791131
BMW F01 ICM Module Integrated Chassis Management QL ES Control Unit 6791131
Promo price
PLN 142.95
PLN 100.07
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 1438941
BMW X5 E53 Ground Cable Alternator Petrol 1438941
PLN 42.95
Delivery - Fri, Dec 19
If paid before 14:00
Part no. V23134-J59-X431
Mazda 6 GJ TYCO Relay Black Unit Module 4 Pin 12V V23134-J59-X431
PLN 42.95
Delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 9286236
BMW F30 Door Wiring Front Passenger Door Loom Cables Harness F31 9286236
Promo price
PLN 113.95
PLN 102.56
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 4F7910401L-1
Audi A6 C6 2.7 TDI CANC Quattro 190HP Engine Control Unit ECU Kit 4F7910401L
Promo price
PLN 1,187.95
PLN 831.57
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. A1779009902
Mercedes W177 Front Windscreen Windshield Camera Multi Purpose Unit A1779009902
PLN 275.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 9350336
BMW F06 F12 F13 F80 Mini F56 Radio CD Player Head Unit 9395949
Promo price
PLN 237.95
PLN 214.16
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 8589170
Starter Harness BMW X3 G01 X4 G02 30dX 40dX B57 Cable Base B+ Loom 8589170
Promo price
PLN 94.95
PLN 66.47
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 6825538
Comfort Module Unit BMW F20 F21 F30 F31 F32 Body Control FEM ECU LR01 6825538
Promo price
PLN 379.95
PLN 265.97
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 4G5907468K
Audi A6 C7 Gateway Interface Electrical Control Unit Module ECU 4G5907468K
PLN 712.95
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 06N971627B
Audi A3 8Y Engine Injector Module Wiring Harness Cable 2.0 TFSI 06N971627B
PLN 189.95
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A1695457740
Mercedes-Benz A B W169 W245 Bracket Starter Alternator Control Unit A1695457740
Promo price
PLN 28.95
PLN 27.50
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. F1FT10C679BA
Ford Transit Mk7 V Negative Battery Terminal Cable Wiring F1FT10C679BA
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A0009050038
Mercedes W212 Multi-Purpose Windscreen Camera Control Unit Module A0009050038
Promo price
PLN 61.95
PLN 58.85
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 7075944-2
BMW E60 E65 E70 Front Right Seat O/S Height Adjustment Drive 7075944
Promo price
PLN 94.95
PLN 90.20
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9289374
BMW X5 X6 F15 F85 F16 F86 Front Battery Fuse Box Positive Distribution Terminal
Promo price
PLN 47.95
PLN 45.55
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A2076822704
Trim Panel Mercedes W212 Dashboard Module Control Unit Cover A2076822704
Promo price
PLN 47.95
PLN 45.55
Delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 8489325
BMW i3 I01 94Ah Rex Hybrid Basic Control Unit Module ECU 8489325
Promo price
PLN 284.95
PLN 199.47
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 8W0906093F
A4 B9 35 TFSI Fuel Pump Sender Control Relay Module Unit ECU 8W0906093F
Promo price
PLN 142.95
PLN 100.07
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2469000012-2
Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012
Promo price
PLN 712.95
PLN 641.66
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9296780
BMW F20 F21 F30 F31 Control Unit Air Conditioning Module 9296780
Promo price
PLN 55.95
PLN 53.15
Delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. A2479003808
Suspension Module Mercedes C118 W177 W247 Control Unit ECU A2479003808
Promo price
PLN 560.95
PLN 392.67
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 8573257-9
BMW F20 F30 F32 120d 320d 420d Diesel N47N 163HP Engine ECU DDE 8573257 Manual
Promo price
PLN 142.95
PLN 128.66
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. RHD-A1664404337
Mercedes C292 Positive Cable Battery Starter Alternator Plus Wiring A1664404337
Promo price
PLN 284.95
PLN 199.47
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 9252550
BMW F10 F12 F20 F21 F22 F30 F31 Front Seat Control Module ECU 9252550
PLN 379.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 8474730
BMW F20 F21 F30 F31 LCI 120d 320d Diesel B47 190HP ECU DDE 8474730 Automatic
Promo price
PLN 1,424.95
PLN 1,282.46
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 7188487
BMW E93 Convertible Battery Mounting Bracket Clamp Bolt Holder Mount 7188487
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9240946
MINI R55 R56 R57 LCI R60 R61 Cover Power Distribution Fuse Box 9240946
Promo price
PLN 56.95
PLN 54.10
Delivery - Fri, Dec 19
If paid before 14:00
Part no. A0038207426
Mercedes W221 Door Module Control Unit Rear Right O/S A0038207426
PLN 61.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A6519062300
Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter A6519062300
Promo price
PLN 94.95
PLN 85.46
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 9393144
BMW G11 G30 Fuse Box Power Distribution Electrical Control Unit Box Rear 9393144
PLN 142.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2219004003
Steering Wheel Angle Mercedes C216 W221 Sensor Control Unit Module A2219004003
Promo price
PLN 474.95
PLN 427.46
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 7541084
Mini Cooper Cabrio R52 Battery Cable Plus Pole 7541084
Promo price
PLN 61.95
PLN 58.85
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 6777641-2
BMW X5 E70 E81 E87 E90 E91 E92 E93 Air Module Wiring Steering Wheel Loom 6777641
PLN 94.95
Free delivery - Fri, Dec 19
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 - Fri, Dec 19
If paid before 14:00
Part no. 04L907309R-2
Audi A3 8V 1.6 TDI 110HP DBKA Engine ECU 04L907309R Manual
PLN 189.95
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6948692
BMW E60 E61 E63 Passenger Side Door Airbag Control Module 6948692
Promo price
PLN 56.95
PLN 54.10
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 3Q0959354A
Seat Leon Mk3 Door Crash Impact Sensor Front Left Right N/O/S 3Q0959354A
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 8K0971228AH
Audi A5 8T Positive Battery Lead Terminal Cable Wiring 2.0 TFSI 8K0971228AH
Promo price
PLN 275.95
PLN 193.17
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A1669000318
Mercedes-Benz A B Class W176 W246 Front Left N/S Door Control Unit Module ECU
Promo price
PLN 123.95
PLN 117.75
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 8513250-3
BMW F10 F11 520d Diesel N47N 184HP Engine ECU Kit DDE 8513250 CAS4 Key Automatic
PLN 854.95
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9225022
BMW 2 3 4 Series F22 F30 F31 F32 Battery Power B+ Distribution Box 9225022
Promo price
PLN 123.95
PLN 117.75
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A1669006507
Door Module Mercedes ML W166 C292 Rear Right O/S Door Control Unit A1669006507
Promo price
PLN 61.95
PLN 58.85
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6947216
BMW 3 Series E93 Convertible Rear Bumper FM Radio Aerial Antenna 6947216
Promo price
PLN 75.95
PLN 72.15
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2139068701-1
Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068701
Promo price
PLN 75.95
PLN 68.36
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9338153
Mini F54 F60 Clubman Countryman Antenna Aerial Amplifier AM / FM Unit 9338153
Promo price
PLN 75.95
PLN 72.15
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 191937503
VAG VW Volkswagen Audi Seat Skoda Relay Unit 4 Pins 12V 40A 191937503
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. A6519003403-1
Mercedes W906 314 CDI OM651 Engine Module ECU Kit A6519003403 Automatic
Promo price
PLN 1,899.95
PLN 1,329.97
Free delivery - Fri, Dec 19
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 - Fri, Dec 19
If paid before 14:00
-5%
Part no. 8K0907064DC
Body Control Module Audi A4 B8 A5 8T BCM Comfort Control Unit 8K0907064DC
Promo price
PLN 94.95
PLN 90.20
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 3D0959759B
VW Volkswagen Phaeton 3D Seat Control Unit ECU Front Passenger Side 3D0959759B
PLN 94.95
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A2079052800
Mercedes-Benz E-Class W207 Cabrio A207 Anti Theft Alarm Module Control Unit ECU
Promo price
PLN 94.95
PLN 90.20
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9165623
BMW X5 X6 Series E70 E71 Airbag Control ECU Unit Module 9165623
Promo price
PLN 47.95
PLN 45.55
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6949229
Mini R52 Cabrio Convertible DWA Rear Door Alarm System Module Unit 6949229
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2059068501-1
Fuse Box Mercedes W205 S205 W213 Fuse Box Front Relay Control Module A2059068501
Promo price
PLN 94.95
PLN 85.46
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 4E0035541S
Audi Q7 4L Radio Multimedia Receiver Control Module Unit 4E0035541S
Product currently unavailable
-5%
Part no. A2208205042
Mercedes-Benz S W220 Front Seat Adjustment Left Motor Actuator N/S A2208205042
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 4H0907508
Audi RS6 C7 Acceleration Engine Sensor Module Control Unit ECU 4H0907508
Promo price
PLN 61.95
PLN 58.85
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 8P0907279P
Audi A3 8P Gateway Interface Onboard Supply Control Module Unit ECU 8P0907279P
Product currently unavailable
-10%
Part no. 3457050
Bluetooth Head Unit Mini Cooper R55 R56 R57 Radio Boost CD USB 3457050
Promo price
PLN 1,377.95
PLN 1,240.16
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 4H0907801H
Parking Brake Module Audi A6 C7 A7 4G A8 4H Handbrake Control Unit 4H0907801H
Promo price
PLN 94.95
PLN 90.20
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 8798189-1
Basic Head Unit BMW F45 X1 F48 Mini F55 F56 Sat Navigation Radio Stereo 8798189
Promo price
PLN 807.95
PLN 727.16
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A1648205389
Mercedes ML W164 Aerial Antenna Amplifier Unit Module A1648205389
Promo price
PLN 94.95
PLN 85.46
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2535400601
Mercedes X253 Starter Motor Wiring Harness Cable A2535400601
Promo price
PLN 94.95
PLN 85.46
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 9328591
BMW X6 F16 Boot Trunk Lid Tailgate Wiring Loom Harness Cable 9328591
Promo price
PLN 123.95
PLN 111.56
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2139005223
SAM Module Mercedes W213 C238 Control Unit Front ECU A2139005223
Promo price
PLN 142.95
PLN 128.66
Free delivery - Fri, Dec 19
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 .