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. 9289637
BMW F10 Rear Window Parcel Shelf Loudspeaker Speaker Left Right N/O/S 9289637
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A0038207726
Mercedes W212 Siren Alarm Horn Signal Module Unit A0038207726
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A4475406777
Alternator Wire Mercedes Vito W447 Battery Alternator Cable A4475406777
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2218707526
Mercedes W221 Air Module Control Unit ECU SRS Module A2218707526
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 8E0959643B
Audi A4 B7 Crash Impact Airbag Sensor Unit Module 8E0959643B
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2139001722
Mercedes W213 W907 Transmission Gearbox Control Unit Module ECU A2139001722
Promo price
€32.95
€28.01
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9321023
BMW F45 X1 F48 Mini F55 F56 B+ Junction Terminal Power Distribution Box 9321023
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6812218
BMW X1 F48 Rear Left Right N/O/S Door Wiring Harness Loom 6812218
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 9381882
BMW F30 F31 F80 M3 Sound Amplifier Hifi Audio Control Unit Harman Becker 9381882
€70.95
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 9114356
BMW E60 Dashboard Dash Onboard Display Monitor Screen 8.8" CCC
€37.95
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2135405542
Mercedes W205 Electrical Wire From Transmission To Body Ground Cable A2135405542
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7522284-1
Mini Cooper One R50 R52 W10 1 Battery Cable Plus Pole 7522284
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 3412005
BMW X3 Series E83 Front Door Airbag Crash Impact Sensor 3415299 3412005
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9231515
BMW F31 Rear Antenna Aerial Amplifier AM/FM DAB 9231515
Promo price
€89.95
€76.46
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7798012
BMW 1 3 5 Series E60 E87 LCI E90 E91 N47 Preheater System Starter Cable Lead
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 5A130F9
BMW F40 F44 G20 Parking Control Module Unit USS ECU LOW 5A130F9
Promo price
€37.95
€32.26
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 8513250-3
BMW F10 F11 520d Diesel N47N 184HP Engine ECU Kit DDE 8513250 CAS4 Key Automatic
€203.95
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A1679008311
Mercedes C238 Door Control Unit Module ECU Front Left N/S A1679008311
€47.95
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6964142
BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver-Side 6933266
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A0025428019
Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428019
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 6772742
BMW 3 4 Series F80 M3 F82 M4 Control Unit Active Sound Design 2622362
Promo price
€222.95
€133.77
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 8K0907383E
Audi A5 8T Towbar Trailer Hitch Control Module Unit ECU HELLA 8K0907383B
€56.95
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A1635403110
Mercedes-Benz M ML W163 Rear Left Right Door Wiring Loom Harness A1635403233
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
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
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2115458532
Mercedes W211 W219 Body Control Module Control Unit ECU A2115458532
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 6950089
BMW E81 E87 E90 Hands Free Electronics Charging Bluetooth Module MULF 6950089
Promo price
€47.95
€28.77
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7222633-1
BMW E90 E91 LCI Flat Cable Wiring Wire CAS Start Stop ECU Loom 7222633
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9329700
BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9329700
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 6834091
BMW F87 F80 F82 Audio Amplifier Harman Becker Active Sound Design System 6834091
Promo price
€99.95
€59.97
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A0009821012
Mercedes W166 W213 C238 Power Distribution Plate Control Unit Module A0009821012
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 4F0907280B
Audi Q7 4L On Board Onboard Supply Module Control Unit ECU 4F0907280B
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A2229063701
Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063701
€28.95
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 03L906018LB
Audi A6 C7 2.0 TDI CGLC 177HP Engine Control Unit ECU 03L906018LA Automatic
Promo price
€75.95
€45.57
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2055400428
Battery Wiring Mercedes GLC X253 C253 Diesel OM651 Starter Cable A2055400428
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2139000814
Mercedes W205 W213 C238 Tailgate Lift Boot Lid Control Unit Module A2139000814
Promo price
€32.95
€28.01
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7615308
BMW F20 F21 F30 Petrol N13 Wiring Loom Harness Engine Gearbox Manual 7615308
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7835872
BMW 5 Series E60 E63 E64 Carrier Holder Amplifier/Video Module Fairing EDC
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. A2709002100-1
Mercedes W176 W246 A180 B180 BlueEFFICIENCY 270.910 122HP Engine ECU A2709002100
Promo price
€332.95
€199.77
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7M0951253C
Volkswagen T5 Audi Seat Skoda Relay Black Control Unit 5 Pin 12V 7M0951253C
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7849627
BMW F80 M3 F82 M4 Engine Valvetronic Wiring Cable Loom Harness 7849627
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7195197
BMW E88 Convertible Folding Top Roof ECU Module CVM Bracket Holder Mount 7195197
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7522284
Mini Cooper One R50 R52 W10 Battery Cable Plus Pole 7522284
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. A6401501891-1
Mercedes W169 W245 A200 B200 CDI OM640.941 140HP Engine ECU Kit Key A6401501891
Promo price
€237.95
€142.77
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 8644376
BMW G20 G30 F40 F45 Mini F54 F56 F60 Crankshaft Position Sensor 8644376
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A1679008711
Mercedes W205 Front Door Module Right O/S Control Unit ECU A1679008711
€37.95
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2038700326
Mercedes CLC CL203 Front Left N/S Door Control Module Unit A2038700126
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2465411005
Battery Cover Mercedes C117 W176 W246 Box Trim Lid Panel Housing A2465411005
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 03L906018RC-1
Audi Q3 8U 2.0 TDI CFGC Quattro Engine ECU Kit 03L906018RC Ignition + Key Manual
Promo price
€189.95
€113.97
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 8506199-2
BMW E60 E61 LCI 520d N47 Diesel Engine ECU Kit DDE CAS3 + Key 8506199
Promo price
€284.95
€170.97
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6928944
BMW X3 Series E83 Battery Positive Cable Fuse Box 61136928944 6928944
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A1698209926
Mercedes W169 W245 ECU Air Control Unit Sensor Module A1698209926
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2049005410
Mercedes W204 Sat Nav Radio CD Player Radio Head Unit A2049005410
Promo price
€66.95
€56.91
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A1729006503
Mercedes SLK R172 Roadster Folding Roof Module Vario Control Unit A1729006503
Promo price
€66.95
€56.91
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A1569007702
Signal Actuation Module Mercedes W176 W246 SAM Control Unit ECU A1569007702
Promo price
€32.95
€28.01
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 8510832
BMW E90 E91 LCI N47N 318d 143HP Engine Control Unit ECU DDE 8510832 Automatic
Promo price
€151.95
€91.17
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A0005468502
Battery Cover Mercedes W205 W212 Battery Positive Pole Cover Red A0005468502
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 3457050
Bluetooth Head Unit Mini Cooper R55 R56 R57 Radio Boost CD USB 3457050
Promo price
€322.95
€274.51
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 8685853
BMW F40 X1 F48 Mini F55 F56 F60 Engine Injector Wiring Loom Harness 8685853
Promo price
€85.95
€51.57
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7514357
BMW Z4 E85 Roadster Cabrio Cable Alternator Starter Base B 7514357
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 7622980
Wiring Harness BMW F20 F21 F30 Motor Sensor System Module 2 7622980
Promo price
€37.95
€32.26
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 06L903027
Audi Q5 FY Alternator Generator Valeo 2.0 TFSI 06L903027
Promo price
€94.95
€80.71
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 6C1T14A481CA
Ford Transit Mk7 Under Bonnet Fuse Box Module Onboard Supply 6C1T14A481ACA
€70.95
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. A2059008204
Mercedes W205 SAM Module Fuse Box Relay Control Unit A2059008204
Promo price
€89.95
€53.97
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 5WA907007AC
Volkswagen Golf Mk8 Air Conditioning A/C Control Unit Module 5WA907007AB
Promo price
€113.95
€68.37
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9664016980
Citroen C4 Starter Motor Diesel Engine HDI Actuator Unit 9664016980
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6907519-1
BMW 7 SERIES E65 E66 E67 Battery cable plus pole 6907519
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7248172
BMW 5 Series F10 F11 Drive Window Lifter Motor Front Rear Right O/S 7248172
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 8V4971693F
Audi A3 8V Rear Left Right N/O/S Door Card Wiring Loom Harness 8V4971693
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 8605458
Wiring BMW X1 E84 F11 N20 Engine Sensor System Module Wiring Harness 8605458
Promo price
€108.95
€92.61
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A9065454701
Mercedes W906 Fuse Box Relay Control Unit Electric Module A9065454701
€37.95
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9648588880
Peugeot 206 2.0HDI 90HP DW10TD Engine Control Unit ECU 9664843780 Manual
Promo price
€32.95
€28.01
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A1718300272
Mercedes A B ML Class W166 W169 W245 Interior Temperature Sensor A1718300272
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. A2741501802
Mercedes W213 Engine Wiring Harness Cable Loom A2741501802
Promo price
€180.95
€108.57
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9316655
Seat Wiring BMW X3 F25 X4 F26 Driver's Side Loom Cable 9316654
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7856817
BMW F90 M5 F91 M8 Battery Cable Wire Lead Positive Alternator Starter B+ 7856817
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A1635409008
Mercedes-Benz M ML W163 Radio Aerial Antenna Amplifier Wiring Loom A1635409008
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 8W0971687BR
Audi A4 B9 Rear Right O/S Door Wiring Loom Harness 8W0971687BR
€56.95
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2124407952
Mercedes W212 W218 Battery Cable Negative Lead Terminal Harness A2124407952
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 141951253B
Audi VW Volkswagen Seat Relay Unit Module 4 Pins 141951253B
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 237103888R
Renault Trafic 3 R9M 1.6 DCI Engine Control Unit Module ECU 237103888R Manual
Promo price
€113.95
€68.37
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 8T2035186P
Audi A4 B8 Radio Media Player Audio CD Head Unit Player Concert 8T2035186P
€42.95
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 8Y0035465A
Audi Q2 GA Harman Speaker Amplifier Booster Sound System 8Y0035465A
Promo price
€146.95
€124.91
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 8K0937517B
Audi RS4 B8 Positive Battery Distribution Terminal Junction Relay Box 8K0937517B
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. A9075402087
Mercedes W907 Starter Wiring Battery Alternator Cable Harness Loom A9075401305
Promo price
€61.95
€37.17
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 7853357
Engine Wiring BMW F87 M2 N55 Petrol Loom Module 1 Harness Cable 7853357
Promo price
€170.95
€145.31
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7543297
BMW 5 6 Series E60 E61 E63 E64 N52 Cable Alternator Starter Base B
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 8380409
BMW X5 E53 Fuse Distribution Box Relay Board 6907395 8380409 6909721
€23.95
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9116542
BMW E39 X5 E53 X3 E83 PDC Parking Distance Control Unit Active Module 9116542
Promo price
€32.95
€28.01
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6945145
BMW E60 E61 E63 Air Control Module Passenger Side Door 6945145
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2123300135
Mercedes W212 Front Axle Suspension Wishbone Ball Joint Mount A2123300135
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6958526-1
BMW 5 X5 X6 Series 1 E60 E61 E70 E71 F10 F11 Seat Adjustment Switch Right O/S
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A0009822923-1
Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Grey SET X2 A0009822923
€23.95
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2118704026
Mercedes W211 Door Module Rear Left N/S Control Unit ECU A2118704026
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A1769980001
Door Wiring Plug Mercedes W176 W246 Cable Lead Connector A1769980001
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 6867169
Air Module BMW F20 F23 F30 F32 F36 Domain Control Module ICM Unit 6867169
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 8611289
Mini Cooper S R56 JCW Coolant Thermostat Adapter Wiring Cable 8611289
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9317866
BMW F30 330e Hybrid Battery Accumulator Bracket Holder Mount 9317866
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 8506442
BMW E81 E82 E87 LCI E88 123d Petrol N47S 204HP ECU Engine DDE 8506442 Manual
Promo price
€165.95
€141.06
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7616199
BMW Z4 E82 E88 E89 Battery Lead Cable Negative IBS Wire 7616199
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
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 .