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. A2118703385
Mercedes W211 Door Module Rear Left N/S Control Unit ECU A2118703385
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5Q0919275B-BLK
Audi Q2 GA Front Parking Sensor Assist Control Module Black 5Q0919275B
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A0038201926
Mercedes W221 Door Crash Impact Sensor Rear Left Right N/O/S A0038201926
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1779001304
Door Module Mercedes C118 W177 W247 Front Left N/S Control Unit A1779001304
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4F0051510K
Audi Cable Adapter iPod Connection 4F0051510K
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 03L906022JM-1
Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Kit 03L906022JM
Promo price
€146.95
€88.17
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 4M0971104CB
Audi Q7 4M Rear Bumper PDC Parking Sensor Wiring Harness Loom 4M0971104CB
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. F1BT18C815HK
Ford Transit Connect Mk2 II Radio Stereo CD Player Head Unit F1BT18C815HK
Promo price
€66.95
€56.91
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A1695401105
Mercedes-Benz A-Class W169 Heater Cable Harness Wiring Petrol A1695401105
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 8605144
BMW F20 F21 LCI F23 F30 F32 F33 Engine Wiring Loom Harness Cable 8605144
€56.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2125400080
Mercedes W212 Fuse Box Housing Relay Unit Module A2125400080
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. lhd-A2215403310
Mercedes W221 Battery Electrical Ground Line Wire Earth Cable A2215403310
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8605456
Engine Wiring BMW F21 F30 LCI F36 N20 Loom Module Harness Cable 8605456
Promo price
€42.95
€36.51
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A6399003701
Mercedes W639 Tire Tyre Pressure Control Module Unit A6399003701
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9297282-1
BMW E63 E64 Battery Power Cable Lead Positive Underfloor Red 9297282
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7804127
BMW E60 E61 LCI 520d Cable Alternator Starter Base B 7804127
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6985748
BMW 5 Series E60 E61 Centre Console Switch Centre DTC PDC 6985748
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6963651
Alarm Module BMW E81 E84 E87 E90 Ultra Sonic System Sensor 6963651
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 9149835
BMW X5 E70 Front Seat Control Unit Module Driver's Side 9149835
€56.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A0009009639
Mercedes EQA350 H243 4matic DC Current Charge Connection Module OBL + BR293
Promo price
€1,044.95
€626.97
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8693361
BMW F87 M2 Engine Control ECU Kit DME 8693361 N55 370HP Key Dual Clutch
Promo price
€949.95
€569.97
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8P0035535
Audi A4 B7 Amplifier Bracket Aerial Antenna Module Mount Holder 8P0035535
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2469009112
Control Unit Mercedes W176 W246 Body Control Module BCM ECU A2469009112
Promo price
€44.95
€26.97
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8570442
Engine Wiring BMW F25 F26 2.0dX B47 Loom Module Harness Cable Automatic 8570442
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2189002002
Mercedes X218 CLS350 Automatic Trunk Lid Clossing Control Module A2189002002
Promo price
€85.95
€51.57
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 9277812
BMW 2 Series F23 Convertible Rear Trunk Tailgate Antenna Aerial DAB 9277812
Promo price
€67.95
€40.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 4H0035670R
Audi A8L 4H Multimedia Radio Sat Nav CD Player SD SIM Head Unit 4H0035670R
Promo price
€455.95
€273.57
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7525434
Mini R52 R53 W11 Battery Cable Wire Harness Starter Base B 7525434
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 80A962243
Audi Q7 4M Rear Hatch Boot Lid Tailgate Opening Control Module Unit 80A962243
Promo price
€70.95
€42.57
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2533402600
Mercedes X253 Hybrid GLC Battery Electrical Wiring Harness A2533402600
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A0003427200
Mercedes EQA350 H243 4matic Electric Voltage Converter Module A0003427200
Promo price
€408.95
€245.37
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9390501
BMW 3 4 Series F31 F32 F80 M3 F82 M4 LCI USB Charger Adapter Socket 9390501
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2059004321
Mercedes W205 X253 Front Right O/S Door Control Unit Module A2059004321
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4F0907357F
Audi A6 C6 Headlight Head Light Lamp Range Control Unit Module ECU 4F0907357F
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 5A923C4
BMW F40 G20 G21 G30 G31 X3 G01 HiFi Audio Sound Amplifier RAM Module 5A923C4
Promo price
€189.95
€161.46
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5N0035552K
VW Tiguan 5N Antenna Amplifier Module Control Right O/S Unit 5N0035552K
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 8803368
Display Screen BMW F45 F46 Central Information Navigation Monitor 6,5" 8803368
€161.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2059004021
Mercedes W205 GLC X253 Door Module Control Unit Front Left N/S A2059004021
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 03L906022NP-1
Audi A4 B8 2.0 TDI Diesel CAHA 170HP Engine ECU Kit Ignition + Key 03L906022MK
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9225831
BMW F07 Left N/S Central Bass Loud Speaker Stereo System Unit 9164581
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7559811
Earth Ground Cable BMW E60 E61 E63 N62N 540i 550i 650i Battery Starter Wiring
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8W0906093D
Audi A4 B9 Fuel Pump Control Unit Module ECU 8W0906093D
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2469009512
Multimedia Switch Mercedes X156 C117 W176 CD Player Radio Head Unit A2469009512
Promo price
€146.95
€88.17
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 7805808
Cooling Water Pump BMW E46 E60 E61 E87 E90 E91 Mechanical Coolant 7805808
€23.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 3403208
BMW X3 Series E83 Ultrasonic Alarm System Module Control Unit 3403208
Promo price
€33.95
€28.86
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2124400613
Wiring Harness Mercedes W212 Dashboard Dash Wiring Cable A2124400613
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1668201089
Mercedes W176 Radio Aerial Antenna Amplifier Booster Unit Module A1668201089
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A0005406904
Mercedes X253 Ground Line Battery Earth Cable Wire A0005406904
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A2129014606-1
Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
€80.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 373004A310
Hyundai H-1 2.5 CRDI Alternator Generator 373004A310
€37.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7L0909606D
Volkswagen Touareg 7L Front Impact Crash Sensor Right Left N/O/S 7L0909606D
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6974245
BMW MINI Cooper Clubman R55 R55N LCi Retaining Bracket Safety Belt Rear Left N/S
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9284421
BMW F10 F11 Gateway Module ECU Control Unit LEAR ZGW-02 Mid 9284421
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8518269-6
BMW E90 E91 LCI N47N 320d 184HP ECU KIT DDE CAS 3 Key 8518269 Manual
Promo price
€161.95
€97.17
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 5WA962133F
Audi Volkswagen Seat Keyless Entry Module Aerial Antenna 5WA962133F
€23.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8J0971237A
Audi TT 8J Starter Motor Negative Battery Wiring Harness Cable 8J0971237A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A6397600104
Bowden Cable Mercedes W639 Vito Door Handle Catch Top Rear Left Wire A6397600104
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1489995
Mini Cooper R50 R52 R53 Starter Motor W10 1.6 Petrol Engine 1489995
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8T8971845
Audi A5 8T Fuse Box Relay Control Unit Module 8T8971845
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7515197-1
Mini Cooper One R50 W10 Battery Cable Wiring Plus Pole 7515197
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2389058501
Antenna Mercedes A205 Convertible Telephone Antenna Module A2389058501
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 4E0910336MX
Audi A6 C6 Bluetooth Multimedia Interface Control Module Unit ECU 4E0910336MX
Promo price
€75.95
€45.57
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9118468
BMW X5 X6 Series E70 E71 Seat Backrest Adjustment Adapter Lead Cable 9118468
Promo price
€27.95
€26.55
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 9348935
BMW X1 F45 F48 Mini F55 F56 F60 Air Module Control Unit Module ECU 9348935
Promo price
€151.95
€91.17
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8W0959595M
Audi A4 B9 A5 F5 Door Module Rear Right Left N/O/S Control Unit 8W0959595M
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8370933
BMW 3 5 6 Series E60 E61 E63 E90 Support Bracket Navigation Computer 8370933
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 4S4112A650BC
Ford Transit Connect 1.8 Diesel Engine Control ECU Module Manual 4S4112A650BC
Promo price
€51.95
€31.17
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A1245401850
Mercedes W124 M103.940 Engine Fuse Box Module Unit A1245401850
Promo price
€75.95
€45.57
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 9208452
Wiring BMW F07 Front Bumper PDC Wiring Park Assist Sensor Harness 9208452
Promo price
€70.95
€42.57
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2469003014
Mercedes W176 W231 W246 Electric Parking Brake Control Unit Module A2469003014
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 420919275-BLM
Audi A5 8T Rear Bumper PDC Parking Distance Sensor Black Magic Pearl - C9Z
€23.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 8507981
BMW F07 GT F10 F11 Engine Wiring Loom Harness Cables M57Z Diesel 8507981
€184.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A6519000601-1
Mercedes W906 313 CDI 651.955 129HP Diesel Engine ECU Key Lock Kit A6519000601
€284.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9866980
BMW F20 Body Control Unit Module REM Fuse Box 9866980
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6G9T-14B192-EA
Ford Fiesta Transit Relay 4-Pin Grey FoMoCo Unit 6G9T-14B192-EA
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4F0907280A
Audi A6 C6 On Board Onboard Supply Module Control Unit ECU 4F0907280A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 7391043
BMW F10 X1 F48 Mini F54 Rear Tailgate Smart Opener Bottom Wire Sensor 7391043
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6962783
Mini Cooper One R50 Cable Harness Wiring Loom Door Front Left N/S 6962783
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2389000401
Mercedes C238 E53 Coupe Window Lifter Comfort Module Unit Rear A2389000401
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1J0927841
Audi Volkswagen Seat Skoda ESP Relay Unit Grey 444 1J0927841
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8P0035613
Audi A3 8P Bluetooth Module Multimedia Control Unit Cover Unit 8P0035613
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 0165459232
Mercedes Sprinter W901 Central Lock Locking Control Unit Module A0165459232
Promo price
€47.95
€40.76
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 04L907309AB
Audi Q3 8U 2.0 TDI DFUA 184HP Quattro Engine Control ECU 04L907309AB Automatic
€66.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8573779-1
BMW F30 330dX 258HP N57N Control Unit Module ECU DDE 8573779 Key FEM Automatic
Promo price
€308.95
€185.37
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7273667
BMW F30 F31 F32 Rear Tailgate Smart Opener Lower Antenna 7273667
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8809737
PDC Wiring BMW X4M F98 G02 Rear Bumper Parking Assistance Sensor Harness 8809737
Promo price
€89.95
€53.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1729003106
Mercedes SLC R172 Parktronic Parking Sensor Module Unit ECU A1729003106
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9146329-1
BMW X5 E60 E61 E65 E70 Front Left N/S Seat Angle Adjustment Drive 9146329
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9317176
REM Module BMW F20 F30 Rear Electronic Fuse Box Control Unit V2 ECU 9317176
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A2218708285
Mercedes W221 Head Unit DVD High Line Radio Player Navigation A2218708285
€560.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8J0035456
Audi S5 8T Antenna Amplifier Aerial Control Module Unit ECU 8J0035456
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A6429005601
Mercedes C207 Glow Plug Relay Unit Control Module A6429005601
€56.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8586569
BMW F20 F21 F30 F31 LCI Gearbox Transmission Harness Wiring Loom Cable 8586569
Promo price
€89.95
€53.97
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 8691838-1
Mini F54 F55 F57 B48 136HP Petrol Engine Control ECU Kit DME 8674258 Manual
€284.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 8474730
BMW F20 F21 F30 F31 LCI 120d 320d Diesel B47 190HP ECU DDE 8474730 Automatic
€341.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 7273666
BMW F30 F31 F32 Rear Tailgate Smart Opener Upper Antenna 7273666
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 39113-2A511
Kia Ceed I 1.6 CRDI 115HP D4FB Diesel Engine Control ECU 39113-2A511 Manual
€32.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8606306
BMW F10 F11 F30 184 HP Petrol N20 Engine Control Unit ECU DME 8606306 Manual
Promo price
€398.95
€239.37
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A0004461160
Mercedes Sprinter W906 FleetBoard Onboard Time Recorder Control Unit A0004461160
Promo price
€132.95
€79.77
Free delivery - Tue, Oct 14
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 .