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

-15%
Part no. 4752820
Positive Cable BMW F20 F21 Under Bonnet Battery Wiring Loom 4752820
Promo price
€32.95
€28.01
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A1693000204-2
Accelerator Sensor Mercedes W169 W245 YAW Rate Control Unit Module A1693000204
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2075405205
Mercedes W207 Door Cable Wiring Loom Front Left Right Door N/O/S A2075405205
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. RHD-8T2035186Q
Audi S3 8V Multimedia MMI Radio Stereo Audio Head Unit CD Player 8T2035186Q
Promo price
€32.95
€28.01
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 8E0959651A
Audi A4 B7 Front Crash Impact Air Module Sensor Unit Module 8E0959651A
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 3449504
Mini Cooper One R55 R56 Electrical System Fuse Distribution Box 3449504
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A2135407744
Mercedes W213 Door Ambient Light Cable Harness Wiring Rear Right O/S A2135407744
Promo price
€47.95
€40.76
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 8604258
Mini Cooper R56 Positive Battery Cable Alternator Lead 8604258
Promo price
€89.95
€53.97
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A1179001702
Mercedes GLA X156 Interior SRS Air Module Seat Belt Tensioner A1179001702
Promo price
€127.95
€76.77
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 6982652
BMW 1 Series E82 E88 Positive Battery Lead Cable Wire 61126982652 6982652
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 8803368
Display Screen BMW F45 F46 Central Information Navigation Monitor 6,5" 8803368
Promo price
€161.95
€97.17
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 8W0959593N
Audi A4 B9 Front Door Module Control Unit ECU Driver's Side 8W0959593N
Promo price
€42.95
€25.77
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 7823651
BMW F10 F11 Engine Wiring Loom Cable Harness Injector Module 520d N47N 7823651
Promo price
€32.95
€28.01
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A6395400044
Mercedes Vito W639 Anti Theft Alarm Switch Loom Cable A6395400044
Promo price
€32.95
€28.01
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 8582279-3
BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8582279 Keys FEM
Promo price
€222.95
€133.77
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0025450901
Mercedes W169 W245 W906 Fuse Holder Electrical Fuse Box Bracket A0025450901
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2781506020
Cable Beam Mercedes W166 W212 W221 Engine Wiring Harness Loom A2781506020
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A2479002307
Mercedes W177 W247 4Matic Transfer Control Unit Module ECU A2479002307
Promo price
€137.95
€82.77
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A0009002740
Camera Module Mercedes C205 W247 GLC X253 W910 Control Unit A0009002740
Promo price
€332.95
€199.77
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 8631833
Mini R55 R56 R57 LCI R60 Automatic Gearbox Basic Control Unit EGS 7356237
Promo price
€37.95
€32.26
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 6933270
BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side 6933270
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A2319014702
Mercedes R231 Air Module Control Unit ECU SRS Module A2319014702
Promo price
€284.95
€242.21
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 7571142
Plus Cable Wiring Mini Cooper R55 R56 R57 Battery Lead Power Positive 7571142
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 5Q0959593F
Volkswagen Golf Mk8 Door Module Front Right O/S ECU Control Unit 5Q0959593F
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. A0051512101
Mercedes W168 W169 W245 Petrol Engine Starter Motor A0051512101
€28.95
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 9X2Q9A361CA
Range Rover L320 Sport Rear Fuel Pump Control Unit Bracket Holder 9X2Q9A361CA
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. 5F4035225B
Seat Leon Mk3 Antenna Amplifier Module FM Right O/S Aerial Booster 5F4035225B
€42.95
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0035420419
Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Black A0035420419
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0015424523
Parktronic Display Mercedes W207 W212 PDC System Parking Sensor A0015424523
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. N000000004325
Mercedes W169 W204 W211 C219 Replacement Fuse Kit Set N000000004325
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2129004414
Door Module Mercedes W204 W212 Rear Right O/S Control Unit Module A2129004414
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 8381963
BMW E39 Petrol M52 523i Body Control Module 8381963
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 4G0907468AB
Audi A6 C7 Gateway Module Control Unit ECU 4G0907468AB
Promo price
€89.95
€53.97
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 03L906018JM-1
Audi Q5 8R 2.0 TDI CGLC Quattro 177HP Engine Control ECU Kit 03L906018JM Manual
Promo price
€237.95
€142.77
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 9296495
BMW F20 F21 F22 F30 F31 F33 F34 Air Module Control Unit ECU 9296495
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 9267419
BMW E90 LCI Body Control Module H1 61359267419 9267419
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A1729051301
Mercedes SLK R172 Roadster Antenna Amplifier Control Module A1729051301
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 6G9210E887EE
Land Rover Freelander 2 Navigation Nav Reader DVD CD Control Unit 6G9210E887EE
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A2048702426
Mercedes W204 Door Module Rear Left N/S Control Unit Module A2048702426
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. 8576341-2
BMW F20 F21 F30 F31 116d 316d 116HP N47N ECU Kit DDE 8576341 + Key + FEM
€222.95
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0015456403
Mercedes Sprinter W906 Fuse Box Relay Cover Box Cap A0015456403
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. 9251722
BMW F20 Front Left Door N/S Wiring Loom Harness Cables 9251715
€23.95
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. 9287441
BMW F21 F22 F23 Wiring Loom Harness Passenger Side 9287441
€23.95
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 9286789
BMW E88 ECU Body Control Module H4 Junction Box PL2RR JBBFE IIIR 9286789
Promo price
€80.95
€48.57
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. A1775401629
Mercedes W177 Rear Bumper PDC Wiring Loom Parking Sensor A1775401629
Promo price
€37.95
€32.26
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 1J0973332A
Audi RS4 B8 Cable Loom Wiring Plug Socket 2 Pins 1J0973332A
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 8506566-2
BMW E90 E91 LCI 320d ed N47N 163HP ECU DDE 8506566 Manual Transmition
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
If paid before 14:00
-5%
Part no. TM450
Trafficmaster TM450 GPS Vehicle Location Tracker Control Unit Module ECU
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 8706502
BMW 1 3 4 Series F20 F21 F30 F31 Radio Remote Control Receiver 434 MHZ 8706502
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 9276036
BMW 5 Series F11 Touring Antenna Aeral Amplifier Diversity 868 MHZ 9276036
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. 6855990
BMW X3 F25 ICM Control Unit Air Bag Module SRS Safety ECU 6855990
€142.95
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A1775402111
Mercedes W177 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1775402111
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 9118111
BMW 1 Series E81 E82 Door Wiring Loom Harness 9118111
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 6807633
Control Unit BMW F01 F07 F10 F11 F25 Air Module ECU Unit Continental 6807633
Promo price
€42.95
€25.77
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 6932452
BMW 5 6 Series E60 E61 E63 E64 Power Distribution Electrical Fuse Box 6932452
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 8C1T14303CA
Ford Transit Mk7 Negative Battery Terminal Cable Wiring 8C1T14303CA
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 8621500
BMW F20 F21 F30 LCI Petrol N13 N20 Cable Alternator Starter Base B+ 8621500
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0005465402
Mercedes C117 W176 W246 Positive Battery Terminal Cover Cap Trim Red A0005465402
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. A2129004500
Mercedes C207 W212 Fuse Box Relay Control Unit SAM Module A2129004500
€165.95
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. 1K0971391ES
VW Golf Mk5 Seat Well Cable Front Left N/S Wiring Loom Harness 1K0971391ES
€23.95
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 9229878
BMW E91 LCI ECU Body Control Module Junction Box H2 9229878
Promo price
€62.95
€53.51
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 8654460
Mini Cooper F54 F55 136HP Petrol B38 Engine Control ECU DME 8654460 Manual
Promo price
€279.95
€167.97
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 6821404
High Voltage Cable BMW F45 Mini F60 Hybrid Plugin Alternator 6821404
Promo price
€332.95
€199.77
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2135452840
Mercedes W213 ECU Bracket Control Unit Module Holder Mount A2135452840
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A2049060105
Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105
Promo price
€62.95
€37.77
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 8E0959655G
Air Module Audi A4 B6 B7 ECU Control Unit Crash Sensor Air 8E0959655G
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 7837273
BMW 1 3 Series E81 E87 E90 E91 PDC Parking Ultrasonic Sensor Le Mans Blau Blue
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 9223689
BMW X1 E84 Display Screen Monitor On-board CID TV Navigation System 8,8" 9223689
Promo price
€332.95
€199.77
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 4F0959795P
Audi A6 C6 Rear Left N/S Door Lock Control Module Unit ECU 4F0959795P
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 9270354
Mini F54 F55 F56 F57 F60 Rear Electric Power Distribution Fuse Box 9270354
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. 03L906022NN
Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Module 03L906022NN
€113.95
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 6915943
BMW 7 X3 Z4 Series E65 E66 E83 E85 E86 Interface Japan Luggage Module 6915943
Promo price
€94.95
€56.97
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. A2034404432
PDC Wiring Mercedes CL203 Front Bumper Parking Sensor Loom Cable A2034404432
Promo price
€66.95
€40.17
Free delivery - Wed, Nov 05
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 - Wed, Nov 05
If paid before 14:00

-15%
Part no. A2139065706
Mercedes W205 W213 Front Engine Compatment Fuse Relay Box Module A2139065706
Promo price
€37.95
€32.26
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 8507899
BMW F31 N47N 320d Engine Wiring Harness Module Diesel 8507899 8507896
Promo price
€66.95
€56.91
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 6882963
Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU ICM Control Unit 6882963
Promo price
€32.95
€28.01
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A0045454140
Mercedes ML W164 W251 Door Wiring Joint Protective Cap Bracket
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 4G0907468F
Audi A6 C7 Central Getaway Control Unit Module ECU 4G0907468B
Promo price
€75.95
€64.56
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. 9366413
FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9366413
€113.95
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. A2129004114
Door Module Mercedes W204 W212 Rear Left N/S Control Unit A2129004114
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 02E911024M
Audi A3 8V 2.0 TFSI DJHA Starter Motor 12V 02E911024M
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 55562863
Opel Insignia A 2.0 CDTI Diesel Alternator Bracket Holder Mount 55562863
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-15%
Part no. 9362395
BMW F20 F30 F31 F34 Electrical Body Control Unit Module REM V2 9362395
Promo price
€42.95
€36.51
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 6C1T14A481CC
Ford Transit Mk7 Fuse Box Body Control Module ECU 6C1T14A481CC
Promo price
€70.95
€42.57
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 7296090
BMW Z4 F30 F31 E89 Headlight Ballast Control Unit Xenon Light 7296090
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 9201989
BMW X3 X5 X6 E60 E61 LCI E70 E71 F01 F02 F25 Rain Light Solar Sensor
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 7789231
BMW X5 E46 E53 E60 E65 Preheater System Lead Cable Starter 7789231
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 9243667
BMW X3 F25 X4 F26 Rear Door Left Right N/O/S Wiring Loom Cables Harness 9243667
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 7579136
BMW Mini Cooper S R56 Automatic Gearbox ECU Control Unit EGS Module 7579136
Promo price
€47.95
€28.77
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 8383185
BMW X5 7 Series E38 E53 Control Unit Illuminated Door Handle 8383185
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 2755704
Genuine BMW Mini Cooper One R55 R56 R57 R60 R61 Fuse Box Empty Housing 2755704
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 240801846R
Renault Trafic III Vauxhall Vivaro B Positive Battery Cable Lead Wire 240801846R
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. 1K0971349BP
Volkswagen Golf Mk6 Alternator Main Cable Wiring Harness Loom 1K0971349BP
€23.95
Free delivery - Wed, Nov 05
If paid before 14:00

Part no. 8S0971365F
Audi TT FV Driver's Seat Cable Seat Belt Warning Wiring Loom Harness 8S0971365F
€23.95
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 4E0907280B
Audi A8 4E S8 D3 Power Supply Control Module Unit ECU 4E0907280B
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 8J0035456A
Antenna Amplifier Audi Q5 8R A6 C6 A5 8T Mobile Phone Module Unit 8J0035456A
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00

-40%
Part no. 4F0035503E
Audi A4 B8 Transmitting Receiving Unit Road Toll System 4F0035503E
Promo price
€94.95
€56.97
Free delivery - Wed, Nov 05
If paid before 14:00

-5%
Part no. 6932399
BMW X5 E53 Cable Loom Plug Socket Connector Wiring Harness 6932399 6932396
Promo price
€23.95
€22.75
Free delivery - Wed, Nov 05
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 .