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.
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In Stock
Price

-5%
Part no. 8T0959795N
Audi A4 B8 Rear Door Control Module Unit Left Right N/O/S 8T0959795N
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4G8959795J
Audi A7 4G8 Rear Door Module Control Module Unit Left Right N/O/S 4G8959795J
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 1J0971235S
Audi TT 8N HV Battery Negative Earth Terminal Harness Wiring Cable 1J0971235S
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 06L971627A
Audi S1 8X S3 8V VW Golf R Mk7 2.0 TFSI Fuel Injectors Wiring Harness 06L971627A
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 8Y0035465
Audi A3 8Y A4 B9 Q5 FY Harman Speaker Amplifier Booster Sound System 8Y0035465
Promo price
€47.95
€40.76
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8T0959795F
Audi A5 8F Window Lifter Module Control Unit Rear Left Right N/O/S 8T0959795F
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4M0907247
Audi A4 B9 A5 F5 Keyless Entry Amplifier Control Box Module Antenna 4M0907247
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€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 4H0907401M
Audi A8 4H 3.0 TDI CTBA Quattro 258HP Engine Control ECU 4H0907401M
Promo price
€446.95
€379.91
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8W0907063CF
Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W0907063CF
€80.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 5Q0915181E
Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181E
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8U0907468AC
Audi A1 8X Q3 8U Central Gateway Control Unit Module Relay ECU 8U0907468AC
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 5LA907357H
Audi A6 C6 Front Lamp Headlight Range Control Module Unit ECU 5LA907357H
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 05L907309
Audi A4 B9 A5 F5 30 TDI DTNB 136HP Engine Control Unit ECU 05L907309 Automatic
€284.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4H0881073B
Audi A8L 4H Front Seat Air Pump Control Module Unit 4H0881073B
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 5Q0915181D
Audi A3 S3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181D
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4L0971767
Audi Q7 4L Washer Bottle Reservoir Wiring Loom Harness 4L0971767
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8K0971104C
Audi A4 B8 Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104C
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 3Q0941329
Volkswagen Skoda Seat Audi Diesel Engine Adblue Module Control Unit 3Q0941329
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4H0959795E
Audi A8 4H Rear Door Module Control Unit Left Right N/O/S 4H0959795E
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4F0959795M
Audi A6 C6 Rear Door Left Right N/O/S Module Unit Control ECU 4F0959795M
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8K0915181H
Audi A1 8X Negative Minus Battery Terminal Cable 1.4 TFSI CAXA Petrol 8K0915181H
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8Y0971365N
Audi A3 8Y Seat Belt Warning System Wiring Harness Cable Loom System 8Y0971365N
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8X0971693
Audi A1 8X Door Wiring Harness Loom Rear Left Right N/O/S Cabling 8X0971693
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8Y0035042C
Audi S3 8Y Body Control Comfort Module ECU Unit Bluetooth 8Y0035042C
€1,139.95
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 4H0959107AC
Audi A8 4D Tailgate Lift Boot Lid Control Unit Module Trunk 4H0959107AC
Promo price
€42.95
€36.51
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8E0035456C
Audi A4 B7 Telephone Aerial Antenna Signal Amplifier Module 8E0035456C
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 04E907309AC-1
Audi A1 8X 1.4 TFSI CZCA 125HP Engine ECU Kit BCM Lock + Key 04E907309AC Manual
€161.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4H0951223
Audi A6 C7 Single Horn Alarm Siren High Tone Control Unit Module 4H0951223
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 8R0035223F
Audi A4 B8 A5 8T Stereo Radio Sound System Speaker Amp Amplifier 8R0035223F
Promo price
€28.95
€24.61
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4G0907401F-1
Audi A7 4G 3.0 TDI CDUC Quattro Engine ECU Kit BCM + Ignition + Key 04L907445F
€398.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4L0919614B
Audi Q7 4L Navigation Multimedia Control Panel Knob Unit 4L0919614B
€550.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8J0971085D
Audi TT 8J Parking Sensor Wiring Harness Cable PDC Rear Bumper 8J0971085D
€28.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8W0907064GB
Audi A4 B9 A5 F5 Central Body Control Module BCM Unit ECU 8W0907064GB
€32.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8T0959793P
Audi A4 B8 A5 8T Door Control Unit Module Front Driver's Side 8T0959793P
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8W8959107D
Audi A5 F5 Rear Hatch Tailgate Boot Lid Control Module Unit ECU 8W8959107D
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8V0907451
Audi A3 8V Sun Light Solar Sensor Control Detector 8V0907451
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 03L906018JR-1
Audi A4 B8 2.0 TDI CJCB Engine Control Unit Module ECU Kit 03L906018JR Manual
€284.95
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 4G2971228DQ
Audi A6 A7 4G 3.0 TDI Starter Alternator Wiring Harness 4G2971228DQ
Promo price
€28.95
€24.61
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 3C0919275S-CGR
Audi TT 8J PDC Parking Distance Sensor Control Condor Grey - Y7E 3C0919275S
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8K0959792E
Audi A4 B8 A5 8T Front Door Module Control Unit Module ECU Left N/S 8K0959792E
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 06K907425B-15
Audi S3 8V 2.0 TFSI DJHA 310HP Quattro Engine Unit ECU Kit 06K907425B Automatic
€360.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8P0959655J
Audi A3 E 104 T Air Module ECU Sensor Control Unit 8P0959655J
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8T0907468AB
Audi A4 B8 2.0 TDI CAGA Gateway Interface Control Module Unit ECU 8T0907468H
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8T0959793F
Door Module Audi A5 8T A4 B8 Control Front Right O/S Unit 8T0959793F
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 8W0959595N
Audi A4 B9 Door Module Rear Right Left N/O/S Control Unit 8W0959595N
Promo price
€47.95
€40.76
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4H0971663A
Audi A8 D4 Front Door Wiring Harness Loom Cable Left N/S 4H0971663A
€28.95
Free delivery - Tue, Dec 23
If paid before 14:00

-40%
Part no. 8W0906093F
A4 B9 35 TFSI Fuel Pump Sender Control Relay Module Unit ECU 8W0906093F
Promo price
€47.95
€28.77
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 04L907309AB-1
Audi Q3 8U 2.0 TDI DFTA 150HP Quattro Engine ECU Kit Ignition + Key 04L907309AB
€161.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8W0937124A
Audi A4 B9 A5 F5 Q5 FY Fuse Box Control Module Relay Box 8W0937124A
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8V4971029M
Audi A3 S3 8V Front Door Wiring Harness Loom Cable Driver Side 8V4971029M
€28.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4G5971693
Audi A6 C7 4G Rear Door Card Harness Loom Cable Wiring Left N/S 4G5971693
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 06H911021A
Audi A5 8T 2.0 TFSI Petrol Engine Starter Motor Actuator 06H911021A
Product currently unavailable

-5%
Part no. 8J0971226
Audi TT 8J Negative Battery Cable Lead 8J0971226
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 5WB959107B
Audi Q2 GA Rear Boot Trunk Lid Tailgate Control Unit Module ECU 7367747
€70.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 5Q0971228K
Audi A3 8V 1.5 TFSI DPCA Positive Battery Cable Lead Clamp Wire Loom 5Q0971228K
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4F7910401L-1
Audi A6 C6 2.7 TDI CANC Quattro 190HP Engine Control Unit ECU Kit 4F7910401L
€284.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8K1907115M
Audi A4 B8 A5 8T 1.8 TFSI CDHB 160HP Engine Control ECU 8K1907115M Automatic
€156.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8T0959792D
Audi A5 8T Front Door Control Module Unit Left N/S 8T0959792D
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8R0907468C
Audi A5 8T 2.0 TDI Gateway Control Module Unit ECU 8R0907468C
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 5Q0971230ES
Battery Cable Audi A3 8V Starter Alternator Wiring Harness 5Q0971230ES
Promo price
€28.95
€24.61
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8X0035225J
Audi A1 8X Antenna Booster Amplifier Upper Rear Right O/S 8X0035225J
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8X0959792F
Audi A1 8X Front Door Control Module Unit Passenger Side 8X0959792F
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 1S0919275D-MRE
Audi A5 8T PDC Parking Distance Control Sensor 1S0919275D Misano Red Pearl - Z3M
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8W8971687M
Audi A5 F5 Sportback Door Wiring Harness Loom Rear Left N/S 8W8971687M
€47.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 02Z911024Q
Audi A3 8V 2.0 TDI Quattro Starter Motor Engine Diesel Bosch 02Z911024Q
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 5Q0937084DC
Audi A3 RS3 8V Body Control Module BCM Control Unit ECU Power Supply 5Q0937084DC
€47.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 5WA980653C
Audi A3 S3 RS3 8Y Front Camera FAS Lane Assistance Control Unit 5WA980653C
€94.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8K0971765E
Audi A4 B8 AdBlue Tank Wiring Harness Loom Cable 8K0971765E
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 8K0907472
Audi A4 B8 Headlight Headlamp LED Module Control Unit 8K0907472
Promo price
€37.95
€32.26
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 03L906018KP
Audi TT 8J CFGB 2.0 TDI Quattro 170HP Engine ECU Kit 03L906018KP Automatic
Promo price
€146.95
€124.91
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4H0907247
Audi A6 4G Keyless Entry Aerial Antenna Control Unit Module 4H0907247
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 443937105B-1
Volkswagen Audi Skoda Seat Thermal Fuse Relay Amp 15A 12V 443937105B
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4H0971224BA
Audi A8 D4 Alternator Starter Motor Wiring Harness Cable Loom 4H0971224BA
€56.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8K0959793S
Audi A4 B8 Front Door Control Module Unit ECU 8K0959793S
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4H0959655H
Audi A7 4G8 Air Module Control Unit ECU SRS Module Unit 4H0959655H
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4H0907182H
Audi A8 D4 4H Front Seat Backrest Control Module Unit ECU 4H0907182H
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8K0907064HE
Audi A4 B8 Body Control Module BCM Comfort Control Unit 8K0907064DP
€23.95
Free delivery - Tue, Dec 23
If paid before 14:00

-40%
Part no. 8E0057185KX
Audi A4 B7 Radio Media Player Audio CD Head Unit Player Concert 8E0057185KX
Promo price
€113.95
€68.37
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 8K0959793H
Audi A4 B8 A5 8T Door Module Control Front Unit ECU 8K0959793H
Promo price
€32.95
€28.01
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4M0959793H
Audi A5 F5 A4 B9 Front Door Control Module Unit ECU Driver's Side 4M0959793H
€28.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 04L907309K-1
Audi Q3 8U 2.0 TDI Quattro Engine ECU Kit 04L907309K Ignition + Key
€161.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4H0909131
Audi A8L 4H Ignition Keyless Entry Reader Coil Module 4H0909131
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 03L906018JM-1
Audi Q5 8R 2.0 TDI CGLC Quattro 177HP Engine Control ECU Kit 03L906018JM Manual
€237.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8W6971036G
Audi A4 B9 A5 F5 Front Door Wiring Harness Cable Passenger Side 8W6971036D
€42.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8R0907364B
Audi Q5 8R A5 8T A4 B8 Active Suspension Module Damping Control Unit 8R0907364B
€42.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8W6971035AN
Audi A5 F5 Front Door Wiring Harness Cable Driver's Side 8W6971035R
€56.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 1J0906381B
Audi TT 8N Fuse Box Relay Control Unit Module 1J0906381B
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 5Q1937084C
Audi Q2 GA Module BCM Body Control Unit Module ECU 5Q1937084C
€127.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8R0907468L
Audi A5 8F Gateway Control Unit Module ECU 8R0907468L
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4H0035670T
Audi A8 D4 Reader Radio CD System Audio MMI Multimedia Head Unit 4H0035670T
€550.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4M0959792H
Audi A5 F5 Door Module Control Unit ECU Front Passenger Side 4M0959792H
€42.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4G0035056-1
Audi A4 B8 Sat Nav Multimedia DAB Radio Control Head Unit 4G0035056
€237.95
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 4L0910289K
Audi Q7 4L Body Control Comfort Unit Module BCM Unit ECU 4L0907289K
Promo price
€237.95
€202.26
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4G0937517
Audi A6 C7 Fuse Battery Junction Box Fuse Distribution Terminal Centre 4G0937517
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-15%
Part no. 8X0907159C
Audi A1 8X Impact Sound Actuator Control Module 8X0907159C
Promo price
€32.95
€28.01
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8X0959673
Audi A1 8X Windscreen Heating Control Switch 8X0959673
Promo price
€23.95
€22.75
Free delivery - Tue, Dec 23
If paid before 14:00

-40%
Part no. 3WA959595A
Audi A3 RS3 8V Door Control Unit ECU Module Front Driver's Side 3WA959595A
Promo price
€56.95
€34.17
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8K0907551-1
Audi S4 B8 3.0 TFSI 333HP CAKA Quattro Engine ECU Kit 8K0907551 Automatic
€246.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 03F906070GN-2
Audi A1 8X 1.2 TFSI CBZA 86HP Engine Control ECU Kit 03F906070GN Manual
€189.95
Free delivery - Tue, Dec 23
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 .