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. 1K0909606C
Crash Impact Sensor Volkswagen Golf Audi A4 Q7 A6 C6 Air Module Unit 1K0909606C
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8K0959651
Audi A5 8T A4 B8 Crash Impact Sensor Control Unit 8K0959651
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8J0959651
Audi A3 8P Air Module Crash Impact Sensor 8J0959651
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 4M0035507
Audi A3 8V A4 B9 Telephone Antenna Amplifier Module Unit Booster 4M0035507
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 8K0907063DH
Audi A5 8T Onboard Comfort Supply Control Module Unit ECU 8K0907063DH
€56.95
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 8K0907063N
Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907063N
Promo price
€51.95
€44.16
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 4F0035056B
Audi A6 C6 Head Unit Radio CD Player Control Unit Module 4F0035056B
Promo price
€222.95
€189.51
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 7P0927601
Oil Pump Control Audi Q7 4L Volkswagen Touareg 7P Module Unit ECU 7P0927601
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 7H0907652A
Audi Q7 4L Yaw Rate Speed Sensor Module 7H0907652A
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 1K0915181H
Audi A3 8P Negative Cable Battery Terminal Wiring Loom 1K0915181H
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8E0035411B
Audi A4 B7 Door Speaker Tweeter Front Left Right N/O/S 8E0035411B
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 8K0907063P
Audi A5 8T Body Comfort Control BCM Onboard Supply Module Unit ECU 8K0907063P
Promo price
€47.95
€40.76
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 4G0035223C
Audi A6 C7 Audio Sound System Amplifier Bose 4G0035223C
€85.95
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 4G0907355G
Audi A7 4G8 3.0 TDI CZVA Adblue Control Module Unit ECU 4G0907355G
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-40%
Part no. 4G0035061Q
Audi Q5 8R Multimedia Radio Control Module Head Unit 4G0035061Q
Promo price
€284.95
€170.97
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 4H0907601E
Audi S3 8Y 2.0 TFSI DNFF Petrol Engine Sound Noise Actuator 4H0907601E
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 4F0915519
Volkswagen Polo Touareg Audi A4 A6 A7 A8 Battery Overload Protection 4F0915519
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 7H0907655A
Audi TT 8J Yaw Rotary Rate Sensor Speed Cluster Sensor 7H0907655A
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 5Q0959592E
Audi A3 8V Front Door Module Control Unit Module Right O/S ECU 5Q0959592E
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8P0959655P
Audi A3 8P Air Module Control Unit ECU Module 8P0959655P
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 7P0907652
Yaw Sensor Audi Q7 4L Rotation Rate Unit Module 7P0907652
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 8V0035874B
Audi A3 8V Multimedia Radio Sat Nav CD Player Head Unit 8V0035874B
Promo price
€237.95
€202.26
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 5Q0971250N
Audi A3 8V Volkswagen VW Golf Mk7 Negative Cable Ground Wire Harness 5Q0971250N
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 1K0915333H
Audi A3 8P Battery Box Tray Housing Holder Bracket Cover Mount 1K0915333H
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 4F0959793T
Audi Q7 4L Door Module Front Driver's Side Control Unit ECU 4F0959793T
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 8R0907468N
Audi A5 8T Gateway Control Module Unit ECU 8R0907468N
Promo price
€28.95
€24.61
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 5QA919294B
Audi A3 8V VW Volkswagen Golf VII PDC Park Assist Control Module Unit 5QA919294B
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 8T0907468AD
Audi A4 B8 Gateway Interface Control Unit Module ECU 8T0907468AD
Promo price
€28.95
€24.61
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 420919275-IWH
Audi A4 A5 Q7 Rear Bumper PDC Parking Sensor Ibis White - Y9C 420919275
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 8T0959760C
Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760C
€61.95
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 4G0035061J
Audi A7 4G A4 B8 A6 C7 Q5 8R Sat Navi Stereo Radio Audio Unit Player 4G0035061J
Promo price
€284.95
€242.21
Free delivery: Jul 2 – 3
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: Jul 2 – 3
If paid before 14:00
Part no. 8T0959760B
Audi S5 8T Front Seat Control Module Unit ECU Left Right N/O/S 8T0959760B
€56.95
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8K0959655N
Audi A4 B8 A5 8T Air Module Control Unit ECU 8K0959655N
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 3C0915443A
Audi A3 8P Battery Box Tray Covering Housing Trim Holder Bracket 3C0915443A
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 8T0919603F
Audi A4 B8 AV10NEO Display Screen Radio Multimedia Navigation Sat 8T0919603F
Promo price
€51.95
€44.16
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 8T0919603E-1
Audi A4 B8 Display Screen Sat Nav Navigation Dashboard 8T0919603E
Promo price
€37.95
€32.26
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8K0959655G
Audi A4 B8 Air Module ECU Control Unit Crash Sensor 8K0959655G
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 4G0907397Q
Audi Q3 8U Headlight Module Ballast Relay Control Unit LCM 4G0907397Q
Promo price
€32.95
€28.01
Free delivery: Jul 2 – 3
If paid before 14:00
-40%
Part no. 5Q0959655L
Audi A3 8V Air Module Control Sensor ECU Unit 5Q0959655L
Promo price
€89.95
€53.97
Free delivery: Jul 2 – 3
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: Jul 2 – 3
If paid before 14:00
Part no. 8U0955559B
Audi A5 8T Windscreen Rain Sensor Control Unit 8U0955559B
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 8T0035223AB
Audi A4 B8 8K A5 8T Sound System Audio Amplifier Amp Unit 8T0035223AB
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8X0959792H
Audi Q3 8U Door Module Front Door Left N/S Control Module 8X0959792H
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8V0907159
Audi A3 RS3 8V Impact Sound Actuator Body Control Unit Module ECU 8V0907159
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 4H0907658
Audi A3 8V A5 8T A6 A7 Air Quality Sensor Control Unit 4H09076588
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 4H0906093D
Fuel Pump Audi A8 D4 Q7 4L Diesel Control Unit Module 4H0906093D
€37.95
Free delivery: Jul 2 – 3
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: Jul 2 – 3
If paid before 14:00
-15%
Part no. 059903016JX
Audi A5 8T 3.0 TDI CCWA Diesel Alternator 059903016J
Promo price
€56.95
€48.41
Free delivery: Jul 2 – 3
If paid before 14:00
-40%
Part no. 03L906022FL
Audi A6 C6 3.0 TDI 233HP Diesel Engine Control Unit ECU Kit Module 03L906022FL
Promo price
€189.95
€113.97
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8P3971085
Audi A3 8P Rear Bumper PDC Wiring Parking Sensor Loom Harness 8P3971085
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8K0959792H
Door Control Module Audi S4 A4 B8 A5 8T Front Right O/S Passenger 8K0959792H
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 7L0937576B
Audi Q7 4L Fuse Box Trim Cover Panel Electrical Unit Housing 7L0937576B
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 8K0907063DD
Audi A5 8T Onboard Comfort Supply BCM Control Module Unit ECU 8K0907063DD
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-40%
Part no. 3Q0907530AC
Audi A3 8V Gateway Diagnostics Interface Control Module 3Q0907530AC
Promo price
€47.95
€28.77
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 4F0035110A
Audi A6 C6 CD Player Changer Multimedia Module Control Unit 4F0035110A
€47.95
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 8T1035223A
Audi A5 8T Speaker Amplifier AMP Bang & Olufsen 8T1035223A
€85.95
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 8K0907801N
Audi A5 8T Electric Hand Parking Brake Control Unit ECU 8K0907801N
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 8X0959655B
Audi A1 8X Air Module Control Unit Sensor 8X0959655B
Promo price
€56.95
€48.41
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 1S0919275-DGR
Audi A5 8T Parking Sensor Control Module Daytona Grey Metallic - Z7S 1S0919275
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8P7959655
Audi A3 8P Air Module SRS System Control Sensor ECU Unit 8P7959655
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 8W0907063CG
Audi Q5 FY 2.0 TFSI DAXB Petrol Supply Body Control Module Unit 8W0907063CG
Promo price
€56.95
€48.41
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 8K0971688S
Audi A4 B8 Door Harness Loom Cable Wiring Rear 8K0971688S
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8X0959795C
Audi Q3 8U Door Module Rear Left Door Control Unit 8X0959795C
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 4F0907279D
Audi Q7 4L Comfort Control Module Unit ECU 4F0907279D
€56.95
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 8W0907217C
Audi A4 S4 B9 Front Windscreen Windshield Lane Assist Camera 8W0907217C
Promo price
€66.95
€56.91
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 4L0910441C
Audi Q7 4L Rear Reversing Camera Module View Control Unit ECU 4L0910441C
Promo price
€94.95
€80.71
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 4G0907697J
Audi A7 4G A6 C7 Daytime Running Lights DRL LED Headlight Module Unit 4G0907697J
€61.95
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 3Q0907530G
Audi S3 8V Central Gateway Control Unit Module Relay ECU 3Q0907530G
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 4H0959651A
Audi A1 A6 A7 Impact Crash Control Sensor Module ECU 4H0959651A
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8K0907637C
Yaw Sensor Audi A4 B8 A5 8T ESP Rotation Rate Unit Module 8K0907637C
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8K0959795A
Audi A4 B8 Rear Door Module Control Unit ECU Left N/S 8K0959795A
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8K0959663F
Audi A6 C7 Voltage Converter Stabilizer Control Module Unit ECU 8K0959663F
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 7L0864643B
Battery Cover Audi Q7 4L VW Touareg 7P Porsche Cayenne 9PA Top Cap 7L0864643B
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 4H0907658B
Audi A3 8V A5 A6 A7 Air Quality Sensor Unit 4H0907658B
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8K0937517A
Audi A4 B8 A5 8T Battery Postive Terminal Distribution Power Board 8K0937517A
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8K0959792J
Audi A4 B8 Door Module Front Left N/S Control Unit Module ECU 8K0959792J
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 8P0959655J
Audi A3 E 104 T Air Module ECU Sensor Control Unit 8P0959655J
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 5Q0959651
Audi A3 8V Front Impact Sensor Crash Detection Module Unit 5Q0959651
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 8K0907063C
Audi S5 8T Body Comfort Control BCM Supply Module Unit ECU 8K0907063C
€28.95
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 03L911021C
Audi A4 B8 2.0 TDI CAGA Diesel Engine Starter Motor Bosch Unit 03L911021C
Promo price
€47.95
€40.76
Free delivery: Jul 2 – 3
If paid before 14:00
-40%
Part no. 4E0910563C
Audi S8 D3 Digital Radio DAB Tuner Receiver Module Kenwood 4E0035583C
Promo price
€42.95
€25.77
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 4F0907468M
Audi A6 C6 Diagnostic Interface Gateway Module ECU Control Unit 4F0907468M
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8P3907357B
Audi S3 8P Xenon Headlight Range Control Module Unit ECU 8P3907357B
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 8R0919604A-1
Audi A5 8T Multimedia Radio Sat Nav Screen Display Head Unit 8R0919604A
Promo price
€37.95
€32.26
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 83A919605C
Audi RSQ3 F3 Onboard MMI Multimedia Sat Nav Display Touch Screen 83A919605C
€379.95
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 06M907309D
Audi A4 S4 B9 3.0 TFSI 355HP CWGD Quattro Engine Control Unit ECU 06M907309D
Promo price
€265.95
€226.06
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 5QA919294C
Audi Seat Skoda Volkswagen PDC Parking Sensor Control Unit Module 5QA919294J
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 5Q0915181H
Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8E0951253
Fuel Pump Module Audi A4 B7 A6 C6 Q7 4L Sender Control Relay Unit ECU 8E0951253
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8K0959793D
Audi A4 B8 A5 S5 8T Door Module Control Unit Front Left N/S 8K0959793D
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 06L971627K
Audi TT FY 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06L971627K
€23.95
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 038907281B
Audi A6 C6 2.0 TDI Glow Plug Relay Unit Control Module 038907281B
Promo price
€28.95
€24.61
Free delivery: Jul 2 – 3
If paid before 14:00
-40%
Part no. 8K0907401-1
Audi A5 8T 3.0TDI CAPA Quattro 240HP Engine ECU Kit Ignition 8K0907401 + Key
Promo price
€227.95
€136.77
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 059971627D
Audi A6 C7 High Pressure Pump Fuel Line Electrical Wiring Harness 059971627D
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 5Q0907357
Audi A3 8V Headlight Head Light Lamp Range Control Unit Module ECU 5Q0907357
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
If paid before 14:00
-15%
Part no. 06H903016L
Audi A5 8T Engine Alternator Generator 14V 140A Bosch 2.0 TFSI 06H903016L
Promo price
€37.95
€32.26
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 8J0971035E
Audi TT 8J Driver's Side Door Wiring Loom Harness Electrical Cable 8J0971035E
€56.95
Free delivery: Jul 2 – 3
If paid before 14:00
-5%
Part no. 8K0951253-1
Audi VW Volkswagen Seat Relay 643 Unit Module 4 Pins Set X2 8K0951253
Promo price
€23.95
€22.75
Free delivery: Jul 2 – 3
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 .