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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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE CAS 3 Key 7811702 Manual
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Tailgate Lift Module BMW F31 F36 Mini F60 Trunk Control Unit Rear ECU 7481616
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Audi Q7 4L Air Module ECU Sensor Control Unit 4L0910655D
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Display Screen BMW E60 E61 E90 LCI 8.8" Monitor Sat Nav 9193745
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BMW E90 E91 LCI N47N 320d ECU Kit Basic DDE Control Unit 8512047 + CAS3 + Key
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Mercedes Sprinter W907 314 CDI OM651.958 143HP ECU Engine Unit A6519003603
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BMW E60 E63 E64 E90 LCI Dashboard Dash Onboard Display Monitor Screen 8.8" CCC
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BMW 5 Series E60 E61 Radio M-ASK M-Audio System Controller CD Player 6955348
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Audi A4 B7 Cabriolet Roof Motor Wiring Harness Wiring Loom 8H0972387
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Head Unit Mercedes SLK R172 Radio Media Sat Nav Unit Switch Panel A1729000814
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Telematics Module BMW E60 E87 E90 Bluetooth Control Unit 6982056
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Seat Ibiza FR KJ1 Fuse Distribution Box Electrical Control Unit 2Q0937548D
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BMW E39 E46 Mini Cooper R50 EWS3 Control Unit 3 Immobiliser Module ECU 6905666
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BMW 7 Series E65 E66 Cooler Fan Unit Cooling 6932273 0130002845
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Mercedes W221 Front Door Module Right O/S Control Unit ECU A2219007601
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Mercedes CL C216 W221 S500 Air Pneumatic Suspension Control Module A2215407962
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Volvo V70 2.4 D5244T4 Diesel Engine Control Module ECU 30729826A Automatic
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Mercedes ML W164 Remote Control DVD Media Entertainment Display A1648204189
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BMW 1 Series E81 LOW Light control footwell module ECU PL2 FRM II 9197154
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Body Control BMW F22 F23 F30 F32 F33 F36 BCM Module Unit ECU 9868384
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Audi A3 8P Air Module ECU Sensor Control Unit 8P0959655L
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On-Board Screen BMW F45 F46 Central Information Display Monitor 6,5" 9317941
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BMW 6 Z4 Series E64 E89 Left B-pillar Airbag Sensor N/S 6974366
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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU Kit DDE 8512498 CAS3 + Key Manual
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Mercedes CLK W209 Convertible Rain Light Sensor Windscreen Module A2098203026
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Audi A4 B7 Electronic Yaw Rate Sensor Module 4F0907637
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Engine Wiring Harness Mercedes R171 W203 C209 M271 Loom Cable A2711502933
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BMW Mini R50 One 1.6i Petrol Engine Control Unit DME Manual 7520019 7526780
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Audi A5 8T Dynamic Active Steering Module ECU 8K0907144E
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Audi A5 F5 Sat Navi MMI Multimedia Radio SD Reader Head Unit Harman 8W5035035C
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BMW F80 M3 F82 F83 M4 431hp Engine Control ECU Kit DME 8695512 + FEM Module Key
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BMW X5 E70 CCC Navigation System CD Player Sat Nav Head Unit 9191568
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Battery Tray Citroen Relay Fiat Ducato Battery Housing Box Tray 1368035080
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BMW X5 X6 Series E70 E71 Navigation System Car Computer CIC 9222855
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Volkswagen VW Touran Door Harness Loom Cable Wiring Front Left N/S 1T0971557AJ
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Volkswagen LT 35 Door Module Central Locking System Module Unit 2D0959800
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BMW E46 E85 M54 Petrol Alternator Generator Bosch 120A 7519618
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Ford Transit Mk8 VI Body Control Module Fuse Box GK2T-15604-FAF
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BMW 7 Series E65 E66 Antenna Amplifier Diversity Unit Module 6941747
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Hyundai H-1 Safety Module Air Bag SRS Control Unit ECU Module 95910-4H600
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Mercedes GLA X156 Central Display Infotainment Sat Nav Media Screen A1669008222
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Mercedes W205 X253 Distronic Radar Sensor Cruise Control Unit Module A0009005109
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BMW F40 Telematics Control Module Unit TCU 5A872D1
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BMW X3 E83 LCI 2.0d N47 177HP Diesel ECU Kit DDE 7811999 + EWS4 + Key Manual
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Alternator Generator Mercedes Sprinter W906 Engine Diesel 180A 14V A0009068802
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BMW F10 F11 F12 ECU ICM Control Unit Module 6856874
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BMW F20 F21 F22 F30 F31 F32 F36 Front Electronic Module Control Unit FEM 9292656
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BMW 3 5 7 X3 X5 Z4 Series E38 E39 E46 E53 E85 E83 Control Unit EWS III
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Porsche Macan 95B Front Door Control Module Unit Passenger Side 4H0959792S
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BMW E90 LCI Footwell Light Control Module Lear FRM3R PL2 LED 9240532
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BMW X5 E53 Amplifier Hifi Speaker System 65128379376 8379376
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Mercedes ML W166 PDC Parking Distance Control Unit Module Sensor A1669002307
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Mercedes W164 Battery Starter Alternator Wiring Harness Cable OM642 A1645401730
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BMW E46 E53 Side Air Module Control Unit ECU Module 6933238
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Mercedes W202 W210 Engine Cooling Radiator Fan Control Unit Module
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Audi Q2 GA Rear Centre Loudspeaker Subwoofer 81A035382
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Mercedes-Benz W202 C208 Roof Alarm Motion Sensor Cover Trim Grey A2086900028
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BMW Z4 E89 Roadster HiFi Speaker Sound System Amplifier AMP Unit 9118032
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Mercedes C219 Coupe Front Bumper Parking Sensor PDC Wiring Harness A2195404505
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BMW X5 E70 LCI Light Module Footwell Module FRM3R Lear ECU Unit 9249073
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Mercedes ML W164 SLK R171 W211 C219 CD Changer 6 Disc Player Unit A2118705390
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Ford Transit MK7 2.2 TDCi Diesel Engine Wiring Loom Harness Cables 8C1T12B637KE
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Seat Module Mercedes W203 CLK W209 W211 Front Memory Control Unit A2118704726
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Renault Trafic II Vauxhall Vivaro A 1.9 Diesel Engine Starter 7700116260
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Head Unit BMW E90 E91 Radio CD Player Navigation Sat Nav DAB Unit 9273187
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PDC Module BMW E38 Parking Assist Distance Control Module Unit ECU PDC 8372271
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BMW E87 E90 N46 120i 320i 150HP Engine Control ECU DME 7565300 Manual
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Bluetooth Interface Audi TT 8J A3 8P Multimedia Steuergerät ECU 8P0862335K
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Mercedes-Benz Vito Viano W639 Alternator Generator Diesel 200A A0131541002
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BMW MINI Countryman R60 Cooper One Wiring Set Loom Harness PDC Rear Bumper
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BMW F20 F21 F30 F31 LCI Control Unit Box Cover Mudguard Flap Cap 8622032
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Mercedes W221 Audio Sound Speakers Amplifier Control Unit ECU A2219008103
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Mercedes Sprinter W906 OM646 Engine Diesel Alternator Generator A6461540002
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Audi A5 F5 Central Body Control Module BCM Unit ECU 8W0907064GC
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Audi A5 8T Alternator Generator Rack Mount Bracket 04L903141B
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Mercedes W205 X253 Wiring Cable Harness Center Console A2054403008
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BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6976154
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Mini Cooper R55 R56 R57 Harman Kardon HiFi Stereo Audio Speaker Set
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Mini Cooper R55 R56 R57 LCI Radio Boost CD USB Bluetooth Head Unit 3457050
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BMW 1 2 3 Series F20 F21 F22 F30 N47N Diesel Engine Starter Motor 8571905
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BMW F40 F46 Mini F56 F60 Battery Holder Mount Tray Bracket Support Trim 9386604
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BMW F10 F11 520d Diesel N47N 184HP Engine ECU Kit DDE 8513242 CAS4 Key
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Mini Cooper One R50 R53 Temperature Control Actuator Climate 6940719 0132801354
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VW Volkswagen Golf 6 1.6 TDI Diesel Engine Starter Motor 022911024A
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VW Golf 5 Steering Angle Steering Wheel Column Control Module 1K0953549CA
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BMW 5 Series E61 LCI Light Control Module Unit Lear LM II E6X LWR 9180756
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BMW 1 3 Series E81 E87 E91 Switch Cluster Cruise Control Stalk Unit 9123038
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BMW E60 E81 E87 E90 E91 E92 CAS 3 ECU Control Unit Key Reading Module 9147191
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BMW E60 E61 E63 Control Unit Gateway Module ECU 6975686
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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 .