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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Mercedes W221 Air Suspension ABC Control Unit Module A2219009603
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Battery Wiring Mercedes ML W166 Battery Negative Terminal Cable Wire A1665420518
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Audi A4 B9 Front Door Control Module Unit Driver's Side 8W0959593E
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Mercedes Vito Viano W639 Side Sliding Door Control Unit Module ECU A6399000300
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Audi A4 B9 8W TDI Diesel Adblue Dosing Module Control Unit 4M0907355E
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Ford Transit Custom 2.2 TDCi Diesel Starter Motor WaiGlobal 12V 33243N
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Anti Theft Module BMW X3 X5 E39 E46 E53 E83 Control Unit EWS IV 6988104
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Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069005504
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Mercedes W204 COMAND Navigation CD Player Radio Sat Nav Head Unit A2049003609
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BMW E87 ECU Body Control Module Junction Box PL2RR H2 9247472
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BMW Mini Clubman R55 Cable Wiring Loom Splitdoor Door Rear Right O/S 9198760
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BMW F10 F11 550i F12 F13 650i N63 408HP ECU Kit DDE 8610680 Key CAS4 Automatic
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Audi Q7 4L Bluetooth Module Multimedia Control Unit ECU 4E0035729A
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Mini Cooper R50 R52 1.6 W10 116HP Engine Control ECU Kit DME 7557395 Automatic
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Mercedes C207 Parking Sensor Wiring Loom Cable Harness Front PDC A2074400208
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BMW F20 F21 F30 F31 F32 Body Control Unit Module REM V2 9329701
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BMW 1 Series E81 E87 LCI N43 116i 2.0 Petrol ECU Kit 7595179 DME CAS3 Key
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Mercedes ML W164 SLK R171 W211 C219 CD Changer 6 Disc Player Unit A2118705390
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Mini Cooper R56 Footwell Light Module ECU LOW EKS Lear PL3 FRM II 3455702
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Ford Galaxy Mk3 Door Module Front Right O/S Control Unit ECU 6G9T-14B533-BL
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BMW E46 E64 Driver Side Seat Wiring Loom Electric Harness 7002532
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BMW E81 E87 E90 E91 LCI Combox Telematics Module 9248179
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Air Module BMW E60 E63 Control Unit Centre Sensor ECU 6952994
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BMW 3 Series E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS 6970685
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BMW X5 E70 CAS3 Control Unit Key Reading Module 6943838
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BMW E88 E90 E92 Switch Cluster Steering Column Indicator Wiper Stalk
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BMW E87 LCI E90 N43 118i 318i ECU Control Unit Kit DME 7595179 CAS3 + Key
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Seat Module Mercedes W204 W212 Control Unit Front Left Right N/O/S A2129005300
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Starter Motor AUDI Q7 4L VW Touareg MK2 3.0 TDI Diesel Starter 059911024K
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BMW F20 F21 F30 LCI 118d 318d B47 DDE Engine Control Unit ECU 8589145 Automatic
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Mercedes SLK R171 Fuse Box Rear SAM Relay Control Unit Module A1715451901
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Audi A4 B7 1.8T BZB 163HP Engine Control Unit Module ECU Set 8E0909518AQ
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BMW X5 E61 E65 E70 E90 Telematics ECU Control Unit GSM 6983009
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Mercedes SLK R171 Roadster Soft Top Folding Roof Control Module A1718204926
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Mercedes-Benz A W169 Front Driver's Side Door Wiring Loom Harness A1695408033
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5X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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BMW 5 Series E60 E61 Centre Console DTC PDC Switch Center Cluster 9134025
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Audi TT 8N 1.8T BAM 224HP Quattro Engine Control Unit ECU 8N0906018CB Manual
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BMW 5 6 E60 E61 E63 E64 M-ASK M-Audio System Controller CD Player 6950814
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Rear Bumper Antenna BMW E93 E93N LCI 2 Aerial Telephone 6970701
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Peugeot 207 Partner 1.6 HDI Alternator Generator Support Bracket 9684613880
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BMW E81 E87 LCI E90 120i 320i Petrol N43 170HP Engine ECU DME 7579142 Manual
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Mini F55 F56 F57 Integrated Supply Module Z11 Control Unit Module 7936364
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BMW E60 E61 Air Module ECU Control Unit Gateway Module 6943085
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BMW X1 E84 20dX N47 177HP Engine Control ECU Kit DDE 8512498 Automatic
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VW Golf VII Skoda Octavia Fabia III Front Windscreen Rain Sensor 5Q0955547A
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Citroen Berlingo Module Control Unit Brown 12V 20A 4 Pins 8200263342
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BMW 1 3 Series E82 E90 E92 Switch Cluster Cruise Control Stalk Unit 6965263
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Audi A4 B8 A5 8T 2.0 TDI CAHA 170HP Diesel Engine Control ECU 03L906022NP Manual
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Mercedes W203 C180 Kompressor M271.946 Engine Control Unit ECU A2719000600
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Mercedes W204 S204 Airbag Module Air Bag SRS Control Unit ECU A2049013502
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Door Module Mercedes CL203 W203 Front Left N/S Control Unit A2038201385
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Volkswagen VW Golf VI Passat B6 Tiguan Starter Motor Diesel Engine 02M911024A
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BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6952986
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Fuse Box Mini R55 R56 R58 1 Electrical System Distribution 9213372
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BMW E88 Cabrio Footwell Light Module Control Unit ECU PL2 FRM3R 9251488
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801
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BMW 5 7 Series E60 E65 E66 Sunroof Sliding Roof Window Drive Unit Motor
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Ford Fiesta Mk7 Radio Stereo CD Player Display Screen F1BT-18B955-DC
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BMW F30 LCI 330e B48X Battery Lead Negative IBS Wire Earth Cable 6832699
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Onboard Display BMW E60 E63 E64 E90 Dashboard Dash Monitor Screen 8.8" 9141809
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VW Volkswagen Sharan 7N Driver's Side Door ECU Module Control Unit 7N0959793F
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BMW 1 3 Series E81 E87 E88 E90 E91 LCI Radio Business CD Player 9227500
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Part no. A2115407545
Mercedes W211 Central Gateway Control Unit Module Relay ECU A2115407545
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Seat Ateca FR 2.0 TDI Engine Alternator Generator Valeo 14V 140A 04L903021D
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BMW E65 E66 Control unit power ECU module 6957026
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Mercedes W203 C200 Kompressor M271.940 163HP Engine ECU A2711534691 Automatic
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BMW E93 LCI Footwell Light Control Unit Module Lear FRM3R PL2 9230450
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BMW F20 F21 F30 F31 Relay Cover Electric Fan Relay Cap 9353066
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Bi-Xenon Headlight BMW F07 F10 F11 Control Unit Module 7304593
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Mini Cooper R55 R56 R57 N12 1.6 120HP ECU Kit DME 7589971 CAS3 Key Automatic
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BMW F10 M5 F12 M6 Ignition Engine Wiring Harness Ignition Module Cyl.5-8 7843326
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Mercedes W124 M103 Bracket Alternator Mount Holder Support A1031550435
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Audi Q3 8U 2.0 TDI CUWA Fuel Pump Relay Control Unit Module ECU 5Q0906121M
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Audi A4 S4 B6 A7 4B Crash Impact Sensor 8E0959651
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Audi A5 8T 2.0 TDI CAHA 170HP Engine Control Module ECU 03L906022RM Manual
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Audi A4 B7 2.7 TDI BPP Diesel Engine Alternator Generator 059903023BX
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Volkswagen Golf Mk5 1.9 TDI 105HP BXE Engine ECU Kit 03G906021KH Ignition + Key
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Mercedes W202 A208 C208 W208 W210 Fuse Box Relay Control Unit A0005400072
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Mercedes ML W166 Fuse Box Front Relay Control Unit Module A1665402450
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BMW F40 Telematics Control Module Unit TCU 5A872D1
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Mercedes R172 R231 Headlight LED Ballast Control Unit Module A1769009203
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Battery Terminal Cover BMW E39 Mini R50 R52 R53 Trim Base B + Positive 1702103
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Mercedes-Benz CLK-Class C209 W209 Aerial Antenna Amplifier Unit A2098204189
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BMW X3 E83 2.0i N46 ECU Engine Control Unit KIT DME 7561834 EWS Key Manual
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Citroen Relay 35L III Positive Battery Wiring Loom Harness Diesel 1388277080
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Ford Transit Mk8 Starter Motor Engine Actuator Diesel 2.2 TDCi CC1T-11000-AB
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Radio MP3 Player Renault Trafic Vauxhall Vivaro Head Unit Bluetooth 281155093R
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BMW E70 E71 Seat Control Unit Module ECU 9196933
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BMW E60 E90 E91 N52 330i 530i ECU Kit DME CAS2 Key 7553166 Automatic
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Ford Transit MK7 Fuse Box Body Control Module ECU BCM Unit 8C1T-14A073-BF
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Mercedes W221 Bluetooth Module Multimedia Control Unit ECU A2168206526
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Body Control Unit BMW F01 F10 F11 F12 Module ZGW-01 High Central Gateway 9213187
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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 .