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Electrics car spares

Electric system car spares for Top Car brand

  • High quality Electric system for BMW
  • High quality Electric system for VW
  • High quality Electric system for MERCEDES-BENZ
  • High quality Electric system for FORD
  • High quality Electric system for AUDI
  • High quality Electric system for VAUXHALL
  • PEUGEOT Electrics
  • TOYOTA Electrics
  • NISSAN Electrics
  • RENAULT Electrics
  • CITROËN Electrics
  • HONDA Electrics
  • VOLVO Electrics
  • FIAT Electrics
  • HYUNDAI Electrics
  • MAZDA Electrics
  • SKODA Electrics
  • KIA Electrics
  • SEAT Electrics
  • MITSUBISHI Electrics
  • MINI Electrics
  • LAND ROVER Electrics
  • SUZUKI Electrics
  • JAGUAR Electrics
  • OPEL Electrics
  • ALFA ROMEO Electrics
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Electrics car parts - all important information about operating method, mounting, diagnostics and service life

Car electrical parts are a set of units which store and produce electricity and also consume it to perform various tasks. Most systems in a modern vehicle have devices powered by electricity.

Design of a car electrical system

The key components of car electrics are:

  • Battery – this is an electrochemical device which can receive, accumulate and release a charge. It supplies power to the starter. It also serves as the auxiliary power source for the vehicle mains when the engine isn’t running.
  • Starter motor – this is a direct current motor which converts electrical energy into mechanical. It is used for initial engine cranking. It switches off as soon as the internal combustion engine starts running under its own power.
  • Alternator – this converts the mechanical energy of the rotating crankshaft into electrical. This device powers all electrical consumers when the engine is running and charges the battery as well.
  • Ignition switch – with this, the driver initiates the power supply to the ignition system, starter motor, fuel pump, instrument panel, and other equipment.
  • Wiring – this transfers electricity from one device to another.
  • Relays – these are switching units which open and close the electrical circuits they are connected to.
  • Fuses – these are devices designed to protect various car electrical parts from voltage spikes. When allowable values are exceeded, the fuses blow and open the circuits.
  • Other energy-consuming devices – these include lights, electric window regulators, windscreen wipers, heated seats, various sensors, and other devices powered by electricity.

Maintenance advice

  • Keep your engine compartment clean. Dirt and moisture have a detrimental effect on electrical contacts.
  • You should always make sure that all connectors are secure. Poor contact may melt or burn the connectors.
  • During any car repairs, be sure to disconnect the negative battery terminal. At the same time, if needed, you can remove oxidation and dirt from contacts and terminals.
  • Avoid over-discharging your battery. This may lead to battery cell sulfation.
  • When you install a new fuse, always make sure that it corresponds to the vehicle specifications, or else the whole circuit may get burnt.
  • Don’t crank the engine with the starter for too long. You should take a break after several unsuccessful attempts.
  • Replace the alternator drive belt in due time. Always make sure that it is properly tensioned.

Symptoms of malfunction

Malfunctions in car electrics often result in problems starting the engine. They might be caused by poor contact in the ignition switch or battery terminals, or faulty starter components. In some cases, the engine won’t start at all. Sometimes, the battery doesn’t charge properly during driving or, conversely, gets overcharged. These are symptoms of a failing alternator voltage regulator. Poor spark plug performance, headlight dimming while driving or the audio system switching off on its own indicate a faulty diode bridge. In some cases, the starter won’t stop working even when the engine is running. This symptom indicates a bad starter solenoid or overrunning clutch. If wires or connectors melt due to a bad contact, you may smell burning inside the car.

Causes of malfunction

Many malfunctions of electrics in a vehicle are caused by natural wear and tear of particular assemblies. For example, alternator brushes wear out over time and have to be replaced, as does the drive belt. Sometimes device malfunctions are connected with the misuse or neglect of certain assemblies. For example, constant exposure to freezing cold will deteriorate your battery very quickly. You also shouldn’t overload the starter.

Autodoc.co.uk: only high-quality automotive products

Our online store is the best place to buy components for car electrics. Many parts are available at promotional prices. What’s more, if your order is above a certain amount, you’ll get free shipping.

Replacement of Electric system car parts: Video repair guide

Top 10 of best sellers from the Electric system section

Recommended spare parts from the Electrics section. These are the sales hits. Buy our best sellling items or discover a vast selection of other attractive offers.
-27%
Electric system Bulb, spotlight 66140
Bulb, spotlight 66140
Article number: 66140
£ 44,66

(Price per item)

incl. 20% VAT , excl. delivery costs,
  • Lamp Type: D1S (gas discharge tube)
  • Rated Power [W]: 35
  • Voltage [V]: 85
  • Socket Type: PK32d-2
  • Light Design: Xenon
  • Product line: XENARC ORIGINAL
  • Colour Temperature [K]: 4300
  • OSRAM  Bulb, spotlight
  • Item number  66140
  • Manufacturer's suggested retail price   £ 61,18
  • Our price   £ 44,66
  • Condition  New
Details
-27%
Electrics Bulb, spotlight 64210L
Bulb, spotlight 64210L
Article number: 64210L
£ 4,65

(Price per item)

incl. 20% VAT , excl. delivery costs,
  • Lamp Type: H7
  • Rated Power [W]: 55
  • Voltage [V]: 12
  • Socket Type: PX26d
  • Self-service suited packaging see parts list
  • Light Design: Halogen
  • Quantity: 1
  • Product line: LONGLIFE
  • Colour Temperature [K]: 3200
  • OSRAM  Bulb, spotlight
  • Item number  64210L
  • Manufacturer's suggested retail price   £ 6,37
  • Our price   £ 4,65
  • Condition  New
Details
-27%
Electric system Daytime Running Light Set 2PT 010 458-701
Daytime Running Light Set 2PT 010 458-701
Article number: 2PT 010 458-701
£ 164,05
incl. 20% VAT , free delivery
  • Mounting Type: Fitting
  • Cable Length [mm]: 120
  • Quantity: 2
  • Assy. / disassy. by qualified personnel required!
  • Quantity Unit: Set
  • Diffusing Lens Material: Acrylic
  • Supplementary Article / Info 2: Electromagnetic Compatibility (EMC)
  • Reverse polarity protection: Yes
  • Power Consumption [W]: 6
  • Shape: round
  • Lens Colour: Crystal clear
  • Test Mark: SAE, ECE-R10, E9 1152, ECE-R7, ECE-R87, ECE-R148
  • Fastening Type: Horizontal fastening
  • Protection Type (IP Code): IP6K9K
  • Number of light functions: 1
  • Light Function: with daytime running light (LED)
  • Diameter [mm]: 30
  • Height [mm]: 30
  • Fitting Position: Vehicle Front
  • Voltage [V]: 12, 24
  • Lamp Type: LED
  • Light Design: LED
  • Number of LEDs: 5
  • HELLA  Daytime Running Light Set
  • Item number  2PT 010 458-701
  • Manufacturer's suggested retail price   £ 224,73
  • Our price   £ 164,05
  • Condition  New
Details
-27%
Electrics Window Regulator 30/1983
Window Regulator 30/1983
Article number: 30/1983
£ 54,64
incl. 20% VAT , excl. delivery costs,
  • Fitting Position: Left
  • Operating Mode: Electronic
  • Number of Doors: 2
  • Supplementary Article / Supplementary Info: without electric motor
  • Combi Switch Function: with comfort function
  • Window Regulator: Single Rail Window Lift
  • MIRAGLIO  Window Regulator
  • Item number  30/1983
  • Manufacturer's suggested retail price   £ 74,85
  • Our price   £ 54,64
  • Condition  New
Details
-27%
Electric system Bulb, spotlight 64193
Bulb, spotlight 64193
Article number: 64193
£ 2,98

(Price per item)

incl. 20% VAT , excl. delivery costs,
  • Lamp Type: H4
  • Rated Power [W]: 60/55
  • Voltage [V]: 12
  • Socket Type: P43t
  • Light Design: Halogen
  • Product line: ORIGINAL
  • Colour Temperature [K]: 3200
  • OSRAM  Bulb, spotlight
  • Item number  64193
  • Manufacturer's suggested retail price   £ 4,08
  • Our price   £ 2,98
  • Condition  New
Details
-27%
Electrics Lambda Sensor DOX-0428
Lambda Sensor DOX-0428
Article number: DOX-0428
£ 105,85
incl. 20% VAT , excl. delivery costs,
  • Thread Size: M18x1.5
  • Cable Length [mm]: 300
  • Number of Poles: 4
  • Product line: Direct Fit
  • Quality: OE
  • Weight [g]: 95
  • Manufacturer Restriction: DENSO
  • DENSO  Lambda Sensor
  • Item number  DOX-0428
  • Manufacturer's suggested retail price   £ 145,00
  • Our price   £ 105,85
  • Condition  New
Details
-27%
Electric system Bulb, spotlight 66240
Bulb, spotlight 66240
Article number: 66240
£ 31,59

(Price per item)

incl. 20% VAT , excl. delivery costs,
  • Lamp Type: D2S (gas discharge tube)
  • Rated Power [W]: 35
  • Voltage [V]: 85
  • Socket Type: P32d-2
  • Light Design: Xenon
  • Product line: XENARC ORIGINAL
  • Colour Temperature [K]: 4200
  • OSRAM  Bulb, spotlight
  • Item number  66240
  • Manufacturer's suggested retail price   £ 43,28
  • Our price   £ 31,59
  • Condition  New
Details
-27%
Electrics Bulb, spotlight 66440
Bulb, spotlight 66440
Article number: 66440
£ 39,20

(Price per item)

incl. 20% VAT , excl. delivery costs,
  • Lamp Type: D4S (Gas Discharge Lamp)
  • Rated Power [W]: 35
  • Voltage [V]: 42
  • Socket Type: P32d-5
  • Light Design: Xenon
  • Product line: XENARC ORIGINAL
  • Colour Temperature [K]: 4500
  • OSRAM  Bulb, spotlight
  • Item number  66440
  • Manufacturer's suggested retail price   £ 53,70
  • Our price   £ 39,20
  • Condition  New
Details
-27%
Electric system Pressure converter, turbocharger 7.00968.04.0
Pressure converter, turbocharger 7.00968.04.0
Article number: 7.00968.04.0
£ 48,10
incl. 20% VAT , excl. delivery costs,
  • Valve type: Solenoid Valve
  • Operating Mode: Electric-pneumatic
  • Voltage [V]: 12
  • Technical Information Number: SI 0096
  • PIERBURG  Pressure converter, turbocharger
  • Item number  7.00968.04.0
  • Manufacturer's suggested retail price   £ 65,89
  • Our price   £ 48,10
  • Condition  New
Details
-27%
Electrics Relay 0 332 002 156
Relay 0 332 002 156
Article number: 0 332 002 156
£ 27,65
incl. 20% VAT , excl. delivery costs,
  • Combi Switch Function: without light dimmer function
  • Current Strength [A]: 75
  • Voltage [V]: 12
  • Relay function: Normally open contact
  • Housing Type: Synthetic Material Housing
  • Temperature range from [°C]: -40
  • Temperature range to [°C]: 100
  • Protection Type (IP Code): IP54
  • Colour: Black/Grey
  • Supplementary Article / Supplementary Info: without holder
  • Resistor [Ohm]: 46
  • BOSCH  Relay
  • Item number  0 332 002 156
  • Manufacturer's suggested retail price   £ 37,88
  • Our price   £ 27,65
  • Condition  New
Details