Replace Electrics by yourself

Manuals and tips on repair and maintenance for Electrics

Here you will find numerous maintenance guides and video tutorials for Electrics
Make
Model
Car parts category
Electrics: replacement and repair guides
Repair Electrics step by step guide PDF

Top repair guides

Repair Electrics step by step guide PDF

Most viewed car repair video tutorials

Do it yourself change Electrics in your car
Headlight Bulb
Go to section
Do it yourself change Electrics in your car
Headlights
Go to section
Solve problems with your automobile watching our helpful video-guides
Auxiliary Stop Light
Go to section
  • Video-guides on how to repair your car yourself
    How to replace rear light lamp bulbs on RENAULT SCENIC 2 TUTORIAL | AUTODOC
  • Watch our comprehensive video tutorials and maintain your car
    How to replace rear light lamp bulbs on VW PASSAT B6 TUTORIAL | AUTODOC
  • Video-instructions for your car
    How to replace rear light lamp bulbs on SKODA OCTAVIA 2 (1Z3) TUTORIAL | AUTODOC
  • Learn how to solve problems with your automobile
    How to replace rear light lamp bulbs on AUDI Q7 TUTORIAL | AUTODOC
  • Watch our video-instructions and repair your car with no issues
    How to replace rear light lamp bulbs on RENAULT MEGANE 2 TUTORIAL | AUTODOC
  • Check out our useful videos about car maintenance
    How to replace rear light lamp bulbs on VW SHARAN 7M TUTORIAL | AUTODOC
  • Helpful tips & guides on car repair in our informative videos
    How to replace rear light lamp bulbs on VW GOLF 4 TUTORIAL | AUTODOC
  • Free video-guide on how to fix your automobile
    How to replace rear light lamp bulbs on SKODA OCTAVIA 1U TUTORIAL | AUTODOC
Solve problems with your automobile watching our helpful video-guides
Combination Rearlight Bulb
Go to section
  • Video-guides on how to repair your car yourself
    How to replace rear light lamp bulbs on RENAULT SCENIC 2 TUTORIAL | AUTODOC
  • Watch our comprehensive video tutorials and maintain your car
    How to replace rear light lamp bulbs NISSAN MICRA 3 TUTORIAL | AUTODOC
  • Video-instructions for your car
    How to replace rear light lamp bulbs on SKODA FABIA 6Y TUTORIAL | AUTODOC
  • Learn how to solve problems with your automobile
    How to replace rear light lamp bulbs on VW PASSAT B6 TUTORIAL | AUTODOC
  • Watch our video-instructions and repair your car with no issues
    How to replace rear light lamp bulbs on SKODA OCTAVIA 2 (1Z3) TUTORIAL | AUTODOC
  • Check out our useful videos about car maintenance
    How to replace rear light lamp bulbs on AUDI Q7 TUTORIAL | AUTODOC
  • Helpful tips & guides on car repair in our informative videos
    How to replace rear light lamp bulbs on RENAULT MEGANE 2 TUTORIAL | AUTODOC
  • Free video-guide on how to fix your automobile
    How to replace rear light lamp bulbs on VW SHARAN 7M TUTORIAL | AUTODOC
Solve problems with your automobile watching our helpful video-guides
Fog Light Bulb
Go to section
  • Video-guides on how to repair your car yourself
    How to replace fog light lamp bulb on RENAULT SCENIC 2 TUTORIAL | AUTODOC
  • Watch our comprehensive video tutorials and maintain your car
    How to replace fog and parking light lamp bulbs Mazda 626 GF TUTORIAL | AUTODOC
Solve problems with your automobile watching our helpful video-guides
Fog Lights
Go to section
  • Video-guides on how to repair your car yourself
    HOW TO REPLACE FOG LIGHT ON BMW 5 E60 TUTORIAL | AUTODOC
  • Watch our comprehensive video tutorials and maintain your car
    How to replace fog lights TOYOTA LAND CRUISER PRADO J120 TUTORIAL | AUTODOC
  • Video-instructions for your car
    How to replace fog lights on RENAULT GRAND SCENIC 2 TUTORIAL | AUTODOC
  • Learn how to solve problems with your automobile
    How to replace fog and parking light lamp bulbs Mazda 626 GF TUTORIAL | AUTODOC
Solve problems with your automobile watching our helpful video-guides
Generator
Go to section
  • Video-guides on how to repair your car yourself
    How to replace alternator on MERCEDES-BENZ 190 W201 TUTORIAL | AUTODOC
Solve problems with your automobile watching our helpful video-guides
Headlight Bulb
Go to section
  • Video-guides on how to repair your car yourself
    How to replace a headlight lamp bulb on SKODA OCTAVIA 2 (1Z3) TUTORIAL | AUTODOC
  • Watch our comprehensive video tutorials and maintain your car
    How to replace a headlight lamp bulb on SKODA FABIA 6Y TUTORIAL | AUTODOC
  • Video-instructions for your car
    How to replace a headlight lamp bulb on VW CADDY 3 TUTORIAL | AUTODOC
  • Learn how to solve problems with your automobile
    How to replace headlight lamp bulb Honda CR-V 1 TUTORIAL | AUTODOC
  • Watch our video-instructions and repair your car with no issues
    How to replace a headlight lamp bulb on DACIA LOGAN 1 TUTORIAL | AUTODOC
  • Check out our useful videos about car maintenance
    How to replace a headlight lamp bulb on VW PASSAT B5+ TUTORIAL | AUTODOC
  • Helpful tips & guides on car repair in our informative videos
    How to replace headlight bulb on VW TOURAN 1 (1T3) [TUTORIAL AUTODOC]
  • Free video-guide on how to fix your automobile
    How to replace a headlight lamp bulb on SKODA OCTAVIA 1U TUTORIAL | AUTODOC
Solve problems with your automobile watching our helpful video-guides
Headlights
Go to section
  • Video-guides on how to repair your car yourself
    How to replace a headlight lamp bulb on SKODA OCTAVIA 2 (1Z3) TUTORIAL | AUTODOC
  • Watch our comprehensive video tutorials and maintain your car
    How to replace a headlight lamp bulb on SKODA FABIA 6Y TUTORIAL | AUTODOC
  • Video-instructions for your car
    How to replace a headlight on AUDI A6 C5 TUTORIAL | AUTODOC
  • Learn how to solve problems with your automobile
    How to replace headlight Audi Q7 4L TUTORIAL | AUTODOC
  • Watch our video-instructions and repair your car with no issues
    How to replace a headlight on MERCEDES-BENZ 190 W201 TUTORIAL | AUTODOC
  • Check out our useful videos about car maintenance
    How to replace a headlight lamp bulb on VW CADDY 3 TUTORIAL | AUTODOC
  • Helpful tips & guides on car repair in our informative videos
    How to replace a headlight lamp bulb on DACIA LOGAN 1 TUTORIAL | AUTODOC
  • Free video-guide on how to fix your automobile
    How to replace a headlight lamp bulb on SKODA OCTAVIA 1U TUTORIAL | AUTODOC
Solve problems with your automobile watching our helpful video-guides
Indicator Bulb
Go to section
  • Video-guides on how to repair your car yourself
    How to replace rear light lamp bulbs NISSAN MICRA 3 TUTORIAL | AUTODOC
  • Watch our comprehensive video tutorials and maintain your car
    How to replace fog light lamp bulb on RENAULT SCENIC 2 TUTORIAL | AUTODOC
  • Video-instructions for your car
    How to replace turn light lamp AUDI Q7 4L TUTORIAL | AUTODOC
  • Learn how to solve problems with your automobile
    How to replace a turn signal light bulb on on RENAULT SCENIC 3 TUTORIAL | AUTODOC
  • Watch our video-instructions and repair your car with no issues
    How to replace rear light repeater lamps AUDI Q7 4L TUTORIAL | AUTODOC
  • Check out our useful videos about car maintenance
    How to replace turn light lamp Mazda 626 GF TUTORIAL | AUTODOC
Solve problems with your automobile watching our helpful video-guides
Number Plate Light
Go to section
  • Video-guides on how to repair your car yourself
    How to replace license plate light bulbs on RENAULT SCENIC 2 TUTORIAL | AUTODOC
  • Watch our comprehensive video tutorials and maintain your car
    How to replace license plate light bulbs on RENAULT SCENIC 2 TUTORIAL | AUTODOC
  • Video-instructions for your car
    How to replace license plate light bulbs on VW PASSAT B6 TUTORIAL | AUTODOC
  • Learn how to solve problems with your automobile
    How to replace license plate light bulbs on SKODA OCTAVIA 2 (1Z3) TUTORIAL | AUTODOC
  • Watch our video-instructions and repair your car with no issues
    How to replace license plate light bulbs on RENAULT MEGANE 2 TUTORIAL | AUTODOC
  • Check out our useful videos about car maintenance
    How to replace license plate light bulbs on AUDI Q7 TUTORIAL | AUTODOC
  • Helpful tips & guides on car repair in our informative videos
    How to replace license plate light bulbs on VW SHARAN 7M TUTORIAL | AUTODOC
Solve problems with your automobile watching our helpful video-guides
Number Plate Light Bulb
Go to section
  • Video-guides on how to repair your car yourself
    How to replace license plate light bulbs on RENAULT SCENIC 2 TUTORIAL | AUTODOC
  • Watch our comprehensive video tutorials and maintain your car
    How to replace license plate light bulbs on VW PASSAT B6 TUTORIAL | AUTODOC
  • Video-instructions for your car
    How to replace rear light lamp bulbs on SKODA FABIA 6Y TUTORIAL | AUTODOC
  • Learn how to solve problems with your automobile
    How to replace license plate light bulbs on SKODA OCTAVIA 2 (1Z3) TUTORIAL | AUTODOC
  • Watch our video-instructions and repair your car with no issues
    How to replace license plate light bulbs on RENAULT MEGANE 2 TUTORIAL | AUTODOC
  • Check out our useful videos about car maintenance
    How to replace a trunk light bulb on RENAULT SCENIC 2 TUTORIAL | AUTODOC
  • Helpful tips & guides on car repair in our informative videos
    How to replace license plate light bulbs on AUDI Q7 TUTORIAL | AUTODOC
  • Free video-guide on how to fix your automobile
    How to replace license plate light bulbs on VW SHARAN 7M TUTORIAL | AUTODOC
Solve problems with your automobile watching our helpful video-guides
Spotlight Bulb
Go to section
  • Video-guides on how to repair your car yourself
    How to replace a headlight lamp bulb on SKODA OCTAVIA 2 (1Z3) TUTORIAL | AUTODOC
  • Watch our comprehensive video tutorials and maintain your car
    How to replace rear light lamp bulbs on RENAULT SCENIC 2 TUTORIAL | AUTODOC
  • Video-instructions for your car
    How to replace a headlight lamp bulb on SKODA FABIA 6Y TUTORIAL | AUTODOC
  • Learn how to solve problems with your automobile
    How to replace parking light lamp bulb on RENAULT SCENIC 2 TUTORIAL | AUTODOC
  • Watch our video-instructions and repair your car with no issues
    How to replace rear light lamp bulbs NISSAN MICRA 3 TUTORIAL | AUTODOC
  • Check out our useful videos about car maintenance
    How to replace fog light lamp bulb on RENAULT SCENIC 2 TUTORIAL | AUTODOC
  • Helpful tips & guides on car repair in our informative videos
    How to replace a headlight lamp bulb on VW CADDY 3 TUTORIAL | AUTODOC
  • Free video-guide on how to fix your automobile
    How to replace headlight lamp bulb Honda CR-V 1 TUTORIAL | AUTODOC

Common questions about checking and repairing electrical equipment

What components are part of the vehicle’s electrical system?

Electrical equipment includes exterior and interior lighting elements, as well as all electrically powered devices of the car. Among them are: the on-board computer, anti-theft alarm, electrically adjustable seats, power windows, heated steering wheel and seats, parking sensors, and the navigation system. Connecting them requires wires, switches, relays and fuses. The power source is the car battery. While you are driving, it is charged by the alternator. It has an in-built voltage regulator. To start the engine, the starter is used.

What are the causes of car electrical equipment malfunctions?

Battery overcharging may be caused by a faulty voltage regulator or diode bridge of the alternator. If dirt gets on the alternator winding, it can cause a short circuit, while worn-out brushes and slip rings can disrupt the battery charging process. The latter also takes place when the drive belt is loosened or broken. Current-consuming devices may burn out due to high voltage, short circuit, corroded or heat-damaged terminals.

What can cause low voltage in a car?

The problem may occur due to a faulty relay or diode bridge of the alternator which fails to maintain the required voltage level. Installing a device that consumes too much power or using a worn-out car battery also reduces the voltage. Unsuitable wires, relays and fuses are another possible reason.

Car maintenance manuals