Alternator Replacement

Dimming lights or a car that dies a day after a jump start is usually the alternator, not the battery.

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Service Info

Typical Duration 2 hours

We test the charging system to confirm the alternator is at fault, remove the drive belt and old unit, fit the replacement, refit and tension the belt, then verify charging voltage at idle and under electrical load.

Skip the garage, our master mechanics come to you

At your home or office
Fair & transparent pricing
6-month, 6000km warranty

The Most Trusted Mobile Alternator Replacement

Is your battery warning light on, your headlights dimming at idle, or your car dying a day after a jump start? That is rarely the battery, it is usually the alternator failing to charge it. Michanic replaces alternators at your home or office, so you are not gambling on whether the car will make it to a workshop.

Why Choose Our Mobile Alternator Replacement Services?

A flat battery can be jump started. A failed alternator cannot. Once the stored charge is used up the car stops wherever it happens to be. We diagnose the charging fault on site, confirm it is the alternator and not the battery or a belt, and only then fit the replacement.

Why We’re the Best Choice for Mobile Alternator Replacement

Every alternator we fit is matched to your exact make, model and engine, because output and mounting differ even within one model range. After fitting we measure charging voltage at idle and under load, and check the drive belt and tensioner while we are in there, since a worn belt will kill a new alternator.

An alternator that is not charging properly drains the battery every time you drive. Drivers usually replace the battery first, get a few days of normal starting, then break down anyway.

Frequently Asked Questions

  • What are the signs of a failing alternator?
    The common signs are headlights that dim or flicker at idle, a battery warning light on the dash, electrical accessories behaving erratically, a whining noise from the engine bay, and a car that dies shortly after being jump started.
  • Can I keep driving with a failing alternator?
    Only until the charge stored in the battery runs out, which is often less than an hour once the battery warning light is on. When it goes, the engine stops, and power steering and braking assistance are lost. It is not a fault to nurse home over any distance.
  • Why did my new battery go flat again?
    A battery that goes flat within days of being replaced usually points to a charging fault rather than a faulty battery. If the alternator is not charging, a new battery simply runs down like the old one did. A parasitic drain on the electrical system causes the same symptom overnight.
  • How long does an alternator replacement take?
    Most vehicles take one to two hours. Engines where the alternator sits low in the bay or behind other components take longer, and some require removing the drive belt, intercooler piping or a wheel arch liner to reach it.
  • Should the drive belt be replaced at the same time?
    If the belt is cracked, glazed or has covered high mileage, yes. A worn belt or a seized tensioner can destroy a new alternator and leave the vehicle stranded again. The belt has to come off to change the alternator anyway, so it is inspected at the same time.