Auxiliary (fan) belt replacement

A new drive belt for the alternator, air con and power steering.

Typically £34 – £45 depending on your car · About 45 minutes

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Free, instant and no obligation. You won't be charged until the work is done.

About this job

The auxiliary belt, often called the fan belt, drives the alternator, air con and on many cars the power steering. A cracked or glazed belt squeals and, if it snaps, the battery stops charging. The mechanic fits and tensions a new belt and checks the pulleys.

Signs you might need it

  • Squeal on start-up or when turning
  • Cracks on the belt
  • Battery light after a squeal

What's included

  • Replacement auxiliary belt
  • Pulley and tensioner check

Plus travel, disposal of old parts and a 12-month / 12,000-mile warranty.

Typical prices by car size

Small car (e.g. city car, supermini)£34
Medium car (e.g. family hatchback, saloon)£34
Large car / SUV / MPV£40
Premium or performance car£45
Small van / pickup£41

Auxiliary (fan) belt replacement prices for popular cars

Questions about auxiliary (fan) belt replacement

How long does auxiliary (fan) belt replacement take?

Usually about 45 minutes. Your mechanic will tell you if your car needs longer.

Can it be done at my home?

In most cases, yes. Mobile mechanics need a safe, level place to park, such as a driveway or quiet street. If your job needs a workshop we'll let you know before you pay anything.

Is the price fixed?

Yes. The price on your quote is what you pay. If the mechanic finds something else, they'll explain it and give you a separate price – nothing extra is done without your OK.

Is the work covered by a warranty?

Yes – parts and labour are covered for 12 months or 12,000 miles, whichever comes first. Diagnostics, customer-supplied parts and wear items aren't covered. See our warranty page for the details.

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