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Vauxhall Astra · 2017

2017 Vauxhall Astra Heated Rear Window Fuse

Rear screen not demisting? Check the heated rear window fuse.

  • UK specification
  • Verified data
  • Checked 15 October 2026
  • Sources

Partly covered: Vauxhall published February 2016, January 2017 and August 2017 Astra handbooks that could apply to a 2017 car, and their fuse charts differ. Vauxhall doesn’t say which cars each edition applies to, so we can’t tell which one matches a particular 2017 Astra. Every official chart is shown below — check the edition printed near the end of your handbook, or compare with the fuse box legend in your car, before removing anything.

Quick answer

Verified

Applies toHandbook edition February 2016Handbook edition January 2017Handbook edition August 2017

Vauxhall’s handbook doesn’t print fuse ratings, so none is shown. Fit a replacement with the same rating as the fuse you remove — the handbook says: “Data on the replacement fuse must match the data on the defective fuse.”

Fuse
29
Fuse box
Engine compartment
Location
The fuse box is in the front left of the engine compartment.

Where is the fuse box?

Engine compartment fuse box

The fuse box is in the front left of the engine compartment.

  1. Disengage the cover and remove it.
  2. After having changed defective fuses, close the fuse box cover and press until it engages.
  3. If the fuse box cover is not closed correctly, malfunction may occur.

Fuse box diagram

Full 2017 Vauxhall Astra fuse chart
Engine compartmentCarFixData schematic
Engine compartment fuse box: map of 57 fuse positions, fuse 29 highlighted123456789101112131415161718192021222324252627283031323334353637383940414243444546474849505152535455565729
This fuseOther fuse positionsNot usedOur own schematic, drawn from the fuse positions printed in Vauxhall’s handbook illustration of this fuse box. Not to scale and not a manufacturer drawing — always match the number on the fuse box before pulling a fuse.

Where to look

  • 29

    The fuse box is in the front left of the engine compartment.

    Fuse · Heated rear window

    Highlighted on the engine compartment map.

The map shows where each fuse sits. Always confirm the number against the legend on the fuse box cover before pulling anything.

How to replace the fuse safely

  1. Switch off the ignition and all electrical equipment. Take the key out, or move a keyless fob away from the car.
  2. Open the fuse box and find the fuse using the number on the cover legend or the chart on this page.
  3. Pull the fuse straight out with the plastic fuse puller (usually clipped inside the fuse box) or fine-nose pliers.
  4. Look at the metal strip inside the fuse. A broken or burnt strip means it has blown.
  5. Fit a new fuse with exactly the same amperage rating. The number on top and the colour should match.
  6. Refit the cover, switch on and test the component.
  • Never fit a fuse with a higher amperage rating than specified. It can let wiring overheat.
  • Never bridge a fuse with wire, foil or anything else.

Fuse keeps blowing?

A fuse that blows again straight away is doing its job. Something on that circuit is drawing too much current. Common causes are damaged wiring shorting to the bodywork, a failing motor or socket, water getting in, or a faulty accessory. Fitting fuse after fuse, or a bigger fuse, won’t fix the fault and can overheat the wiring. Have the circuit tested by an auto electrician.

Not the fuse? Check these next.

  • Only some lines clear

    If parts of the screen clear and others don’t, one of the printed heating lines is broken. A fuse fails all or nothing.

  • Connectors on the glass

    Power reaches the glass through small tabs at each side. Check both are still attached.

  • Engine running

    Some cars only power the heated rear window with the engine running.

Sources & verification

Applies toHandbook edition February 2016

Status
Verified
Specification
UK market
Last checked
15 October 2026

Applies toHandbook edition January 2017

Status
Verified
Specification
UK market
Last checked
15 October 2026

Applies toHandbook edition August 2017

Status
Verified
Specification
UK market
Last checked
15 October 2026

Fuse layouts can differ between trim levels and optional equipment. Always confirm against the legend on your fuse box.