Which 2018 Focus do you have?

The wing mirror fuse differs between versions of the 2018 Ford Focus. Until you choose, every possible result is shown.

Not sure which version you have?

    If you can’t confirm it, keep both results in mind and check the fuse box legend before removing anything.

    Quick answer

    Verified

    Option A Focus (2015) or Focus RS (2015)

    • UK specification
    • Verified data
    • Checked 14 October 2026
    • Sources

    Power exterior mirrors.

    Fuse
    F44
    Amperage
    10A
    Fuse box
    Luggage compartment
    Location
    In the luggage compartment

    Heated exterior mirrors.

    Fuse
    F45
    Amperage
    7.5A
    Fuse box
    Luggage compartment
    Location
    In the luggage compartment

    Quick answer

    Verified

    Option B Focus Electric (2015) or Focus (2018) or Focus Vignale (2018)

    • UK specification
    • Verified data
    • Checked 14 October 2026
    • Sources

    No fuse is listed for this in this version. Check the legend on your fuse box.

    Where is the fuse box?

    Option A Focus (2015) or Focus RS (2015)

    Luggage compartment fuse box

    In the luggage compartment

    Our source doesn’t describe how to open this fuse box. Check your owner’s handbook.

    Option B Focus Electric (2015) or Focus (2018) or Focus Vignale (2018)

    Option A Focus (2015) or Focus RS (2015)

    We haven’t drawn a schematic of the luggage compartment fuse box for this version yet. Use the fuse and relay numbers on this page and the legend on the fuse box to find the right position.

    Where to look

    • F44

      In the luggage compartment

      Fuse ·10A · Power exterior mirrors.

      Position not shown on the schematic. Find fuse F44 on the fuse box legend.

    • F45

      In the luggage compartment

      Fuse ·7.5A · Heated exterior mirrors.

      Position not shown on the schematic. Find fuse F45 on the fuse box legend.

    Always confirm the number against the legend on the fuse box cover before pulling anything.

    Option B Focus Electric (2015) or Focus (2018) or Focus Vignale (2018)

    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.

    • Which function failed?

      Adjustment, heating and folding can be on different circuits. Note exactly which one has stopped before checking fuses.

    • Mirror heating

      Heated mirrors often only work with the engine running, and may switch on with the heated rear window.

    • Damaged mirror

      After a knock, the mirror motor or its wiring inside the door can be damaged even if the glass looks fine.

    Sources & verification

    Focus (2015) · Built from 5 September 2016

    Status
    Verified
    Specification
    UK market
    Last checked
    14 October 2026

    Focus RS (2015) · Built from 5 September 2016

    Status
    Verified
    Specification
    UK market
    Last checked
    14 October 2026

    Focus Electric (2015) · Built from 16 January 2017

    Status
    Verified
    Specification
    UK market
    Last checked
    14 October 2026

    Focus (2018) · Built up to 14 October 2018

    Status
    Verified
    Specification
    UK market
    Last checked
    14 October 2026

    Focus (2018) · Built 15 October 2018 to 13 January 2019

    Status
    Verified
    Specification
    UK market
    Last checked
    14 October 2026

    Focus Vignale (2018) · Built up to 14 October 2018

    Status
    Verified
    Specification
    UK market
    Last checked
    14 October 2026

    Focus Vignale (2018) · Built 15 October 2018 to 13 January 2019

    Status
    Verified
    Specification
    UK market
    Last checked
    14 October 2026

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