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Ford Focus · 2018

2018 Ford Focus Fog Light Fuse & Relay

Front fog lights not working? Check the fog light fuse and relay.

  • UK specification
  • Verified data
  • Checked 14 October 2026
  • Sources
Which 2018 Focus do you have?

The fog light fuse & relay 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
    Fuse
    F75
    Amperage
    15A
    Fuse box
    Passenger compartment
    Location
    In the passenger 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)

    Passenger compartment fuse box

    In the passenger compartment

    1. Pinch the retaining clips to release the cover.
    2. Lower the fuse box cover and pull it towards you.

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

    Fuse box diagram

    Full 2018 Ford Focus fuse chart

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

    We haven’t drawn a schematic of the passenger 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

    • F75

      In the passenger compartment

      Fuse ·15A · Front fog lamps.

      Position not shown on the schematic. Find fuse F75 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.

    • Headlights must be on

      Front fog lights usually only work with the sidelights or dipped beam switched on.

    • Bulbs

      If only one fog light is out, a blown bulb is far more likely than the fuse.

    • Water in the lamp

      Fog lights sit low and can let water in. Corrosion in the lamp or its connector can stop them working.

    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.