Ford Focus · 2022
2022 Ford Focus Glow Plug Fuse & Relay
Diesel slow to start from cold, or the glow plug light flashing? Check the glow plug fuse and relay.
- UK specification
- Verified data
- Checked 14 October 2026
- Sources
Quick answer
VerifiedApplies toFocus (2018) · Built up to 4 September 2022Focus (2018) · Built 5 September 2022 to 9 July 2023Focus Vignale (2018) · Built up to 4 September 2022Focus Vignale (2018) · Built 5 September 2022 to 9 July 2023
- Fuse
- 140
- Amperage
- 60A
- Fuse box
- Under the bonnet
- Location
- Under the bonnet (engine compartment)
Where is the fuse box?
Under hood fuse box
Under the bonnet (engine compartment)
- Pull the latch toward you and remove the top cover.
- Pull the connector lever upward.
- Pull the connector upward to remove it.
- Pull both latches toward you and remove the fuse box.
- Turn the fuse box over and open the lid.
Fuse box diagram
Full 2022 Ford Focus fuse chartWe haven’t drawn a schematic of the under hood 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
- 140
Under the bonnet (engine compartment)
Fuse ·60A · Glow plugs - diesel.
Position not shown on the schematic. Find fuse 140 on the fuse box legend.
Always confirm the number against the legend on the fuse box cover before pulling anything.
How to replace the fuse safely
- Switch off the ignition and all electrical equipment. Take the key out, or move a keyless fob away from the car.
- Open the fuse box and find the fuse using the number on the cover legend or the chart on this page.
- Pull the fuse straight out with the plastic fuse puller (usually clipped inside the fuse box) or fine-nose pliers.
- Look at the metal strip inside the fuse. A broken or burnt strip means it has blown.
- Fit a new fuse with exactly the same amperage rating. The number on top and the colour should match.
- 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.
Diesel engines only
Glow plugs are only fitted to diesel engines. Petrol cars use spark plugs instead.
Flashing warning light
A flashing glow plug (coil) light while driving usually means an engine fault code. Read the codes before replacing parts.
Worn plugs
Glow plugs wear out. If starting is only poor in cold weather, one or more plugs may have failed rather than the fuse.
Sources & verification
Applies toFocus (2018) · Built up to 4 September 2022
- Manufacturer manual listingFord UK — 2022 Focus (2018) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built Up To: 04/09/2022) · Accessed 14 October 2026
- Manufacturer manual listingFord UK — 2023 Focus (2018) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built Up To: 04/09/2022) · Accessed 14 October 2026
- Owner’s manualFord Focus (2018) Owner’s Manual — CG3929en, edition 08/2021 · Ford Motor Company · Fuse specification chart — Under hood fuse box (pp. 373–375); Fuse specification chart — Passenger compartment fuse box (pp. 377–378); Fuse specification chart — Trailer tow module fuse box (5-door and wagon) (pp. 378–378) · Accessed 14 October 2026
Applies toFocus (2018) · Built 5 September 2022 to 9 July 2023
- Manufacturer manual listingFord UK — 2022 Focus (2018) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 05/09/2022 Vehicles Built Up To: 09/07/2023) · Accessed 14 October 2026
- Manufacturer manual listingFord UK — 2023 Focus (2018) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 05/09/2022 Vehicles Built Up To: 09/07/2023) · Accessed 14 October 2026
- Owner’s manualFord Focus (2018) Owner’s Manual — CG3929en-202201-20220606124635.pdf, edition 01/2022 · Ford Motor Company · Fuse specification chart — Under hood fuse box (pp. 382–384); Fuse specification chart — Passenger compartment fuse box (pp. 386–387); Fuse specification chart — Trailer tow module fuse box (5-door and wagon) (pp. 387–387) · Accessed 14 October 2026
Applies toFocus Vignale (2018) · Built up to 4 September 2022
- Manufacturer manual listingFord UK — 2022 Focus Vignale (2018) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built Up To: 04/09/2022) · Accessed 14 October 2026
- Manufacturer manual listingFord UK — 2023 Focus Vignale (2018) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built Up To: 04/09/2022) · Accessed 14 October 2026
- Owner’s manualFord Focus Vignale (2018) Owner’s Manual — CG3929en, edition 08/2021 · Ford Motor Company · Fuse specification chart — Under hood fuse box (pp. 373–375); Fuse specification chart — Passenger compartment fuse box (pp. 377–378); Fuse specification chart — Trailer tow module fuse box (5-door and wagon) (pp. 378–378) · Accessed 14 October 2026
Applies toFocus Vignale (2018) · Built 5 September 2022 to 9 July 2023
- Manufacturer manual listingFord UK — 2022 Focus Vignale (2018) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 05/09/2022 Vehicles Built Up To: 09/07/2023) · Accessed 14 October 2026
- Manufacturer manual listingFord UK — 2023 Focus Vignale (2018) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 05/09/2022 Vehicles Built Up To: 09/07/2023) · Accessed 14 October 2026
- Owner’s manualFord Focus Vignale (2018) Owner’s Manual — CG3929en-202201-20220606124635.pdf, edition 01/2022 · Ford Motor Company · Fuse specification chart — Under hood fuse box (pp. 382–384); Fuse specification chart — Passenger compartment fuse box (pp. 386–387); Fuse specification chart — Trailer tow module fuse box (5-door and wagon) (pp. 387–387) · Accessed 14 October 2026
Fuse layouts can differ between trim levels and optional equipment. Always confirm against the legend on your fuse box.