2007–2022 Ford Mondeo
By Ray Delgado ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026
Save $335 by doing it yourself! Shop cost: $450
Quick answer: Spark Plug Replacement on a 2007–2022 Ford Mondeo is rated Advanced and takes about 45–90 minutes. You'll need 5 tools for this job, and parts cost about $115. This guide walks you through the full job step by step, including the mistakes to avoid.
| Part Name | Part Number | Price | Buy |
|---|---|---|---|
| Correct spark plug set for the gasoline/ICE engine in 2007-2022 Ford Mondeo; verify engine, heat range, gap, and VIN fitment | — | $115.00 | |
| Coil-boot seals or ignition coils only if inspection finds damage Optional | — | $35.00 |
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Follow these steps carefully
Petrol Mondeos only; TDCi diesels use glow plugs. All petrol models use coil-on-plug ignition with the coils in a row on the cam cover. Count your coils, buy the correct plug type, and let the engine cool fully.
Disconnect the negative battery terminal. The plastic engine cover lifts straight off its rubber posts; no bolts. The coils sit in a row on the cam cover, all reachable from above with no intake or plenum removal.
Work one cylinder at a time: squeeze the coil connector tab and pull it straight off, supporting the connector body since the tabs get brittle with age. Unbolt the coil, lift it up, and keep coils in firing order.
From my bay, those connector tabs go brittle with heat cycles — support the connector body with your other hand while you squeeze the tab. Snap one off and you're hunting a junkyard pigtail or driving with a zip-tied connector.
Blow each plug well clean. Use a 16mm plug socket with a rubber insert on a 6-inch extension to remove each plug. Compare old plugs across cylinders; one fouled plug can point to a weak coil or injector.
Gap-check each new plug against the owner's manual, adjusting only the ground strap. Thread each plug in by hand until finger-tight, then snug it a quarter to a half turn more after the washer seats; the aluminum head strips easily.
Seat each coil fully on its plug, snug the bolt, and reconnect the connector until it clicks; tug gently to confirm it's latched. Press the engine cover back onto its posts and reconnect the negative battery terminal.
Start the engine and check for a smooth idle with no warning lights, then drive to confirm clean pull through the rev range. Note the mileage and follow the owner's manual for the next plug change.
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
2007–2022
2007–2022
2007–2022
2007–2022
1993–2006
1993–2006
Acura CL · 2001–2003
Acura ILX · 2013–2022
Acura Integra · 2023–2026
Acura MDX · 2017–2021
Acura RDX · 2019–2024
Acura RL · 2005–2012
Acura TLX · 2015–2020
Acura TSX · 2004–2008
