Ford Fiesta Mk7, B-Max, EcoSport Gen1, Focus Mk3 & C-Max II 1.0 EcoBoost — Performance Ignition Coils
The original CM5G-era Ford 1.0 EcoBoost is the engine that put Ford's 3-cylinder turbo on the map — International Engine of the Year multiple times running — and it's also the engine that made "1.0 EcoBoost coil failure" a familiar phrase to every Ford tech in the country. The Fiesta Mk7, B-Max, EcoSport Gen1, Focus Mk3, C-Max II and Mondeo Mk5 all share the same CM5G coil-on-plug, and every one of them is prone to coil breakdown well before the rest of the engine wears. MTP-1011 is a direct plug & play replacement engineered in the UK, delivering 12% more spark energy across all 3 cylinders — same fit, better heat handling, cleaner ignition on boost.
- Years
- 2012 – 2022
- Chassis
- B299 · CB7 · CDX · C346 · Mk5 CD391
- Engine code
- CM5G · SFJA · SFJB · SFCA (early) · M1JE · M2JA
- Engine
- 1.0 EcoBoost turbo 3-cylinder (100 / 125 bhp)
- Power
- 100 – 125 bhp
- Coils needed
- 3 × Mantis MTP-1011 - Ford Fiesta Mk7 1.0 EcoBoost 3-Cyl Performance Ignition Coil (2012-2017)
Set includes all 3 coils. Only need one? Choose "Just 1 coil" if you're replacing a single failed unit.
Signs your 1.0 EcoBoost 3-Cylinder (CM5G platform) needs new coils
- Misfire codes P0301–P0303 on FORScan, ELMconfig or a generic OBDII scanner
- Rough idle when cold — especially first-thing in the morning
- Noticeable loss of pull above 3,500 rpm under load
- Fuel economy dropping without another explanation
- Intermittent check-engine light that clears on next start
- Judder or hesitation on pull-away — classic CM5G single-coil misfire symptom
Installation notes
Direct plug & play — no coding, no FORScan work required, identical fitment across all CM5G 1.0 EcoBoost variants (BA / CA / CB suffix). Pull the engine cover, unclip the 3 coil connectors, remove the OE coils, and swap in the MTP-1011s. Because the 1.0 EcoBoost is a 3-cylinder turbo working under high specific output, always replace as a set of 3 — mixed-age coils cause uneven spark distribution and the PCM pulls timing to compensate, negating the performance benefit of the new units. Torque coil bolts to 8 Nm. Total install time: 15–20 minutes on Fiesta / B-Max, slightly longer on Focus Mk3 / Mondeo Mk5 due to intake plumbing.
Common questions
Will this fit my Fiesta Mk7 / Focus Mk3 / Mondeo 1.0 EB without coding?
Yes. Direct plug & play replacement — the PCM reads MTP-1011 identically to the OE Ford CM5G coil. No coding, no FORScan or IDS work needed on any Mk7-era 1.0 EcoBoost variant, across all BA / CA / CB suffix versions.
Do I really need all 3, or can I just replace one?
We strongly recommend replacing all 3 as a set. On a 3-cylinder the coils are worked hard and evenly — if one has failed, the other two have seen identical heat and hours and are likely close behind. Mixed-age coils cause uneven spark, and the PCM compensates by pulling timing, which loses the performance benefit of the new coils. That said, if you're in a bind and just need to get moving, one MTP-1011 will absolutely work as a temporary fix.
The Mk7-era 1.0 EcoBoost has a real reputation for coil failure — is this actually better?
That's exactly the market MTP-1011 is built for. The OE CM5G coil is one of the most-replaced ignition parts in the Ford aftermarket — heat under sustained boost breaks down the primary winding long before the rest of the engine wears out. MTP-1011 uses a redesigned neodymium primary core, better heat dissipation, and UK-engineered QA — 12% more spark energy with real thermal headroom. Same physical fit, same connector, same wiring — a straight swap that lasts.
This coil also fits
Full application list — Ford 1.0 EcoBoost 3-cyl CM5G (Mk7 era):
- Ford Fiesta Mk7 / B299 (2012–2017) — 100 / 125 bhp
- Ford B-Max (2012–2017) — 100 / 125 bhp
- Ford EcoSport Gen1 1.0 EB (2014–2017)
- Ford Focus Mk3 1.0 EB (2014–2018) — 100 / 125 bhp
- Ford C-Max II 1.0 EB (2010–2019)
- Ford Grand C-Max 1.0 EB
- Ford Mondeo Mk5 1.0 EB (2014–2022)
- Ford Tourneo Connect 1.0 EB
- Ford Transit Connect 1.0 EB
OE cross-references
These are the original manufacturer part numbers this coil directly replaces. Check the number stamped on your existing coil against this list before ordering to confirm your fitment.
Ready to fit your Ford 1.0 EcoBoost 3-Cylinder (CM5G platform)?
Full set · £89.97 · UK dispatch · Direct plug & play