Ford Focus 1.5 EcoBoost Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Ford Focus 1.5 EcoBoost engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most cost-effective solution for your vehicle.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £2,500 to £4,000
Used from £600 · Reconditioned from £1,600 · Common codes: M8DA, M8DB, M9DA, M9DB
From £600
Tested, bare/short engine
From £1,600
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
Secure enquiry - no spam, no pressure. Genuine quotes only from vetted UK Ford Focus 1.5 EcoBoost specialists.
3 Simple Steps3 Simple Stepsto Finding the Best Ford Focus 1.5 EcoBoost Replacement Engineto Finding the Best Ford Focus 1.5 EcoBoost Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryFord Focus 1.5 EcoBoost - Engine History & Specs at a Glance
Introduced as a highly efficient, downsized turbocharged alternative in the Focus range, the 1.5 EcoBoost variant debuted in the Mk3 facelift and continued into the Mk4 generation, offering a balance of punchy performance and improved fuel economy over older naturally aspirated units.
Variant HistoryFord Focus 1.5 EcoBoost - Engine History & Specs at a Glance
Introduced as a highly efficient, downsized turbocharged alternative in the Focus range, the 1.5 EcoBoost variant debuted in the Mk3 facelift and continued into the Mk4 generation, offering a balance of punchy performance and improved fuel economy over older naturally aspirated units.
Ford Focus 1.5 EcoBoost
Fuel TypePetrol
Engine Size Range1.5L
Power Output Range150-182HPEngine History Timeline
M8DA 1.5L Petrol, 150HP (110kW) - Introduced in the Mk3.5 Focus facelift, replacing the 1.6 EcoBoost with cylinder deactivation technology for better efficiency.
M9DA 1.5L Petrol, 182HP (134kW) - Launched with the Mk4 Focus, featuring a revised turbo setup and higher output for ST-Line and Titanium X trims.
Key Specs Snapshot
Fuel TypePetrolEngine Size Range1.5LPower Output Range150-182HPYears Produced2014-presentEvery engine fitted to the Ford Focus 1.5 EcoBoost is covered below, with UK rebuilt pricing and known failure points.
Ford Focus 1.5 EcoBoost Engine Codes - Specifications & Replacement CostFord Focus 1.5 EcoBoost Engine Codes - Specifications & Replacement Cost
1.5L Petrol (2014-2018)
Power Output150HP (110kW)Years Fitted2014-2018
Compatible Trim Levels
- Zetec
- Titanium
- ST-Line
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£600-£1,400
Reconditioned
Addressed known issues, tested
£1,600-£3,000
Rebuilt
Full teardown, upgraded internals
£2,500-£4,000
Common Failure
Coolant leaks from block porosity or head gasket failure, often leading to overheating and "milkshake" oil contamination, typically observed after 60,000 miles.
The Ford Focus 1.5 EcoBoost is a punchy, efficient unit, but it is not without its well-documented vulnerabilities. The M8DA and M9DA codes dominate replacement demand for this variant due to coolant intrusion and head gasket failures. Rebuilt engines through EnginesMarket include upgraded components addressing these original failure points, plus a minimum 12-month unlimited-mileage warranty.
Why the Ford Focus 1.5 EcoBoost (M8DA/M9DA) Overheats
Affected Vehicles
Ford Focus 1.5 EcoBoost (M8DA, M9DA, 2014-present)
Typical Failure Mileage
60,000-100,000 miles
Root Cause
Porosity in the engine block casting or head gasket degradation allows coolant to leak into the cylinders or oil galleries, creating a "milkshake" emulsion and leading to catastrophic overheating if ignored.
Why It Happens
Porosity in the engine block casting or head gasket degradation allows coolant to leak into the cylinders or oil galleries, creating a "milkshake" emulsion and leading to catastrophic overheating if ignored.
Dealer (parts + labour)
£1,200-£2,000
Specialist (parts + labour)
£800-£1,500
What it involves
Strip top end, replace head gasket, skim head, flush cooling system.
Suitability
Suitable only if the block is confirmed free of cracks and porosity via pressure testing.
1 - 2 daysDealer (parts + labour)
£3,500-£5,000
Specialist (parts + labour)
£2,500-£4,000
What it involves
Supply & fit, upgraded components addressing the original failure point, 12-month warranty.
Suitability
The right call when block porosity is confirmed or when overheating has warped the cylinder head.
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Minor/Preventative (Head Gasket Replace) Minor | £1,200-£2,000 | £800-£1,500 | Strip top end, replace head gasket, skim head, flush cooling system. | Suitable only if the block is confirmed free of cracks and porosity via pressure testing. | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £3,500-£5,000 | £2,500-£4,000 | Supply & fit, upgraded components addressing the original failure point, 12-month warranty. | The right call when block porosity is confirmed or when overheating has warped the cylinder head. | 1 - 2 days |
Our Recommendation
Our Recommendation
For Ford Focus 1.5 EcoBoost owners, a targeted head gasket replacement is only advisable if a specialist confirms the block is not porous. Because block porosity is a known casting flaw on the M8DA/M9DA, a full reconditioned or rebuilt engine is often the most reliable long-term solution, as it replaces the flawed block entirely and comes with a robust warranty.
Don't Let Engine Failure Write Off Your Ford Focus 1.5 EcoBoost
Whether you need a budget-friendly used unit or a comprehensively rebuilt engine with upgraded components, comparing quotes ensures you do not overpay. Every engine supplied through our network includes a minimum 12-month unlimited mileage warranty and nationwide delivery options, protecting you from main dealer premiums.
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
"All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Ford Focus 1.5 EcoBoost. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Ford Focus 1.5 EcoBoost Engine ReplacementFrequently Asked Questions
Question 1How much does a Ford Focus 1.5 EcoBoost engine replacement cost-
A full rebuilt Ford Focus 1.5 EcoBoost engine typically costs between £2,500 and £4,000 for supply only, while used units start from around £600.
- Prices vary based on the specific engine code (M8DA or M9DA).
- Costs differ depending on whether you choose supply-only or a nationwide supply & fit package.
- Always compare multiple specialist quotes to ensure you are getting a competitive rate with a valid warranty.
Question 2What are the common signs of Ford Focus 1.5 EcoBoost engine failure-
Owners of the Ford Focus 1.5 EcoBoost should watch for persistent overheating, white smoke from the exhaust, and a noticeable loss of power or limp mode.
- A "milkshake" appearance on the oil filler cap indicates coolant has mixed with the engine oil.
- If the engine management light is flashing alongside these symptoms, stop driving immediately.
- Continuing to drive can cause catastrophic internal damage to the engine block.
Question 3Is it worth replacing the engine in a Ford Focus 1.5 EcoBoost-
Given that Mk3.5 and Mk4 Ford Focus 1.5 EcoBoost models typically hold a market value between £4,000 and £12,000, a full rebuilt engine can represent a significant portion of the car's worth.
- For older Mk3.5 models valued under £5,000, sourcing a verified low-mileage used engine is often the most financially sensible option.
- A rebuilt unit is highly recommended for newer Mk4 models, as the cost is comfortably absorbed by the vehicle's higher retained value.
- Always weigh the replacement cost against the vehicle's current market value before committing.
Question 4How long does a Ford Focus 1.5 EcoBoost engine replacement take-
A standard supply-only delivery of a Ford Focus 1.5 EcoBoost engine takes 1 to 3 working days via nationwide courier.
- If you opt for a supply & fit service, the physical installation and testing process typically requires 1 to 2 days at a specialist garage.
- Total turnaround time from quote to completion is usually under a week.
- This depends entirely on parts availability and your chosen supplier's schedule.
Question 5What is the difference between the M8DA and M9DA engine codes in the Ford Focus 1.5 EcoBoost-
The M8DA code was introduced in the Mk3.5 Focus (2014-2018) producing 150HP, while the M9DA code was launched with the Mk4 Focus (2018-present) with an increased output of 182HP.
- Although they share the same 1.5L EcoBoost architecture, their ECU mapping and turbocharger setups differ.
- Swapping them requires significant software and hardware modifications.
- Always verify your exact engine code via your V5C logbook or registration before ordering a replacement.
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