Engines Market

Ford S-Max 2.0 EcoBoost Specialists

Ford S-Max 2.0 EcoBoost Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Ford S-Max 2.0 EcoBoost engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most reliable and affordable replacement for your vehicle.

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Ford S-Max 2.0 EcoBoost Engine
from£1,800 to £3,500...
  • Usedfrom £800
  • Reconditionedfrom £1,800
  • Common codesUNBA, UNBB

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How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Ford S-Max 2.0 EcoBoost Engine History & Specs at a Glance

The 2.0 EcoBoost petrol engine was introduced to the S-Max range as a high-performance alternative to the diesel lineup, offering 238bhp for spirited family transport across the Mk2 generation.

Ford S-Max 2.0 EcoBoost
  1. 2015

    UNBA introduced, 2.0L EcoBoost (238bhp), launched alongside the Mk2 S-Max to provide a powerful petrol option for performance-oriented families.

  2. 2018

    UNBB introduced, featuring refined engine management and improved emissions compliance for the Mk2 facelift while maintaining 238bhp output.

Every engine fitted to the Ford S-Max 2.0 EcoBoost is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Ford S-Max 2.0 EcoBoost Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

UNBA — 2.0L Petrol (2015-2018) engine

UNBA — 2.0L Petrol (2015-2018)

Power Output
238bhp (177 kW)
Years Fitted
2015-2018

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Common Problems

Ford S-Max 2.0 EcoBoost Engine Problems Repair Cost vs Replacement

The Ford S-Max 2.0 EcoBoost is a powerful and refined performance petrol engine, but high-mileage examples are prone to specific timing chain and carbon buildup issues. The UNBA and UNBB codes dominate replacement demand due to cumulative wear on timing chain tensioners and intake valve deposits. Rebuilt engines supplied through EnginesMarket include upgraded components addressing these original failure points, backed by a minimum 12-month unlimited-mileage warranty.

Common failure points and repair options

Timing Chain Tensioner Failure

Affected
Ford S-Max 2.0 EcoBoost (UNBA, UNBB, 2015-present)
Typical failure mileage
60,000-100,000 miles
Root cause
The timing chain tensioner can wear prematurely, leading to chain slack, rattling noises on cold start, and potential P0016/P0017 camshaft-crankshaft correlation error codes.

Repair options

Repair tierDealer priceSpecialist price
Minor/Preventative (Timing Chain & Tensioner Replacement)£1,200-£2,000£800-£1,500
Full Replacement - rebuilt/reconditioned engine£3,500-£5,500£2,500-£4,000
Our recommendation
If the issue is isolated to timing chain rattle without engine damage, a specialist timing chain service is cost-effective. However, if the chain has jumped or caused internal damage, a reconditioned or rebuilt engine is the most financially sound long-term solution.
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Carbon Buildup on Intake Valves

Affected
Ford S-Max 2.0 EcoBoost (UNBA, UNBB, 2015-present)
Typical failure mileage
60,000-100,000 miles
Root cause
Direct injection design means fuel doesn't wash over intake valves, allowing carbon deposits to accumulate, leading to rough idle, misfires, and reduced power output.

Repair options

Repair tierDealer priceSpecialist price
Minor/Preventative (Walnut Blasting Carbon Clean)£400-£700£250-£450
Full Replacement - rebuilt/reconditioned engine£3,500-£5,500£2,500-£4,000
Our recommendation
Regular walnut blasting every 40,000-50,000 miles is essential preventative maintenance for direct injection engines. If carbon buildup has already caused severe damage, a rebuilt unit is the safest and most reliable path forward.
-> Compare rebuilt Ford S-Max 2.0 EcoBoost engine prices

Don't Let Engine Failure Write Off Your Ford S-Max 2.0 EcoBoost

Navigating engine repairs can be costly, but you don't have to accept main dealer premiums. By comparing quotes through EnginesMarket, you access vetted UK specialists who provide rebuilt Ford S-Max 2.0 EcoBoost engines with upgraded components and a minimum 12-month unlimited mileage warranty, all with nationwide delivery and supply & fit options.

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FAQ

Ford S-Max 2.0 EcoBoost Engine ReplacementFrequently Asked Questions

Everything Ford S-Max 2.0 EcoBoost owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

Why Choose Us

Compare Ford S-Max 2.0 EcoBoost Engine Prices Today

Don't overpay for your Ford S-Max 2.0 EcoBoost engine replacement. Our free, no-obligation comparison tool connects you directly with vetted UK specialists who stock the exact UNBA or UNBB unit your vehicle requires. Get transparent, itemised quotes today and drive away with confidence.

200+200+ Ford S-Max 2.0 EcoBoost engines supplied through our network
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