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Ford · Van · 2006–2015 Custom Search

Ford S-Max WA6

Weaknesses, engine ratings and buying advice

2.1 / 5.0 · Based on 13 engine variants · How we rate
Most Fun Engine

220 PS

S-Max · Benzin

Sportiest Van

Fun to Drive!
Problem Engine

116 PS

1.6L Duratorq TDCi Diesel

9 weaknesses

Stay Away!

Generations


Engine Overview

The Ford S-Max WA6 is available with 9 engine variants — from 116 to 241 hp. 2 variants had engine changes — the model year is crucial.

1.6L Duratorq TDCi · Diesel· 115 PS
2010 2015

1.6 TDCi 85 kW/115 hp, S-Max I facelift (WA6 2010-2015)

+ 6 more engine weaknesses + vehicle weaknesses

1.8L Duratorq TDCi · Diesel· 125 PS
2006 2010

1.8 TDCi 92 kW/125 hp, S-Max I (WA6 2006-2010)

  • !! Injector seal: "Black Death" failure from 120,000 km

    The copper sealing washers at the injector seat fail under pressure and heat. Combustion gases blow past the injector and bake black, tar-like carbon onto the injector boss. Seized injectors require specialist tools for removal; the cylinder head sealing face can be damaged.

    Symptoms: Black deposits around injectors, diesel smell, rough running, cylinder pressure loss
    200–800 $
  • !! Turbocharger failure from 150,000 km

    Turbocharger damage from oil starvation due to blocked oil supply passages, or from soot ingress via leaking injector seals. Repair costs are significant, as the sump and cooler must also be cleaned in addition to the turbo.

    Symptoms: Whistling or grinding from the turbo area, severe power loss, oil entering the intake tract, blue exhaust smoke
    900–2,200 $
  • !! Seized Injectors — Cannot Be Extracted from 100,000 km

    Injectors in the Transit 2.0 EcoBlue corrode into the cylinder head and cannot be removed without Ford special tool 303-1706. Cylinder head removal is blocked until injectors are extracted.

    Symptoms: No driving symptoms; problem arises during maintenance or repair; injector will not pull out despite great force.
    800–3,000 $

+ 4 more engine weaknesses + vehicle weaknesses

2.0L Duratorq TDCi · Diesel· 140–163 PS Engine Change
2006 2010

2.0 TDCi 103 kW/140 hp, S-Max I (WA6 2006-2010)

+ 4 more engine weaknesses + vehicle weaknesses

2010 2015

2.0 TDCi 120 kW/163 hp, S-Max I facelift (WA6 2010-2015)

+ 7 more engine weaknesses + vehicle weaknesses

2010 2015

2.0 TDCi 103 kW/140 hp, S-Max I facelift (WA6 2010-2015) / Galaxy II facelift

+ 4 more engine weaknesses + vehicle weaknesses

2.2L Duratorq TDCi · Diesel· 175–200 PS Engine Change
2006 2010

2.2 TDCi 129 kW/175 hp, S-Max I (WA6 2006-2010)

  • !! Injector Failure and Piston Damage from 150,000 km

    Failed injectors cause over-fuelling of individual cylinders and piston damage (crack in piston crown). The 2.2L Duratorq has a high rate of engine failures from this damage pattern, especially on early build years. Ford recommends premium diesel for this engine.

    Symptoms: Knocking sounds, severe power loss, white or black smoke, engine failure
    500–8,000 $
  • !! Oil Pump Failure (Ranger 2.2) from 180,000 km

    On the Ranger 2.2 TDCi the oil pump can fail causing immediate pressure loss. The result is crankshaft bearing and turbocharger damage. Unusual noises from the engine bay are the first sign.

    Symptoms: Knocking from engine, oil pressure warning light, power loss, turbo noise
    1,500–6,000 $
  • !! High-Pressure Pump Failure from 150,000 km

    The high-pressure pump of the 2.2 Duratorq TDCi can fail. Metal debris from the pump contaminates the entire injection system and damages all injectors. Repair requires pump, all injectors and system flushing.

    Symptoms: Sudden power loss; engine won't start or stalls; fuel pressure too low per OBD; smoke; black residue in fuel system.
    1,500–5,000 $

+ 4 more engine weaknesses + vehicle weaknesses

2010 2015

2.2 TDCi 147 kW/200 hp, Mondeo III facelift (BA7 2010-2014) / S-Max facelift

+ 4 more engine weaknesses + vehicle weaknesses

2010 2015

2.2 TDCi 147 kW/200 hp, S-Max I facelift (WA6 2010-2015) / Galaxy II facelift

  • !! Injector Failure and Piston Damage from 150,000 km

    Failed injectors cause over-fuelling of individual cylinders and piston damage (crack in piston crown). The 2.2L Duratorq has a high rate of engine failures from this damage pattern, especially on early build years. Ford recommends premium diesel for this engine.

    Symptoms: Knocking sounds, severe power loss, white or black smoke, engine failure
    500–8,000 $
  • !! Oil Pump Failure (Ranger 2.2) from 180,000 km

    On the Ranger 2.2 TDCi the oil pump can fail causing immediate pressure loss. The result is crankshaft bearing and turbocharger damage. Unusual noises from the engine bay are the first sign.

    Symptoms: Knocking from engine, oil pressure warning light, power loss, turbo noise
    1,500–6,000 $
  • !! Timing Chain Stretch from 120,000 km

    The 1.5 EcoBoost in the Kuga II shows frequent premature timing chain stretch between 100,000–150,000 km. Chain jump leads to piston-to-valve contact and total engine failure.

    Symptoms: Rattling on cold start, engine warning light, misfires, in the worst case sudden engine failure.
    1,500–4,000 $

+ 4 more engine weaknesses + vehicle weaknesses

1.6L EcoBoost · Petrol· 160 PS
2010 2015

1.6 EcoBoost SCTi 118 kW/160 hp, S-Max I facelift (WA6 2010-2015)

  • !! Cylinder Head Cracks — Recall Issue from 80,000 km

    The 1.6 EcoBoost JTWA (S-Max MK1 FL, Galaxy MK2 FL) is also affected by cylinder head cracks from overheating. The Ford recall on cooling system monitoring applies to this variant as well.

    Symptoms: Coolant loss, white exhaust smoke, rising engine temperature
    1,500–4,000 $
  • !! PowerShift Gearbox Judder on Take-Off from 80,000 km

    The PowerShift dual-clutch gearbox in combination with the 1.6 EcoBoost JTWA exhibits the well-known shudder on take-off. Gearbox software updates and oil changes every 60,000 km are essential.

    Symptoms: Judder on take-off, slipping gearchanges at low speeds, gearbox warning light
    500–3,000 $
  • !! Turbocharger Wear from 140,000 km

    The 1.6 EcoBoost JTWA turbocharger wears prematurely when maintenance intervals slip. In the S-Max/Galaxy under heavy load with full payload, wear accelerates.

    Symptoms: Whistling turbo noise, declining boost pressure, blue smoke
    800–2,000 $

+ 4 more engine weaknesses + vehicle weaknesses

2.0L Duratec-HE · Petrol· 145 PS
2006 2010

2.0 Duratec 107 kW/145 hp, S-Max I (WA6 2006-2010)

+ 3 more engine weaknesses + vehicle weaknesses

2.0L EcoBoost · Petrol· 240 PS
2010 2015

2.0 EcoBoost 176 kW/240 hp PowerShift, Mondeo III facelift / S-Max facelift

  • !! Hairline Cracks in Engine Block (Older Models) from 100,000 km

    The 2.0L EcoBoost TPBA (Mondeo MK4 FL) can be affected by hairline cracks in the engine block that Ford did not address until 2019. Check carefully for coolant loss before purchase.

    Symptoms: Dropping coolant level, rough cold start, white exhaust smoke
    3,000–7,000 $
  • !! PowerShift Gearbox Judder from 80,000 km

    The PowerShift dual-clutch gearbox combined with the 2.0 EcoBoost TPBA shows the well-known pull-away judder. Gearbox oil change every 60,000 km is mandatory.

    Symptoms: Judder on pull-away or at low speeds, slipping gears
    500–3,000 $
  • !! Turbocharger Wear from 160,000 km

    The turbocharger on the 2.0 EcoBoost TPBA shows increased bearing wear when oil change intervals are exceeded or from oil dilution. At 150,000+ km watch for turbo noises.

    Symptoms: Whistling turbo noise, dropping boost pressure, bluish smoke
    1,000–2,500 $

+ 3 more engine weaknesses + vehicle weaknesses

2.3L Duratec-HE · Petrol· 161 PS
2006 2010

2.3 Duratec 119 kW/161 hp, S-Max I (WA6 2006-2010)

+ 3 more engine weaknesses + vehicle weaknesses

2.5L Duratec-ST · Petrol· 220 PS
2006 2010

2.5T 5-cylinder 162 kW/220 hp, S-Max I (WA6 2006-2010)

  • !! Turbocharger Wear on the Five-Cylinder from 130,000 km

    The 2.5L Duratec-ST HUWA (S-Max Mk1, Mondeo Mk4 ST) with 220 hp puts the turbocharger under heavy load. Bearing-wear oil leaks and falling boost pressure are known from 130,000 km.

    Symptoms: Whistling from the turbo, boost pressure drop, blue smoke at high revs
    1,200–3,000 $
  • !! Timing Belt — Long Neglected Change from 180,000 km

    The 2.5 Duratec-ST has a timing belt with a 200,000 km or 10-year change interval. Used cars often have no documented evidence of this service. A snapped belt causes immediate valvetrain destruction.

    Symptoms: Normally no warning; on a very old belt occasional faint rattle; after snap: immediate engine stop and destruction.
    600–1,500 $
  • !! Fuel System Issues — Hesitation at Part-Throttle from 120,000 km

    The 2.5 Duratec-ST shows hesitation at part-throttle at higher mileages from fouled injectors or a faulty fuel pressure regulator.

    Symptoms: Hesitation at 1,500–2,500 rpm, rough idle, poor throttle response
    300–900 $

+ 4 more engine weaknesses + vehicle weaknesses

Vehicle Weaknesses

WeaknessCost
Wiring harness damaged by washer reservoir

An overflowing windscreen washer reservoir damages the wiring harness that runs below it. Cable insulation is attacked by the fluid, which can lead to engine stalling, AC failure and fault code P0003.

Symptoms: Unexpected engine stall, fault messages in the instrument cluster, air conditioning stops working.
from 100,000 km
Medium
!Central locking opens/locks unintentionally

The central locking on the S-Max WA6 is known to be fault-prone: doors open spontaneously or cannot be opened, particularly the tailgate. In the worst case doors open while driving.

Symptoms: Doors open unintentionally or stay locked, tailgate doesn't respond to key fob.
from 80,000 km
Low
!Tyre pressure sensors: valve corrosion and seal failure

The TPMS tyre pressure sensors on the S-Max WA6 corrode at the valve stem and mounting, causing seal failure. In the worst case the valve can fracture and cause sudden pressure loss, especially at higher speeds.

Symptoms: TPMS warning light illuminated permanently; tyre pressure display missing or showing an error; audible hissing at the tyre.
from 100,000 km
Low

Test Reports

tuev

TÜV Report 2026

Below average

Driveshafts, steering system and steering joints are well below average in reliability. DPF issues on diesel variants.

2025-11

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Known Problems and Issues +

A total of 101 weaknesses have been documented for the Ford S-Max WA6 (2006–2015) — 93 engine-related and 8 vehicle-related. 6 problem engines: TPBA (2.0L EcoBoost), QYWA (1.8L Duratorq TDCi), JTWA (1.6L EcoBoost), TXWA (2.0L Duratorq TDCi), T1WA (1.6L Duratorq TDCi), KNWA (2.2L Duratorq TDCi). Typical issues affect Electronics, Suspension, Gearbox, Rust.

S-Max (QYWA, 2006–2010) — Stay Away!: Injector seal: "Black Death" failure, Turbocharger failure, Seized Injectors — Cannot Be Extracted. Power: 125 PS.

S-Max (QXWA, 2006–2010) — Be Careful: Injector Wear and Leaks, High-Pressure Pump Metal Contamination and Failure, Timing Belt Early Failure — Interval Too Long. Power: 140 PS.

S-Max (Q4WA, 2006–2010) — Be Careful: Injector Failure and Piston Damage, Oil Pump Failure (Ranger 2.2), High-Pressure Pump Failure. Power: 175 PS.

S-Max (KNBA, 2010–2015) — Be Careful: Injector Failure and Piston Damage, Oil Pump Failure (Ranger 2.2), High-Pressure Fuel Pump: Metal Wear and Failure. Power: 200 PS.

S-Max (TXWA, 2010–2015) — Stay Away!: Injector Wear and Leaks, Oil Bath Belt Clogs Oil Pump Strainer, Premature Turbocharger Failure from Oil Starvation. Power: 163 PS.

S-Max (T1WA, 2010–2015) — Stay Away!: Injector Seal 'Black Death' Failure, Turbocharger Failure from Oil Starvation, High-Pressure Pump Metal Debris and Failure. Power: 115 PS.

S-Max (UFWA, 2010–2015) — Be Careful: Injector Wear and Leaks, High-Pressure Pump Metal Debris and Failure, Premature Timing Belt Failure — Interval Too Long. Power: 140 PS.

S-Max (KNWA, 2010–2015) — Stay Away!: Injector Failure and Piston Damage, Oil Pump Failure (Ranger 2.2), Timing Chain Stretch. Power: 200 PS.

S-Max (AOWA, 2006–2010) — Be Careful: Intake Throttle Plate Risk (Galaxy/S-Max), Timing Chain Tensioner Wearing Out, Increased Oil Consumption. Power: 145 PS.

S-Max (SEWA, 2006–2010) — Be Careful: Intake Swirl Flap Issue (S-Max), Connecting Rod Bearing Damage at High Mileage, Increased Oil Consumption. Power: 161 PS.

S-Max (HUWA, 2006–2010) — Be Careful: Turbocharger Wear on the Five-Cylinder, Timing Belt — Long Neglected Change, Fuel System Issues — Hesitation at Part-Throttle. Power: 220 PS.

S-Max (TPBA, 2010–2015) — Stay Away!: Hairline Cracks in Engine Block (Older Models), PowerShift Gearbox Judder, Turbocharger Wear. Power: 240 PS.

S-Max (JTWA, 2010–2015) — Stay Away!: Cylinder Head Cracks — Recall Issue, PowerShift Gearbox Judder on Take-Off, Turbocharger Wear. Power: 160 PS.

What to watch out for with the Ford S-Max? See the detailed listing of all engine and vehicle weaknesses in the sections above.

Frequently Asked Questions

What problems and weaknesses does the Ford S-Max WA6 have? +
The Ford S-Max WA6 has 93 known engine weaknesses and 8 vehicle weaknesses.
What should I look for when buying a used Ford S-Max WA6? +
faq.watch_a_avoid
Which engine is recommended? +
Be careful: KNBA (2.2L Duratorq TDCi), AOWA (2.0L Duratec-HE), SEWA (2.3L Duratec-HE), HUWA (2.5L Duratec-ST), QXWA (2.0L Duratorq TDCi), Q4WA (2.2L Duratorq TDCi), UFWA (2.0L Duratorq TDCi). No engine is rated 'Good Choice'. The most fun to drive is the HUWA (2.5L Duratec-ST). Problem engine: T1WA (1.6L Duratorq TDCi) — stay away!
Which Ford S-Max WA6 engine is the most fun? +
The {code} ({displacement}) offers the most driving fun in the Ford S-Max WA6 — rated: "Fun to Drive!". {description} 220 hp five-cylinder turbo in the S-Max: Ford built the sportiest van. Corners like a saloon, sounds like a sports car.
Is the Ford S-Max WA6 worth buying used? +
Caution is advised with the Ford S-Max WA6 — 6 of 13 engine variants are rated 'Stay Away!'. The engine choice is crucial.
What horsepower variants are available for the Ford S-Max WA6? +
The Ford S-Max WA6 is available with engine variants from 116 to 241 hp. Petrol: TPBA (2.0L EcoBoost), AOWA (2.0L Duratec-HE), SEWA (2.3L Duratec-HE), HUWA (2.5L Duratec-ST), JTWA (1.6L EcoBoost). Diesel: KNBA (2.2L Duratorq TDCi), QYWA (1.8L Duratorq TDCi), QXWA (2.0L Duratorq TDCi), Q4WA (2.2L Duratorq TDCi), TXWA (2.0L Duratorq TDCi), T1WA (1.6L Duratorq TDCi), UFWA (2.0L Duratorq TDCi), KNWA (2.2L Duratorq TDCi).

Last updated: February 2026 · All information without guarantee