Ford Mondeo CD391

1.5 TDCi 88 kW/120 hp, Mondeo V (CD391 2015-2022)

• !! Injector Problems: Juddering and Knocking from 140,000 km

  Faulty injectors cause severe juddering and knocking on acceleration. Problem occurs from approx. 140,000–150,000 km. Multiple injectors become leaky or faulty simultaneously. Ford has replaced all 4 injectors in individual cases without a permanent fix.

  Symptoms: Heavy juddering, knocking on acceleration, engine misfires, power loss
  400–1,600 $
  Ad Ford 1.5 EcoBlue injector Focus Mk41.5 EcoBlue injector ZTDB XWDA
• !! Recall Camshaft Sprocket Material Fatigue (16B42)

  Ford recalled approximately 8,400 vehicles (production October 2014 to April 2015) because the camshaft sprocket can fracture due to material fatigue and damage the engine.

  0–0 $
  Ad camshaft sprocket 1.5 TDCi SFJA Fordtiming belt kit 1.5 TDCi Ford recall 16B42
• !! EGR Cooler Crack with Coolant Ingestion from 120,000 km

  The EGR cooler develops cracks under extreme thermal cycling. Coolant enters the intake tract and forms black foam in the expansion tank. In the worst case a hydraulic lock results.

  Symptoms: Black or oily foam in the coolant expansion tank, coolant loss with no external leak, white exhaust smoke, tendency to overheat.
  500–1,200 $
  Ad EGR cooler 1.5 TDCi Ford Focus SFJAEGR cooler Ford EcoBlueEGR cooler gasket kit Ford 1884177

+ 3 more engine weaknesses + vehicle weaknesses

2.0 EcoBlue 140 kW/190 hp 8AT, Mondeo V facelift (CD391 2019-2022)

• !! Continental Injector Coating Defect (2019) from 50,000 km

  Continental injectors with a faulty internal coating (vehicles built Feb–Sep 2019). The coating delaminates and blocks the injector. Ford service action: free injector replacement (Ford TSB-20-2335). Affected vehicles: Transit, Ranger, Focus, Mondeo, S-Max, Galaxy, Edge.

  Symptoms: Hesitation, poor idle, power reduction, increased fuel consumption, limp mode
  0–2,000 $
  Ad GK2Q-9K546-AA GK2Q-9K546-AB GK2Q-9K546-AC GK2Q-9K546-ADContinental injector Ford EcoBlue 2.0
• !! DPF Clogging from Injector Soot Ingestion from 80,000 km

  Faulty injectors generate excessive soot that prematurely clogs the DPF. On the high-output variant (190 hp), soot also blocks the low-pressure filter of the dual EGR system. Repair requires simultaneous replacement of injectors AND DPF (TSB-20-2335). Replacing the DPF alone does not resolve the issue long-term.

  Symptoms: Fault codes P2002, P02EC, P02FA, check engine light, power reduction
  500–2,500 $
  Ad Ford 2.0 EcoBlue DPF particulate filter2.0 EcoBlue DPF Focus Mondeo S-Max
• !! Head Gasket Failure from 90,000 km

  The 1.5 EcoBoost 134 kW is particularly prone to head gasket failure from overheating during short-trip use. Workshops report a cluster of failures in model years 2018–2019.

  Symptoms: White smoke from exhaust, coolant loss without visible external leak, sweet smell in exhaust, engine overheating.
  1,200–2,500 $
  Ad Head gasket 1.5 EcoBoostCylinder head gasket Ford Focus ST

+ 5 more engine weaknesses + vehicle weaknesses

2.0 EcoBlue 88 kW/120 hp, Mondeo V facelift (CD391 2019-2022)

• !! Continental Injector Coating Defect (2019) from 50,000 km

  Continental injectors with a faulty internal coating (vehicles built Feb–Sep 2019). The coating delaminates and blocks the injector. Ford service action: free injector replacement (Ford TSB-20-2335). Affected vehicles: Transit, Ranger, Focus, Mondeo, S-Max, Galaxy, Edge.

  Symptoms: Hesitation, poor idle, power reduction, increased fuel consumption, limp mode
  0–2,000 $
  Ad GK2Q-9K546-AA GK2Q-9K546-AB GK2Q-9K546-AC GK2Q-9K546-ADContinental injector Ford EcoBlue 2.0
• !! DPF Clogging from Injector Soot Ingestion from 80,000 km

  Faulty injectors generate excessive soot that prematurely clogs the DPF. On the high-output variant (190 hp), soot also blocks the low-pressure filter of the dual EGR system. Repair requires simultaneous replacement of injectors AND DPF (TSB-20-2335). Replacing the DPF alone does not resolve the issue long-term.

  Symptoms: Fault codes P2002, P02EC, P02FA, check engine light, power reduction
  500–2,500 $
  Ad Ford 2.0 EcoBlue DPF particulate filter2.0 EcoBlue DPF Focus Mondeo S-Max
• !! Oil Pump Timing Belt Wear from 120,000 km

  The wet timing belt on the 1.5 EcoBoost mandates Ford oil WSS-M2C948-B. Wrong oil specifications lead to premature belt wear and imminent engine damage.

  Symptoms: Rattling on cold start, oil pressure drop, in extreme cases total engine failure from oil pump failure.
  400–1,000 $
  Ad oil pumpn timing belt 1.5 EcoBoostRiemen-in-Oil Ford Focus

+ 5 more engine weaknesses + vehicle weaknesses

2.0 TDCi 110 kW/150 hp, Mondeo V (CD391 2014-2022)

• !! Continental Injector Coating Defect (2019) from 50,000 km

  Continental injectors with a faulty internal coating (vehicles built Feb–Sep 2019). The coating delaminates and blocks the injector. Ford service action: free injector replacement (Ford TSB-20-2335). Affected vehicles: Transit, Ranger, Focus, Mondeo, S-Max, Galaxy, Edge.

  Symptoms: Hesitation, poor idle, power reduction, increased fuel consumption, limp mode
  0–2,000 $
  Ad GK2Q-9K546-AA GK2Q-9K546-AB GK2Q-9K546-AC GK2Q-9K546-ADContinental injector Ford EcoBlue 2.0
• !! DPF Clogging from Injector Soot Ingestion from 80,000 km

  Faulty injectors generate excessive soot that prematurely clogs the DPF. On the high-output variant (190 hp), soot also blocks the low-pressure filter of the dual EGR system. Repair requires simultaneous replacement of injectors AND DPF (TSB-20-2335). Replacing the DPF alone does not resolve the issue long-term.

  Symptoms: Fault codes P2002, P02EC, P02FA, check engine light, power reduction
  500–2,500 $
  Ad Ford 2.0 EcoBlue DPF particulate filter2.0 EcoBlue DPF Focus Mondeo S-Max
• !! Oil Bath Belt Clogs Oil Pump Strainer from 100,000 km

  The oil bath timing belt disintegrates and clogs the oil pump strainer with debris particles. The engine dies from oil starvation — bearings, crankshaft, camshaft and turbocharger are destroyed.

  Symptoms: No prior warning: oil pressure drops, engine runs rough, then total destruction. Belt itself may look intact visually.
  1,900–2,300 $
  Ad timing belt EcoBlue 2.0 oil bathoil pump drive belt EcoBluetiming belt kit Ford EcoBlue 2.02011555 Ford oil bath drive belt EcoBlue

+ 4 more engine weaknesses + vehicle weaknesses

2.0 TDCi 132 kW/180 hp, Mondeo V (CD391 2014-2022)

• !! Continental Injector Coating Defect (2019) from 50,000 km

  Continental injectors with a faulty internal coating (vehicles built Feb–Sep 2019). The coating delaminates and blocks the injector. Ford service action: free injector replacement (Ford TSB-20-2335). Affected vehicles: Transit, Ranger, Focus, Mondeo, S-Max, Galaxy, Edge.

  Symptoms: Hesitation, poor idle, power reduction, increased fuel consumption, limp mode
  0–2,000 $
  Ad GK2Q-9K546-AA GK2Q-9K546-AB GK2Q-9K546-AC GK2Q-9K546-ADContinental injector Ford EcoBlue 2.0
• !! DPF Clogging from Injector Soot Ingestion from 80,000 km

  Faulty injectors generate excessive soot that prematurely clogs the DPF. On the high-output variant (190 hp), soot also blocks the low-pressure filter of the dual EGR system. Repair requires simultaneous replacement of injectors AND DPF (TSB-20-2335). Replacing the DPF alone does not resolve the issue long-term.

  Symptoms: Fault codes P2002, P02EC, P02FA, check engine light, power reduction
  500–2,500 $
  Ad Ford 2.0 EcoBlue DPF particulate filter2.0 EcoBlue DPF Focus Mondeo S-Max
• !! Oil Bath Belt Clogs Oil Pump Strainer from 100,000 km

  The oil bath timing belt disintegrates and clogs the oil pump strainer with debris particles. The engine dies from oil starvation — bearings, crankshaft, camshaft and turbocharger are destroyed.

  Symptoms: No prior warning: oil pressure drops, engine runs rough, then total destruction. Belt itself may look intact visually.
  1,900–2,300 $
  Ad timing belt EcoBlue 2.0 oil bathoil pump drive belt EcoBluetiming belt kit Ford EcoBlue 2.02011555 Ford oil bath drive belt EcoBlue

+ 4 more engine weaknesses + vehicle weaknesses

2.0 TDCi 155 kW/210 hp PowerShift, Mondeo V (CD391 2014-2022)

• !! Continental Injector Coating Defect (2019) from 50,000 km

  Continental injectors with a faulty internal coating (vehicles built Feb–Sep 2019). The coating delaminates and blocks the injector. Ford service action: free injector replacement (Ford TSB-20-2335). Affected vehicles: Transit, Ranger, Focus, Mondeo, S-Max, Galaxy, Edge.

  Symptoms: Hesitation, poor idle, power reduction, increased fuel consumption, limp mode
  0–2,000 $
  Ad GK2Q-9K546-AA GK2Q-9K546-AB GK2Q-9K546-AC GK2Q-9K546-ADContinental injector Ford EcoBlue 2.0
• !! DPF Clogging from Injector Soot Ingestion from 80,000 km

  Faulty injectors generate excessive soot that prematurely clogs the DPF. On the high-output variant (190 hp), soot also blocks the low-pressure filter of the dual EGR system. Repair requires simultaneous replacement of injectors AND DPF (TSB-20-2335). Replacing the DPF alone does not resolve the issue long-term.

  Symptoms: Fault codes P2002, P02EC, P02FA, check engine light, power reduction
  500–2,500 $
  Ad Ford 2.0 EcoBlue DPF particulate filter2.0 EcoBlue DPF Focus Mondeo S-Max
• !! Oil Bath Belt Clogs Oil Pump Strainer from 100,000 km

  The oil bath timing belt disintegrates and clogs the oil pump strainer with debris particles. The engine dies from oil starvation — bearings, crankshaft, camshaft and turbocharger are destroyed.

  Symptoms: No prior warning: oil pressure drops, engine runs rough, then total destruction. Belt itself may look intact visually.
  1,900–2,300 $
  Ad timing belt EcoBlue 2.0 oil bathoil pump drive belt EcoBluetiming belt kit Ford EcoBlue 2.02011555 Ford oil bath drive belt EcoBlue

+ 4 more engine weaknesses + vehicle weaknesses

1.0 EcoBoost 92 kW/125 hp, Mondeo V (CD391 2014-2018)

• !! Oil-Bath Timing Belt — Engine Damage Risk from 100,000 km

  The 1.0 EcoBoost M1CA (Mondeo MK5, S-Max MK2) shares the well-known oil-bath timing belt weakness. With incorrect oil or overdue change intervals, belt wear and engine damage occur.

  Symptoms: Oil discolouration with rubber particles, power loss, warning light, engine failure
  400–900 $
  Ad timing beltsatz Ford 1.0 EcoBoost (oil bath)Ford EcoBoost 1.0 wet Riemen set
• !! Head Gasket Failure on Overheating from 130,000 km

  Overheating events from faulty thermostats or coolant leaks quickly cause cylinder head damage on the 1.0 EcoBoost M1CA. The compact three-cylinder has little thermal reserve.

  Symptoms: Temperature gauge in red, coolant loss, white exhaust smoke, oil emulsion
  600–1,800 $
  Ad Ford 1.0 EcoBoost cylinder head gasketFord Mondeo EcoBoost cylinder head gasket
• !! Cylinder Head Crack: Coolant Loss and Overheating Risk from 100,000 km

  Cracks in the cylinder head between the integrated exhaust manifold and coolant jacket cause gradual coolant loss. Overheating and engine damage threaten if detected late.

  Symptoms: Persistently dropping coolant without external leak points; rough cold start; coolant appears milky or foamy.
  2,500–5,500 $
  Ad cylinder head 1.0 EcoBoost 125PS Fordcylinder head M1CA Focus

+ 4 more engine weaknesses + vehicle weaknesses

1.5L EcoBoost in the Mondeo CD391. Four-cylinder turbo for more demanding use. Shares the structural block issue with other 1.5 EcoBoost engines produced up to 2019.

• !! Cylinder Liner Crack — Coolant Entering Cylinder from 80,000 km

  Same open-deck problem as other 1.5 EcoBoost variants: hairline cracks in the cylinder liner allow coolant into the combustion chambers. Ford TSB: short block replacement. Revised block from mid-2019.

  Symptoms: White exhaust smoke, coolant loss, rough cold running, oil-coolant emulsion.
  4,000–9,000 $
  Ad Ford Mondeo 1.5 EcoBoost cylinder blockFord 1.5 EcoBoost short block
• !! Cylinder Head Crack at Integrated Exhaust Manifold from 130,000 km

  The integrated exhaust manifold in the cylinder head promotes hairline cracks between the coolant jacket and the exhaust port. Coolant loss and overheating can cause engine damage.

  Symptoms: Repeatedly dropping coolant level with no visible external leak; fault code P0420 (catalyst efficiency); white smoke from exhaust.
  3,000–6,000 $
  Ad cylinder head 1.0 EcoBoost Fordcylinder head 1.0 EcoBoost UNCA
• !! Hairline Crack in Engine Block — Coolant Ingestion (up to MY 2019) from 60,000 km

  Early 1.5 EcoBoost four-cylinders (up to approximately March 2019) are prone to hairline cracks in the cylinder block. Coolant enters the cylinders and causes severe engine damage. Short block replacement required.

  Symptoms: Rough cold start, white smoke from exhaust, coolant loss with no external leak, check engine light.
  3,500–9,000 $
  Ad short block Ford 1.5 EcoBoostengine block Ford 1.5 EcoBoost four-cylinderhead gasket Ford 1.5 EcoBoost Focus Kuga

+ 4 more engine weaknesses + vehicle weaknesses

2.0L Atkinson hybrid in the Mondeo CD391. Ford's own hybrid implementation with eCVT. Very reliable combustion engine, but the eCVT gearbox is a critical component with high repair costs if it fails.

• !! eCVT Hybrid Transmission Failure from 120,000 km

  The eCVT hybrid transmission is designed as a sealed unit — no conventional servicing possible. Failure means complete transmission replacement at very high cost. Mondeo Hybrid 2015 with 55,000 miles: £6,500 replacement.

  Symptoms: Transmission fault warning light, judder or howling while driving, sudden loss of drive.
  5,000–9,000 $
  Ad Ford Mondeo Hybrid eCVT transmissionFord Mondeo 2.0 Atkinson Hybrid transmission
• !! HV Battery Capacity Loss from 160,000 km

  The NiMH high-voltage battery in the Mondeo Hybrid loses noticeable capacity from around 150,000 km. Electric range drops below 1 km, the combustion engine starts more frequently. Replacement costs €3,000–5,000.

  Symptoms: Reduced EV-only operation; hybrid system warning light; increased fuel consumption despite normal driving style; frequent combustion engine start.
  3,000–5,000 $
  Ad Ford Mondeo Hybrid HV batteryFord Mondeo Hybrid battery packNiMH hybrid battery Mondeo
• !! DC-DC Converter Failure — 12V System Collapse from 100,000 km

  The DC-DC converter that steps down the HV battery to 12V can fail and cause the 12V electrical system to collapse. Sporadically reported on C-Max/Kuga Hybrid with Atkinson engine.

  Symptoms: All warning lights on simultaneously; vehicle breaks down; 12V battery no longer charges; system error on SYNC display.
  800–2,500 $
  Ad DC-DC converter Ford C-Max Hybrid EnergiDC-DC converter Ford Kuga Hybrid12V electrical system Ford Hybrid IVMA

+ 3 more engine weaknesses + vehicle weaknesses

2.0L EcoBoost in the Mondeo CD391. Newer generation with improved block from 2019. Shares fundamental EcoBoost weaknesses, structural cracking issue on early models.

• !! Low-Pressure Fuel Pump (LPFP) Failure from 120,000 km

  The in-tank low-pressure fuel pump is a known weak point on all 2.0 EcoBoost engines. A clogged fuel filter increases pump load until failure.

  Symptoms: Hesitation and power loss under load, difficult starting, code P0087, sudden engine stall.
  400–1,200 $
  Ad Ford 2.0 EcoBoost fuel pumpFord LPFP 2.0 EcoBoostCM5Z9C407A
• !! Hairline Cracks in Engine Block (Coolant Loss) from 120,000 km

  Older 2.0 EcoBoost engines show hairline cracks in the open-deck block at high mileages with coolant intrusion. Issue existed until approximately 2019; revised block is more robust.

  Symptoms: Coolant loss with no visible leak, rough cold start, oil-coolant mix.
  3,000–9,000 $
  Ad Ford 2.0 EcoBoost engine blockFord EcoBoost short block 2.0
• !! Hairline Crack in Engine Block — Coolant Entering Combustion Chamber from 60,000 km

  Known manufacturing defect up to mid-2019: hairline cracks in the cylinder block between cylinders allow coolant to enter the combustion chamber. Ford revised the block from mid-2019 onwards.

  Symptoms: Coolant loss with no external leak; rough cold start; white smoke from exhaust; milky coolant.
  3,000–8,000 $
  Ad replacement engine Ford 2.0 EcoBoostengine block Ford 2.0 EcoBoost Kuga Mondeocylinder head Ford 2.0 EcoBoost TNBA

+ 3 more engine weaknesses + vehicle weaknesses

2.0L EcoBoost in the Mondeo CD391. Same family weaknesses as all 2.0 EcoBoost. Typical Mondeo mixed-use profile. Block revision from 2019.

• !! Low-Pressure Fuel Pump (LPFP) Failure from 120,000 km

  The in-tank low-pressure fuel pump is a known weak point on all 2.0 EcoBoost engines. A clogged fuel filter increases pump load until failure.

  Symptoms: Stumbling and power loss under load, difficult starting, code P0087, sudden engine shutdown.
  400–1,200 $
  Ad Ford 2.0 EcoBoost fuel pumpFord LPFP 2.0 EcoBoostCM5Z9C407A
• !! Engine Block Hairline Cracks (Coolant Loss) from 120,000 km

  Older 2.0 EcoBoost engines show hairline cracks in the open-deck block with coolant ingestion at high mileage. Issue existed up to around 2019; newer block is more robust.

  Symptoms: Coolant loss without visible leak, rough cold start, oil-coolant mixture.
  3,000–9,000 $
  Ad Ford 2.0 EcoBoost engine blockFord EcoBoost short block 2.0
• !! Engine Block Hairline Crack — Coolant Entering Combustion Chamber from 60,000 km

  Production-line design flaw up to mid-2019: a hairline crack in the cylinder block between the cylinders lets coolant enter the combustion chamber. Ford revised the block from mid-2019.

  Symptoms: Coolant loss without external leak; rough cold start; white smoke from exhaust; coolant milky.
  3,000–8,000 $
  Ad replacement engine Ford 2.0 EcoBoostengine block Ford 2.0 EcoBoost Kuga Mondeocylinder head Ford 2.0 EcoBoost TNBA

+ 3 more engine weaknesses + vehicle weaknesses