IsItAGoodCar
Reliability Guide

Common Problems with the
2020 Ford Mondeo Mk5 (CD391)

We've identified 2 known issues that can affect the 2020 Ford Mondeo Mk5 (CD391). 1 of these are serious faults that could be expensive to repair.

2
Known Issues
1
Serious
1
Moderate
0
Minor

All Known Issues

2.0 EcoBlue Wet Timing Belt Degradation & Oil Pump Strainer Clogging

SeriousEngine

Later Euro 6d 2.0 EcoBlue diesel engines utilize an internal oil-submerged timing belt ("wet belt") that sheds rubber particulate into the engine oil if incorrect specification 0W-20 oil is used, clogging the oil strainer and causing turbo/engine failure.

Est. Repair Cost: £900–£2,000
Warning Signs:

Low oil pressure warning lamp flashes under acceleration, Engine oil level rises from diesel fuel dilution, Whining noise from lower engine timing cover

What to Inspect:
  • Inspect oil filler cap with torch for rubber debris on visible timing gears
  • Verify strict annual oil service records with Ford WSS-M2C950-A specification oil
Verified by IsItAGoodCar Research TeamUpdated

Rear Integral-Link Trailing Arm Bush Tearing & Squeaking

ModerateSuspension & Chassis

The complex multi-link rear suspension bushes split and delaminate under heavy motorway loads, causing rear-end wandering, uneven tyre wear, and annoying creaking over road undulations.

Est. Repair Cost: £250–£550
Warning Signs:

Creaking or groaning noise from rear axle when going over speed bumps, Rear of car feels loose or steps out over wet manhole covers, Inner edge wear on rear tyres

What to Inspect:
  • Visually inspect rear lower trailing arm voided bushes for rubber tears or metal-on-metal contact
  • Check past MOT advisories for suspension bush play
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2020 Ford Mondeo Mk5 (CD391)

  • Check for coolant loss on 1.5 EcoBoost engines.
  • Verify SYNC 3 responsiveness.
  • Check the rear inflatable seatbelts (if fitted) for fraying.
Check a 2020 Ford Mondeo Mk5 (CD391) by Registration