Power steering assist failure and seizure at highway speed
Steering assist fails or the steering seizes at highway speed
Check engine light: On
Power steering issues include the steering wheel becoming firm/difficult to turn, and power steering seizure while driving at highway speeds, with "Service power steering now" warnings.
The same electric power steering failure is reported on the Lincoln MKS, which shares Ford's D3/D4 platform.
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VINs not matching recall database, or recall expired
Same steering defect as the recall, but excluded from coverage
Check engine light: On
Multiple complaints note that recalls related to the steering defect above have expired, or that owners' VINs do not match the recall database despite exhibiting the identical failure.
The Lincoln MKS shows a similar gap, where certain model years were left out of the recall.
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Recurring turbo boost failures
Both turbochargers blown simultaneously in some cases
Check engine light: On
Recurring turbo boost failures, oil pressure warnings with both turbochargers blown simultaneously, and excessive smoking from the exhaust are documented, alongside hard shifting and knocking sounds.
An internal PTU failure requiring replacement is also documented. The same failure is reported on the Lincoln MKS.
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Failed taillight seals causing water intrusion
Not covered under extended warranty in one documented case
Check engine light: Off
Rear taillights stopped working when headlights were on, traced to a failed seal that let water leak into the housing; the extended warranty did not cover this lighting issue in one documented case.
$1,500
The same tail-lamp seal water intrusion is documented on the Mercedes-Benz ML-Class.
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A/C Fan Speed Changing Constantly
A/C fan speed changes constantly
Check engine light: Off
A/C fan speed changes constantly. This is among the more frequently reported issues on this generation, with 18 owner reports on file.
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This generation's dominant complaint category (10 complaints) is power steering assist failure and seizure while driving at highway speeds, with "Service power steering now" warnings — the same electric power steering failure is reported on the Lincoln MKS, which shares Ford's D3/D4 platform. Multiple complaints note that recalls related to this steering defect have expired, or that owners' VINs do not match the recall database despite exhibiting the identical failure. Recurring turbo boost failures and an internal PTU failure are also reported on the Lincoln MKS.