There are 1 owner-reported engine complaints for the 2009 Lincoln MKXin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2009 Lincoln MKX. The contact stated while driving 45 MPH, there was an abnormal sound coming from the front passenger’s side of the vehicle. The contact stated that the engine power reduced message was displayed and the wrench warning light was illuminated. The contact pulled over to allow the engine to cool down. The contact removed the oil cap and stated that the engine oil looked like chocolate milk. The contact took the vehicle Precision Tune to get the oil changed and was informed there was a major coolant leak. The vehicle was not repaired due to the cost. The manufacturer was made aware of the failure and the contact was informed to call the NHTSA Hotline for assistance. The approximate failure mileage was 125,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026