WenmarOpen by Wenmar Pro

Service bulletins for the 2018 Lincoln MKX

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

142 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
SSM 473392018-07-23. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Some 2017-2018 Edge vehicles with 3.5L engines and MKX vehicles with 3.7L engines may exhibit an illuminated MIL with DTC P013C in the powertrain control module (PCM). This may be due to an exhaust system leak. Exhaust leak inspection should be conducted before performing Powertrain Control/Emissions Diagnostics PC/ED Manual diagnostic routines. Inspect for carbon soot/moisture witness marks at all exhaust connections and catalyst monitor sensor (CMS) threads. Refer to Workshop Manual (WSM), Section 303-14C. Inspect CMS crush washer to confirm sensor is fully seated in the exhaust pipe. Apply soapy water to exhaust connections including CMS threads, while exhaust flow is restricted at the tailpipe and exhaust system is pressurized at 5 PSI (do not exceed 5 PSI), will increase ability to identify and confirm leaks.
TSB18-20572018-05-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Some 2015-2018 Edge and 2016-2018 MKX vehicles may exhibit an exhaust odor in the vehicle while the climate control system is in auto or recirculation mode. Customers may indicate the odor smells like sulfur or exhaust odors are entering the vehicle cabin. This concern may be more pronounced after hard acceleration, driving in hilly conditions and/or towing a trailer. Whether and to what extent any occupant of these vehicles experiences the exhaust odor will be affected by driving habits, weather, and individual sensitivities. Follow the Service Procedure steps to correct the condition.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.