Jaguar XF 2013 — technical service bulletin
Bulletin H058NAS1 · NHTSA communication 10146013 · issued Aug 13, 2018
Technical service bulletin
communication type
Engine and Engine Cooling
component
2013
model years
1
vehicle entries
Official summary
An issue has been identified on certain vehicles within the listed Affected Vehicle Range where if the engine coolant temperature is below 70° Celsius (158° Fahrenheit) in over-run, the engine runs using the incorrect level of mapping. In this region, the map is too retarded and may cause misfires which overheat the catalytic converter, resulting in damage.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.