Jaguar XF 2006–2010 — technical service bulletin
Bulletin JTB00268NAS3 · NHTSA communication 10064320 · issued Jan 6, 2014
Technical service bulletin
communication type
Engine
component
2006–2010
model years
10
vehicle entries
Official summary
"situation: on vehicles fitted with the 4.2l naturally aspirated engine only, the engine may experience a rough start or stall following a hot soak of 15-20 minutes. Cause: this may be caused by the fueling calibration not being robust for winter blend 10% ethanol fuel."
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.