Land Rover LR4 2015–2016 — technical service bulletin
Bulletin SSM 72578 · NHTSA communication 10106102 · issued Jan 5, 2016
Technical service bulletin
communication type
Fuel System, Diesel
component
2015–2016
model years
4
vehicle entries
Official summary
"issue: crankshaft/crankshaft bearing failure 3.0 tdv6 diesel engine. Engine makes a loud rumbling/knocking sound when running which worsens as the engine is placed under load. Cause: rotation of main bearing shells."
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.