NHTSA recall 19V821000
Engine And Engine Cooling · Mercedes-Benz USA, LLC
Details
What's wrong: Mercedes-Benz USA, LLC. (mbusa) is recalling certain 2018-2019 S560, S560 Cabriolet, and S560 4matic vehicles equipped with 8-cylinder gasoline engines. The threaded connection between the camshaft idler gear and the crankcase may be improperly tightened, possibly causing the idler gear to detach from the crankcase.
Why it matters: A detached idler gear can damage the engine, resulting in a stall and increasing the risk of a crash.
The fix: Mbusa will notify owners, and dealers will replace the engine, free of charge. The recall began February 21, 2020.
Affected vehicles on MotorDeets
All model years NHTSA lists
2018 Mercedes-Benz S560, 2019 Mercedes-Benz S560.
Recalls can cover only some VINs. Check yours on NHTSA's official recall page for 19V821000.
Source: NHTSA recall records. Summary shortened; the official notice has the full text.