Mercedes-Benz AMG E63S 2011–2016 — warranty extension

Bulletin EW-Exhaust Valve Assembly · NHTSA communication 11031590 · issued Sep 6, 2023

Warranty extension

communication type

Engine

component

2011–2016

model years

vehicle entries

Official summary

This NCU replaces the prior NCU issued on March 10, 2023, and contains clarification on reimbursement timeline and removal of damage codes related to intake valves/guide. In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC ("MBUSA") is extending the warranty coverage on the exhaust valve system in certain Model Year ("MY") vehicles listed below as follows: MY 2011: Original New Vehicle Limited Warranty of 4 years / 50,000 miles New Vehicle to 12 years / 120,000 miles (whichever occurs firs

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.