Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...

Bulletin number

PSL-NCU Return Parts 8/14

Component

Engine

Summary

Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than Thursday, September 3rd, 2026. After September 3rd, returns of these parts will no longer be accepted. These parts should be returned via ZSR Special Return, using item category SCM Authorized Part Return. Please include a copy of this NCU as your authorization to return these parts. This procedure will not affect your return allowance. All returned parts will be replaced in accordance with the chart provided below.

Owners of these vehicles have filed 13 complaints in the engine category.