2015 Mercedes-Benz ML350 (W166) — Repair Solution

3.0L OM642.826 6cyl 24v DOHC Turbo CRD Diesel Auto · Loss Of Power · Engine

Mercedes-Benz ML350 (W166) Loss Of Power Engine Diagnostic Sequence Available

Vehicle Details

Make: Mercedes-Benz
Model: ML350 (W166)
Year: 2015
Engine: 3.0L OM642.826 6cyl 24v DOHC Turbo CRD Diesel Auto
Kilometres: 143,463
Area: Engine
Category: Loss Of Power

Customer Complaint

The vehicle was lacking power and appeared to be operating in a limp mode condition.

Problem Summary

The vehicle presented with reduced power and appeared to be in limp mode, with no engine warning lights illuminated. Initial scanning revealed EGR-related fault codes pointing to a circuit fault in the exhaust gas recirculation actuator. The codes returned shortly after clearing once the vehicle had warmed up and been driven.

Diagnostic Sequence

The step-by-step diagnostic process used to identify this fault is available to TaT members.

Unlock with Free Trial

Fault Description

The detailed fault description and root cause analysis for this 2015 Mercedes-Benz ML350 (W166) is available to TaT members.

Unlock with Free Trial

Verified Repair Solution

The confirmed repair procedure for this 2015 Mercedes-Benz ML350 (W166) is available to TaT members. Includes the verified fix and technician tips.

Unlock with Free Trial

Quick Facts

CodeMERML15128
Vehicle2015 Mercedes-Benz ML350 (W166)
Engine3.0L OM642.826 6cyl 24v DOHC Turbo CRD Diesel Auto
ComplaintVisible
Diag. SequenceMembers Only
SolutionMembers Only

Need the Full Fix?

Get the complete diagnostic sequence, verified solution, and technician tips.

Access the Full Repair Solutions Database

Unlock 6,127 verified repair solutions with complete diagnostic details, confirmed fixes, and technician tips.


© 2026 The Automotive Technician (TaT) — www.tat.net.au