P052E: owner reports and bulletins

Powertrain (generic, all makes). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P052E on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

214 complaints filed with NHTSA mention P052E, 214 of them since 2015, across 17 different models. The component owners most often filed it under: engine.

Most-reported models

VehicleComplaintsModel years reported
MERCEDES-BENZ C300742015, 2016
MERCEDES-BENZ C 300482017, 2018
MERCEDES-BENZ GLC300202016, 2017
MERCEDES-BENZ GLC 300172018, 2019
MERCEDES-BENZ GLA 250142015, 2016, 2017, 2018
MERCEDES-BENZ CLA250122014, 2015, 2016
MERCEDES-BENZ METRIS122016, 2017, 2018, 2019
MERCEDES-BENZ E30042017
MERCEDES-BENZ E 30032018, 2019

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.