Check engine light illuminated Fault code stored in N3/10 control unit- P052E71 – Positive Crankcase...
Mercedes-Benz technical service bulletin LI01.20-P-076894 for 2015-2018 Mercedes-Benz C300, 2016-2019 Mercedes-Benz GLC 300 and 2016-2018 Mercedes-Benz E300 and others.
- Bulletin number
- LI01.20-P-076894
- Component
- Engine and engine cooling: exhaust system: emission control: crankcase (PCV)
- Summary
- Check engine light illuminated Fault code stored in N3/10 control unit- P052E71 – Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase ventilation has a malfunction The partial-load ventilation valve (a part of the intake line assembly) may not work as intended Performed guided test for fault code P052E71. Replace intake line assembly if necessary per results of the guided test. Do not perform software update of N3/10 Engine control unit at this time. This LI will be updated once the software solution is available. This LI is in relation to NCU dated 8/31/2023 "Emission Extended Warranty – Intake Line Assembly".
Owners of these vehicles have filed 525 complaints in the engine category.
Vehicles covered
- Mercedes-Benz C300 2015-2018 2015201620172018
- Mercedes-Benz GLC 300 2016-2019 2016201720182019
- Mercedes-Benz E300 2016-2018 201620172018
- Mercedes-Benz GLK250 2013-2015 201320142015
- Mercedes-Benz E250 2014-2016 201420152016
- Mercedes-Benz C350E 2016-2018 201620172018
- Mercedes Benz C 300 4matic 2018 2018
- Mercedes-Benz GLC 350 E 2018-2019 20182019
- Mercedes-Benz SLC 300 2017-2019 201720182019
VIN decoder
See the problems and recalls for an exact car
Buying a used Mercedes-Benz C300?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history