# Service bulletin LI15.18\-P\-078654

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11012059
- Published by NHTSA: 2024\-12\-24
- Manufacturer's number: LI15.18\-P\-078654
- Manufacturer's date: 2024\-12\-20
- NHTSA component: ELECTRICAL SYSTEM; ENGINE

## NHTSA's summary

Complaint Engine warning light active. Fault code P012D12 The pressure sensor upstream of exhaust gas turbocharger has short circuit to positive. There is a short circuit to positive. is stored in the control unit N3/10 N3/10 \- engine electronics 'MED41''M264'. Cause In the course of a pre\-repair, the lines may be damaged due to the feed line to component part B28/11 pressure sensor downstream of air filter being routed too taut. \(see picture 1\) Remedy 1. Attach 12 V charger Note: An adequate voltage from the on\-board electrical system battery must be guaranteed for the entire duration of the work procedure. Otherwise the control units could be damaged if an undervoltage occurs. Information: Observe the operating instructions of the 12 V charger. Information: Use the 12 V charger to ensure a sufficient voltage \(minimum 12.5 V\) from the on\-board electrical system battery. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- 2. Attach diagnostic system Information: Always ensure that XENTRY Diagnosis is updated to the latest version. For further information on "Retail Data Storage", see the Service Information bulletin SI00.01\-D\-0044SG. Information: The operation steps in XENTRY Diagnosis must be complied with precisely at all times. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- 3. Carry out quick test and read out fault memory Information: If the above\-mentioned fault code \(P012D12\) is stored in the control unit ME \(N3/10\) continue with operation step 4. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- 4. Check line installation of component part B28/11 pressure sensor downstream of air filter for damage and routing free of tension. Repair defective lines as per XENTRY WIS. Note: Routing of the feed line free of tension must be ensured. \(See picture 2\)

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11012059-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11012059-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine

## Trouble codes named

P012D

## Vehicles listed

- 2022 to 2024 MERCEDES\-BENZ C 300
- 2023 to 2024 MERCEDES\-BENZ GLE 350
- 2025 MERCEDES\-BENZ GLE 350 4MATIC
- 2024 to 2025 MERCEDES\-BENZ GLE 450E 4MATIC

JSON: [/v1/bulletins/11012059](/v1/bulletins/11012059)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20LI15.18-P-078654&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11012059&vehicle=Service%20bulletin%20LI15.18-P-078654)