# Service bulletin NCU\-2023070019

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: 10241530
- Published by NHTSA: 2023\-09\-01
- Manufacturer's number: NCU\-2023070019
- Manufacturer's date: 2023\-08\-25
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Mercedes\-Benz AG \(“MBAG”\), the manufacturer of Mercedes\-Benz vehicles, has determined that on certain Model Year 2021 C\-Class \(205 platform\), CLA \(118 platform\), G\-Class \(463 platform\), GLC \(253 platform\), GLA \(247 platform\) and GLE/GLS \(167 platform\) vehicles, the installed ignition coils may not correspond to current specifications. As a result, a misfire could occur, followed by potentially reduced engine output, and illumination of the check engine Malfunction Indicator Lamp \(‘MIL’\). This may also cause exhaust emissions to increase. MBUSA will conduct a voluntary Emissions Recall Campaign in which an authorized Mercedes\- Benz dealer will replace the ignition coils.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241530-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241530-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2021 MERCEDES\-BENZ AMG C43
- 2021 MERCEDES\-BENZ AMG C63
- 2021 MERCEDES\-BENZ AMG C63 S
- 2021 MERCEDES\-BENZ AMG CLA35
- 2021 MERCEDES\-BENZ AMG CLA45
- 2021 MERCEDES\-BENZ AMG G63
- 2021 MERCEDES\-BENZ AMG GLA35
- 2021 MERCEDES\-BENZ AMG GLA45
- 2021 MERCEDES\-BENZ AMG GLA45 S
- 2021 MERCEDES\-BENZ AMG GLC43
- 2021 MERCEDES\-BENZ AMG GLC63
- 2021 MERCEDES\-BENZ AMG GLC63 S
- 2021 MERCEDES\-BENZ AMG GLE43
- 2021 MERCEDES\-BENZ AMG GLE53
- 2021 MERCEDES\-BENZ AMG GLE63
- 2021 MERCEDES\-BENZ AMG GLE63 S
- 2021 MERCEDES\-BENZ AMG GLS63
- 2021 MERCEDES\-BENZ C 300
- 2021 MERCEDES\-BENZ CLA 250
- 2021 MERCEDES\-BENZ G 550
- 2021 MERCEDES\-BENZ GLA 250
- 2021 MERCEDES\-BENZ GLC 300
- 2021 MERCEDES\-BENZ GLC 350 E
- 2021 MERCEDES\-BENZ GLE 350
- 2021 MERCEDES\-BENZ GLE 350 E
- 2021 MERCEDES\-BENZ GLE 400 E
- 2021 MERCEDES\-BENZ GLE 450
- 2021 MERCEDES\-BENZ GLE 580
- 2021 MERCEDES\-BENZ GLS450
- 2021 MERCEDES\-BENZ GLS580
- 2021 MERCEDES\-BENZ MAYBACH GLS600
- 2021 MERCEDES\-MAYBACH GLS 600

JSON: [/v1/bulletins/10241530](/v1/bulletins/10241530)

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