# Service bulletin LI46.80\-P\-072750

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: 10207196
- Published by NHTSA: 2022\-02\-04
- Manufacturer's number: LI46.80\-P\-072750
- Manufacturer's date: 2022\-01\-06
- NHTSA component: POWER TRAIN

## NHTSA's summary

Complaint The fault code C112502 is logged \(as current or stored\) in the rear axle control unit \(N68/4\). Cause The fault code is caused by communication with the ESP control unit: 1. After carrying out a quick test or performing a diagnosis on the ESP control unit \(N30/3\): This fault code occurs in the ESP control unit \(N30/3\) as a result of the diagnosis performed with XENTRY Diagnosis. At the point of diagnosis, the ESP control unit \(N30/3\) sends the value "ERROR" on the FlexRay. The rear axle steering control unit \(N68/4\) is not able to process this value and logs the fault code C112502. 2. As a result of a fault code logged in the ESP control unit \(N30/3\): As a result of the fault code logged in the ESP control unit \(N30/3\), the ESP control unit \(N30/3\) sends the value "ERROR" on the FlexRay and the rear axle steering \(N68/4\) switches to the safe mode provided for this purpose. Remedy Re. cause 1: If fault code C112502 does not occur until after a quick test or after a diagnosis performed directly in the ESP control unit \(N30/3\), the fault code can be ignored and deleted directly in the rear axle steering control unit \(N68/4\). If the fault code is current, perform an ignition off/on so that the fault code is only registered as stored. Re. cause 2: If fault code C112502 is already present when the first quick test is carried out, check and process the fault code\(s\) in the ESP control unit \(N30/3\). Here too, the fault code can be ignored and deleted directly in the rear axle steering control unit \(N68/4\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10207196-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10207196-9999.pdf)

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

## Components

Transmission and driveline

## Trouble codes named

C1125

## Vehicles listed

- 2022 MERCEDES\-BENZ AMG EQS 53
- 2022 MERCEDES\-BENZ C 300
- 2022 MERCEDES\-BENZ EQS 450
- 2022 MERCEDES\-BENZ EQS 580
- 2022 MERCEDES\-BENZ S 500 4MATIC
- 2022 MERCEDES\-BENZ S 580 4MATIC
- 2022 MERCEDES\-MAYBACH S 680 4MATIC

JSON: [/v1/bulletins/10207196](/v1/bulletins/10207196)

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