Fault 118002 – Mixture Too Rich Sets During Winter With Cold Ambient Temperatures – 2014-2019 Mini

NHTSA ID Number: 10161583

Manufacturer Communication Number: M110117

Summary

The Service Engine Soon (MIL) light is on with the following fault stored in the Digital Motor Electronics (DME). In the situation being described the fault is only stored during the cold winter months along with the use of winter fuel.

 

12 Affected Products

Vehicles

MAKE MODEL YEAR
MINI CLUBMAN 2017
MINI COOPER 2014-2019
MINI COOPER S 2014-2017, 2019

SITUATION

The Service Engine Soon (MIL) light is on with the following fault stored in the Digital Motor Electronics (DME).

In the situation being described, the fault is only stored during the cold winter months along with the use of winter fuel.

Note: Various other causes for a rich mixture fault are possible and should not be overlooked.

 

CAUSE

  • DME software diagnostic is too sensitive
  • This situation is most likely to occur if the driving profile is one of frequent cold engine starts and/or primarily short distance trips (idle / low load operation) where full engine operating temperature is not reached.
  • Due to the lower engine oil temperatures crankcase vapors that contain a higher fuel content are not completely drawn off via the crankcase ventilation system.
  • A false DME adaptation routine could then lead to this fault being set.

 

 CORRECTION

  1. Check for rich mixture condition
  2. Program the vehicle with ISTA Next
  3. Replace the engine oil
  4. Inspect cylinder head cover and replace as needed
  5. Quality Certification I (QC1) vehicle procedure

 

PROCEDURE

Do not replace any parts unless a definite failure is identified during diagnosis.

Perform diagnosis using the latest version of ISTA Next.

  1. Check the current mixture adaptation:

Path: ECU function – DME / Diagnostic scan / 721 Mixture Adaptation

Note: Let the engine idle at operating temperature. If the mixture adaptation drops significantly below 1.0 it indicates a rich mixture condition.

  1. Replace the engine oil and filter on a warm engine.

Refer to SI M11 01 15: Engine Oil Quick Reference and Drain Plug Torque

Do not reset the CBS for engine oil service unless the oil service shows to be currently recommended or due on the key reader.

  1. Upgrade the vehicle software using ISTA Next 4.17.1x (became available late April 2019) to the appropriate level shown below:

Programming is only required if the integration level is earlier than the target level.

Note that ISTA Next will automatically reprogram and code all programmable control modules that do not have the latest software.

Always connect a MINI-approved battery charger/power supply (SIM04 08 09).

For information on programming and coding with ISTA, refer to CenterNet / TIS / Technical Documentation / Programming and Diagnostics / Programming Documentation.



SI M11 01 17

May 2019

https://www.nhtsa.gov/recalls?nhtsaId=10161583

https://static.nhtsa.gov/odi/tsbs/2019/MC-10161583-9999.pdf

Download (PDF, 174KB)


 

Introduction

The Online Service System (OSS) has been developed specifically for independent automotive workshops to provide an extensive range of resources. The following applications are available in the OSS:

ISTA Diagnosis Application

Vehicle diagnostics from the Z3/E36, with the BMW ICOM, or with a J2534 pass-thru tool (from model year 1996).

  • Fault Code Diagnosis
  • Test Plans
  • Repair Instructions (E30 or higher)
  • Technical Data
  • Wiring diagrams

Web ISTA Information Application

WebISTA has been developed to provide an information only application for users that do not require all of the services included in the ISTA diagnostics application.

  • Repair Instructions (E30 or higher)
  • Technical Data
  • Tightening torques
  • Wiring diagrams

You can search using document title, document number and subject areas as the search criteria. The desired information is displayed by means of graphics and explanatory text.

ISTA/P Online – Control Module Reprogramming

With ISTA/P you can reprogram the onboard control modules that are capable of software reprogramming.  For ISTA/P, a data interface, a power supply and an Internet connection are required. The data interface can be a BMW Group ICOM interface or a “Pass-Thru Tool (PTT)” that fulfills the requirements of the SAE J2534 standard.

What is needed to diagnose and program with the BMW OSS?

The OSS consists of a desktop or laptop PC connected to BMW over the Internet. To connect to the vehicle you can use the BMW authorized diagnostic interface “integrated communication optical module (ICOM)” or use a J2534 “Pass Thru Tool (PTT)”.

CarDAQ-Plus 2 Diagnostic Code Reader and J2534 Programming Tool

Drew Technologies (DRWCDPLUSKIT) CarDAQ-Plus J2534 Flash Reprogramming Kit

CarDAQ-M Modular PassThru J2534 Vehicle Reflash Hardware
MAXIFLASH PRO (ALT-MF2534)
VSI J2534 ECU Reprogrammer & Diagnostic Adapter
Dearborn d-Bridge Adapter J2534 OBDII Engineering Tool
JDiag Elite II Pro J2534 ECU Car Dash Automotive Diagnostic Programming Tool

 

Note

Connection to OSS works only on PCs where no proxy connections are used.

For information about vehicle reprogramming and diagnostics using J2534 click here.

 

 

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Last update on 2019-09-16 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2019-09-16 / Affiliate links / Images from Amazon Product Advertising API

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