XB1G - Cylinder 1 Misfire (SI B12 10 21)
Publication date: 2022-04-07Reference number: SI B12 10 21
XB1G - CYLINDER 1 MISFIRE
TECHNICAL SERVICE BULLETIN
| BMW: | G01 X3 xDrive30e Sports Activity Vehicle (SAV); G20 330e Sedan; G30 540e Sedan |
SERVICE INFORMATION
This Service Information Bulletin (Revision 1) replaces SI B12 10 21 November, 2021.
What's New:
- Procedure section
SITUATION
The customer complains that under moderate throttle application or on deceleration after throttle application, a Malfunction Indicator Lamp (MIL) is displayed in the instrument cluster.
Upon performing a vehicle test with ISTA, one or more of the fault codes below are stored in the Digital Motor Electronics (DME):
Fault stored in all cases:
| 140110 | Combustion misfire, cylinder 1: detected |
Fault(s) stored occasionally:
| 140210 | Combustion misfire, cylinder 2: detected |
| 140310 | Combustion misfire, cylinder 3: detected |
| 140410 | Combustion misfire, cylinder 4: detected |
CAUSE
DME Software.
CORRECTION
Program the vehicle.
PROCEDURE
Program the complete vehicle with ISTA 4.32.1x (I-Level 21-07-562; released mid-October 2021) or higher.
Note that ISTA will automatically reprogram and code all programmable control modules that do not have the latest software.
Always connect a BMW-approved battery charger/power supply (SI B04 23 10 ) when performing programming.
For information on programming and coding with ISTA, refer to Center Net/TIS/Technical Documentation/Programming and Diagnostics/Programming Documentation.
CLAIM INFORMATION
During this workshop visit, the affected vehicle may show one or more programming and encoding Technical Campaign repairs open, the programming and encoding procedure may only be invoiced one time.
Select one of the se open Technical Campaigns to perform and submit for updating the vehicle's software to the required I-level or higher.
Please be sure to perform any additional before and/or after work (including attaching labels) as required by the open campaigns on the vehicle. Close any remaining open programming and encoding Campaign repairs as outlined in the corresponding Service Information Bulletin.
Only if the above situation does not apply, the BMW software solution is the n:
Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks, or the BMW Certified Pre-Owned Program as described below.
| Defect Code: | 1042033800 | Throttle response with hot engine Shaking |
Refer to AIR for the corresponding flat rate unit (FRU) allowances.
| Labor Operation | Description | Labor Allowance |
|---|---|---|
| 00 00 006 | Performing vehicle test (with vehicle diagnosis system - checking faults) (Main work) | Refer to AIR |
| Or: | ||
| 00 00 556 | Performing vehicle test (with vehicle diagnosis system - checking faults) (Plus work) | Refer to AIR |
| And: | ||
| 61 21 528 | Support voltage of the vehicle electrical system/recharge vehicle electrical system battery | Refer to AIR |
| And | ||
| 61 00 730 | Programming/encoding control unit(s) | Refer to AIR |
If you are using a Main labor code for another repair, use the Plus code labor operation 00 00 556 instead of00 00 006, or exclude (including 61 21 528) when the Vehicle Test is included in another repair.
PROGRAMMING AND ENCODING - VEHICLE CONTROL UNITS (RO AND CLAIM COMMENTS REQUIRED)
This procedure automatically reprograms and encodes any vehicle control modules that do not have the latest software I-level.
If one or more control modules fail during the reprogramming procedure, claim the required consequential repair work procedures to address this issue (including performing the IRAP Control Unit Recovery first as required, refer to the SIB in AIR) under the Defect Code in this bulletin with the labor operations in AIR that apply.
Please explain the additional work procedures that were performed (The why and the what) on the repair order and in the claim comments.
For covered repairs that address control module failures that occurred prior to performing this reprogramming procedure, claim this work with the Defect Code and labor operations (including diagnosis) in AIR that apply.
Based on which one applies to your center, please refer to SI B01 01 20 or B01 07 20 for the applicable procedure for documenting, claiming, and explaining, on the RO and in the claim comments, your diagnosis work time (WT), job/repair work time (WT), and the vehicle repairs your center performed, unless otherwise required by State law.
QUESTIONS REGARDING THIS BULLETIN
| Technical inquiries | Submit feedback at the top of this bulletin |
| Warranty inquiries | Please contact the Warranty department by either using the Live Chat that's available in the Warranty Documentation Portal or through IDS by selecting Coverage, Policy, Coding Questions and Mileage Corrections |
| Parts inquiries | Submit an IDS ticket to the Parts Department |