Campaign - Electronic Throttle EML System Update: Overview
Group: 12Engine Electrical Systems
Bulletin Number
12 08 96
Woodcliff Lake, NJ
October 1996
Product Engineering
PERFORM THE PROCEDURE OUTLINED IN THIS SERVICE INFORMATION ON ALL AFFECTED VEHICLES THE NEXT TIME THEY ARE IN THE SHOP FOR MAINTENANCE OR REPAIRS.
SUBJECT:
E31 - M73 EML System updates
MODEL:
850CiA with M73 engine produced 1/95 - 6/96
Situation:
The "Check Engine" lamp can be illuminated, check control or MID may display "Engine Fail-safe Program" and any of the following faults may be set in the fault memory of the EML control module:
^ 138, 139, 140, 141, 142, 143, 144, 145
^ 44, 45, 46, 47, 48, 49, 50, 51
Affected Vehicles:
This service action involves E31 vehicles with M73 engines produced up to 6/96.
In order to determine if a specific vehicle is affected by this Service Action, it will be necessary to utilize the "Service Menu" of the DCS (Dealer Communication System). Based on the response of the system, either proceed with the corrective action or take no further action.
The Chassis Number Ranges listed below are only for informational purposes and are not to be considered as the only deciding factor
Model Chassis Number Ranges
850CiA CD05000 - CD05220
Correction:
Based on the defect code stated on DCS for all affected vehicles:
^ Both throttle housing assemblies (DK motors) may need to be checked/replaced to insure that the latest version is installed.
^ The PWG wiring harness will need to be replaced.
The procedure indicated below must be followed in order to determine which repair(s) need to be made.
Procedure:
1. Determine which defect codes apply to the vehicle.
2. Refer to the table to determine which specific section of the procedure applies to the vehicle, based on the defect code stated on DCS:
3. After completing the installation(s), certain adaptive functions for the EML system must be reset. Refer to section C of the procedure.
Parts Information:
The following part numbers will need to be obtained if it is determined that the latest versions are not installed:
Description Part Number
Throttle Housing 13 54 1 745 207
Assembly
Throttle Body Gasket 11 61 1 708 475
E31 PWG Bypass Harness 61 12 8 375 702
Service Action Label Instructions:
This Service Action has been assigned code number 171. After the vehicle has been checked, and corrected if necessary, obtain a label (SD 92-070) and:
a) emboss your BMW dealer warranty number in the middle of the label (1);
b) punch out code number 171 printed on the label and,
c) affix the label to the B pillar as shown:
If the vehicle already has a label from a previous Service Action/Recall Campaign, affix the new label next to the old one. Do not affix one label on top of another one because a number from an underlying label could appear in the punched-out hole of the new label.
Warranty Information:
Parts and labor will be reimbursable under the terms of the applicable BMW Emissions Warranty.
Defect Code: 00 13 04 01 00
Work Package # 1: Inspect both throttle housing assemblies
Models: 850CiA
Labor Operation: 00 51 805
Labor Allowance: 1 FRU
Work Package # 2: Inspect, replace both throttle housing
assemblies, reset EML adaptation values.
Models: 850CiA
Labor Operation: 00 51 806
Labor Allowance: 8 FRU
Parts Allowance: 13 54 1 745 207 Qty = 2
11 61 1 708 475 Qty = 2
Work Package # 3: Inspect both and replace one throttle housing
assembly, and reset EML adaptation values.
Models: 850CiA
Labor Operation: 00 51 825
Labor Allowance: 5 FRU
Parts Allowance: 13 54 1 745 207 Qty = 1
11 61 1 708 475 Qty = 1
Defect Code: 00 12 06 01 00
Work Package # 1: Install bypass harness and reset EML
adaptation values.
Models: 850CiA
Labor Operation: 00 51 184
Labor Allowance: 38 FRU
Parts Allowance: 61 12 8 375 702 Qty = 1