Recall - Idle Control Unit Exchange
86bmw10GROUP 13 Fuel System
Bulletin Number 13 04 86 (1159) Page 1 of 5
Montvale, NJ May 1986
Technical Dept.
SUBJECT: Voluntary Exhaust Emissions Recall Campaign No. 86E-A01
MODELS: 325e, 528e, 533i, 633CSi, 733i (produced prior to April 1986)
BMW of North America will initiate an emission-related recall campaign to correct vehicles that may be in noncompliance with Federal and California Emission Standards.
The campaign consists of the exchange of the idle control unit. Customer notification of all affected vehicles will be conducted as soon as sufficient parts availability has been secured. In the interim, exchange idle control units on affected vehicles during regular service visits.
This Service Information Bulletin outlines the specifics for implementation of this campaign.
Vehicles Affected
Model Chassis No. Ranges
325e/2 100 0001 - 101 0000
950 5000 - 951 4999
962 5000
- 963 4999
967 0000 - 968 5042
325eA/2 101 0001 - 101 5000
121 0001 - 122 0721
325e/4 069 5001 - 070 0000
098 5001 - 099 0000
150 5001 - 150 8674
325eA/4 070 0001 - 070 5000
099 0001 - 099 5000
170 0001 - 170 2864
528e 795 0000 - 795 9999
920 0000 - 920 4999
935 5000 - 935 9999
965 0000 - 965 1959
528eA 796 0000 - 796 9999
920 5000 - 920 9999
927 0000 -- 927 4999
954 5000 - 954 9999
965 5000 - 966 0999
970 0000 - 970 3865
533i 104 5001 - 104 9000
119 0001 - 119 4409
533iA 104 9001 - 105 0000
922 0000 - 922 1900
633CSi 750 5000 - 750 5949
672 5001 - 672 8592
633CSiA 751 0000 - 751 0754
699 5000 - 699 7531
733i 735 5000 - 735 6201
739 5000 - 739 8423
733iA 736 5000 - 736 8042
785 0000 - 785 4999
928 0000 - 928 4999
947 4000 - 947 7097
DESCRIPTION OF CORRECTIVE ACTION
Due to possible cracking of internal solder joints in the idle control unit, idle speed fluctuations might occur which influence the emissions.
All idle control units have been inspected and resoldered to assure proper operation. All units produced from the 46th week, 1985 or units with green tape at the base of the unit have been corrected.
Parts
Required: Models: 325e, 528e
BMW P/N 13 41 9 058 750 (ID # on label: 1 286 133)
Models: 533i, 633CSi, 733i
BMW P/N 13 41 9 058 751 (ID # on label: 1 286 134)
CORRECTIVE PROCEDURE
1. Inspect existing idle control unit located in the glove box and determine if the unit has:
a) a green tape stripe; or
b) production date code 46 85 or later, (date code may also read 85 46).
If existing unit does not meet one of these conditions, it must be exchanged for a correct unit.
NOTE: Units with green tape are OK regardless of the date on the label.
2. In addition to checking for the idle control unit, the female pin sockets for the idle control unit should be checked for tightness.
Using a 2.5 mm (#40) drill bit, check for a snug fit of the female pin sockets. If any loose pin sockets are found, remove the back half of the connector block (keeping in mind the original locations of the pin sockets). Remove the female socket pins and slightly bend the tabs of the pin sockets as shown in the sketch below.
3. Reinstall pin sockets in original location as shown in the sketch below.
Location of pin sockets in plug for idle control unit.
4. Snap the back half of the connector block back into position. Turn on ignition and test electrical power supply to transmission related pin sockets as listed below:
325e/A (shift lever in P or N - Automatic Transmission Only) Power on pin socket 2 and pin socket 7.
528e, 533i, 633CSi, 733i Power on pin socket 2 and pin socket 7.
528eA, 533iA, 633CSiA, 733iA (shift lever in P) Power on pin socket 2 and pin socket 8.
528eA, 533iA, 633CSiA, 733iA (shift lever in N) Power on pin socket 2 and pin socket 7.
If there is a mistake in power supply, check original location of the pin sockets again.
5. Reattach connector block to idle control unit.
6. To assure positive retention of connector block to idle control unit, secure the connector block to the control unit using a nylon tie strap.
Warranty
Status: Reimbursement for the required parts and labor required to perform this recall campaign will be provided through CAMPAIGN ENTRY processing.
This repair is reimburseable with no limitation on age or mileage of vehicle.
The work package information for CAMPAIGN ENTRY is shown below:
Description: Inspection of Idle Control Unit and corrective action taken.
Defect code: 00 00 13 66 00
Work Package #1: All Models-Inspect (ONLY) Control Unit and Plug connections.
Labor: 2 Flat Rate Units
Work Package 2-5: Replacement of idle control unit and checking connector plug: