Drive Belt - Noise/Premature Wear
Group 11Engine
Bulletin Number
11 05 96
Woodcliff Lake, NJ
July 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:
Idler Pulley for Drive Belt
MODEL:
E36 - 328iA with M52 Engine
Situation:
The drive belt idler pulley which dampens the oscillation of the poly-V drive belt during engine operation was not installed during production. This may, under certain conditions, cause a belt noise and premature wear on the main poly-V belt which drives the water pump, power steering pump and generator.
Vehicles Affected:
This Service Action involves E36 vehicles with M52 engines which were produced from 3/95-1/96.
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
328iA LB30025 - LB30670
Correction:
Install the drive belt idler pulley on all affected vehicles.
Procedure:
Remove the drive belt tensioner pulley cap.
Relieve tension on the drive belt and remove from generator pulley.
Note:
If the vehicle mileage is greater than 60 miles, the drive belt must be replaced as outlined in the repair manual (group 11).
Remove the upper generator mounting bolt.
Install the new upper generator mounting bolt with idler pulley.
Note:
The tab on the back side of the pulley hub must be aligned with the notch in the generator bracket.
Generator mounting bolt torque = 42 +/- 5 Nm (31 +/- 3.5 ft. lbs.)
Reinstall the drive belt as shown.
Reinstall the drive belt tensioner pulley cap and the new idler pulley cap.
Parts Information:
Part Number Qty. Description
11 28 1 738 605 1 Idler Pulley
11 28 1 730 349 1 Cap
07 11 9 921 536 1 M10x150 Bolt
11 28 1 427 250 1 Drive Belt
Service Action Label Instructions:
This Service Action has been assigned code number 167 After the vehicle has been checked, and corrected it necessary, obtain a label (SD92-070) and:
a) emboss your BMW dealer warranty number in the middle of the label (1);
b) punch out code number 167 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:
Covered under the terms of the BMW New Car Limited Warranty. Reimbursement for this Service Action will be provided through Campaign Entry.
Special Defect Code: 00 11 03 01 00
Work Package # 1: Install idler pulley (belt replacement not necessary).
Labor Operation: 00 51 799
Labor Allowance: 4FRU
Part Allowance: Part Number Quantity
11 28 1 738 605 1
11 28 1 730 349 1
07 11 9 921 536 1
Work Package # 2: Install idler pulley and replace belt.
Labor Operation: 00 51 800
Labor Allowance: 6FRU
Part Allowance: Part Number Quantity
11 28 1 738 605 1
11 28 1 730 349 1
07 11 9 921 536 1
11 28 1 427 250 1