Recall 10V-446 Insp. Brake Booster Vacuum Supply Line: Overview
SI B34 04 10Brakes
November 2010
Technical Service
This Service Information bulletin supersedes SI B34 04 10 dated November 2010.
PERFORM THE PROCEDURE OUTLINED IN THIS SERVICE INFORMATION ON ALL AFFECTED VEHICLES BEFORE CUSTOMER DELIVERY OR THE NEXT TIME THEY ARE IN THE SHOP FOR MAINTENANCE OR REPAIRS.
Under the National Traffic and Motor Vehicle Safety Act of 1966, as amended, if there has been a recall campaign, dealers must assure that all new vehicles and new items of replacement equipment are free of safety defects and comply with all applicable Federal Motor Vehicle Safety Standards at the time of delivery to the consumer. This means that dealers may not deliver new motor vehicles or new items of replacement equipment to consumers unless the safety defect or noncompliance has been remedied before delivery.
[NEW]The only change is the TREAD attachment.
[NEW]designates changes to this revision
SUBJECT
Recall Campaign 10V-446: Inspect Brake Booster Vacuum Supply Line
MODEL
E60 (5 Series) with N62 or N62TU engines produced from August 8th, 2003 to November 30th, 2009
E63 and E64 (6 Series) with N62 or N62TU engines produced from September 30th, 2003 to November 30th, 2009
E65 and E66 (7 Series including BMW ALPINA B7) with N62, N62TU or N73TU engines produced from October 23, 2001 to July 24th, 2008
SITUATION
Engine oil may enter the brake booster vacuum supply line via the brake vacuum pump and contaminate the brake booster, which may result in damage to the membrane. In such cases, the membrane can develop leaks which could lead to reduced or no brake power assistance. It is then still possible to slow and stop the vehicle by applying greater force on the brake pedal.
AFFECTED VEHICLES
This Recall Campaign involves 5 Series (545i and 550i) which were produced from 08/08/2003 to 11/30/2009; 6 Series (645i and 650i) produced from 09/30/2003 to 11/30/2009 and 7 Series (745i/iL, 750i/iL, 760i/iL and ALPINA B7) which were produced from 10/23/2001 to 07/24/2008.
In order to determine whether a specific vehicle has had this Recall. Campaign completed or is affected by this Recall Campaign, first check the B-pillar label for code number 580. If code number 580 has been punched out, the campaign has already been performed. If code number 580 has not been punched out, it will be necessary to utilize the "Service Menu" of DCSnet (Dealer Communication System) or the Key Reader. Based on the response of the system, either proceed with the corrective action or take no further action.
CORRECTION
The updated brake booster vacuum supply line with fluid check valve is to be installed in all applicable vehicles to eliminate future contamination. If oil contamination is found during the inspection, the brake master cylinder and brake booster must be replaced as well.
PARTS INFORMATION
IMPORTANT:
Prior to the brake booster installation make sure that all transportation packaging materials (e.g. yellow foam securing the push-rod inside booster cavity) are removed.
LABEL INSTRUCTIONS
This Recall Campaign has been assigned code number 580. After the vehicle has been checked and/or corrected, obtain a label (SD 92-380) and:
A. Emboss your BMW center warranty number in the middle of the label (1);
B. Punch out code number 580 (2), 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
ATTACHMENTS
B340410 - Owner Letter
B340410 - TREAD