Recall 10V-446 Insp. Brake Booster Vacuum Supply Line
SI B34 04 10
Brakes
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.
2010 BMW 550i Sedan (E60) V8-4.8L (N62TU) Page 444
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.
2010 BMW 550i Sedan (E60) V8-4.8L (N62TU) Page 445
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
2010 BMW 550i Sedan (E60) V8-4.8L (N62TU) Page 446
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.
2010 BMW 550i Sedan (E60) V8-4.8L (N62TU) Page 447
WARRANTY INFORMATION
ATTACHMENTS
2010 BMW 550i Sedan (E60) V8-4.8L (N62TU) Page 448
B340410 - Owner Letter
2010 BMW 550i Sedan (E60) V8-4.8L (N62TU) Page 449
B340410 - TREAD
Procedure
PROCEDURE
1. Remove the brake booster vacuum supply line (3) together with the non-return valve (2) from the brake booster (1).
2010 BMW 550i Sedan (E60) V8-4.8L (N62TU) Page 450
2. Check the brake booster vacuum supply line at the non-return valve upstream from the brake booster for contamination of oil. Insert a tightly
rolled up corner of a non-reusable lint free white shop towel (see arrow) into the non-return valve (2). If the towel does not indicate any engine oil
residue, proceed to step 4.
3. If the line exhibits contamination with engine oil, proceed to step 5.
4. Replace the following components only if oil contamination is NOT found. Refer to the applicable parts list for each model.
^ Vacuum supply line and clamp. Refer to Repair Instruction REP 11 66 000 Removing and installing vacuum pump (vacuum pipe and clamp
installation).
5. Replace the following components only if oil contamination is found. Refer to the applicable parts list for each model.
^ Brake master cylinder and 0-ring. Refer to Repair Instruction REP 34 31 505 Removing and installing or replacing brake master cylinder.
^ Brake servo unit and seal. Refer to Repair Instruction REP 34 33 505 Removing and installing or replacing brake booster.
^ Vacuum supply line and clamp. Refer to Repair Instruction REP 11 66 000 Removing and installing vacuum pump (vacuum pipe and clamp
