B110208

Service Bulletin Details

Public Details for: B110208

Power reduction fC2A82 intake vanos and/or fc2 a87 exhaust vanos camshaft fault: the "service engine soon" (mil) lamp is illuminated and engine power reduction is perceived. This situation can occur after driving for some time with the engi


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Models from 2003
2003 BMW Z4
5/5/2020
11 02 08_Power Reduction, FC2A82 Intake VANOS and/or FC2 A87 Exhaust VANOS Camshaft Fault
SIB 11 02 08
Power Reduction, FC2A82 Intake VANOS and/or FC2 A87 Exhaust
VANOS Camshaft Fault
This Service Information bulletin supersedes SI B11 02 08 dated June 2011.
2020-04-21
MODEL
E90, E91, E92 and
E90 and E91 with
E82 and E88 with
E93 with N51, N52K and
N52 engine produced
N51, N52K and N54
N54 engines produced from
engines produced from from 3/2005 to 6/2006
7/2006 to 1/2010
1/2008 to 1/2010
E60 and E61 with
E83 with N52K
E70 with N52K
N52, N52K and N54
engine produced from
engine produced from
engines produced from
9/2006 to 1/2010
10/2006 to 1/2010
3/2005 to 1/2010
E85 and E86
with N52 engine
produced from
1/2006 to 1/2010
E71 with
N54 engine
produced from
1/2008 to 1/2010
F01 and F02 with
N54 engine from start of
production to 1/2010
SITUATION
The “Service Engine Soon” (MIL) lamp is illuminated and engine power reduction is
perceived. This situation can occur after driving for some time with the engine at full operating
temperature. If the ignition is cycled, the engine then usually performs normally.
The following faults are stored in the DME:
2A82 VANOS intake – stiff; jammed mechanically
2A87 VANOS exhaust – stiff; jammed mechanically
130108 VANOS intake: control fault, position not reached
130308 VANOS exhaust: control fault, position not reached
For the N54 engine, the following secondary faults may also be stored:
120408 Charge-air pressure control, cut-out: Boost pressure accumulation blocked
3100 Boost-pressure control, deactivation – boost-pressure buildup prohibited
CAUSE
The VANOS faults can be caused by an insufficient oil pressure supply to the inlet VANOS
adjustment unit. To effectively move the camshafts to the target positions in the specified time and
under all engine conditions, sufficient oil pressure supply to the VANOS control pistons must always
be available.
If engine operation requires the VANOS system to quickly advance or retard the intake or exhaust
camshaft, faults may be stored if the camshaft is “late”, or does not reach the target position. In this
situation, engine power may be reduced and a check control message is displayed.
The consequential fault 3100 or 120408 can also be set in the DME fault memory as well.
PROCEDURE
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11 02 08_Power Reduction, FC2A82 Intake VANOS and/or FC2 A87 Exhaust VANOS Camshaft Fault
1. Perform all applicable test plans completely for the faults stored.
A mechanical restriction or electrical failure of the VANOS solenoid and/or the electrical circuit
can cause insufficient oil supply to the VANOS assemblies as well.
If the completed test plans results are inconclusive, then proceed to step 2.
2. The oil filter cap insert may have been inadvertently removed during the
vehicle’s last oil service. If this insert is not installed, it will result in nonfiltered engine oil being supplied to the engine, thus possibly clogging or
damaging the VANOS solenoids.
If the oil filter cap insert is found to be missing, the entire oil filter
housing cap must be replaced (refer to the EPC).
Note: Repairs related to step 2 are not considered a defect in
materials or workmanship.
3.
Replace both VANOS solenoids, change the engine oil and filter, and reset the service
data only when applicable, as outlined in the Warranty Information section. Drive the
vehicle to verify effectiveness.
INFORMATION ONLY - CAMSHAFT BEARING LEDGE WEAR ASSESSMENT
While performing the test plan for the VANOS faults stored (ABL-DIT-B1214_NGNWA or E), the
inspection of the camshaft hook ring seals is advised in “step 5 of these test plans”.
Below are detailed illustrations of worn camshaft bearing ledges, and the acceptable wear of the
camshaft bearing ledge.
1. Camshaft bearing ledge
2. Intake camshaft
3. Hook ring seals
Note the deep grooves worn into the camshaft bearing ledge by the
camshaft hook ring seals. The camshaft bearing ledge is worn.
See the magnification call-out in the illustration for a detailed
description of the wear.
Acceptable camshaft bearing ledge – minor gray wear marks from
the rotation of the camshaft are normal. If deep groves are not apparent, the
camshaft bearing ledge is acceptable and should not be replaced.
Do not replace parts that are not worn.
IMPORTANT: The applicable test plans for the faults stated in this bulletin may advise
replacement of the entire intake or exhaust camshaft. This statement is an error, and will be
corrected with ISTA/D 2.34.0. Do not replace the entire intake or exhaust camshaft; if
applicable, only replace the bearing ledge and rectangular hook rings on the affected
camshaft for the VANOS fault stored in DME Memory.
PARTS INFORMATION
Replace the VANOS solenoids, engine oil and oil filter only.
Part Number
Description
11 36 7 585 425
VANOS solenoid
11 42 7 566 327
Oil filter
Quantity
2
1
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11 02 08_Power Reduction, FC2A82 Intake VANOS and/or FC2 A87 Exhaust VANOS Camshaft Fault
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle/SAV Limited Warranty or the BMW Certified PreOwned Program (For all, except for repairs that result from the issue identified in procedure 2).
Replace the VANOS solenoids, engine oil and oil filter only:
Defect Code:
11 13 93 76 00
Labor Operation:
Labor Allowance:
00 00 006
Refer to KSD2
Description:
Performing “vehicle test” (with vehicle
diagnosis system – checking faults)
and if necessary, also
61 21 528
Refer to KSD2
and if necessary, also
Charging battery
61 00 006
Work Time (WT)
Performing vehicle diagnosis – test
module
11 36 655
and
Refer to KSD
Replacing both VANOS solenoid valves
Perform engine oil service and reset the
00 99 000
4 FRU
service data when applicable (see
below)
Labor operation code 00 00 006 is a main labor operation, if you are using a main labor code for
another repair; use the plus code labor operation 00 00 556 instead.
Even though work time labor operation code 61 00 006 ends in “006,” it is not considered a Main
labor operation.
Work time (WT) labor operation 61 00 006 requires an individual punch time.
Even though labor operation code 00 99 000 ends in “000”; it has a designated FRU allowance, and
as described above, it is not considered a main labor operation.
CBS Vehicles - E82, E88, E90, E91, E92, E93, E60, E61 E70, E71, F01 and F02:
When the ISPA Light CBS data displays the engine oil service as “Recommended” or “Due”, reset the
CBS data when changing the engine oil with this repair.
Important CBS note:
Due to a calculation issue, some of the vehicles listed above may have their their “Remaining” or
“Due in” miles to the engine oil service at or below the “Priority Value” of 2000 miles; however the
Service Status does not show “Recommended.” If this situation exits, reset the CBS data after
performing this repair.
SIA Vehicles- E83, E85 and E86:
SIA vehicles do not display a recommended period; it only shows the engine oil services or
inspections as “Due”.
When the forecasted remaining miles to the next “OIL SERVICE" or "INSPECTION" is 2,000 miles or
less, reset the SIA data after performing this repair.
Note for all vehicles:
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11 02 08_Power Reduction, FC2A82 Intake VANOS and/or FC2 A87 Exhaust VANOS Camshaft Fault
When resetting the service data procedure applies, please address any “connected” maintenance
services items that are also required to be performed, invoice these additional maintenance items
separately.
Other Repairs
If performing the ISTA diagnostics and the related test plans results with eligible and covered work,
claim this work with the applicable defect code and labor operations listed in KSD2.
Note: Please follow any TeileClearing or Diagcode requirements that may apply to this additional
work.
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