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SI B11 15 16
Engine

August 2016
Technical Service

B58 ENGINE: OIL LEAK FROM TURBOCHARGER
MODEL
F30 (3 Series
Sedan)

F32 (4 Series
Coupe)

F33 (4 Series
Convertible)

G12 (7
Series)

With B58M engine

SITUATION
Engine oil (1) can be seen leaking from the bottom of the turbocharger near the band clamp (2).

CAUSE
The turbocharger band clamp is loose.

CORRECTION
Tighten the turbocharger band clamp.

PROCEDURE
Warning: Hot surfaces. Risk of burns. Only perform work on cooled components.

1. Remove the under body cover as per repair instruction 51 47 490 “Removing and
installing/replacing underbody protection”
2. Inspect the oil supply and return lines for leakage, if not leaking continue with this procedure.

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3. Remove the air filter box and locate the band
clamp fastener (1).
You will need the following tools:
- 10 mm socket
- Torque wrench capable of 8.5 Nm
- T30 bit and a suitable holding tool. See next
photo

4. Use a suitable tool to hold the T30 side of the
band clamp fastener.

5. Hold the T30 stationary (1) and torque the 10 mm
nut (2) to 8.5 Nm.

6. When the torque procedure is complete, measure
the gap in the band clamp. The gap should NOT
be less than 0.5 mm.
A = > 0.5 mm
If the clamp gap is less than 0.5 mm then the
turbocharger will need replacement.
Turbocharger replacement requires TC
Authorization.

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Clean the engine oil residue with a suitable
solvent and wipe it dry with a shop towel. Always
wear eye and skin protection.
Reassemble the vehicle.

7. If the engine oil leak is not resolved then the complete turbocharger will need to be replaced.
Turbocharger replacement requires TC Authorization.

WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light
Trucks.

Defect Code:

11 65 90 48 00

Labor Operation:

Labor Allowance:

Description:

00 64 140

Refer to KSD2

Torque the band clamp
fastener (Main work)

Refer to KSD2

Torque the band clamp
fastener (Plus work –
Vehicle is already in the
workshop)

Labor Operation:

Labor Allowance:

Description:

00 64 141

Refer to KSD2

Torque the band clamp
fastener and replace the
turbocharger (Main work)

Refer to KSD2

Torque the band clamp
fastener and replace the
turbocharger (Plus work
– Vehicle is already in the
workshop)

Or:

00 64 663

Or:

Or:

00 64 664

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And, if necessary:
Sublet – Bulk Materials

Sublet Code 4

See sublet reimbursement
calculation below

Reimbursement for the
repair-related bulk
materials (BMW part
number(s), please do not
use the part numbers for
claim submission)

Sublet reimbursement calculation for claiming the “used quantities” of repair-related bulk materials
(BMW part numbers) is at dealer net plus your center’s handling.
Enter this material cost in sublet and itemize the amount on the repair order and in claim comment
section.
Overlapping Labor – Other Repairs
If invoicing KSD2 flat rate labor operation codes for other repair work results in overlapping labor,
invoice work time (WT) labor operation 00 50 000 instead for the additional labor time needed
(FRUs minus the overlapping labor).
Work time labor operation code 00 50 000 is not considered a Main labor operation.
Eligible other repair work that will be claimed under a difference defect code using this labor
operation requires a separate punch time.
On the repair order and in the claim comment section, please identify the labor operations labor
operation code(s) “00 50 000” replaces and itemize the claimed FRU amount.
[ Copyright ©2016 BMW of North America, Inc. ]

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