NHTSA ID Number: 10201151
Manufacturer Communication Number: M010521
TSB/Document Date: 2021-09-07
Summary
During the vehicle's operational life, normal engine oil seepage or sweating, in addition to accumulated road dust, dirt and grime in the engine compartment can give an appearance that there is an active engine oil leak. This is further exaggerated by residual oil that remains on the engine assembly after maintenance services are performed, for example, oil filter changes, engine oil top-offs, etc. If this visual appearance of accumulated oil on the engine assembly is misinterpreted as an active engine oil leak, then unnecessary gasket repairs/replacements will result.
8/3/2021
01 05 21_EXTERNAL ENGINE OIL LEAKS AND REPAIRS
SIM 01 05 21
EXTERNAL ENGINE OIL LEAKS AND REPAIRS
2021-07-14
MODEL
All
SITUATION
During the vehicle’s operational life, normal engine oil seepage or sweating, in addition to accumulated road
dust, dirt and grime in the engine compartment can give an appearance that there is an active engine oil
leak.
This is further exaggerated by residual oil that remains on the engine assembly after maintenance services
are performed, for example, oil filter changes, engine oil top-offs, etc.
If this visual appearance of accumulated oil on the engine assembly is misinterpreted as an active engine oil
leak, then unnecessary gasket repairs/replacements will result.
CAUSE
The purpose of this bulletin is to provide your workshop with the information and a procedure that will help
you in identifying:
Engine oil leaks (that do require a repair); vs.
Slight engine oil seepage (that does not require a repair).
CORRECTION
Follow the instructions in the PROCEDURE section.
PROCEDURE
Refer to Attachment (1).
PARTS INFORMATION
When a repair is necessary, please refer to the Electronic Parts Catalog (ETK/EPC), using the customer’s
VIN to locate the applicable replacement part numbers.
WARRANTY INFORMATION
This Service Information bulletin provides technical, diagnostic, and repair-related information.
Eligible and Covered Work/Repairs
When used to repair a verified defect in materials or workmanship, the repair procedure information
provided in this bulletin is covered under the terms of the MINI
New Passenger Car Limited Warranty MINI
Certified Pre-Owned Program.
To submit a claim, please following the established and applicable warranty policy and procedures
(Labor/Part/Sublet – bulk materials) that apply to the repair being performed.
Refer to AIR for the corresponding defect code, flat rate labor operations (including diagnosis) and flat rate
unit (FRU) allowances.
Only one Main labor operation code can be claimed per repair visit.
Based on which one applies to your dealer, please refer to SI M01 01 20 or M01 04 20 for claiming your
diagnosis work time, job/repair work time (WT), RO/Claim WT and/or repair explanation procedures, unless
Copyright ©2021 MINI USA, a division of BMW of North America, LLC. All Rights Reserved
1/2
8/3/2021
01 05 21_EXTERNAL ENGINE OIL LEAKS AND REPAIRS
otherwise required by State law.
QUESTIONS REGARDING THIS BULLETIN
Technical inquiries
Warranty inquiries
Parts inquiries
Submit feedback at the top of this bulletin
Please contact the Warranty department by either using the Live Chat that’s
available in the Warranty Documentation Portal or through IDS by selecting
Coverage, Policy, Coding Questions and Mileage Corrections
Submit an IDS ticket to the Parts Department
Supporting Materials
picture_as_pdf M01 05 21 Attachment (1).pdf
Copyright ©2021 MINI USA, a division of BMW of North America, LLC. All Rights Reserved
2/2
Attachment 1 to SI M01 05 21
July 2021
EXTERNAL ENGINE OIL LEAKS AND REPAIRS
PROCEDURE
A. No repair is necessary.
Light external engine oil accumulation: Due to sweating – this is not an active oil leak, and no
repair is necessary.
Example: A
Cylinder Head Cover Gasket
Light external engine oil accumulation
•
No repair is necessary.
Example: A
Oil Filter Housing and Heat Exchanger
Light external engine oil accumulation
•
No repair is necessary.
Example: A
Heat Exchanger
Light external engine oil accumulation
•
1
No repair is necessary.
Attachment 1 to SI M01 05 21
July 2021
Example: A
Front Cover
Light external engine oil accumulation
•
No repair is necessary.
Example: A
Front Cover
Light external engine oil accumulation
•
No repair is necessary.
Example: A
Bell Housing
Light external engine oil accumulation
•
2
No repair is necessary.
Attachment 1 to SI M01 05 21
July 2021
B. Repair is necessary.
Medium to large external engine oil accumulation: Together with pooling, dripping and
spotting – this is an active engine oil leak, and a repair is necessary.
Example: B
Cylinder Head Cover Gasket
Medium to large external engine oil
accumulation
•
A repair is necessary.
Example: B
Front Lower Timing Cover Gasket
Medium to large external engine oil
accumulation
•
3
A repair is necessary.
Attachment 1 to SI M01 05 21
July 2021
Example: B
B46M Turbo Inlet Pipe
Medium to large external engine oil
accumulation
•
A repair is necessary.
Example: B
Oil Pan Gasket
Medium to large external engine oil
accumulation
•
A repair is necessary.
Example: B
B36M Timing Cover
Medium to large external engine oil
accumulation
•
4
A repair is necessary.
- 3X Stronger than the leading full synthetic*
- 10X Better high stress performance**
- 20,000 miles between oil changes***
- Viscosity breakdown as measured in Kurt Orbahn test on 5W...
- As measured in Seq IX test under high load/torque conditions...
- Phosphorus Replacement Technology to help extend the life of...
- Reduces leaks, oil burnoff and power robbing deposits
- 15,000 miles between oil changes*
- Meets or exceeds the following specifications: API SP/SN...
- Or one year, whichever comes first
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TSB/Document ID: M010521
Replacement Service Bulletin Number:
MFR Communication Date: 2021-07-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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