NHTSA ID Number: 10135712
Manufacturer Communication Number: LI18.30-N-056338
TSB/Document Date: 2018-05-07
Summary
Traces of oil in area of oil cooler (inner V) on engine 642
Traces of oil in area of oil cooler (inner V) on engine 642
Topic number
LI18.30-N-056338
Version
4
Design group
18.30 Oil cooling system
Date
05-27-2016
Validity
Model 639 with engine 642
Model 906 with engine 642
Reason for change
Edit to remedy
Reason for block
Complaint:
- Traces of oil in area of oil cooler (inner V) on engine 642
- Traces of oil at drain points of inner V
Cause:
1- Oil leak from the Turbocharger Inlet Seal (175). See attachement "OM 642 Turbocharger.jpg"
2- Seals between engine block
and oil cooler may be leaking due to incorrect installation.
Remedy:
1- Verify oil is not leaking from the Turbocharger Inlet Seal (175). See attachement "OM 642 Turbocharger.jpg"
2- Reference Service Bulletin V-B-09.00/01 "Operations in Clean Air Line Area"
3- Remove Oil Cooler; refer to WIS document "AR18.30-S-6840SE."
NOTE: Do not remove any parts until you drain all the coolant. Refer to WIS document "AR20.00-D-1140SD." If you
do not drain the coolant and remove the oil cooler, coolant will leak into the oil passages and may cause engine damage.
4- Before removing oil cooler, clean the area around the outside of the oil cooler to enure all debris has been removed. See attachement "Oil Cooler Top.jpg"
Note: Failure to do so may result in debris or foreign objects entering the engine causing engine problems.
5- When replacing the oil cooler O-ring seals, ensure the new part A 642 188 04 80 is installed. See attachment
"new_gasket.jpg."
6- Clean residual oil around oil cooler passages in the top of the engine block.
Note: When cleaning, it is essential to start from the center of the hole and wipe outward as debris or foreign objects
may enter the hole and cause engine failure. See attachment "Clean Away from holes.jpg"
Note: The oil cooler is not the cause and must not be replaced.
Note: "Reworking" contact surfaces (e.g. with abrasive paper or machining) to remove sealant residues is not permitted. Any consequential damage caused by this is not covered by the warranty or goodwill provisions.
Attachments
File
Description
new_gasket.jpg
Picture of old and new gasket
Oil Cooler Top.jpg
Oil Cooler Top View. Clean around area before removing
to ensure area is free of debris. Failure to do so may result in debris entering engine causing engine failure
OM 642 Turbocharger.jpg
Verify oil is not leaking from the Turbocharger Inlet Seal
(175)
05-27-2016 4:33 PM
© Copyright Daimler AG
DAVANDE
Page 1/5
Clean away from holes.jpg
Clean away from the holes. Debris or fallen objects may
enter the holes and cause the engine failure.
Symptoms
Power generation / Engine lubrication/oil cooling / Function / Oil level too low
Power generation / Engine lubrication/oil cooling / Leakage / External oil loss
Parts
Part number
ES1 ES2 Designation
A 642 188 04 80
Quantity Note
Gasket, oil cooler to cylinder
crankcase
EPC
2
X
Operation numbers/damage codes
Op. no.
Operation text
Time
18-6840
REMOVE/INSTALL/SEAL OIL HEAT EXCHANGER FOR ENGINE, REPLACE IF NECESSARY
Damage
code
Note
18242 04
Engine oil heat exchanger seal leaking
The listed damage code is not to
be considered as an acceptance of
costs.
Please refer to the applicable warranty and goodwill policies.
WIS-References
Document number
Title
Note
Allocation
AR18.30-S-6840SE
Remove/install oil-water he- ENGINE 642 in MODEL 639 Remedy
at exchanger
ENGINE 642.896 /898 /
992 /993 in MODEL 906
AR20.00-D-1140SD
Drain Coolant
Please ensure to drain the Remedy
coolant before removing any
parts
Attachments
05-27-2016 4:33 PM
© Copyright Daimler AG
DAVANDE
Page 2/5
new_gasket.jpg:
05-27-2016 4:33 PM
© Copyright Daimler AG
DAVANDE
Page 3/5
Oil Cooler Top.jpg:
05-27-2016 4:33 PM
© Copyright Daimler AG
DAVANDE
Page 4/5
OM 642 Turbocharger.
jpg:
Clean away from holes.
jpg:
05-27-2016 4:33 PM
© Copyright Daimler AG
DAVANDE
Page 5/5
- 6X better wear protection on critical engine parts than...
- 1.3X better sludge protection than industry standards*
- 3X Stronger against viscosity breakdown than leading full...
- Protection for 10,000 miles between oil changes
- Meets or exceeds the following specifications: API SP/SN...
- Formulated for engines with 75,000 miles or more, Valvoline...
- Delivers 20% better wear protection and 15% better sludge...
- Extra detergents safeguard against friction, corrosion and...
- Advanced friction-fighting additives help maximize...
- Provides performance benefits for high mileage, new and...
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TSB/Document ID: LI18.30-N-056338
Replacement Service Bulletin Number:
MFR Communication Date: 2016-05-27
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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