ITB20-016

Classification:
Reference:
Date:
EM19-008
ITB20-016
May 19, 2020
Q50 AND Q60 WITH V6 ENGINE;
COOLANT RESIDUE AT WATER PUMP
APPLIED VEHICLES: 2016-2018 Q50 (V37)
2017-2018 Q60 (CV37)
APPLIED ENGINE:
VR30DDTT (V6)
IF YOU CONFIRM
Coolant residue is on the surface of the water pump and on the water pump pulley
AND
Coolant DOES NOT leak out when connected to a cooling system pressure tester.
HINT: The customer may state there is a coolant smell.
ACTION
Install an EPT sealer to the face of the water pump pulley.

For EPT sealer installation, see SERVICE PROCEDURE on the next page.

For EPT sealer information, see PARTS INFORMATION on the last page of this bulletin.
IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing.
You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to
successfully completing this repair.
Infiniti Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are properly trained individuals
who have the equipment, tools, safety instruction, and know-how to do a job properly and safely. NOTE: If you believe that a described
condition may apply to a particular vehicle, DO NOT assume that it does. See your Infiniti retailer to determine if this applies to your
vehicle.
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SERVICE PROCEDURE
IMPORTANT: Follow all warnings, cautions, and notes in the Electronic Service Manual (ESM) when
working on or around an engine.
1.
Open the hood, remove the clips, and then remove the air duct.
Air duct
(clips in circles)
Figure 1
2.
Remove the two (2) nuts, and then put the reservoir tank to the side.

There is no need to “open up” the cooling system, such as removing the pressure cap or a
coolant hose.
Reservoir tank
(nuts in circles)
Figure 2
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ITB20-016
HINT: It will be easier to perform the repair with the reservoir tank held down.
Reservoir tank
held down
Water pump
pulley
Figure 3
3.
Clean the face of the water pump pulley ONLY (see Figure 4).
HINT: Clean the area with a clean cloth and suitable residue-free cleaner, such as brake cleaner. If using
brake cleaner, use a type that complies with local regulations.
Apply the cleaner to the clean cloth, and then clean off the area where shown in Figure 4. Do NOT spray
anything directly on the water pump pulley as damage may occur to the water pump seal.
Clean inside
this area
Water pump
pulley
Figure 4
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ITB20-016

The face of the water pump pulley (Figure 5)
Clean the face of the water pump
pulley inside this area ONLY
One of six
water pump
pulley holes
Do NOT spray anything directly
on the water pump pulley
Metal surface
Figure 5
4.
Remove the backing from the EPT sealer (see PARTS INFORMATION on the next page), and then
firmly press on/apply the EPT sealer to the face of the water pump pulley.

Position the 3 mm hole in the EPT sealer over one of the holes of the water pump pulley.
To avoid damage to the vehicle, ensure the hole in the EPT sealer is fitted over one of the holes in the
water pump pulley.
3 mm hole
EPT sealer
Figure 6
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ITB20-016
5.
Reassemble the vehicle in reverse order of disassembly.

Reservoir tank nuts torque: 7.0 N•m (0.71kg-m, 62 in-lbs)
PARTS INFORMATION
DESCRIPTION
PART NUMBER
QUANTITY
COVER-WATER PUMP (EPT sealer)
21013-4HK0C
1
CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
PFP
OP CODE
SYM
DIA
FRT
Apply Water Pump EPT Seal
(1)
CX33AA
ZE
32
0.2
(1) Reference the electronic parts catalog and use the Water Pump Assembly (21010-*****) as the Primary
Failed Part (PFP).
AMENDMENT HISTORY
PUBLISHED DATE
REFERENCE
May 19, 2020
ITB20-016
DESCRIPTION
Original bulletin published
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ITB20-016