Classification:

Reference:

Date:

BT14-021b

ITB14-039b

February 19, 2015

2014-2015 Q50 AND Q50 HYBRID; STRONG ODOR INSIDE VEHICLE
This bulletin has been amended in the Title, APPLIED VEHICLES, and IF YOU CONFIRM.
No other changes have been made. Discard all previous versions of this bulletin.

APPLIED VEHICLES: 2014-2015 Q50 (V37)
2014-2015 Q50 Hybrid (V37)
APPLIED VINs and
DATES: All vehicles built before JN1BV7AP(*)FM 332566 and October 14, 2014
JN1BV7AR(*)FM 393189 and October 14, 2014
JN1AV7AP(*)FM 790218 and October 14, 2014
JN1AV7AR(*)FM 850209 and October 14, 2014

IF YOU CONFIRM
A strong sulfur like odor is coming from the Moonroof drain hoses after a hot soak (after sitting with doors and
windows closed).


Odor is most noticeable if the Moonroof shade is left closed while the vehicle sits in the direct sunlight
and then after a hot soak the Moonroof shade is opened.
NOTE: The Moonroof drain hoses MUST be the cause of the strong sulfur like odor for this bulletin to
apply.

ACTION


Replace the Moonroof drain hoses with the Service Procedure starting on the next page.
And



Deodorize with an ozone generator as needed.
And then



Replace in-cabin microfilter.

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 the 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 dealer to determine if this
applies to your vehicle.
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SERVICE PROCEDURE
Figure 1 shows the hoses that will be replaced in the following procedure.
Location of Moonroof
assembly drain ports

RR-RH
Drain hoses

FR-RH
Drain hoses

RR-LH
Drain hoses

FR-LH
Drain hoses
Figure 1
Original
Original
hose:
Has black
print
hose:

Replacement
Original(new)
hose:hose:
Has
white
Has
blackprint
print
hose:

Figure 1a

Figure 1b

1. Write down the radio settings.
PRESETS
AM
FM 1
FM 2
SAT 1
SAT 2
SAT 3
BASS

1

2

TREBLE

3

BALANCE

4

5

FADE

6

SPEED SEN. VOL.

2. If equipped, Write down the customer preferred setting for the Automatic Air Conditioning System.


If needed, refer to System Settings in the HAC section of the ESM.
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IMPORTANT: Open the Moonroof and all of the windows to allow the vehicle to “air out” while this
procedure is being performed.
 A fan can be used to help move air through the vehicle.
NOTE: The following Figures shown are of the driver’s side. Passenger side is similar.
3. Lower the headlining, but do not remove it from
vehicle.


Rest the headlining on top of the seats
(Figure 2).

NOTE:
 Refer to the Electronic Service Manual (ESM)
section INT – Interior for the procedure to lower
the headlining and remove trunk room trim.
 Always use a remover tool that is made of plastic
to prevent damage.
4. Disconnect all four Moonroof drain hoses (Figure 1)
one at a time from the Moonroof assembly drain
ports and blow compressed air into them to remove
any residual water and/or debris.

Figure 2

Replace Rear Drain Hoses
5. Remove the trunk room trim.
6. Disconnect the Moonroof drain hoses from the trunk side exit fittings (Figure 3) and then proceed to step 9.


For HEV vehicles perform step 7 and step 8 on page 4.

Left side Moonroof drain hose shown
detached from drain exit fitting. Right side (not
shown) is similar.
Figure 3
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7. For HEV vehicles only, remove the battery cooling fan duct attached on right side of trunk (Figure 4).

Remove these fasteners

Figure 4

8. Remove the nuts and bolts shown in Figure 5 and
then move the High Voltage battery cooling fan and
bracket gently out of the way.

Remove these fasteners

Reassembly Torque: 9.5 N•m (0.97 kg-m, 84 in-lb)

9. Tape a new rear Moonroof drain hose (Figure 6),
from the Parts Information table, to the trunk end of
the left and then right side Moonroof drain hoses as
shown in Figure 7.
Figure 5
NOTE: This will allow the new hose to be drawn through the C-pillar/package shelf.

New rear Moonroof
drain hoses
Pre-existing
Moonroof drain
hose

Connect with tape at
this end

New Moonroof
drain hose
Figure 6

Figure 7
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ITB14-039b

10. Cut the tape (left side is green, right side is black) of
each clip that holds the rear drain hoses in place to
the C-pillars and then remove the tape (Figure 8).


There are two taped clips at each rear C-pillar.

Cut tape here

NOTE: Do not remove the clips from body panel.
If the clips are broken they may fall into the pillar
panels, and cause noise.

Left side C-Pillar shown for reference
11. Clean the inside surfaces of each C-pillar and the
inside surfaces of each finisher with a clean damp
towel.

Figure 8

IMPORTANT: Step 11 will remove any residue left
by the Moonroof drain hoses.

Pre-existing Moonroof
drain hose

12. Gently pull the pre-existing rear Moonroof drain
hoses from the Moonroof side to draw the new drain
hoses connected to them into the vehicle.

Pull toward
front of vehicle

NOTE: Figure 9 shown from driver’s side rear door.

Figure 9

13. Remove the temporary tape and old hose from the
new hose.

Tape removed

14. Attach the new drain hoses to the Moonroof
assembly drain ports and drain exit fittings in the
trunk area.
15. Tape the new hoses to the 2 body clips (4 total) on
the left and right C-pillars that they were removed
from in step 10 (example shown in Figure 18).
Figure 10

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Replace Front Moonroof Drain Hoses.

Speaker grille

1. Detach the front speaker grille.


Lift the left side of the front speaker grille and
work from left to right to unsnap speaker grille.
Lift here and work
across to left side

Figure 11

Left side sunload sensor

2. Disconnect both left and right sunload sensors and
then remove the front speaker grille.

Figure 12

3. Cut the tape (left side is green, right side is black) of
each clip that holds the front drain hoses in place.


There are 4 clips at each front A-pillar.
NOTE: Do not remove the clips from body panel.
If the clips are broken they may fall into the pillar
panels and cause noise.

Cut tape here

Figure 13
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4. Disconnect the left side Moonroof drain hose from the drain hose exit port with long curved needle nose
pliers, and then remove the front Moonroof drain hose from the vehicle.