ITB17-004

Classification:
Reference:
Date:
EM16-006
ITB17-004
February 3, 2017
2016 Q50 AND 2017 Q60; ACCESSORY DRIVE BELT NOISY
OR HAS COME OFF
APPLIED VEHICLES:
2016 Q50 (V37)
2017 Q60 (V37)
APPLIED VIN AND DATE: 2016 Q50 (V37)
Built before:
RWD
AWD
2017 Q60 (V37)
Built before:
RWD
AWD
APPLIED ENGINE:
JN1EV7AP(*)HM 731871 / September 7, 2016
JN1FV7AP(*)HM 850227 / September 7, 2016
JN1EV7AR(*)HM 832718 / September 7, 2016
JN1FV7AR(*)HM 870451 / September 7, 2016
JN1EV7EK(*)HM 360095 / May 27, 2016
JN1FV7EK(*)HM 610102 / May 27, 2016
JN1EV7EL(*)HM 550025 / May 27, 2016
JN1FV7EL(*)HM 700062 / May 27, 2016
VR30DDTT (V6 Twin Turbo Engine)
NOTE: Does not apply to Hybrid models
IF YOU CONFIRM
The accessory drive belt is noisy.
Or
The accessory drive belt has come off of the idler pulley.
ACTION

If the accessory drive belt is currently only noisy, check it’s alignment with the procedure starting on
page 3.

If the accessory drive belt has come off of the idler pulley, first repair the accessory drive belt and any
collateral damage caused by the belt, and then Proceed to Re-align A/C Compressor on page 6.
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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Flow Chart
The accessory drive belt is noisy.
Or
The accessory drive belt has come off of the idler pulley.
Has the accessory belt come OFF of
the idler pulley?
NO
YES
Repair the accessory belt and any
collateral damage caused by the
belt

Proceed to Check Accessory Drive
Belt Alignment on page 3.
Refer to the Electronic Service
Manual (ESM) for component
specific repair information.
Proceed to Re-align A/C Compressor
on page 6.
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ITB17-004
SERVICE PROCEDURE
Check Accessory Drive Belt Alignment
1. Access the idler pulley by hand.
NOTE: The idler pulley can be reached from the driver’s side of the engine compartment between the
radiator and the front of the engine as shown in Figure 1 and Figure 2.
Figure 1
Idler pulley
Figure 2
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ITB17-004
Front edge of
accessory belt
2. Measure the gap from the front edge of the belt to
the front edge of the idler pulley shown in Figure 3
as follows:
a. Cut out a 1 inch square piece of paper.
Front edge of
idler pulley
NOTE: sticky note can be used.
Figure 3
Idler pulley
b. Align the paper to the front edge of belt
(Figure 3 and Figure 4).
1 inch square
piece of paper
c. While holding the paper up against the edge of
the belt, press the paper into the edge of the
idler pulley to mark the paper.
Figure 4
d. Remove the paper and measure the distance
from the belt to the mark that was just
imprinted on the paper.
Idler pulley
edge mark
Side against
belt
Figure 5
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ITB17-004
3. Is the distance of the belt 3.5 mm or more from the front edge of the pulley?
YES: No adjustment required at this time.

Refer to the ESM, section EM – Engine Mechanical for further diagnostic information.
NO: Proceed to Re-align A/C Compressor.
OK
NG
Belt needs to
be re-aligned
3.5 mm or more
Figure 6
Figure 7
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ITB17-004
Re-align A/C Compressor
1. Remove Air Duct (inlet) shown in Figure 8.
2. Remove Air cleaner body (bank 2).
3. Remove Air cleaner cover (bank 2).
4. Remove Air duct (bank 2).
Figure 8
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ITB17-004
5. Remove the accessory drive belt.

Refer to the ESM, section EM – Engine Mechanical for removal information
6. Discharge the A/C refrigerant.

Refer to the ESM, section HA – Heating & Air Conditioning System for information on discharging
the A/C system.
High pressure
hose
Nut
7. Remove the nut holding the high pressure hose to
the A/C compressor and then disconnect the high
pressure hose.
NOTE: Do not remove the low pressure hose.
A/C
compressor
Figure 9
8. Loosen the front two (2) A/C compressor mounting bolts shown in Figure 10.

Do not remove the A/C compressor mounting bolts when loosening.
9. Loosen the single rear A/C compressor mounting bolt shown in Figure 10.
Step 9
Step 6
Figure 10
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ITB17-004
10. Move the A/C compressor up and down to free it from the engine assembly.
11. Push the A/C compressor toward the rear of the vehicle.
12. While holding the A/C compressor toward the rear of the vehicle, tighten the A/C compressor mounting
bolts in the order shown in Figure 11 to 5 N•m, (0.51 kg-m, 44 in-lb).
NOTE: Take care not to move the A/C compressor until the final torqueing of the bolts in the next step..
13. Torque the A/C compressor mounting bolts to 30.9 N•m, (3.2 kg-m, 23 ft-lb) in the order shown in
Figure 11.
1
3
2
Figure 11
14. Re-assemble the vehicle in the reverse order of disassembly.
15. Recharge A/C refrigerant.

Refer to the ESM, section HA – Heating & Air Conditioning System for information on recharging the
A/C system.
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ITB17-004
PARTS INFORMATION
DESCRIPTION
PART NUMBER
QUANTITY
Accessory Drive Belt
11720-5CA0A
1, If Needed
CLAIMS INFORMATION
DESCRIPTION
PFP
OP CODE
SYM
DIA
FRT
Align A/C compressor (Includes A/C
Evacuate and Recharge)
(1)
TX48AA
ZL
32
1.8
(1) Refer to the electronic parts catalog (FAST or equivalent) and use the appropriate A/C Compressor part
number (92600-XXXXX) as the primary failed part.
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ITB17-004