For easy reference:
EM16-006a ITB17-004a March 28, 2018 2016-2017 Q50 AND 2017 Q60;
ACCESSORY DRIVE BELT NOISY OR HAS COME OFF APPLIED VEHICLES:
2016-2017 Q50 (V37)
2017 Q60 (V37)
APPLIED VIN AND DATE:
2016 Q50 (V37) All
2017 Q50 (V37)
RWD Built before:
JN1EV7AP(*)HM731871 / September 7, 2016
JN1FV7AP(*)HM 850227 / September 7, 2016
AWD Built before:
JN1EV7AR(*)HM832718 / September 7, 2016
JN1FV7AR(*)HM870451 / September 7, 2016
2017 Q60 (V37)
RWD Built before:
JN1EV7EK(*)HM 360095 / May 27, 2016
JN1FV7EK(*)HM 610102 / May 27, 2016
AWD Built before:
JN1EV7EL(*)HM550025 / May 27, 2016
JN1FV7EL(*)HM700062 / May 27, 2016
APPLIED ENGINE:
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. xIf 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. This bulletin has been amended to add 2017 Q50 to the Title, Applied Vehicles, and Applied VIN and Date. No other changes have been made. Please discard previous version of this bulletin.*
ITB17-004a 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.
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. NOTE: sticky note can be used. b. Align the paper to the front edge of belt (Figure 3 and Figure 4). c. While holding the paper up against the edge ofthe belt, press the paper into the edge of the idler pulley to mark the paper. d. Remove the paper and measure the distance from the belt to the mark that was just imprinted on the paper. Front edge of idler pulley Front edge of accessory belt 1 inch square piece of paper Idler pulley Idler pulley edge mark Side against belt
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.
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).
5. Remove the accessory drive belt. (Refer to the ESM, section EM – Engine Mechanical for removal information).
6. Discharge the A/C refrigerant. xRefer to the ESM, section HA – Heating & Air Conditioning System for information on discharging the A/C system.
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.
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.
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 inFigure 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).
PARTS INFORMATION
DESCRIPTION
Accessory Drive Belt
PART NUMBER
11720-5CA0A
QUANTITY
1, If Needed
CLAIMS INFORMATION
DESCRIPTION
Align A/C compressor (Includes A/C Evacuate and Recharge)
LABOR TIME
1.8 hrs
EM16-006a ITB17-004a March 28, 2018 2016-2017 Q50 AND 2017 Q60;
ACCESSORY DRIVE BELT NOISY OR HAS COME OFF APPLIED VEHICLES:
2016-2017 Q50 (V37)
2017 Q60 (V37)
APPLIED VIN AND DATE:
2016 Q50 (V37) All
2017 Q50 (V37)
RWD Built before:
JN1EV7AP(*)HM731871 / September 7, 2016
JN1FV7AP(*)HM 850227 / September 7, 2016
AWD Built before:
JN1EV7AR(*)HM832718 / September 7, 2016
JN1FV7AR(*)HM870451 / September 7, 2016
2017 Q60 (V37)
RWD Built before:
JN1EV7EK(*)HM 360095 / May 27, 2016
JN1FV7EK(*)HM 610102 / May 27, 2016
AWD Built before:
JN1EV7EL(*)HM550025 / May 27, 2016
JN1FV7EL(*)HM700062 / May 27, 2016
APPLIED ENGINE:
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. xIf 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. This bulletin has been amended to add 2017 Q50 to the Title, Applied Vehicles, and Applied VIN and Date. No other changes have been made. Please discard previous version of this bulletin.*
ITB17-004a 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.
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. NOTE: sticky note can be used. b. Align the paper to the front edge of belt (Figure 3 and Figure 4). c. While holding the paper up against the edge ofthe belt, press the paper into the edge of the idler pulley to mark the paper. d. Remove the paper and measure the distance from the belt to the mark that was just imprinted on the paper. Front edge of idler pulley Front edge of accessory belt 1 inch square piece of paper Idler pulley Idler pulley edge mark Side against belt
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.
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).
5. Remove the accessory drive belt. (Refer to the ESM, section EM – Engine Mechanical for removal information).
6. Discharge the A/C refrigerant. xRefer to the ESM, section HA – Heating & Air Conditioning System for information on discharging the A/C system.
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.
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.
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 inFigure 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).
PARTS INFORMATION
DESCRIPTION
Accessory Drive Belt
PART NUMBER
11720-5CA0A
QUANTITY
1, If Needed
CLAIMS INFORMATION
DESCRIPTION
Align A/C compressor (Includes A/C Evacuate and Recharge)
LABOR TIME
1.8 hrs
I will check that when the rain will be gone 
