ITB15-010d
Service Bulletin Details
Public Details for: ITB15-010d
Infiniti; procedure to clean cvt transmission fluid coolers this bulletin has been amended. See amendment history on the last page. Please discard previous versions of this bulletin.
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Classification: Reference: AT14-017d Date: ITB15-010d October 31, 2019 INFINITI; PROCEDURE TO CLEAN CVT TRANSMISSION FLUID COOLERS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin. APPLIED VEHICLES: 2013 JX (L50) - Built after 5N1AL0M(*)(*)DC 343902 // March 26, 2013 2014-2020 QX60 (L50) - V6 engine only APPLIED TRANSMISSION: CVT IMPORTANT: Metal debris and friction material may become trapped in the radiator, cooling hoses, bypass valve or external CVT fluid cooler. This debris can contaminate the newly serviced transmission, control valve or torque converter. In severe cases this debris can block or restrict flow and may cause damage to the newly serviced CVT. SERVICE INFORMATION When a CVT, control valve, or torque converter replacement is necessary for one of the applied vehicles, the CVT transmission fluid coolers (radiator based fluid cooler and external auxiliary cooler if present) must be flushed. 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. 1/7 SERVICE PROCEDURE Flushing Radiator based CVT Transmission Fluid Cooler IMPORTANT: The CVT fluid cooler hoses will be flushed in both directions in the following procedures. 1. Place the vehicle on a lift and remove the left front wheel. 2. Partially remove the left front fender protector to gain access to the CVT fluid cooler. Refer to the Electronic Service Manual (ESM), section EXT – Exterior or BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY > EXTERIOR -> REMOVAL AND INSTALLATION > FENDER PROTECTOR > FENDER PROTECTOR > Removal and Installation. Two (10 mm head) bolts attach bypass valve to the fluid cooler. The other bolt is on the opposite side of bypass valve. Figure 1 3. Place an oil drain pan under the CVT fluid cooler. 4. Unbolt and disconnect the external CVT fluid cooler bypass valve from the external CVT fluid cooler (Figure 1). 5. Disconnect the CVT fluid cooler inlet and outlet rubber hoses from the CVT oil warmer (Figure 2) and discard spring clamps. NOTE: If rubber material from a cooler hose remains on the steel tube or fitting, replace the rubber hose and clean the steel tube. 6. Allow any NS-3 fluid that remains in the CVT fluid cooler hoses to drain into the oil drain pan. CVT fluid warmer to CVT fluid cooler hose CVT fluid warmer CVT fluid warmer to radiator hose To radiator CVT fluid cooler CVT fluid cooler To radiator CVT fluid cooler Figure 2 2/7 ITB15-010d CAUTION: Wear safety glasses and rubber gloves when spraying the Transmission Cooler Cleaner. Spray Cooler Cleaner only in areas with adequate ventilation. Avoid contact with eyes and skin. Do not breathe vapors or mist from spray. Fluid outlet Fluid inlet NOTE: The two hoses that have been removed from the CVT fluid warmer will be flushed first in one direction and then the other. CVT fluid cooler bypass valve 7. Insert the “extension adapter hose”, from a can of Transmission Cooler Cleaner (Infiniti P/N 999MPAM006P), into one or the other of the disconnected CVT fluid cooler hoses (Figure 3). Figure 3 8. While blocking the CVT fluid cooler bypass valve fluid passage (Figure 3) with thumb: a. Hold the hose and can as high as possible. b. Spray Transmission Cooler Cleaner, in a continuous stream, into the CVT fluid cooler inlet hose. Place thumb over this fluid passage c. Spray fluid until it flows out of the other hose for 5 seconds. 9. Slide a piece of 5/8 inch hose (16 mm) over the end of the CVT fluid cooler hose (Figure 4) that was used as the flush inlet. 5/8 inch hose 10. Insert the tip of an air gun into the end of 5/8 inch (16 mm) hose (Figure 4) and block the CVT fluid cooler bypass valve fluid passage. 11. Blow compressed air, regulated to 5-9 kg/cm2 (70 – 130 PSI), through the CVT fluid cooler hose for 10 seconds to force out any remaining fluid. 12. Repeat steps 7 through 11 one additional time and then proceed to step 13. Figure 4 3/7 ITB15-010d 13. Reverse the direction that the hoses are being flushed (Figure 3) and repeat steps 7 through 11 twice. When complete, proceed to step 14. 14. Reassemble the CVT fluid cooler hoses to the CVT warmer with the new spring clamps listed in PARTS INFORMATION on page 6 in the reverse order of disassembly. For correct hose assembly and alignment, refer to the ESM, section TM – Transaxle & Transmission or TRANSMISSION & DRIVELINE > TRANSAXLE & TRANSMISSION > CVT: [applicable CVT] > REMOVAL AND INSTALLATION > CVT FLUID COOLER SYSTEM > Removal and Installation. Flushing External CVT Transmission Auxiliary Fluid Cooler 1. Remove the CVT fluid cooler (auxiliary fluid cooler) from vehicle. Refer to the ESM, section TM – Transaxle & Transmission or TRANSMISSION & DRIVELINE > TRANSAXLE & TRANSMISSION > CVT: [applicable CVT] > REMOVAL AND INSTALLATION > CVT FLUID COOLER SYSTEM > Removal and Installation. CVT fluid cooler Figure 5 2. Remove the O-rings from auxiliary fluid cooler and discard. 3. Install a 4 inch long hose with an inside diameter of 5/8 inch (16 mm) onto the inlet side of the auxiliary fluid cooler. 4. Install a 6 inch long hose with an inside diameter of 5/8 inch (16 mm) onto the outlet of the auxiliary fluid cooler and place the opposite end into a suitable container to catch used fluid. Outlet Inlet Figure 6 4/7 ITB15-010d 5. Insert the “extension adapter hose” from a can of Transmission Cooler Cleaner (Infiniti P/N 999MPAM006P) into the auxiliary fluid cooler inlet (Figure 7). Inlet 6. Spray one full can of Transmission Cooler Cleaner through the inlet of the auxiliary fluid cooler, letting cleaner drain through the outlet and into a container. 7. Allow the remaining fluid in the auxiliary fluid cooler to drain out. Figure 7 8. Insert the tip of an air gun into the end of the auxiliary fluid cooler inlet (Figure 8). 9. Wrap a shop rag around the air gun tip and end of the cooler inlet (Figure 8). 10. Blow compressed air, regulated to 5-9 kg/cm2 (70 – 130 PSI), through the inlet side of the auxiliary fluid cooler for 10 seconds to force out any remaining fluid. Figure 8 Suction gun 11. While holding the hoses securely to the auxiliary fluid cooler (Figure 9), flush 2 full quarts of NS-3 (or equivalent) with a 1 pint suction gun. Inlet Flush from the inlet side of the auxiliary fluid cooler through to the outlet. 12. Allow the remaining fluid in the auxiliary fluid cooler to drain out. Figure 9 5/7 ITB15-010d 13. To complete the flush, insert the tip of an air gun again into the end of the auxiliary fluid cooler inlet (Figure 8). 14. Wrap a shop rag around the air gun tip and end of the cooler inlet (Figure 8). 15. Blow compressed air, regulated to 5-9 kg/cm2 (70 – 130 PSI), through the inlet of the auxiliary fluid cooler for 10 seconds to force out any remaining NS-3 fluid. 16. Reassemble the auxiliary fluid cooler and CVT fluid cooler bypass valve in the reverse order of disassembly with the new O-rings listed in PARTS INFORMATION, below. Refer to the ESM, section TM – Transaxle & Transmission or TRANSMISSION & DRIVELINE > TRANSAXLE & TRANSMISSION > CVT: [applicable CVT] > REMOVAL AND INSTALLATION > CVT FLUID COOLER SYSTEM > Removal and Installation. PARTS INFORMATION DESCRIPTION Hose Spring Clamp O-Rings (CVT Fluid Cooler) Transmission Cooler Cleaner NS-3 CVT Fluid PART # 21639-7990A 22180-9NB0A 999MP-AM006P (1) 999MP-NS300P (1) (2) QUANTITY 2 2 As needed As needed (1) Order this item through the Infiniti Maintenance Advantage Program, 1-877-INF-IMA1 (877-463-4621). Website order via link on dealer portal www.NNAnet.com and click on the “Maintenance Advantage” link. (2) For warranty repairs, Nissan NS-3 CVT Fluid must be used. For customer pay repairs, Nissan NS-3 CVT Fluid or an equivalent must be used. CLAIMS INFORMATION With CVT Assembly Replacement on same repair line Submit a Primary Part (PP) type line claim using the following claims coding: OPERATION Flush CVT Oil Cooler (1) Use the PFP for the repair actually performed. PFP (1) OP CODE JX31AA FRT 0.7 PFP (1) OP CODE JX32AA FRT 0.7 OR With Valve body or Torque Converter Replacement on same repair line Submit a Primary Part (PP) type line claim using the following claims coding: OPERATION Flush CVT oil cooler with valve body / torque converter replacement (1) Use the PFP for the repair actually performed. 6/7 ITB15-010d AMENDMENT HISTORY PUBLISHED DATE REFERENCE DESCRIPTION March 12, 2015 ITB15-010 Original bulletin published. September 9, 2015 ITB15-010a APPLIED VEHICLES section revised April 7, 2016 ITB15-010b APPLIED VEHICLES section revised April 24, 2017 ITB15-010c APPLIED VEHICLES section revised October 31, 2019 ITB15-010d APPLIED VEHICLES and PARTS INFORMATION sections revised 7/7 ITB15-010d