2003 Infiniti Q45FACTORY OEM SERVICE PROCEDURE

General Specifications

Identifying Service Data General Specifications

Applied model VK45DE engine
Automatic transmission model RE5R05A
Transmission model code number 90X69, 91X14
Stall torque ratio 2.0: 1
Transmission gear ratio 1st 3.540
2nd 2.264
3rd 1.417
4th 1.000
5th 0.834
Reverse 2.370
Recommended fluid Nissan Matic Fluid J
Fluid capacity 10.3 liter (10-7/8 US qt, 9-1/8 lmp qt)
CAUTION:
  • Use only Nissan Genuine ATF Matic Fluid J. Do not mix with other fluid.
  • Using automatic transmission fluid other than Nissan Genuine ATF Matic Fluid J will deteriorate in driveability and automatic transmission durability, and may damage the automatic transmission, which is not covered by the warranty.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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