Nissan GT-R (R35) · Service Manual STEERING

POWER STEERING FLUID

 
 FLUID LEVEL

    1.Check fluid level with engine stopped.
    2.Check that fluid level is between MIN and MAX.
    ■ CAUTION ■
    Adjust the fluid level to the R level (B) rather than the fluid level (A) in sports driving mode or in high road driving mode.

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    3.Fluid levels at HOT and COLD are different. Do not confuse them.
    HOT
    		: Fluid temperature 50 – 80°C (122 – 176°F)
    COLD
    		: Fluid temperature 0 – 30°C (32 – 86°F)


    Recommended fluid
    		: Refer to Fluids and Lubricants.
    Fluid capacity
    		: Refer to General Specifications.

    ■ CAUTION ■
    • The fluid level must not exceed the MAX line. Excessive fluid causes fluid leakage from the cap.
    • Never reuse drained power steering fluid.

 
 FLUID LEAKAGE

Check hydraulic connections for fluid leakage, cracks, damage, looseness, or wear.

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    1.Run the engine until the fluid temperature reaches 50 to 80°C (122 to 176°F) in reservoir tank, and keep engine speed idle.
    2.Turn steering wheel several times from full left stop to full right stop.
    3.Hold steering wheel at each lock position for five seconds and carefully check for fluid leakage.
    ■ CAUTION ■
    Never hold the steering wheel in a locked position for more than 10 seconds. (There is the possibility that power steering oil pump assembly may be damaged.)
    4.If fluid leakage at connections occurs, loosen flare nut and then retighten. Do not overtighten connector as this can damage O-ring, washer and connector.
    5.If fluid leakage from oil pump occurs, check oil pump. Refer to Inspection (GT-R certified NISSAN dealer).
    6.Check steering gear boots for accumulation of fluid leakage from steering gear.
 
 AIR BLEEDING HYDRAULIC SYSTEM

If air bleeding is not completed, the following symptoms can be observed.
  • Bubbles are created in reservoir tank.
  • Clicking noise can be heard from oil pump.
  • Excessive buzzing in the oil pump.
    NOTE：
    Fluid noise may occur in the steering gear or oil pump. This does not affect performance or durability of the system.
    1.Turn steering wheel several times from full left stop to full right stop with engine off.
    ■ CAUTION ■
    Fill reservoir tank with a sufficient amount of fluid so that fluid level is not below the MIN line while turning steering wheel.
    2.Start the engine and hold steering wheel at each lock position for 3 seconds at idle to check for fluid leakage.
    3.Repeat step 2 above several times at approximately 3 seconds intervals.
    ■ CAUTION ■
    Never hold the steering wheel in a locked position for more than 10 seconds. (There is the possibility that oil pump may be damaged.)
    4.Check fluid for bubbles and white contamination.
    5.Stop the engine if bubbles or white contamination exist. Perform step 2 and 3 above after waiting until bubbles and white contamination disappear.
    6.Stop the engine, and then check fluid level.