Oil pressure, check, B284
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Oil pressure, check, B284
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Important
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When checking at full load the handbrake must be applied and the brake pedal depressed. Due to the risk of overheating, checking at full load must not take longer than 5 seconds. Add a pause for cooling down. The oil level in the gearbox must be correct.
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2.
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Remove
Torque rod, front
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Warning
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The radiator fan may start without warning. Keep your fingers away to avoid injury.
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3.
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Remove the upper plug (A).
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7.
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Lower the car to the floor.
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8.
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Connect TECH 2 and check the oil temperature.
Important
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The oil temperature must be between 50 degrees C and 80 degrees C.
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9.
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Check the oil pressure in selector lever position "D".
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Move the selector lever to position "D".
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Check the oil pressure at idling speed and at full load - air conditioning and lighting disengaged.
- Desired value idling speed 3.7 - 4.1 bar.
- Desired value full load: 13.5 - 14.6 bar.
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Switch off the engine after the check.
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12.
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Remove the oil pressure gauge (B).
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13.
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Remove the connection (A).
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14.
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Fit the upper plug (A) with a new sealing ring
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Tighten the plug 10 Nm.
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15.
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Remove the lower plug (B).
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19.
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Lower the car to the floor.
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20.
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Connect TECH 2 and check the oil temperature.
Important
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The oil temperature must be between 50 degrees C and 80 degrees C.
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21.
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Check the oil pressure in selector lever position "R".
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Move the selector lever to position "R".
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Check the oil pressure at idling speed and at full load - air conditioning and lighting disengaged.
- Desired value idling speed 5.7 - 6.6 bar.
- Desired value full load: 19.0 - 21.3 bar.
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Switch off the engine after the check.
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23.
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Remove the oil pressure gauge (B).
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24.
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Remove the connection (A).
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25.
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Fit the lower plug (B) with a new sealing ring
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Tighten the plug 10 Nm.
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26.
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Lower the car to the floor.
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