2018 INFINITI Q50 HYBRID cooling

2. Basic High-voltage Information
2-1
Battery Information
The Q50 HYBRID utilizes two batteries in order to supply both high and low voltage.
2-1.1 12-Volt Battery • The Q50 HYBRID contains a conventional lead-acid12-volt battery.
• The 12-volt battery is located in the trunk, on the left side, concealed by a trim cover (A) .
• The 12-volt battery is charged by the high-voltage battery through the DC/DC converter.
2-1.2 High-voltage Battery • The Q50 HYBRID contains a high-voltage battery.
• The high-voltage battery is mounted in the trunk areabehind the rear seat, enclosed in a metal case and
concealed by trim cover.
• The high-voltage battery stores energy at approximately 346 - 400 volts DC.
• A vent hose is provided to exhaust gasses outside the vehicle if necessary.
• An air vent (A) is located on the rear left hand lower C-pillar trim for battery cooling.
The high-voltage battery supplies power to the following: • High-voltage harnesses
• DC/DC converter
• Traction motor inverter
• Traction motor
• Electric air conditioner compressor A
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A
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4. Roadside Assistance
4-1
Jump Starting
To start the hybrid system with a booster battery, the instructions and precautions below must be followed. If done incorrectly, jump starting can lead to a 12-volt battery explosion, resulting in severe
personal

injury or death. It could also damage your vehicle.
Jump starting provides power to the 12-volt system to allow the electrical systems to operate. The electrical
systems must be operating to allow the high-voltage battery to be charged. Jump starting does not charge
the high-voltage battery.
Discharged 12-volt battery may cause the following issues: • The instrument cluster cannot be displayed while the ignition switch is turned ON. (The hybridsystem cannot start.)
• Headlamps, horn, etc. are weak. • To avoid electrical shock, the high-voltage battery CANNOT be jump started.
•

Explosive hydrogen gas is always present in the vicinity of the 12-volt battery. Keep all
sparks and flames away from the 12-volt battery. Make sure the vent tube is mounted.
• Do not allow battery fluid to come into contact with eyes, skin, clothing or painted surfaces. Battery fluid is a corrosive sulfuric acid solution that can cause severe burns.
If the fluid comes into contact with anything, immediately flush the contacted area
with water.
• The booster battery must be rated at 12 volts. Use of an improperly rated battery can damage the vehicle.
• Whenever working on or near a 12-volt battery, always wear suitable eye protectors (for example, goggles or industrial safety spectacles) and remove rings, metal bands, or any
other jewelry. Do not lean over the 12-volt battery when jump starting.
• Do not attempt to jump start a frozen battery. It could explode and cause serious injury.
• Q50 HYBRID is equipped with an automatic cooling fan. It could come on at any time. Keep hands and other objects away from it.
• Always follow the jump starting instructions below. Failure to do so could result in damage to the charging system and cause personal injury.
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4-3 Towing
4-3.1
Vehicle Specifications Length
189.6
in. (4,815 mm) *1
189.1 in. (4,803 mm) *2
Width 71.8 in. (1,824 mm)
Overall Height 56.8 in. (1,443 mm) *3
57.2 in (1,453 mm) *4
Wheel Base 112.2 in. (2,850 mm)
Minimum ground clearance 5.1 in. (130.2 mm) *3
4.8 in. (122.0 mm) *4
Overall vehicle weight 1,826 kg – 1,904 kg (4,025 lbs. – 4,197 lbs.)
(Weight varies by equipment and trim level.)
Front approach angle 16.0*3
16.6 *4
Rear departure angle 16.2*3
16.8 *4
*1 With front license plate
*2 Without front license plate
*3: 2WD models
*4: AWD models
4-3.2 Towing Guidelines
Infiniti strongly recommends that Q50 HYBRID be towed with the driving (rear) wheels off the ground or
that a dolly be used as illustrated. • Never tow with the rear wheels on the ground or four (4) wheels on the ground (forward
or
backward) , as this may cause serious and expensive damage to the motor.
• Never tow AWD models with any of the wheels on the ground as this may cause serious and expensive damage to the powertrain.
• Transport the vehicle only after turning the ignition switch OFF.
• Safety chains or cables must be attached only to the main structural members of the vehicle. Otherwise, the vehicle body will be damaged.
• Do not use the vehicle tie down hook to free a vehicle stuck in sand, snow, mud, etc.
• Never tow a vehicle using the vehicle tie down hook.
• Always pull the cable straight out from the front of the vehicle. Never pull on the vehicle at an angle.
• Pulling devices should be routed so they do not touch any part of the suspension, steering, brake, high-voltage or cooling systems.
• Pulling devices such as ropes or canvas straps are not recommended for use in vehicle towing or recovery.
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