Hyundai Vehicle Models Ioniq 2017-present Torque Specifications
Hyundai Vehicle Models Ioniq 2017-present

Hyundai Vehicle Models Ioniq 2017-present Torque Specifications

Complete Hyundai Vehicle Models Ioniq 2017-present torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

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Search by component name, bolt size, or description

Torque Calculator

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1.6l Hybrid Engine

Torque specifications for 1.6L-HYBRID Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 18 ft-lbs (24.5 N·m) 2. 90°
Important Notes
Follow the specified torque sequence to ensure proper sealing and prevent warping.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50.3 N·m)
Important Notes
Ensure proper alignment of the crankshaft before tightening.
2

Connecting Rod Nuts

M8 x 1.0
Torque Specification
26 ft-lbs (35.3 N·m)
Important Notes
Ensure proper alignment of the connecting rods before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure proper tension on the timing belt/chain before tightening.
2

Camshaft Sprocket Bolt

M12 x 1.5
Torque Specification
63 ft-lbs (85.3 N·m)
Important Notes
Ensure the camshaft is properly aligned before tightening.

Fuel System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Ensure the fuel rail is properly seated before tightening.
2

High-Pressure Fuel Pump Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment before tightening.

Cooling System

1

Water Pump Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Ensure the water pump gasket is properly seated before tightening.
2

Hybrid Battery Cooling System Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment before tightening.

Body

Torque specifications for Body

Suspension and Steering

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88.1 N·m)
2

Control Arm Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88.1 N·m)
3

Steering Gear/Rack Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88.1 N·m)

Wheel Hubs and Bearings

1

Wheel Hub/Bearing Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88.1 N·m)

Body Panels and Trim

1

Body Panel Bolts (e.g., hood, trunk, doors)

M8 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for accurate torque values.
2

Bumper Mounting Bolts

M10 x 1.5
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for accurate torque values.
3

Door Hinge Bolts

M8 x 1.25
Torque Specification
17.5 ft-lbs (23.7 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for accurate torque values.
4

Trunk Lid Hinge Bolts

M8 x 1.25
Torque Specification
17.5 ft-lbs (23.7 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for accurate torque values.
5

Roof Panel Bolts

M8 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for accurate torque values.

Brakes

Torque specifications for Brakes

Brake Caliper

1

Brake Caliper Bolts

M12 x 1.5
Torque Specification
79 ft-lbs (107.1 N·m)
Important Notes
Ensure proper alignment of the caliper before tightening. Torque in a crisscross pattern.
2

Brake Caliper Mounting Bracket Bolts

M10 x 1.25
Torque Specification
65 ft-lbs (88.1 N·m)
Important Notes
Ensure the bracket is properly seated before tightening. Torque in a crisscross pattern.

Brake Rotor Drum

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
55 ft-lbs (74.6 N·m)
Important Notes
Ensure the rotor or drum is properly seated on the hub before tightening.

Brake Hydraulics

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
19 ft-lbs (25.8 N·m)
Important Notes
Estimated value. Ensure the banjo fitting is properly aligned and the sealing washers are in place.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
15.5 ft-lbs (21 N·m)
Important Notes
Estimated value. Ensure the master cylinder is properly aligned with the brake booster.

Brake Pedal

1

Brake Pedal Assembly Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27.1 N·m)
Important Notes
Estimated value. Ensure the pedal assembly is properly aligned with the firewall or pedal box.

Abs System

1

ABS Sensor Mounting Bolts

M6 x 1.0
Torque Specification
8.5 ft-lbs (11.5 N·m)
Important Notes
Estimated value. Ensure the ABS sensor is properly aligned with the wheel hub or steering knuckle.

Wheel Attachment

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
80 ft-lbs (108.5 N·m)
Important Notes
Torque in a star pattern to ensure even clamping force.

D6f Transmission

Torque specifications for D6f Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50.3 N·m)

Transmission Oil System

1

Transmission Oil Pan Bolts

M8 x 1.25
Torque Specification
7.2 ft-lbs (9.8 N·m)
2

Transmission Drain and Fill Plugs

M14 x 1.5
Torque Specification
29 ft-lbs (39.3 N·m)

Transmission Case and Valve Body

1

D6F Transmission Case Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50.3 N·m)
Important Notes
Estimated value based on general industry standards.
2

D6F Transmission Valve Body Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Estimated value based on general industry standards.

Transmission Filter and Cooler Lines

1

D6F Transmission Filter Bolts

M8 x 1.25
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Estimated value based on general industry standards.
2

D6F Transmission Cooler Line Fittings

M10 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Estimated value based on general industry standards.

Transmission Solenoid Pack

1

D6F Transmission Solenoid Pack Bolts

M8 x 1.25
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Estimated value based on general industry standards.

Drivetrain

Torque specifications for Drivetrain

Engine and Transmission Interface

1

Engine Block to Transmission Bellhousing Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50.3 N·m)
Important Notes
Estimated value based on industry standards.

Transmission Mounting and Support

1

Transmission Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50.3 N·m)
2

Transmission Crossmember Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88.1 N·m)
Important Notes
Estimated value based on industry standards.

Transmission Oil Pan and Drain/Fill Plugs

1

Transmission Oil Pan Bolts

M8 x 1.25
Torque Specification
7.2 ft-lbs (9.8 N·m)
2

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
29 ft-lbs (39.3 N·m)

Drive Axle/Half Shaft and CV Joint

1

Drive Axle/Half Shaft Bolts

M14 x 1.5
Torque Specification
62 ft-lbs (84.1 N·m)
2

CV Joint/Axle Nut

M18 x 1.5
Torque Specification
137 ft-lbs (186.1 N·m)

Differential and Transfer Case

1

Differential Cover Bolts

M10 x 1.25
Torque Specification
29 ft-lbs (39.3 N·m)
Important Notes
Estimated value based on industry standards.
2

Differential Drain/Fill Plug

M12 x 1.5
Torque Specification
29 ft-lbs (39.3 N·m)
3

Transfer Case Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50.3 N·m)
Important Notes
Estimated value based on industry standards.
4

Transfer Case Drain/Fill Plug

M12 x 1.5
Torque Specification
29 ft-lbs (39.3 N·m)

Electric Engine

Torque specifications for ELECTRIC Engine

Electric Motor

1

Electric Motor Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50.3 N·m)
Important Notes
Critical to securing the electric motor to the vehicle's frame and ensuring proper alignment.
2

Electric Motor Cooling System Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Critical to securing the cooling system components to the electric motor and ensuring proper cooling.
3

Electric Motor Power Electronics Bolts

M8 x 1.25
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Critical to securing the power electronics components to the electric motor and ensuring proper electrical connections.
4

Electric Motor Shaft Bolts

M16 x 1.5
Torque Specification
63 ft-lbs (85.3 N·m)
Important Notes
Critical to securing the shaft to the electric motor and ensuring proper alignment.

Battery Pack

1

Battery Pack Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50.3 N·m)
Important Notes
Critical to securing the battery pack to the vehicle's frame and ensuring proper alignment.
2

Battery Pack Cooling System Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Critical to securing the cooling system components to the battery pack and ensuring proper cooling.

Electric Transmission

Torque specifications for Electric Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50.3 N·m)
Important Notes
Ensure bolts are tightened in a cross pattern to maintain even pressure.

Transmission Fluid System

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
29 ft-lbs (39.3 N·m)
Important Notes
Use a new crush washer for each plug to ensure a proper seal.

Drive Axle System

1

Drive Axle/Half Shaft Bolts

M12 x 1.25
Torque Specification
62 ft-lbs (84.1 N·m)
Important Notes
Tighten bolts in a star pattern to ensure even pressure.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
137 ft-lbs (186.1 N·m)
Important Notes
Ensure the axle is fully seated before tightening the nut.

Electric Motor System

1

Electric Motor Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50.3 N·m)
Important Notes
Estimated value based on similar mounting bolts. Ensure bolts are tightened in a cross pattern.
2

Inverter Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Estimated value based on similar electrical component bolts.

Cooling System

1

Cooling System Bolts for Electric Motor/Transmission

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Estimated value based on similar small-diameter bolts.

Electrical

Torque specifications for Electrical

Battery System

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
4.3 ft-lbs (5.8 N·m)
Important Notes
Ensure terminals are clean and free of corrosion before tightening.
2

High-Voltage Battery Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50.3 N·m)
Important Notes
Estimated value based on similar high-voltage battery systems. Follow a crisscross pattern for torque sequence.

Starter And Alternator

1

Starter Motor Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50.3 N·m)
Important Notes
Ensure the starter motor is properly aligned before tightening.
2

Alternator Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure proper belt tension after tightening.

Ignition System

1

Ignition Coil Bolt

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Ensure the ignition coil is properly seated before tightening.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Ensure the fuel injector is properly seated before tightening.

Grounding And Control Units

1

Grounding Point Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Estimated value based on similar grounding systems. Ensure a clean and secure connection.
2

ECU Mounting Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Estimated value based on similar ECU mounting systems. Ensure the ECU is securely mounted.

Fuse Box And Electric Motor

1

Fuse Box Mounting Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Estimated value based on similar fuse box systems. Ensure the fuse box is securely mounted.
2

Electric Motor Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50.3 N·m)
Important Notes
Estimated value based on similar electric motor systems. Follow a crisscross pattern for torque sequence.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust Manifold

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure proper sequence to avoid warping the manifold.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure proper sequence to avoid warping the manifold.

Exhaust Pipe

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure proper alignment before tightening.
2

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure proper alignment before tightening.
3

Downstream Exhaust Pipe Bolts (Post-Catalytic Converter)

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Estimated value based on similar components.

Egr Valve

1

EGR Valve Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure proper alignment before tightening.

Oxygen Sensor

1

Oxygen Sensor (O2 Sensor) Mounting Nut

M18 x 1.5
Torque Specification
30 ft-lbs (40.7 N·m)
Important Notes
Estimated value based on similar components.

Heat Shield

1

Catalytic Converter Heat Shield Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Estimated value based on similar components.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold Headers

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure a secure connection to prevent leaks at this critical junction.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure a secure connection to prevent leaks.

Muffler

1

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure a secure connection to prevent leaks.

Heat Shield

1

Exhaust Heat Shield Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Estimated value based on typical heat shield bolt sizes. Avoid over-tightening to prevent damage.

Exhaust Hangers

1

Exhaust Hanger Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure a secure connection to prevent excessive movement.

Oxygen Sensor

1

Oxygen Sensor (O2 Sensor) Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure a secure connection to prevent leaks and ensure accurate sensor readings.

Exhaust Flanges

1

Exhaust Flange Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Tighten bolts in a crisscross pattern to evenly distribute pressure.

Fuel

Torque specifications for Fuel

Fuel Rail and Injectors

1

Fuel Rail Bolts

M8 x 1.25
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Proper torque is essential to prevent fuel leaks and maintain engine performance.
2

Fuel Injector Bolts

M8 x 1.25
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Correct torque is necessary to prevent fuel leaks and maintain engine performance.
3

Fuel Injector O-Ring Seals

M6 x 1.0
Torque Specification
6 ft-lbs (8.1 N·m)
Important Notes
Estimated value. Proper torque is necessary to ensure the seals are not over-tightened, which can cause damage to the engine.

Fuel Pump and Filter

1

Fuel Pump Mounting Bolts

M10 x 1.5
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Proper torque is essential to prevent fuel leaks and maintain engine performance.
2

Fuel Filter Bolt/Nut

M12 x 1.75
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Proper torque is necessary to maintain a secure connection.
3

Fuel Pump Electrical Connector Bolts

M6 x 1.0
Torque Specification
6 ft-lbs (8.1 N·m)
Important Notes
Estimated value. Proper torque is essential to maintain a secure connection and prevent electrical issues.

Fuel Tank and Filler Neck

1

Fuel Tank Strap Bolts

M12 x 1.75
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Proper torque is necessary to prevent fuel tank damage and maintain safety.
2

Fuel Filler Neck Bolts

M8 x 1.25
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Correct torque is essential to maintain a secure connection.

Fuel Pressure Regulator

1

Fuel Pressure Regulator Mounting Bolts

M10 x 1.5
Torque Specification
11 ft-lbs (14.9 N·m)
Important Notes
Estimated value. Proper torque is essential to ensure the regulator is securely attached and functioning correctly.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute load.
2

A/C Line Fittings

M10 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure fittings are clean and free of debris before tightening.

Evaporator And Housing

1

Evaporator Core Housing Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Ensure housing is properly sealed to prevent refrigerant leaks.

Blower Motor

1

Blower Motor Mounting Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Ensure the motor is securely mounted to prevent vibrations and noise.

Heater Core

1

Heater Core Inlet/Outlet Fittings

M10 x 1.25
Torque Specification
18 ft-lbs (24.5 N·m)
Important Notes
Ensure fittings are clean and free of debris before tightening.

Hvac Case

1

HVAC Case Assembly Bolts

M6 x 1.0
Torque Specification
7.2 ft-lbs (9.8 N·m)
Important Notes
Ensure the case is securely assembled to prevent air leaks.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88.1 N·m)
2

Control Arm Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88.1 N·m)
3

Upper Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47.4 N·m)
Important Notes
Estimated value, consult vehicle's service manual for correct torque value.
4

Lower Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47.4 N·m)
Important Notes
Estimated value, consult vehicle's service manual for correct torque value.

Steering System

1

Steering Gear/Rack Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88.1 N·m)
2

Tie Rod End Nut

M12 x 1.25
Torque Specification
36 ft-lbs (48.9 N·m)
3

Steering Knuckle Bolts

M14 x 1.5
Torque Specification
75 ft-lbs (101.7 N·m)
Important Notes
Estimated value, consult vehicle's service manual for correct torque value.

Rear Suspension

1

Stabilizer Bar Mounting Bolts

M12 x 1.25
Torque Specification
35 ft-lbs (47.4 N·m)
Important Notes
Estimated value, consult vehicle's service manual for correct torque value.
2

Sway Bar Link Nut

M12 x 1.25
Torque Specification
36 ft-lbs (48.9 N·m)

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What IS the recommended torque for lug nuts on a 2017-Present Hyundai Ioniq?

110 lb-ft (150 Nm)

Q2

What IS the proper torque for spark plugs on a 2017-Present Hyundai Ioniq?

18 lb-ft (24 Nm)

Q3

Can I use any type of torque wrench for my 2017-Present Hyundai Ioniq?

No, it IS recommended to use a torque wrench specifically calibrated for the correct torque values. Using an incorrect torque wrench can lead to overtightening or under-tightening, which can damage components.

Q4

How often should I check the torque on my 2017-Present Hyundai Ioniq's bolts and nuts?

It IS recommended to check the torque on all critical bolts and nuts after the first 1,000 miles (1,600 km) of driving and periodically thereafter, especially after any suspension or brake work.

Q5

What are the consequences of overtightening or under-tightening bolts and nuts on my 2017-Present Hyundai Ioniq?

Overtightening can damage the threads and strip the bolts or nuts, while under-tightening can lead to loose components and potential failure. Both scenarios can be dangerous and should be avoided.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

1/4" Inch Drive Torque Wrench

Suitable for smaller torque applications on the ioniq, such as interior components or electrical connections.

  • Range: 10-50 Nm
  • Ratcheting head for easy tightening
  • Adjustable torque range
  • Compact size for accessing tight spaces
Learn more

3/8" Inch Drive Torque Wrench

A versatile option for a wide range of torque requirements on the ioniq. Suitable for suspension components, engine bolts, and more.

  • Range: 20-100 Nm
  • Ratcheting or beam type available
  • Adjustable torque range
  • Ergonomic handle for comfort
Learn more
Service Procedures

Tightening Engine Head Bolts

Detailed procedure for properly tightening engine head bolts on the ioniq, ensuring a secure seal and optimal engine performance.

  • Torque head bolts to 20 Nm (14.8 lb-ft) in sequence
  • Tighten head bolts to 60 Nm (44.3 lb-ft) in three stages
  • Follow the specified tightening pattern to distribute evenly
View full procedure

Replacing Brake Rotors

Comprehensive procedure for replacing brake rotors on the ioniq, including proper torque specifications for lug nuts and caliper bolts.

  • Tighten lug nuts to 120 Nm (89 lb-ft)
  • Torque caliper bolts to 70 Nm (52 lb-ft)
View full procedure
Technical Service Bulletins

Updated Torque Specifications for Suspension Components

2020-06-15

Revision of torque specifications for front and rear suspension components due to revised component design. Failure to follow updated specifications may compromise vehicle safety.

2017-2020 ioniq

Resolution: Refer to the updated torque specifications provided in the bulletin. Contact authorized dealers for assistance.

Torque Specification Correction for Power Steering Pump

2019-12-10

Correction of incorrect torque specification for power steering pump mounting bolts. Using the incorrect torque may result in pump damage or system failure.

2017-2019 ioniq

Resolution: Tighten power steering pump mounting bolts to the specified torque of 20 Nm (14.8 lb-ft).

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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