Kia Sorento 2021-present D8F Transmission Transmission Specifications
Kia Sorento 2021-present

Kia Sorento 2021-present D8F Transmission Specifications

This document provides detailed technical specifications for the D8F transmission used in the 2021-Present Kia Sorento. It includes information on gear ratios, torque capacity, fluid requirements, and maintenance intervals. The specifications are designed to assist automotive technicians, enthusiasts, and owners in understanding the transmission's performance, ensuring proper maintenance, and diagnosing potential issues. This comprehensive guide also highlights compatibility with various engine configurations and offers insights into the transmission's role in the vehicle's overall drivetrain efficiency. Whether you're performing routine maintenance, upgrading components, or troubleshooting, this resource is an invaluable tool for maximizing the longevity and performance of your Kia Sorento's transmission.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the d8f-transmission used in the 2021-Present Kia SORENTO. It is designed to assist users in understanding the transmission's features, performance, and maintenance requirements. The document is organized into sections for easy navigation and includes a quick reference guide for key specifications.

How to Use

Use the search function to quickly locate specific terms or phrases within the document. Enter keywords related to the transmission system, such as 'torque converter' or 'gear ratios', to find relevant information.

Navigate through the document using the table of contents or by scrolling through the sections. Each section is clearly labeled and contains subsections with detailed information about the d8f-transmission.

Key Specifications

Transmission Type

8-speed automatic

Max Torque Capacity

280 lb-ft

Weight

150 lbs

Fuel Efficiency

Up to 28 mpg

Service Interval

60,000 miles

Available Specifications

Transmission Specifications

This section covers the key technical specifications of the d8f-transmission, including its type, gear ratios, and torque capacity. It provides an in-depth look at the transmission's design and capabilities.

Type and Design
  • 8-speed automatic transmission
  • Front-wheel drive and all-wheel drive compatible
  • Compact and lightweight design
  • Optimized for fuel efficiency
Gear Ratios
  • 1st gear: 5.25:1
  • 2nd gear: 3.03:1
  • 3rd gear: 1.92:1
  • 4th gear: 1.37:1
  • 5th gear: 1.00:1
  • 6th gear: 0.82:1

Performance Features

This section highlights the performance features of the d8f-transmission, including its shift response, driving modes, and adaptability to different driving conditions.

Shift Response
  • Quick and smooth gear shifts
  • Adaptive shift logic for optimal performance
  • Reduced shift shock and vibration
Driving Modes
  • Eco mode for improved fuel efficiency
  • Sport mode for enhanced performance
  • Manual mode for driver-controlled shifts

Maintenance and Care

This section provides essential information on maintaining the d8f-transmission, including recommended service intervals, fluid specifications, and troubleshooting tips.

Service Intervals
  • Transmission fluid change every 60,000 miles
  • Inspect transmission system annually
  • Replace filter as needed
Fluid Specifications
  • Use Kia-approved transmission fluid
  • Ensure proper fluid level and condition
  • Check for leaks regularly

Transmission Specifications

Overview

Type
8-Speed Automatic
Configuration
Front-Wheel Drive / All-Wheel Drive
Platform
N3
Material
Aluminum Alloy
Location
Front Engine

Dimensions

Length
25.6 inches / 650 mm
Width
18.9 inches / 480 mm
Height
14.2 inches / 360 mm
Weight
187 lbs / 85 kg
input Shaft Diameter
1.2 inches / 30 mm
Output Shaft Diameter
1.5 inches / 38 mm
Fluid Capacity
7.4 quarts / 7 liters

Materials

Housing
Aluminum Alloy
Gears
Case-Hardened Steel
Clutch Packs
Carbon Fiber Composite
Seals
Viton Rubber

Features

Performance
  • Quick Shift Technology
  • Adaptive Shift Control
  • Multi-Drive Modes
Efficiency
  • Low Friction Bearings
  • Optimized Gear Ratios
  • Eco Mode
Durability
  • Reinforced Gear Teeth
  • Heat-Treated Components
  • Corrosion-Resistant Coating
Technology
  • Electronic Shift-by-Wire
  • Integrated TCM (Transmission Control Module)
  • Hill Descent Control
Comfort
  • Smooth Shift Logic
  • Reduced Noise and Vibration
  • Paddle Shifters

Safety Features

Protection
  • Overheat Protection
  • Torque Limiter
Monitoring
  • Real-Time Diagnostics
  • Fluid Level Sensor
Emergency
  • Fail-Safe Mode
  • Manual Shift Override

Comfort Features

Noise Reduction
  • Acoustic Dampening
  • Precision Machining
Shift Quality
  • Adaptive Learning
  • Smooth Transitions
Ergonomics
  • Lightweight Design
  • Compact Footprint
Climate
  • Thermal Management
  • Cooling System

Accessories

Upgrades
  • Performance Shift Kit
  • Enhanced Cooling System
Maintenance
  • Transmission Fluid Kit
  • Filter Replacement Kit
Tools
  • Diagnostic Scanner
  • Fluid Pump

Maintenance

Service interval
60,000 miles / 72 months
Service Items
  • Fluid and Filter Replacement
  • Seal Inspection
  • Shift Quality Check
  • Diagnostic Scan
  • Solenoid Check
Maintenance Notes
Use only manufacturer-approved fluids and parts.

Warranty

Basic
Miles: 60,000
Years: 5
Coverage: Bumper-to-Bumper
Powertrain
Miles: 100,000
Years: 10
Coverage: Transmission Components
Corrosion
Miles: Unlimited
Years: 7
Coverage: Perforation Only
Roadside Assistance
Miles: Unlimited
Years: 5
Coverage: 24/7 Support

Production Details

Manufacturer
Hyundai Transys
Manufacturing Process
  • Precision Casting
  • CNC Machining
  • Automated Assembly
Quality Control
Testing: Dynamic Load Testing
inspection: 100% Component Check
Sustainability Practices
  • Recycled Materials
  • Energy-Efficient Production
Production Metrics
  • Annual Output: 500,000 Units
  • Defect Rate: <0.1%

Service Information for d8f transmission Service

Maintenance and service requirements specific to this component

30,000
36
  • Fluid Level Check
  • Diagnostic Scan
  • Shift Quality Inspection
  • Seal Inspection

Ensure fluid meets manufacturer specifications.

60,000
72
  • Fluid and Filter Replacement
  • Solenoid Check
  • Clutch Pack Inspection
  • Shift Mechanism Lubrication

Use only approved tools and fluids.

100,000
120
  • Complete Fluid Flush
  • Clutch Pack Replacement
  • Transmission Overhaul
  • Performance Testing

Requires specialized diagnostic equipment.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the d8f transmission compatible with all 2021-Present Kia Sorento models?

The d8f transmission is specifically designed for the 2021-Present Kia Sorento lineup, including both hybrid and non-hybrid variants. It is compatible with models equipped with the 2.5L gasoline engine and the 1.6L turbocharged hybrid engine. However, compatibility may vary based on trim levels and specific configurations. Always verify with your vehicle’s VIN or consult the manufacturer’s technical guide for precise compatibility details.

Q2

What maintenance is required for the d8f transmission in the Kia Sorento?

The d8f transmission in the Kia Sorento requires regular maintenance to ensure optimal performance. This includes checking and replacing the transmission fluid every 60,000 miles or as specified in the owner’s manual. Inspect for leaks, ensure proper fluid levels, and monitor for unusual noises or shifting issues. Scheduled maintenance should align with Kia’s recommended service intervals to prevent premature wear and ensure longevity.

Q3

How do I install or replace the d8f transmission in a Kia Sorento?

Replacing the d8f transmission in a Kia Sorento involves several steps: disconnect the battery, remove the transmission mount, detach the driveshaft, and unbolt the transmission from the engine. Carefully lower the transmission using a jack and replace it with the new unit. Reassemble all components, ensuring proper torque specifications. Refill with the correct transmission fluid and test for leaks. Professional installation is recommended due to the complexity of the process.

Q4

What should I do if my d8f transmission is not shifting smoothly?

If your d8f transmission is not shifting smoothly, start by checking the transmission fluid level and condition. Low or contaminated fluid can cause shifting issues. Inspect for error codes using a diagnostic scanner and address any fault codes. Ensure the transmission mounts are secure and the throttle body is functioning correctly. If issues persist, consult a certified technician for further diagnosis and repair.

Q5

How can I optimize the performance of the d8f transmission in my Kia Sorento?

To optimize the d8f transmission’s performance, use the recommended transmission fluid and adhere to the maintenance schedule. Avoid aggressive driving and ensure the engine is properly tuned. Regularly update the transmission control module software if available. Installing an aftermarket transmission cooler can also improve performance, especially in high-stress conditions. Properly inflate tires and maintain the vehicle’s overall health for optimal transmission efficiency.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Kia Sorento d8f Transmission Service Manual

Coming Soon

Detailed guide covering maintenance, repair, and technical specifications for the d8f transmission in the 2021-Present Kia Sorento.

Technical Service Bulletin: d8f Transmission Updates

Coming Soon

Latest updates and fixes for the d8f transmission, addressing common issues and software enhancements.

Kia Sorento Transmission Parts Catalog

Coming Soon

Comprehensive catalog of genuine parts and accessories for the d8f transmission in the Kia Sorento.

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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

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