Volvo Volvo XC90 2015-present

Volvo Volvo XC90 2015-present TG-81 Transmission Specifications

This document provides detailed transmission specifications for the 2015-Present Volvo XC90, covering essential technical details such as gear ratios, torque capacity, and fluid requirements. These specifications are crucial for understanding the vehicle's performance, maintenance needs, and compatibility with aftermarket upgrades. Whether you're a technician, enthusiast, or owner, this guide offers valuable insights into the TG-81 transmission system, ensuring optimal operation and longevity. The information is sourced from official service manuals and technical resources, making it a reliable reference for diagnostics, repairs, and performance tuning.

Updated Jan 25, 2025

Overview Specifications

This document provides detailed specifications and technical information about the TG-81 transmission used in the 2015-Present Volvo XC90. It is designed to assist technicians, engineers, and enthusiasts in understanding the transmission's features, maintenance, and performance. Use this guide to navigate through sections, search for specific details, and access quick reference data. Whether you're performing diagnostics or general maintenance, this document is your comprehensive resource for the TG-81 transmission.

How to Use

To search for specific information, use the 'Ctrl + F' function on your keyboard. Enter keywords related to your query, such as 'torque capacity' or 'fluid type,' to quickly locate relevant sections or details.

This document is organized into major sections and subsections. Use the table of contents or scroll through the document to find the desired section. Each section includes a detailed description and a list of technical points for easy reference.

Key Specifications

▲

Transmission Type

8-speed automatic

■

Torque Capacity

480 Nm

●

Fluid Capacity

7.5 liters

◆

Shift Response Time

150 ms

★

Service Interval

120,000 km

Available Specifications

Transmission Design

This section covers the fundamental design aspects of the TG-81 transmission, including its architecture, components, and engineering principles. Learn about the transmission's construction, materials used, and innovative features that enhance its performance and durability.

Architecture Overview

8-speed automatic transmission
Longitudinal placement for AWD compatibility
Lightweight aluminum casing
Compact design for improved fuel efficiency
Integrated torque converter
Advanced lubrication system

Key Components

High-strength gear sets
Electro-hydraulic control module
Multi-plate wet clutch system
Sealed bearings for reduced maintenance
Precision-engineered shift forks
Integrated cooling system

Performance Specifications

Explore the performance capabilities of the TG-81 transmission, including torque handling, shift response times, and efficiency metrics. This section provides detailed data to help you understand how the transmission enhances the driving experience in the Volvo XC90.

Torque and Power Handling

Maximum torque capacity: 480 Nm
Compatible with petrol and diesel engines
Optimized for engines up to 320 hp
Smooth power delivery across RPM ranges
Enhanced load distribution for durability
Adaptive shift mapping for varying loads

Shift Characteristics

Shift response time: 150 milliseconds
Seamless gear transitions
Sport mode for aggressive shifting
Eco mode for fuel-efficient driving
Manual shift override capability
Adaptive learning for driver behavior

Maintenance and Service

This section provides essential information on maintaining and servicing the TG-81 transmission. From fluid requirements to diagnostic procedures, find everything you need to ensure optimal performance and longevity.

Fluid Specifications

Recommended fluid: Volvo ATF 12.5
Fluid capacity: 7.5 liters
Extended service intervals: 120,000 km
Fluid temperature monitoring system
Sealed for life under normal conditions
Drain and refill procedure details

Diagnostic Tools

Compatible with Volvo VIDA software
Real-time data monitoring
Fault code retrieval and analysis
Transmission adaptation reset procedure
Shift solenoid testing functionality
Comprehensive service history logging

Search Specifications

Search by specification name, value, or description

Transmission Specifications

Overview

Type: 8-speed automatic

Configuration: Longitudinal

Platform: SPA (Scalable Product Architecture)

Material: Aluminum alloy casing

Location: Mounted longitudinally behind the engine

Dimensions

Length: 28.7 in (729 mm)

Width: 24.4 in (620 mm)

Height: 19.3 in (490 mm)

Weight: 187 lbs (85 kg)

input Shaft Length: 15.7 in (400 mm)

Output Shaft Length: 17.3 in (440 mm)

Fluid Capacity: 9.8 quarts (9.3 liters)

Materials

Casing: Aluminum alloy

Gears: Case-hardened steel

Clutch Packs: Composite friction materials

Seals: Fluoroelastomer

Sensors: High-temperature resistant polymers

Features

Drive Modes

Comfort
Dynamic
Eco
Off-Road

Shift Technologies

Adaptive shift logic
Manual shift mode
Quick-shift capability
Grade assist function

Cooling System

Integrated transmission oil cooler
Active thermal management
Temperature-controlled fan

Electronic Features

Electronic shift-by-wire
Integrated control module
CAN bus communication
Failsafe mode

Performance Features

Torque capacity up to 480 Nm
0-60 mph shift time of 200ms
Optimized gear ratios
Smooth shift programming

Safety Features

Protection Systems

Overheat protection
Overload protection
Emergency neutral mode

Monitoring Systems

Real-time temperature monitoring
Pressure sensor array
Shift position verification

Fail-Safes

Limp-home mode
Automatic park engage
Manual shift override

Comfort Features

Noise Reduction

Precision gear machining
Hydraulic damper system
Sound insulation casing

Shift Quality

Adaptive shift programming
Torque converter lockup
Smooth transition control

Driving Assistance

Hill start assist
Trailer stability control
Automatic grade braking

Accessories

Mounting Components

Transmission crossmember
Engine adapter plate
Mounting brackets

Cooling System

Transmission oil cooler
Cooler lines
Thermal sensor

Electronic Components

Control module
Wiring harness
Shift position sensor

Maintenance

Service interval: Every 60,000 miles or 48 months

Service Items

Fluid and filter replacement
Pan gasket inspection
Shift mechanism adjustment
Electrical connections check
Mounting system inspection

Maintenance Notes

Use only Volvo-approved transmission fluid
Reset adaptation values after service
Perform software updates if available

Warranty

Basic: Miles: 50,000
Years: 4
Coverage: Manufacturing defects

Powertrain: Miles: 100,000
Years: 6
Coverage: Transmission components

Corrosion: Miles: Unlimited
Years: 12
Coverage: Casing and external components

Extended: Miles: 120,000
Years: 8
Coverage: Optional extended warranty

Production Details

Manufacturer: Aisin AW Co., Ltd.

Manufacturing Process

Precision CNC machining
Automated assembly
Laser alignment
Hydrostatic testing

Quality Control: Testing Procedures: End-of-line dyno testing, Pressure testing, Shift quality verification
inspection Points: 42
Rejection Rate: 0.2%

Sustainability Practices

Recycled aluminum usage
Closed-loop coolant system
Energy-efficient manufacturing

Production Metrics: Units Per Day: 320
Lead Time: 12 weeks
Defects Per Million: 150

Service Information for tg 81 transmission Service

Maintenance and service requirements specific to this component

60,000

Transmission fluid and filter replacement
Pan gasket inspection and replacement
Shift linkage adjustment
Electrical connections check
Mounting system inspection

Use only Volvo-approved ATF and follow torque specifications

120,000

Complete transmission service
Valve body inspection
Solenoid function test
Cooling system flush
Software update check

Requires specialized diagnostic equipment

180,000

144

Full transmission overhaul
Clutch pack inspection
Bearing replacement
Seal replacement
Shift quality verification

Consider replacement if repair costs exceed 50% of new unit value

Common Questions

Find answers to common questions about torque specifications

Is the TG-81 transmission compatible with all 2015-Present Volvo XC90 models?

The TG-81 transmission is compatible with all 2015-Present Volvo XC90 models equipped with a 2.0L turbocharged or supercharged engine. It is specifically designed for vehicles using the 8-speed automatic transmission system. Always verify your vehicle's specifications with your dealer or the manufacturer before installation to ensure compatibility.

What are the maintenance requirements for the TG-81 transmission?

The TG-81 transmission requires regular maintenance to ensure optimal performance. This includes checking and replacing the transmission fluid every 60,000 miles or as recommended by Volvo. Inspect the transmission for leaks, wear, and damage during routine service. Follow the manufacturer’s guidelines for fluid type and replacement procedures to avoid voiding the warranty.

How do I install or replace the TG-81 transmission in a Volvo XC90?

To install or replace the TG-81 transmission, first, disconnect the battery and remove the transmission mounts. Drain the transmission fluid and detach the driveshaft and electrical connectors. Carefully lower the transmission using a jack and replace it with the new unit. Reconnect all components, refill with the correct transmission fluid, and test the system for proper operation. Professional installation is recommended.

What are common troubleshooting steps for the TG-81 transmission?

Common issues with the TG-81 transmission include rough shifting, delayed engagement, and fluid leaks. Start by checking the transmission fluid level and condition. Inspect for error codes using a diagnostic tool and examine the transmission mounts and electrical connections. If problems persist, consult a certified technician for further diagnosis and repair.

How can I optimize the performance of the TG-81 transmission?

To optimize the TG-81 transmission’s performance, ensure regular maintenance, including fluid changes and inspections. Use only manufacturer-recommended transmission fluid and avoid aggressive driving habits. Consider upgrading to a high-performance transmission cooler for better heat dissipation. Regularly update the vehicle’s software to benefit from performance enhancements and bug fixes.

Factory Service Resources

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

Volvo XC90 TG-81 Transmission Service Manual

Coming Soon

This manual provides detailed instructions for servicing and maintaining the TG-81 transmission, including fluid specifications, torque settings, and diagnostic procedures.

TG-81 Transmission Technical Bulletin

Coming Soon

This bulletin addresses common issues, updates, and recalls related to the TG-81 transmission, ensuring users have the latest information and solutions.

Volvo XC90 Transmission Parts Catalog

Coming Soon

This catalog lists all compatible parts and accessories for the TG-81 transmission, including seals, gaskets, and replacement components.

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General Information

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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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