REPLACEMENT RATES FOR MOTOR VEHICLE PARTS AND JOBS Replacement rates reflect the percent of cars that had the relevant part replaced or service performed during a year. Vehicle age has a significant impact on the rate at which different components are replaced. As vehicles grow older, replacement rates tend to increase but level off when vehicles reach the final years of their lifespan. For most repair and maintenance jobs, vehicles in the two intermediate age groups tracked (4-7 years old and 8-11 years old) displayed higher replacement rates than the other two groups (0-3 years old, and 12 years and older). Younger vehicles typically do not experience component failure to the same extent as older vehicles, while vehicles in an intermediate age ranges often require much more maintenance and repair as their mileage increases. Vehicles in the oldest group also need work, but owners tend to avoid non-essential repairs. Replacement Rates by Vehicle Age, 2014 Component/Type of Job All Vehicles 0-3 Years 4-7 Years 8 - 11 Years 12+ Years AC Compressors AC Condensers AC Converted To R134a AC Evaporators AC Recharged AC Tubes/Hoses Replaced AC/Heater Blowers Air Conditioner Repaired Air Filters Alternators Antifreeze Added Ball Joints Batteries Battery Cables Brake Abs Module Brake Calipers Brake Drums Brake Fluid Flush Brake Jobs Brake Master Cylinders Brake Rotors Brake Safety Inspection Brake Shoes & Pads Cabin Air Filters Catalytic Converters Coil Springs CV Boot Covers CV Half Shafts CV Joints Distributor Caps Drive Belt(S) Emission System Repair Engine Computer Engine Cooling Fan Motors Engine Tune-Up Exhaust Pipes Exhaust System Jobs Fuel Filters Fuel Injectors Fuel Pumps Fuel System Cleaning Fuses Head Gasket Headlamp Bulbs Heater Core Ignition Coils Ignition Control Unit Ignition Switch 3.6% 1.8% 0.9% 1.0% 4.5% 1.3% 0.9% 6.4% 40.3% 3.0% 22.3% 2.8% 30.0% 4.0% 1.6% 3.6% 3.0% 3.8% 21.8% 1.1% 12.0% 4.0% 14.1% 9.3% 1.9% 1.2% 0.7% 0.7% 1.2% 2.0% 1.8% 5.2% 1.3% 0.8% 20.6% 3.0% 7.6% 3.6% 0.7% 2.0% 1.3% 6.2% 0.6% 9.0% 0.9% 0.9% 0.9% 1.5% 4.2% 2.1% 1.1% 1.2% 2.0% 1.2% 0.7% 7.6% 36.8% 1.4% 12.2% 1.1% 15.1% 3.5% 2.1% 1.2% 1.2% 2.3% 8.0% 0.4% 4.0% 3.1% 4.2% 12.5% 1.1% 1.5% 0.4% 0.7% 1.0% 1.9% 0.9% 3.6% 2.0% 0.8% 15.1% 1.8% 5.1% 2.1% 0.4% 0.5% 0.7% 3.3% 0.1% 3.5% 0.7% 0.1% 0.3% 0.5% 3.1% 1.8% 0.8% 1.1% 3.3% 1.0% 0.7% 6.0% 50.5% 1.8% 18.1% 1.8% 32.8% 3.3% 1.7% 3.0% 3.0% 3.8% 24.2% 0.6% 13.8% 5.2% 15.4% 15.0% 1.0% 1.2% 0.6% 0.6% 0.8% 1.3% 1.2% 3.9% 1.3% 0.7% 18.6% 2.1% 5.6% 3.2% 0.7% 1.0% 1.3% 4.9% 0.2% 9.8% 0.6% 0.6% 0.9% 1.7% 2.9% 1.5% 0.3% 0.6% 5.0% 1.1% 0.8% 5.0% 44.1% 3.2% 22.1% 2.7% 32.6% 2.7% 1.0% 4.4% 3.7% 4.2% 27.8% 1.0% 15.8% 4.5% 18.8% 10.1% 2.0% 1.1% 0.7% 0.5% 1.1% 0.8% 1.8% 5.7% 1.0% 0.8% 20.1% 2.3% 6.1% 3.2% 0.8% 1.7% 1.3% 6.0% 0.6% 12.9% 0.7% 1.0% 1.1% 2.2% 4.1% 1.8% 1.1% 1.0% 6.4% 1.5% 1.3% 7.0% 34.0% 4.5% 30.4% 4.4% 35.1% 5.5% 1.5% 4.9% 3.5% 4.3% 24.3% 1.8% 13.0% 3.4% 16.0% 3.7% 2.7% 1.2% 0.9% 0.9% 1.7% 3.2% 2.6% 6.6% 1.1% 0.9% 25.3% 4.5% 11.1% 4.9% 0.9% 3.5% 1.4% 8.7% 1.2% 9.1% 1.3% 1.3% 1.0% 1.6% Component/Type Of Job All Vehicles 0-3 Years 4-7 Years 8 - 11 Years 12+ Years Mufflers 3.8% 2.3% 2.8% 2.7% 6.0% Oil Changed 142.8% 131.0% 168.4% 160.8% 123.7% Oil Filters 101.1% 90.9% 118.3% 114.1% 88.7% Oil Pumps 0.6% 0.6% 0.6% 0.6% 0.7% Oxygen Sensors 3.0% 1.2% 1.9% 3.8% 3.9% PCV Valves 1.3% 0.5% 0.9% 1.1% 2.1% Power Steering Fluid Flush 2.5% 1.6% 2.4% 2.6% 3.1% Power Steering Pumps 1.3% 0.7% 1.1% 1.2% 1.8% Radiator Hoses: Lower 1.4% 0.3% 0.7% 1.3% 2.6% Radiator Hoses: Upper 1.7% 0.4% 0.8% 1.4% 3.0% Radiator Repaired 1.1% 0.4% 0.6% 1.1% 1.9% Radiator Replaced 2.0% 0.4% 1.0% 1.8% 3.6% Radiator/Cooling System Flush 3.2% 1.2% 2.4% 3.5% 4.6% Scheduled Maintenance Per Owners Manual 36.1% 50.2% 48.4% 35.9% 21.3% Shock Absorbers: Air 0.8% 0.9% 0.7% 0.6% 0.9% Shock Absorbers: Mac Pherson 0.8% 0.7% 0.7% 0.7% 0.9% Shock Absorbers: Regular 1.0% 0.4% 0.7% 1.2% 1.3% Spark Plug Wires 5.6% 1.9% 3.8% 5.0% 9.0% Spark Plugs 10.7% 4.1% 8.2% 11.0% 15.6% Starters 1.6% 0.2% 0.8% 1.5% 3.0% State/City Emissions Check 10.6% 7.7% 12.2% 12.1% 10.3% Steering Rack 0.5% 0.3% 0.4% 0.5% 0.5% Steering System Repaired 6.1% 2.6% 4.4% 6.5% 8.7% Strut Mounts 1.0% 0.3% 0.8% 1.4% 1.3% Tail Pipes 2.0% 1.1% 1.1% 1.3% 3.3% Thermostats 4.4% 2.0% 2.3% 4.1% 7.0% Tie Rod Ends 2.3% 0.5% 1.5% 3.0% 3.3% Timing Belt 1.6% 0.3% 1.0% 2.3% 2.2% Timing Chain 0.4% 0.2% 0.4% 0.4% 0.4% Tires (New) 31.7% 23.4% 41.1% 36.4% 28.2% Tires Repaired 7.3% 5.9% 7.5% 7.3% 8.1% Trans Fluid Changed 5.3% 2.6% 5.9% 6.4% 5.8% Transmission Filters 2.0% 1.6% 2.1% 2.1% 2.1% Transmission Overhauled 0.7% 0.3% 0.5% 0.7% 1.1% Transmission Replaced 1.0% 0.6% 0.7% 1.0% 1.3% Transmission Seals 0.7% 0.4% 0.6% 0.9% 0.9% Valve Cover Gasket 0.8% 0.2% 0.3% 0.8% 1.4% Water Pumps 2.9% 1.0% 1.9% 3.1% 4.4% Wheel Bearings Replaced 2.4% 1.0% 2.1% 3.0% 3.0% Wheel Bearings Serviced 1.1% 0.8% 1.0% 1.3% 1.3% Wheels Aligned 11.1% 9.0% 14.4% 12.8% 9.2% Wheels Balanced 11.3% 9.0% 14.9% 13.3% 9.2% Window Lift Motors 1.0% 0.4% 0.7% 1.1% 1.4% Windshield Replaced 2.6% 2.4% 2.9% 2.5% 2.6% Wiper Blade(s) Replaced 34.5% 22.8% 41.4% 40.5% 33.2% Wiper Refills/Inserts Replaced 10.1% 7.6% 11.8% 11.5% 9.7% Source: IMR Inc. (www.AutomotiveResearch.com) Continuing Consumer Auto Maintenance Tracking Study. Copyright 2015, IMR Inc. All Rights Reserved. This report and all information contained herein is the property of IMR Inc. Reproduction in whole or in part is prohibited without written permission of IMR Inc. 2016 Digital Auto Care Factbook Copyright © 2015 Auto Care Association 47http://www.AutomotiveResearch.com