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How reliable is the Acura TSX 2005?

The 2005 Acura TSX is generally regarded as a durable, reliable compact sedan with Honda-level reliability for its era. With regular maintenance, many examples reach high mileages with few serious mechanical problems. Reliability can vary based on individual vehicle history and upkeep.


To understand reliability for the 2005 TSX, this article examines engine and transmission durability, common aging issues, ownership costs, and how major sources assess the model year. It also offers practical guidance for buyers and owners to gauge and maintain reliability.


Reliability at a glance


Here are the core reliability strengths reported for the 2005 TSX by owners and reviewers.



  • Strong engine and drivetrain durability (the TSX uses Honda’s reliable 2.4L i-VTEC engine lineage).

  • Solid build quality and materials that tend to age well with regular maintenance.

  • Good resale value and broad parts availability, easing upkeep and repairs.

  • Balanced ride and handling, with fewer chronic, model-wide mechanical faults reported compared with some peers.


These strengths typically translate into solid long-term reliability when the vehicle receives timely maintenance and common-sense care.


Common issues reported by owners


The following issues recur in owner reports and service data for aging examples, though not every car will experience them.



  • Oil leaks from valve cover gaskets or cam seals, which is a known wear item on older K-series engines.

  • Suspension wear, including worn struts, control arms, and related bushings, as mileage climbs.

  • Electrical/comfort items such as power window regulators and related wiring can fail with age.

  • HVAC system concerns, including A/C compressor or refrigerant leaks and related cooling performance issues.

  • Transmission-related concerns in higher-mileage or aging automatic units, including rough or delayed shifts in some cases; manual transmissions are typically robust when well maintained.


Owners who stay current with maintenance and address issues promptly tend to report continued reliability in daily driving.


Maintenance and ownership costs


Expected ongoing maintenance and typical annual repair costs for a 2005 TSX vary with mileage, usage, and service history.



  • Regular maintenance items: routine oil changes (often synthetic), tire rotations, brakes, and scheduled inspections.

  • Common wear items as the car ages: brakes, tires, and suspension components (shocks/struts, bushings) as needed.

  • Transmission care for automatics: follow the manufacturer’s service recommendations for fluid checks and changes if applicable.

  • Parts availability and labor costs remain reasonable due to Honda-based engineering, which helps keep maintenance within competitive ranges for a used compact luxury sedan.


With proactive care, ownership costs for the 2005 TSX are predictable for its class, though expenses rise with higher mileage and older components.


What to check when buying a used 2005 TSX


When shopping for a used TSX, inspecting the vehicle’s maintenance history and current condition can reveal how reliably it will perform after purchase.



  • Service history: look for regular oil changes, exhaust and engine maintenance, and any timing chain-related service records.

  • Oil leaks or burning oil: inspect the engine bay and under the car for signs of leaks or excessive oil consumption.

  • Suspension and steering components: check for wear in shocks/struts, control arms, and bushings, plus alignment wear.

  • Electrical/comfort systems: verify operation of power windows, locks, climate control, and radio systems.

  • Engine sound and overall drivability: listen for unusual timing chain noise, ticking, or exhaust leaks, and assess throttle response.


Getting a pre-purchase inspection (PPI) by a qualified mechanic is strongly recommended to assess reliability indicators before buying.


Reliability ratings and sources


Industry and consumer views generally rate the 2005 TSX as a reliable choice within its segment, with some variation based on mileage, maintenance history, and driving conditions.



  • Consumer Reports and other reliability indices commonly place the TSX generation (2004–2008) in the above-average to strong reliability range for its era.

  • J.D. Power and similar outlets tend to highlight durable powertrains and solid overall dependability in long-term ownership scenarios.

  • Owner forums and long-term reviews consistently point to the TSX as a durable option when properly cared for, with maintenance history being a key determinant of reliability.


When evaluating a used example, prioritize verified maintenance records and current condition over age alone, as reliability is strongly influenced by how well the car has been cared for.


Summary


Overall, the 2005 Acura TSX delivers strong reliability for its age, with a durable engine, robust drivetrain, and generally solid build quality. Routine maintenance and timely repairs are the biggest factors in preserving reliability, while aging wear items (brakes, suspension, seals, and electrical components) may require attention as miles accumulate. For prospective buyers, a meticulous pre-purchase inspection and a review of service history are the best strategies to gauge reliability and expected long-term performance.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.