2018 Mazda 6
2018 Mazda 6
Overview
The 2018 Mazda 6 is generally considered a reliable vehicle, praised for its engaging driving dynamics, upscale interior, and attractive styling. Mazda’s Skyactiv technology aims to balance performance with fuel efficiency. While most owners report a positive ownership experience with minimal unexpected repairs, like any vehicle, there are specific areas that have seen occasional reports of issues. This analysis focuses on documented technical reliability concerns beyond routine maintenance, providing insights into potential problem areas for the 2018 model year across its available powertrains and key systems.
Engine
2.5L Skyactiv-G (Naturally Aspirated)
Carbon Buildup on Intake Valves
- Symptoms: Reduced engine performance, rough idling, decreased fuel economy.
- Solution: Regular intake valve cleaning (manual or chemical).
- Cost: $150 - $300
Oil Consumption
- Symptoms: Low oil level between changes, blue smoke from exhaust.
- Solution: Check for oil leaks, piston ring issues, or PCV valve problems. May require engine repair.
- Cost: $500 - $2000+
2.5L Skyactiv-G Turbo (Optional)
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Transmission
Skyactiv-Drive 6-Speed Automatic
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Suspension
Standard Independent Suspension
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Electrical
Infotainment System
Software Glitches
- Symptoms: Screen freezing, unresponsiveness, Bluetooth connectivity issues.
- Solution: Software updates, system resets.
- Cost: $0 - $150 (if dealer update required)
Battery Drain
Intermittent Battery Drain
- Symptoms: Dead battery, difficulty starting.
- Solution: Diagnose parasitic draw from modules or accessories.
- Cost: $100 - $500
Exterior
Paint Quality
Chip Resistance
- Symptoms: Paint chipping easily, especially on front bumper and hood.
- Solution: Paint protection film (PPF) or touch-up paint.
- Cost: $50 - $500+
Interior
Leather Upholstery
Wear on Driver’s Seat Bolster
- Symptoms: Cracking or wear on the side of the driver’s seat.
- Solution: Leather conditioning, repair kits, or seat cover.
- Cost: $50 - $300
Summary Verdict
The 2018 Mazda 6 is a solid choice for reliability, with its Skyactiv powertrains and core mechanicals proving robust. The most commonly cited issues tend to be minor and related to the naturally aspirated 2.5L engine’s tendency for carbon buildup and occasional oil consumption, as well as some electrical quirks with the infotainment system and potential battery drain. Exterior paint chip resistance and interior seat wear are also noted but are often cosmetic or manageable. Overall, the 2018 Mazda 6 offers a dependable driving experience with a low likelihood of major mechanical failures, making it a good used car option.