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MAZDA 6 Used Car Review

Pros

Cons

  • A regular benchmark for handling in medium-car segment
  • Spacious, comfortable and well-presented cabin
  • Latest model well equipped
  • Recent updates have improved availability of safety features
  • Wagon variant not as spacious or practical as it could have been
  • 2.5-litre petrol engine lacks torque
  • Elevated road noise levels
  • No current performance model or all-wheel-drive option
This is general information and should not be relied on as purchasing advice.
carsMazdaMazda6AutomaticAir conditioning?: YesClear all

Top2020 Mazda 6 GL1033 GT SKYACTIV-Drive Grey 6 Speed Sports Automatic Sedan

  • 186412 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

Apple CarPlay & Android Auto Reverse Camera with Sensors Active Lane Keep Assist Sat Nav Heated Front Seats 2 KEYS We are Western Victoria's Biggest Used Vehicle dealer located just 10 minutes from the famous Sovereign Hill with a wide range of pre-owned vehicles in stock ready to choose from along with several New Vehicle options on site with Kia, Peugeot, LDV and SsangYong on offer. We have multiple in-house finance options available to tailor to your needs. Purchase with peace

$23,444 Drive Away^
Wendouree, VIC

Dealer used
29/04/2024

Top2004 Mazda 6 GG1031 MY04 Classic Silver 4 Speed Sports Automatic Hatchback

  • 151456 km
  • Hatchback
  • Auto
  • 4 cyl 2.3L

MAY MADNESS SALE ON NOW!! FREE TANK OF FUEL, FREE 1 YEAR EMERALD WARRANTY!! **(conditions apply) NEVER TO BE REPEATED PRICES!! SAVE $$$ OFF ALREADY LOW PRICES!! DONT MISS OUT ON OUR ONLINE* SALE!!! ALL PRICE ARE DRIVE AWAY NO MORE TO PAY (REGO/REGO TRANSFER/PPSR) BUT BE QUICK, CAUSE ONCE THEYRE GONE, THEYRE GONE!!! Are you looking for a really clean automatic runabout? I think I have what you need! Check out this 2004 Mazda 6 Classic 2.3L petrol engine Automatic Transmission Registration

$10,990 Drive Away^
South Toowoomba, QLD

Dealer used
29/04/2024

Top2024 Mazda 6 GL1033 T 6AUTO SEDAN G25 SPORT Deep Crystal Blue 6 Speed Automatic Sedan

  • 25 km
  • Other
  • Auto
  • 4

Don’t join a waitlist! This car is in stock right now for immediate delivery. We invite you to buy with confidence from one of QLD’s best rated dealerships – don’t take our word for it, with a positive 4.8 STAR rating and over 3000 reviews – see what our customers have to say! Your new Mazda is backed by Mazda’s 5YR unlimited kilometre factory warranty and national premium roadside assistance. As a locally owned family business in Brisbane we pride ourselves on delivering a Mazda owners

$40,102 Drive Away^
Mount Gravatt, QLD

Dealer new
30/04/2024

Top2006 MAZDA6 AUTO 4CYL 2.3L 238,000KMs

  • 238000 km
  • Hatchback
  • Auto
  • 4 cyl 2.3L

2006 MAZDA6 AUTO 4CYL 2.3L 238,000KMs 🔥🔥🔥 CLEARANCE SALE 🔥🔥🔥 🏁 MAZDA6 AUTO 4CYL 2.3L 238,000KMs 🏁 ODO: 238,000KMs 🏁 CLEAR "PPSR" 🏁 WARRANTY 🏁 2KEYs 🏁 AUTO 🏁 4CYL 🏁 RWC 🏁 2.3L 🏁🏁 6MONTHS FRESH REGO AVAILABLE UPON YOUR REQUEST [$450 SURCHARGE] 🏁🏁 THE CAR COMES WITH ROAD WORTHY CERTIFICATE 🏁🏁 THE CAR COMES WITH DEALER WARRANTY 💥💥 WE HAVE ONSITE FINANCE AND WILL CERTAINLY GET YOU THE BEST POSSIBLE RATE AND SUITABLE TERMS ACCORDING TO YOUR CONDITION ✅ CENTRELINK CLIEN

$5,500 Excl. Gov. Charges
Slacks Creek, QLD

Dealer used
29/04/2024

Top2017 Mazda 6 GL1031 Touring SKYACTIV-Drive White 6 Speed Sports Automatic Wagon

  • 96710 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

**** Yes this vehicle is available now and ready for immediate delivery **** This one owner wagon was sold and serviced by us from new and is fitted with genuine Mazda accessories including mats, roof racks, towbar. Optioned with window tint, 2 keys and includes our 10 year/175,000km warranty and a full tank of fuel. Located one hour north of Brisbane and guaranteed to pass any inspection. Further discounts may apply if you finance with us so ask about our bank beating finance plans. We despera

$24,970 Excl. Gov. Charges
Maroochydore, QLD

Dealer used
24 hours ago

Top2013 Mazda 6 6C GT White 6 Speed Automatic Sedan

  • 181178 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

Unleash the Power of Luxury with this Stunning 2013 MAZDA6 GT! Packed with Features! This MAZDA6 GT 6C is a true gem, boasting a powerful yet efficient 2.5L engine and a smooth 6-speed automatic transmission. With a sleek white exterior and luxurious leather upholstery, this sedan is sure to turn heads wherever you go. From heated front seats to a power sunroof, this vehicle is designed with your comfort in mind. Stay connected on the go with mobile phone connectivity and satellite navigation

$14,990 Excl. Gov. Charges
Lansvale, NSW

Dealer used
30/04/2024

2008 Mazda 6 GH1051 Luxury Maroon 5 Speed Sports Automatic Sedan

  • 150045 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

***MASSIVE CLEARANCE SALE NOW ON*** AMAZING CAR AND SO HARD TO FIND IN A LUXURY AND ALSO WITH A SUNROOF. ALL CLEAR TITLES PROVIDED ASWELL. RED LOOKS SENSATIONAL. THIS CAR WILL NOT DISAPOINT AT ALL FOR WHATS ON OFFER FOR A SAFE, STYLISH ECONOMICAL WAGON WITH SO MANY FEATURES AND MAZDA'S QUALITY ENGINEERING ASWELL AS OVERALL BUILD QUALITY. THIS CAR WILL 100 PERCENT IMPRESS WITH FEATURES ETC AND THE BACKING OF BEING THE QUALITY OF MAZDA FOR YOUR RESEARCH AND MECHANICS OPINIONS ETC. THIS CAR IS COM

$9,889 Drive Away^
Kedron, QLD

Dealer used
7 minutes ago

2018 Mazda 6 GL1032 Atenza SKYACTIV-Drive Grey 6 Speed Sports Automatic Sedan

  • 95717 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

We are a Trade in Vehicle Clearance Centre we have cars at unbelievable prices ready to go!! Open 7 days a week, inspections are welcomed and test drives are available, We can also do video walkarounds of the vehicles via facetime etc , Our Dealership is located just 90 Minutes North of Sydney. Our vehicles are workshop tested and serviced. Easy on-site finance. We offer an extensive range of over 100 used vehicles at all budget levels. And dont forget your trade

$25,990.01 Excl. Gov. Charges
Glendale, NSW

Dealer used
12 minutes ago

2023 Mazda 6 GL1033 G25 SKYACTIV-Drive Touring Red 6 Speed Sports Automatic Wagon

  • 9660 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

The Mazda 6 GL1033 G25 Touring offers dynamic driving characteristics, with responsive handling and a smooth ride quality. The chassis is engineered for agility and stability, providing confident performance through corners and on straightaways. Mazda's G-Vectoring Control Plus technology helps improve handling and stability by adjusting engine torque in response to steering inputs. Additionally, the Mazda 6's electric power steering system offers precise and responsive steering feel, enhancing

$41,880 Excl. Gov. Charges
Pinkenba, QLD

Dealer used
12 minutes ago

2007 Mazda 6 GG1032 Limited Gold 5 Speed Sports Automatic Sedan

  • 172107 km
  • Sedan
  • Auto
  • 4 cyl 2.3L

2007 Mazda 6 Sedan auto with 172,000klms! Drives great and well looked after. Standard with alloy wheels, cruise control, cold A/C and much more. Vehicle comes with registration, stamp duty & statutory warranty included. Call today to arrange a test drive.

$8,490 Drive Away^
Nundah, QLD

Dealer used
37 minutes ago

2014 Mazda 6 6C GT Red 6 Speed Automatic Wagon

  • 233633 km
  • Wagon
  • Auto
  • 4 cyl 2.2L

......12 MONTH WARRANTY & 3 MONTHS ROADSIDE ASSIST INCLUDED.... We are an independant family run business operating from morayfield for the last 17 years with 5000 plus happy customers, we stand behind the quality and excellent value in all of our cars.....This vehicle is supplied with a current QLD Safety Cert (RWC) and a clear title PPSR Certificate, we sell cars throughout Australia so they are advertised excluding Registration and Government charges. Please confirm all advertised details pr

$11,989 Excl. Gov. Charges
Morayfield, QLD

Dealer used
37 minutes ago

2010 Mazda 6 GH1052 MY10 Touring Grey 5 Speed Sports Automatic Wagon

  • 158830 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

Get behind the wheel of this stylish 2010 Mazda 6 Touring Wagon for just $14,990 AUD! With its sleek grey exterior and black interior, this car is sure to turn heads on the road. Equipped with a range of amazing features including 17" alloy wheels, a 6 speaker stereo system, climate control air conditioning, and Bluetooth connectivity, you'll be cruising in comfort and style wherever you go. Not only does this Mazda 6 offer luxury and convenience, but it also prioritizes safety with ABS brake

$14,990 Drive Away^
Ringwood, VIC

Dealer used
2 hours ago

2010 Mazda 6 GH1052 MY10 Touring Blue 5 Speed Sports Automatic Wagon

  • 198765 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

Looking for a reliable and spacious family wagon? Look no further than this 2010 Mazda 6 Touring Wagon. Priced at only $9,999, this car comes packed with features that will make your daily commute a breeze. With a sleek blue exterior and a comfortable and roomy interior, this Mazda 6 is perfect for long drives or running errands around town. The 17" alloy wheels give it a sporty look, while the climate control, cruise control, and adjustable seats ensure a comfortable ride for everyone. Safet

$9,999 Excl. Gov. Charges
Yagoona, NSW

Dealer used
2 hours ago

2015 Mazda 6 GJ1032 Touring SKYACTIV-Drive Charcoal 6 Speed Sports Automatic Sedan

  • 129063 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

Why Pay more? If you are looking for Adelaide's largest selection of Quality cheap cars look no further than easyauto123. Located just 5 minutes from the Adelaide CBD in Mile End South. We have hundreds of Roadworthy cars starting from just $1,987 all undercover in 1 location! We can bring the car to your home/office or help with a virtual appointment, so why pay more and do things the hard way? easyauto123 car buying made easy! At easyauto123 - Australia's fastest-growing branded u

$17,856 Excl. Gov. Charges
Mile End South, SA

Dealer used
2 hours ago

2018 MAZDA Mazda6 TOURING

  • 33000 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

2018 White MAZDA 6 TOURING SEDAN $27,990 Inc RWC, REGO & WARRANTY ⭐FREE a FIVE YEAR WARRANTY⭐ 🔹5 Star Safety Rating 🔹ONLY 33,000 kms 🔹4 Cyl Petrol 🔹6 Speed Automatic 🔹Fuel Efficiency 6.6L/100km 🔹Keyless Entry and Drive 🔹Multi Function Steering Wheel 🔹MP3 Compatible Audio/CD Player 🔹Mobile Phone Connectivity 🔹Electric Parking Brake 🔸Alloy wheels 🔸Aux in & USB 🔸Cruise Control Intelligent/Active 🔸Bluetooth 🔸Reverse Camera 🔸Parking Sensors Front & Back 🔸Heads up Display 🔸Satelli

$27,990 Excl. Gov. Charges
Coopers Plains, QLD

Dealer used
2 hours ago

2014 Mazda 6 GJ1032 Sport SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 109302 km
  • Other
  • Auto
  • 4

Spacious wide-bodied sedan with the powerful 2.5 litre engine, six speed T-Bar Tiptronic auto, cruise and traction control, front side air bags, SatNav, Bluetooth, smart phone connectivity, selectable drive modes, premium sports styled seats, push button start, alloy wheels, tow bar, reverse camera plus more. Moderate 109,000kms with service history and 2 keys.

$17,999 Excl. Gov. Charges
Rockingham, WA

Dealer used
2 hours ago

2009 Mazda 6 GH1051 MY09 Classic Silver 5 Speed Sports Automatic Sedan

  • 222776 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

We have over 300 good quality cars at unbeatable prices, Auto or Manual, SUV or Wagon, Coupe or Convertible, Sunroof , Hatch or Sedan, Petrol or Turbo Diesel, 4x4 or 4x2 All cars are workshop tested, and optional parts and labour warranties are available .• *Pension Finance Available (Single Parent Payments, Parenting Payment, Disability Pension) • *Fee Free, No Interest Loan for Vehicles That Can Be Paid Off with Simple Fortnightly for ppl on Government payments. • *Dealer Charges Apply. •

$9,995 Excl. Gov. Charges
Minchinbury, NSW

Dealer used
3 hours ago

2014 Mazda 6 GJ1032 Touring SKYACTIV-Drive Black 6 Speed Sports Automatic Sedan

  • 143000 km
  • Other
  • Auto
  • 4

Mazda 6 Touring sedan in black duco with black leather interior and sun roof. Excellent service history. * VACC Approved Dealer * Trade In your old car for a better deal on your New Car * This car is handpicked by our experienced staff ready for immediate delivery Nation wide * Comprehensive Extended warranty & Finance packages available on all cars No Application refused * All cars Mechanically checked and prepared for sale at the highest quality * Transport quotes to anywhere in Australi

$17,888 Excl. Gov. Charges
South Melbourne, VIC

Dealer used
3 hours ago

2022 Mazda 6 GL1033 GT SP SKYACTIV-Drive Black 6 Speed Sports Automatic Sedan

  • 21372 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

JUST ARRIVED!! 2022 Mazda 6 GT SP 1 OWNER / SERVICE HISTORY / BALANCE OF NEW CAR WARRANTY - PREMIUM INTERIOR - ELECTRIC SEATS WITH MEMORY - APPLECARPLAY/ANDROID - GPS - BLUETOOTH/USB/FM - RADAR CRUISE CONTROL - LANE DEPARTURE ASSIST - REVERSE CAMERA - HANDS FREE AND MUCH MORE!! PLEASE MAKE AN INQUIRY OR GIVE US A CALL TO ARRANGE A TEST DRIVE!!! ALL OUR VEHICLES ARE WORKSHOP TESTED AND UNDERGO A VIGOROUS MECHANICAL AND SAFETY INSPECTION TO ENSURE THEIR QUALITY AND SAFETY. STATUTORY WARRA

$38,950 Drive Away^
Carlton, VIC

Dealer used
3 hours ago

2010 MAZDA6 TOURING 5 SP AUTO WAGON

  • 185000 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

2010 Mazda 6 Wagon Touring 184000km Roof racks,tow bar,climate control,cruise control,full leather interior.good tyres,does have a scratch down the side of the car that has been touched up,drives as good as new

$7,499
Wollongong, NSW

3 hours ago

2019 Mazda 6 GL1033 Touring SKYACTIV-Drive Blue 6 Speed Sports Automatic Sedan

  • 68873 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

Buy with confidence knowing when you buy your Pre-Loved Car from us you will drive out with complete peace of mind in a vehicle that has been inspected, tested and approved by our licensed technicians. For your peace of mind our cars come with: 1. 12 Month Roadside Assist. 2. 48-hour Money Back Guarantee. 3. Fixed Price. We have done the research for you, no need to haggle. 4. No immediate expenses registration, or service on your car. Located centrally, only 20 minutes from Melbourne CBD and

$27,465 Drive Away^
Strathmore Heights, VIC

Dealer used
3 hours ago

2021 Mazda 6 6C MY18 (gl) Touring Blue Steptronic Sedan

  • 11255 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

2 Keys Front and Rear Sensors Electric Memory Drivers Seat Blind Spot Monitor Rear AC Vents Dual Zone AC Radar Cruise Control Bose Speakers Buy with confidence knowing when you buy your Pre-Loved Car from us you will drive out with complete peace of mind in a vehicle that has been inspected, tested and approved by our licensed technicians. For your peace of mind our cars come with: 1. 12 Month Protection Plan. 2. 12 Month Roadside Assist. 3. 7 Day Money Back Guarantee. 4. Fixed Price. W

$33,465 Drive Away^
Strathmore Heights, VIC

Dealer used
3 hours ago

2012 Mazda 6 GH Series 2 Touring Grey Steptronic Sedan

  • 53369 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

2 keys Service history Cruise control Leather interior Hands free connectivity Front and rear parking sensors Automatic headlights Front and rear floor mats Buy with confidence knowing when you buy your Pre-Loved Car from us you will drive out with complete peace of mind in a vehicle that has been inspected, tested and approved by our licensed technicians. For your peace of mind our cars come with: 1. 12 Month Roadside Assist. 2. 48-hour Money Back Guarantee. 3. Fixed Price. We h

$15,986 Drive Away^
Strathmore Heights, VIC

Dealer used
3 hours ago

2010 Mazda 6 GH1051 MY09 Classic Silver 5 Speed Sports Automatic Wagon

  • 258460 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

GENUINE ENQUIRIES ONLY!!! PLEASE READ THE AD CAREFYLLY BEFORE ENQUIRING AND BE AWARE WE WILL ATTEMP TO CONTACT YOU ON SEVERAL OCCASIONS TO DISCUSS YOUR ENQUIRY SO IF YOUR JUST IN THE BROWSING STAGE IT MAY BE BEST TO RESERVE YOUR ENQUIRY FOR NOW THIS VEHICLE HAS BEEN WORKSHOPED SO YOU CAN BUY WITH CONFIDENCE!! THIS VEHICLE REPRESENTS GREAT VALUE AND IS PRESENTED IN EXCELLENT CONDITION FOR ITS AGE WITH LOW KILOMETERS FOR THE AGE!! VEHICLE COMES WITH MANY CREATURE COMFORTS, AIR CON, POWER OPTIO

$7,995 Excl. Gov. Charges
Minchinbury, NSW

Dealer used
4 hours ago

2007 Mazda 6 GG1032 MY07 Sports Grey Metallic 5 Speed Sports Automatic Hatchback

  • 328369 km
  • Hatchback
  • Auto
  • 4 cyl 2.3L

FULL SERVICE HISTORY 2 KEYS HAS NOT MISSED A SERVICE SINCE NEW !!!!!!!DRIVES EXCELLENT Looking for a reliable and stylish hatchback? Look no further! This Mazda 6 Sports Hatchback is the perfect choice for anyone in need of a versatile and comfortable ride. With features like climate control, cruise control, and a 6-disc in-dash CD stacker, this vehicle has everything you need for a smooth and enjoyable driving experience. Plus, with its sleek grey metallic exterior and matching interior, you'l

$5,995 Excl. Gov. Charges
Minchinbury, NSW

Dealer used
4 hours ago

2012 Mazda 6 GJ1021 Touring SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 288994 km
  • Sedan
  • Auto
  • 4 cyl 2.2L

`Quality vehicles at affordable prices`` We offer great service in finance with our partner Ezilend, past credit problems are ok, click here for no obligation pre approval. https://ezilend.com.au/p/ACSG We are a small family owned and operated business located in Western Sydney just off the M4 between Parramatta and Penrith. With over 15 years experience in selling and financing vehicles, we do everything required to provide a quality vehicle every time. All of our cars come with Roadworthy

$10,995 Excl. Gov. Charges
Minchinbury, NSW

Dealer used
4 hours ago

2002 Mazda 6 Limited ! Serviced & Inspected !

  • 226799 km
  • Sedan
  • Auto
  • 4 cyl 2.3L

This Mazda 6 represents the perfect everyday sedan. It is ideal for many uses ensuring your satisfaction for whether it is a car for daily commuting, the family or even business use. With its sharp looks and great features it will not disappoint. Be sure that this Mazda is of the highest quality as it looks and drives like brand new and has been very well taken care of. We have also completed a full service and inspection at our onsite workshop ensuring that this Mazda has a long life to go !

$5,949 Excl. Gov. Charges
Lansvale, NSW

Dealer used
12 hours ago

MAZDA 6 TOURING 2017

  • 82674 km
  • Sedan
  • Auto
  • 4 cyl 2.2L

Buy your dream car online • Free home delivery in Sydney • Minimum 3 months registration • Comes with minimum 3 month warranty • Tested and inspected by experts in our state-of-the-art facility • 7-day money-back returns • Over 700 quality used cars to choose from This blue MAZDA 6 TOURING is in excellent condition. This is a 5 seat, 4 door vehicle with automatic transmission. It has travelled 82674 km during its lifetime. It has a diesel fuel system with consumption of 5.4 L/100 k

$22,490 Excl. Gov. Charges
Alexandria, NSW

Dealer used
12 hours ago

2015 Mazda 6 GJ1022 Touring SKYACTIV-Drive Silver 6 Speed Sports Automatic Sedan

  • 146870 km
  • Sedan
  • Auto
  • 4 cyl 2.2L

YES IT IS AVAILABLE FOR SALE ***TURBO DIESEL*** *** SATELLITE NAVIGATION *** *** SERVICE HISTORY *** 1 OWNER 2015 MAZDA 6 TOURING 2.2L TURBO DIESEL GREY WITH BLACK LEATHER INTERIOR IN EXCELLENT CONDITION INSIDE AND OUT 2.2L TURBO DIESEL SERVICE HISTORY DAYTIME RUNNING LAMPS LED HEADLAMPS & LED TAIL LAMPS GEAR SHIFT PADDLES PARTIAL LEATHER SEATS CRUISE CONTROL MULTIFUNCTION COLOUR CONTROL SCREEN SATELLITE NAVIGATION PREMIUM SOUND BLUETOOTH WITH VOICE RECOGNITION DUAL ZONE CLIMATE CONTR

$16,999 Excl. Gov. Charges
Blacktown, NSW

Dealer used
14 hours ago

2013 Mazda 6 GJ1021 GT SKYACTIV-Drive Onyx Black 6 Speed Sports Automatic Wagon

  • 178145 km
  • Wagon
  • Auto
  • 4 cyl 2.2L

Selling a car can be a stressful process, but not with this Mazda 6 GT Wagon in Onyx Black. Priced at just $19,995 AUD, this 2013 model is sure to catch your attention. Step inside and experience pure luxury with the black leather interior. The adjustable steering column ensures maximum comfort, while the climate control features allow you to create the perfect environment. The 11 speaker stereo system and premium sound will have you enjoying your favorite tunes on every drive. Safety is a to

$18,995 Excl. Gov. Charges
Minchinbury, NSW

Dealer used
16 hours ago

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Overview of the Mazda Mazda6

Overview of the Mazda Mazda6

MAZDA 6 GENERATIONS

2002-2007

2007-2012

2013 onwards

RUNNING COSTS

Fuel Consumption

2.2L 4-cylinder turbo diesel: 5.4 litres per 100km

2.5L 4-cylinder: 6.6 litres per 100km

= Highly economical.

= Good economy.

= Average fuel use.

= Heavy consumption.

Servicing

SIMILAR MODELS TO MAZDA 6

WHAT TO LOOK OUT FOR: MAZDA 6 (2012 to 2016)

Fundamentally a well built car, the Mazda 6 has a pretty good reputation for reliability.

The automatic transmission is one area we'd pay close attention to, though, as there have been reports of failures.

Diesel-particulate filters and their requirement to be cleaned out periodically have been a long-term bug-bear in Mazda (and other modern) diesels.

The computer's way to do this is to inject more fuel into the engine to regenerate the filter, but sometimes that extra fuel finds its way into the sump where it dilutes the engine's lubricant.

But Mazda did develop revised software to help prevent this happening, so it would be wise to check with a dealer to see if a particular vehicle is running the upgraded program.

Mazda is hardly alone with this problem and it's a common one in new-age diesels that only get driven around the suburbs.