Australia's directory of mechanics and motoring services
Describe the job once and we'll match it with up to 3 diesel mechanics in Cardiff.
Based here first, then diesel mechanics by rating, then related trades.
A business is Featured only when it holds our Featured plan; Featured is a listing plan, not a rating.
41 diesel mechanics based in or serving Cardiff; listings updated 7 Oct 2026.
These businesses aren't based in Cardiff but list it as a service area.
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics, Caravan Repairs
Based in Lambton NSW · serves Cardiff
Mechanic in Lambton, NSW for logbook servicing, brake and clutch repairs, inspections and 4WD servicing.
Based in Lambton NSWServes Cardiff
Closed · opens 8:00 am
Mechanics, Auto Electricians, 4x4, Diesel Mechanics
Based in Warners Bay NSW · serves Cardiff
Mechanic in Warners Bay, NSW for logbook servicing, brake repairs, transmission work and diesel repairs.
Based in Warners Bay NSWServes Cardiff
Closed · opens 7:30 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
Based in Charlestown NSW · serves Cardiff
Mechanic in Charlestown, NSW for logbook servicing, vehicle inspections, brake and clutch repairs and air conditioning.
Based in Charlestown NSWServes Cardiff
Closed · opens 7:30 am
Auto Electricians, Mechanics, 4x4, Diesel Mechanics, Towing
Based in Belmont NSW · serves Cardiff
Auto electrician in Belmont, NSW for auto electrical repairs, air conditioning regas, alternators and dual battery systems.
Based in Belmont NSWServes Cardiff
Closed · opens 8:00 am
Auto repairer in Boolaroo, NSW for light vehicle repairs, rego and pink slip inspections, and LPG conversions.
Based in Boolaroo NSWServes Cardiff
Closed · opens 8:00 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
Based in Boolaroo NSW · serves Cardiff
Mechanic in Boolaroo, NSW for logbook servicing, brake and clutch repairs, rego inspections and 4WD servicing.
Based in Boolaroo NSWServes Cardiff
Closed · opens 8:00 am
Auto repair shop in Edgeworth, NSW for logbook servicing, brake and clutch repairs, pink and blue slips, and windscreen replacement.
Based in Edgeworth NSWServes Cardiff
Closed · opens 9:00 am
Mechanics, Auto Electricians, 4x4, Tyres, Diesel Mechanics
Based in Adamstown NSW · serves Cardiff
Car mechanic in Adamstown, NSW for logbook servicing, pink slip inspections and wheel alignments.
Based in Adamstown NSWServes Cardiff
Closed · opens 8:00 am
Mechanics, 4x4, Tyres, Diesel Mechanics
Based in Gateshead NSW · serves Cardiff
Mechanic in Gateshead, NSW for steering and suspension repairs, brake and clutch work, and wheel alignments.
Based in Gateshead NSWServes Cardiff
Closed · opens 8:00 am
Mechanics, 4x4, Diesel Mechanics
Based in Whitebridge NSW · serves Cardiff
Performance and mechanical workshop in Whitebridge, NSW for dyno tuning, engine rebuilds, power upgrades and transmission repairs.
Based in Whitebridge NSWServes Cardiff
Closed · opens 8:30 am
Mechanics, Diesel Mechanics
Based in Bolton Point NSW · serves Cardiff
Diesel mechanic in Bolton Point, NSW, specialising in diesel engine repairs and maintenance for diesel vehicles.
Based in Bolton Point NSWServes Cardiff
Open now · 24 hours
Mechanics, Auto Electricians, Tyres, Diesel Mechanics, Caravan Repairs
Based in Lambton NSW · serves Cardiff
Mechanic in Lambton, NSW for logbook servicing, brake and clutch repairs, diagnostics and roadworthy inspections.
Based in Lambton NSWServes Cardiff
Closed · opens 8:00 am
Machinery repairer and diesel mechanic in Macquarie Hills, NSW for heavy plant repairs, machine rebuilds and engine repairs.
Based in Macquarie Hills NSWServes Cardiff
Closed · opens 7:00 am
Mechanics, Diesel Mechanics, Caravan Repairs
Based in Marmong Point NSW · serves Cardiff
Diesel mechanic and caravan repairer in Marmong Point, NSW, also taking on hydraulic work and boat work.
Based in Marmong Point NSWServes Cardiff
Open now · 24 hours
Performance and general repair workshop in Warners Bay, NSW, for dyno tuning, performance upgrades and logbook servicing.
Based in Warners Bay NSWServes Cardiff
Closed · opens 8:00 am
Auto Electricians, Mechanics, 4x4, Tyres, Diesel Mechanics
Based in Whitebridge NSW · serves Cardiff
Motorcycle and vehicle workshop in Whitebridge, NSW for dyno tuning, logbook servicing, pink slips and tyre fitting.
Based in Whitebridge NSWServes Cardiff
Closed · opens 8:30 am
Mechanics, Auto Electricians, 4x4, Diesel Mechanics
Based in Warners Bay NSW · serves Cardiff
Mechanic in Warners Bay, NSW for logbook servicing, brake and clutch repairs, diesel work and rego inspections.
Based in Warners Bay NSWServes Cardiff
Closed · opens 8:00 am
No diesel mechanics on this page match all of these filters. Untick one, or clear the filters to see all 17 on this page.
Showing 25–41 of 41 diesel mechanics · filters apply to this page only
Tell us about the job and we'll match it with up to 3 diesel mechanics in Cardiff. Your contact details go only to businesses on a paid plan here, and after you send we tell you which businesses got them. Free, no obligation.
Diesel mechanics for diesel servicing and repairs, injectors and fuel systems, DPF cleaning and truck repairs. Mechanics Directory lists 41 diesel mechanics in Cardiff NSW. Listings show the services each business offers, and a rating where there is one.
Compare two or three. Ask whether they work on your make, and on light vehicles, trucks or machinery, whether they can come to you, and for a written quote for parts and labour. A business that is owner verified on Mechanics Directory has confirmed it runs the listing.
It depends on the vehicle or machine, the oil and filters it takes, and whether the injectors, turbo or DPF need work. Asking two or three local diesel mechanics for a written quote is the quickest way to see the going rate in Cardiff.
Licensing depends on the work and the state. Modifications such as GVM upgrades need certifying under your state's rules, and outside Western Australia and the Northern Territory, modifications to heavy vehicles over 4.5 tonnes are regulated by the National Heavy Vehicle Regulator. In New South Wales, a business that repairs vehicles needs a motor vehicle repairer licence from NSW Fair Trading, and the people doing the work generally need a tradesperson certificate (some minor work is exempt). You can check a licence on the NSW Government's online licence check. In New South Wales, autogas (LPG) work is regulated under the Gas and Electricity (Consumer Safety) Regulation 2018; ask for the autogas licence. Listings marked "Credentials listed" show a licence, accreditation or membership on the business's profile. We don't check it, so confirm it with whoever issued it.
A diesel particulate filter (DPF) traps soot from the exhaust and burns it off on longer runs at highway speed. Lots of short trips can stop that happening, so the filter blocks and a warning light comes on. A diesel mechanic can check the filter and clean it or run a forced regeneration.
Some businesses are based in a nearby suburb but cover this area, including mobile mechanics and towing services that come to you. On suburb pages we list businesses based in the suburb first, then the ones that say they serve it.
Tell us about the job once. We match your request with up to 3 diesel mechanics near you. A business on a paid plan here gets it with your name and contact details and can contact you directly. A business on the free plan sees the job and your suburb but not your details, so it can't contact you unless it upgrades. A business that hasn't claimed its listing sees your request only once it claims. After you send, we tell you which applies to each business. It's free and there's no obligation.
