These guides are written for the way vehicles are used in and around Sydney. Each one explains what goes wrong, why it happens here and what to do about it, whether you are doing the job yourself or booking an auto electrician.
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Apartment Car Parks and Flat Batteries in Inner Sydney
Car flat in your apartment basement? How Sydney unit dwellers can keep batteries charged, use maintainers with strata OK and jump-start in tight spaces.
Boat Trailer Wiring for Sydney Boat Ramps
Salt water kills boat trailer lights and plugs. How to set up trailer wiring that lasts at Botany Bay, Port Hacking, Pittwater and Georges River ramps.
Car Batteries and Western Sydney Heat: Penrith to Parramatta
Western Sydney summers are much hotter than the coast. Learn how heat wears out car batteries, how to test yours and which replacement suits your car.
Choosing a Mobile Auto Electrician in Sydney
When a mobile auto electrician makes sense in Sydney, what to say on the phone, apartment and street access, tolls, NSW licence checks and getting a quote.
Dashcams and Reversing Cameras in Sydney: Fitting Guide
Hardwiring a dashcam in Sydney without a flat battery, where NSW rules let you mount it, reversing cameras for tight driveways, and fusing it right.
Fleet and Truck Electrics in Western Sydney
24 V truck electrics for Western Sydney fleets: preventive maintenance, telematics and camera draw, reversing aids, compliant lighting and depot servicing.
Hybrids, EVs and the 12V Battery: A Sydney Owner's Guide
Why a Sydney hybrid or EV can still be stopped by a flat 12V battery, what owners can safely check, jump-start cautions and home or apartment charging.
Rats, Possums and Chewed Car Wiring in Sydney
Why rats and possums get into Sydney engine bays, signs of chewed car wiring, deterrents that help, insurance basics and why repairs need proper joins.
Short Trips, Sydney Traffic and Flat Batteries
Sydney traffic, tunnels and short trips can leave your battery undercharged. Learn how stop-start, smart alternators and idle cars affect your battery.
Storm and Hail Season Checks for Sydney Drivers
Get your car ready for Sydney's storm season. Check wipers, lights and drains, spot water in wiring and know what to do after driving through floodwater.
Towing a Caravan Out of Sydney: Electrics Checklist
Caravan electrics for trips out of Sydney: brake controllers, the trailer brake rules, 12-pin vs 7-pin plugs, DC-DC chargers, breakaway systems and checks.
Tradie Ute and Van Electrics in Sydney
Inverters, work lights, beacons, dual batteries and tool charging for Sydney tradie utes and vans, with fusing, cable sizing, security and NSW light rules.
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Before you work on vehicle electrics
- Disconnect the negative battery terminal before working on wiring, and reconnect it last.
- Replace a blown fuse only with one of the same rating. If it blows again, there is a fault to find, not a fuse to upgrade.
- Many newer vehicles have a battery management system. After a battery change, some need the new battery registered with a scan tool so it charges correctly.
- Hybrid and electric vehicles have high-voltage systems, usually with orange cables. Leave anything near them to a qualified technician.
When to call an auto electrician
Book a professional for warning lights that keep coming back, faults that come and go, anything involving airbags or high-voltage parts, and new circuits such as dual battery systems, brake controllers or extra lighting on a 4WD or caravan. Find one in the Sydney directory.