Serving Western Sydney since 1980
M&J Auto Electrics – Auto Electrician in Merrylands
Motoring safety is paramount at M&J — SRS and ABS diagnostics and repairs using the latest state-of-the-art scanning equipment, air-con regas, batteries and Smart Start Interlocks. All makes and models, including commercial vehicles.
✓ Established 1980✓ All makes & models✓ Smart Start authorised dealer
What we do
Auto Electrical Services in Merrylands
From starter motors and alternators to air conditioning and alcohol interlocks, our workshop at 173 Pitt St covers the lot — drop and run, we’re only 2 minutes’ walk from transport, the station and the shopping centre.
Auto Electrics
Starter motors, alternators, wiring, central locking, electric windows and cruise/traction control repairs.
Diagnostics
SRS, ABS and engine fault finding with G-Scan 2 multifunctional diagnostic equipment.
Air Conditioning
Regas, leak testing and air-con repairs for all makes and models — from $165.
Smart Start Interlocks
Approved Smart Start installation, servicing and training for NSW interlock drivers.
Car Batteries
Testing, supply and fitting for cars, 4WDs, caravans and commercial vehicles.
Car Lighting
LED upgrades, driving lights, work lights and globes from the brands you trust.
4WD Equipment
Dual battery systems, brake controllers, solar and REDARC vehicle management.
Accessories
Reversing sensors, keyless entry, phone kits, tyre pressure monitors and more.
Why M&J
Why Western Sydney drivers choose M&J
We’ve been established since 1980, servicing customers from all over Sydney. We’ve seen cars and their technology change with every new model — and we’ve adapted, with all the modern equipment needed to service your car.
46+ years of experience
Dedicated to delivering the highest quality of service since 1980.
All makes & models
Australian, European, American, Japanese and Korean — including commercial vehicles.
Modern equipment
G-Scan 2 diagnostics, on-board control module testing and complete ECU repairs.
Easy to reach
2 minutes’ walk from Merrylands station, transport and the shopping centre.
Smart Start Alcohol Interlocks — authorised installer
Proudly distributing Smart Start Interlocks Australia: professionally installed without damage, fully qualified auto electricians, easy-to-use devices and 24/7 phone support. We guide you through the NSW Mandatory Alcohol Interlock Program.
Frequently Asked Questions
Straight answers on pricing, timing and how we work. Can’t see your question? Call us on (02) 9637 3605.
How much does car electrical diagnostics cost?
Diagnostic and servicing work starts at $50 at M&J Auto Electrics. The final cost depends on the fault found and the repair required — we’ll quote you before any work begins.
How much does a SmartStart Interlock installation cost?
SmartStart Interlock installation starts at $500. — we can walk you through what’s involved when you call
How much does a car air conditioning regas cost?
Air conditioning regas starts at $165. The price can vary depending on your vehicle and how much refrigerant is needed.
How long does a SmartStart Interlock installation take?
Installation typically takes 1–2 hours depending on the vehicle. Please book in advance to arrange the installation.
How long does a car air conditioning regas take?
A standard regas takes around 45–60 minutes. If there’s a leak or a fault in the system, diagnosis and repair will add time.
Do you service all areas of Sydney?
We are based in Merrylands, which is in Western Sydney, and we see customers from across the greater Sydney region.
What makes an auto electrician different from a regular mechanic?
Auto electricians specialise in vehicle electrical systems — wiring, sensors, batteries, alternators, and electronic modules — which most general mechanics don’t diagnose in depth. M&J Auto Electrics focuses exclusively on electrical work, so faults get found faster and fixed correctly the first time.
What are the signs my car has an electrical fault?
Common signs include a warning light on your dash, a car that won’t start or starts intermittently, flickering lights, or a battery that keeps going flat. If any of these happen, a diagnostic check starting at $50 will identify the cause.
Why is my check engine light on?
A check engine light means your vehicle’s computer has logged a fault code — it could be anything from a faulty sensor to an emissions issue. A diagnostic scan will read the exact code and tell you what needs fixing.
Where is M&J Auto Electrics located?
We’re at 173 Pitt St, Merrylands NSW 2160. We’re open Monday to Friday, 8:00am to 4:30pm — call us on (02) 9637 3605 to book.
Our Partners
Find us in Merrylands
Let’s Connect!
Send us a message and we’ll get back to you, or call (02) 9637 3605.