Need to contact

Mitsubishi Motors

and make sure they reply?

Mitsubishi Motors Australia (MMAL) supports owners through dealerships, phone lines, and a self-service Customer Assist Portal. The fastest path depends on what you need: dealers handle servicing and warranty work, the national line handles head-office enquiries, and the 24/7 hotline handles breakdowns.

Here's how Mitsubishi Motors Australia customer service is structured:

• Phone — a national Customer Service line for head-office enquiries, plus a dedicated 24/7 Roadside Assistance hotline.
• Customer Assist Portal — a self-service portal to submit and track enquiries in real time, manage your vehicle details, and access owner's manuals.
• Dealerships — a large national network handling sales, servicing, warranty repairs, and most day-to-day support.
• Social media — active Facebook and X (Twitter) channels for general questions.

The headline drawcard is the Diamond Advantage program: Australia's first 10-year warranty, 10 years of capped-price servicing, and up to 10 years of roadside assistance. The product and warranty cover are genuinely market-leading — but service experience varies heavily by individual dealership, so it pays to know your rights and your escalation options.

Mitsubishi's vehicles earn strong value praise, but the dealer network scores poorly on independent review platforms — 1.9 out of 5 stars from around 264 Mitsubishi dealer service reviews on ProductReview.com.au, with roughly 79% rated negative. The recurring themes below are about consistency across the network, not the product itself.

Warranty disputes & repeat repairs

• Owners report returning a vehicle multiple times for the same fault — one described four separate warranty visits for a single unresolved problem.
• A common frustration is warranty claims feeling like they're "not being honoured."

Servicing delays & parts availability

• Long waits for parts and service bookings.
• Vehicles left sitting at service centres for extended periods, with little communication.

Poor post-sale communication

• Calls, emails, and online requests going unanswered after purchase.
• A frequent sentiment: "once you pay this company the customer service goes out the window."

Quoting & pricing concerns

• Examples of high quotes for minor repairs — one owner was quoted around $1,095 for a rain-sensor replacement they later fixed for roughly $12.
• Service quality and pricing swing dramatically between dealerships and individual staff.

Positive reviews do exist, and they usually credit a specific person or dealership. The pattern points to inconsistency across the network rather than a fault with the brand itself.

Pick the channel that matches your issue. For a tracked, time-stamped record, lodge through the Customer Assist Portal — then escalate to head office if a dealer goes quiet.

Your local dealership (start here)

• First point of contact for servicing, repairs, and most warranty matters.
• Bring your service records, receipts, and any photos or evidence of the issue.

Mitsubishi Customer Assist Portal (best for tracking)

• Submit and track enquiries in real time, manage your details, and access owner's manuals via the Customer Assist Portal.
• Lodge an online enquiry through the Ask an Expert form.
• You'll receive an email with a login link to follow the progress of your enquiry or complaint.

Phone

• Customer Service (Head Office): +61 (03) 9275 3999 — Mon–Fri, 9:00am–5:00pm. This is the Mitsubishi customer service phone number for written and general head-office enquiries.
• Diamond Advantage Roadside Assistance (24/7): 1300 13 12 11 — the Mitsubishi roadside assistance number for breakdowns, anytime.

Social media

• General questions via Facebook or X (Twitter).

Written correspondence

• Mitsubishi Motors Australia Ltd, Level 36, 120 Collins Street, Melbourne VIC 3000. Fax: +61 (03) 9275 3928.

If a dealer is unresponsive, escalate to MMAL Head Office Customer Service and reference your portal case number. If your issue still isn't resolved, you can lodge a formal complaint.

Summary only — the deeper detail sits on the dedicated guides linked below. Mitsubishi sells through dealerships, so refunds, cancellations, and remedies are governed by your purchase contract with the dealer plus your rights under Australian Consumer Law (ACL).

Warranty (Diamond Advantage)

• Up to 10 years / 200,000km new vehicle warranty when all scheduled services are completed on time at a Mitsubishi dealership — the Mitsubishi Diamond Advantage 10 year warranty.
• Otherwise, the standard 5 years / 100,000km warranty applies.
• See the Diamond Advantage warranty details for the full terms before lodging a Mitsubishi warranty claim in Australia.

Capped-price servicing

• Mitsubishi capped price servicing runs for 10 years or 150,000km (whichever comes first), covering the first 10 scheduled services at 15,000km / 12-month intervals.
• Non-scheduled repairs cost extra.

Roadside assistance

• Up to 10 years — starting as a 12-month period and extended 12 months each time an eligible capped-price service is completed (max 10 annual periods).

Refunds, returns & cancellations

• There's no traditional retail "returns" or "refund" policy — outcomes depend on your dealer contract plus the ACL. For how a remedy works in practice, see Mitsubishi's refund process.

Your Australian Consumer Law rights

• The conditional 10-year warranty was reviewed and allowed to stand by the ACCC — but it does not override your consumer guarantees.
• Even if your car is serviced outside the dealer network (by a qualified mechanic, on schedule), you keep your rights to repair, replacement, or refund for major failures. Dealers cannot deny a valid consumer-law claim on those grounds. See your rights when something goes wrong.