Karworx

Extremely Poor Service – Avoid at All Costs

Took my AMG to Karworx in Collingwood for engine shaking and engine light issues. They charged me \$2,000 claiming it was fixed, but the exact same issue happened the next day during a country drive — engine shaking, light on, car stranded. I had to tow it back at my own cost.

Despite promising not to charge me again, they replaced parts I never approved and billed me another \$1,320 — still didn’t fix the actual issue.

Fed up, I went to an authorised Mercedes-AMG centre who diagnosed the real problem in a day: misfire in cylinder 1 caused by poor-quality aftermarket parts. Since then, no issues at all.

Also submitted a complaint on Karworx’s site — no reply, no accountability.

Unprofessional, expensive, and completely incompetent. Don’t risk your car here.

I have been to these guys twice, the first time they did a decarbonising of the intake manifold, then 6 months later they tried to do it again not realizing they had already done it they tried telling me it needs to be done annually, but I already had it done 6 months ago! Another thing is they clearly state they are open on Saturdays on their website, business cards and invoices but on my second service I couldn't book a Saturday as they all of a sudden do not open on Saturdays. Truly the epitome of what we all think mechanics are like.