M139 owners: the most powerful four-cylinder in production, in a hatch and a coupe.
Open to
Anywhere
To a decision
48 h
Run by
Octane
A45 / CLA45 is the hot-hatch corner of AMG ownership: Stage 1 and 2 maps for the M139, intercooler and downpipe choices, tyre wear on the front axle and the twisty roads that make them worth it.
For verified owners of any A45, A45 S, CLA45 or CLA45 S.
What happens here: model-specific tech threads (known issues, service intervals, part numbers, recalls), owner-run meets and chapter drives, tuning and suspension sessions with tuners who actually work on this platform, group buys on model-specific parts, a used-car inspection checklist maintained by members, and dedicated slots at Octane track days.
Membership of this clubSign in to check
No members yet. Applications are open.
Free on every membership. You apply with the car in your garage and a reviewer decides, usually within 48 hours.
What you need
Checked by hand. Documents are only seen by the reviewers, through links that expire in 15 minutes.
A Mercedes-Benz in your garageEligible: Mercedes-Benz AMG A45 S / W177, Mercedes-Benz AMG CLA45 / C118. Your application is linked to the car you pick.
Verified ownershipSend the car for verification from its page: the RC and one proof of ownership. Free on every membership.
One question from the club“Which 45 do you own, and what is your setup?”
Registration Certificate (RC)A clear photo or scan of the front of your RC / smart card. The name must match your account. Cover the chassis number if you like.
Ownership photoYou, with the machine, number plate readable. Phone selfie is fine. This is how we know the machine in the garage is yours.
About 48 hours for a decisionSite admins read every application.
