Mercedes CLS Common Problems & Costs
The Mercedes CLS is a stylish four-door coupe. A Cranbourne West Mercedes specialist explains the common CLS problems and how to keep one sweet.
About the CLS
The CLS (C218 & C257) is a popular choice locally, and a genuinely good car when it’s serviced correctly with the right oils and parts. As an independent Mercedes specialist in Cranbourne West we know exactly where each model needs attention — so you own it for far less than the dealer charges.
Catch the known items early and a CLS stays reliable and a pleasure to drive.
Common CLS problems
The issues we see most on the CLS: oil leaks, AIRMATIC air-suspension faults, cooling-system wear, and the 7G/9G automatic benefiting from a transmission service. None of these are unusual for the model, and all are far cheaper to address early than to ignore.
We use dealer-level STAR diagnostics to find the real fault rather than guess, and the correct Mercedes-spec oils and genuine-quality parts on every job.
Servicing your CLS for less
We service the CLS to the Mercedes A/B (ASSYST) schedule, reset the service indicator, and give fixed written pricing — typically well under dealer cost. Buying used? A pre-purchase inspection checks the CLS-specific trouble spots so you don’t inherit someone’s deferred maintenance.
Already own one? Book it in for an honest health check.
Mercedes CLS Common Problems & Costs — FAQ
Yes, with correct servicing. It shares much with the E-Class, so the same care keeps it dependable.
Oil leaks, AIRMATIC faults, cooling wear, and a skipped transmission service.
Yes — the 7G/9G auto benefits from a transmission service that’s often skipped.
Manageable with a specialist and fixed pricing — well under dealer cost.
Related guides & services
Mercedes need attention?
Trusted Cranbourne West car specialists — RACV-accredited, fixed written pricing. Book online or call 03 8782 0711.