Apex Performance Tuning Melbourne — European and performance car workshop
Apex Performance Tuning
Mercedes-AMG engine bay during tuning work at Apex Performance Tuning Melbourne
AMG Tuning · Melbourne

AMG tuning Melbourne.
Independent. Calibrated to your car.

Apex Performance Tuning is an independent European vehicle specialist workshop in Wantirna South. We are not a manufacturer and not an authorised dealership.

We are not a Mercedes-Benz dealership — we are an independent AMG specialist workshop. Custom ECU and TCU calibration for M177 C63/E63, M139 and M133 A45/CLA45, M256 AMG 43 and M256/M264 A35 platforms. Every AMG is scanned first, calibrated to the hardware actually fitted, and validated with logged road data before it leaves.

Call the Apex workshop — 0483 939 216

For service, repair and diagnostic enquiries at Apex, Wantirna South.

★ 4.9-star Google ratingManufacturer warranty preservedOEM on request
Quick answer

Apex Performance Tuning is an independent European and performance car specialist workshop at Unit 4/6 Woodbine Court, Wantirna South VIC 3152, servicing greater Melbourne. We are not a dealership.

AMG Tuning Melbourne is carried out to manufacturer specification with genuine or OEM-equivalent parts and manufacturer-level diagnostic software, so your statutory and new-car warranty stays intact.

Open Monday to Friday 8:30am–5:30pm, contact 0483 939 216. Every job is quoted in writing against your VIN before work begins and documented with video inspection.

4.9★
Google rating
Warranty
Manufacturer schedule preserved
Photo & video
Inspection evidence
Approval first
No extra work without your OK
What we do

Every service, every job —
done properly.

Manufacturer-spec intervals, dealer-level diagnostics and OEM-grade parts. Every service is quoted in writing against your VIN before work begins, with a clear, line-itemised breakdown.

  • 01

    Stage 1 AMG calibration

    Stock hardware, custom map written to your specific car on 98 octane. Boost, timing, fuelling and torque limiters set within safe platform limits — not a generic file flashed blind.

  • 02

    Stage 2 with hardware

    Downpipes, intakes and cooling where the platform benefits, then a calibration that actually uses the new hardware. Fitted, torqued to spec and calibrated in one visit.

  • 03

    M177 C63 / E63 tuning

    4.0 twin-turbo V8 — hot-V layout, so heat soak and intercooler performance dictate what is safe. We calibrate for repeatable power, not one clean pull.

  • 04

    M139 / M133 A45 tuning

    2.0 four-cylinder turbo running high factory boost already. Calibration is conservative by necessity — we log intake temps, knock and fuel trims across full and part throttle.

  • 05

    TCU / gearbox calibration

    MCT, 9G-Tronic and the AMG Speedshift DCT — shift speed, torque limiter handover and launch behaviour matched to the engine map where the platform allows.

  • 06

    Diagnostic-first, always

    Full Xentry scan before any calibration. Existing faults, coil packs, leaking charge pipes and tired spark plugs get resolved first. We will not tune around a mechanical problem.

Why Apex

Dealer-grade work.
Without the dealer wait-list.

  • 01

    Datalogs, not claimed figures

    Every AMG is logged before and after — boost, timing, AFR, knock, intake temps. You see the data behind the calibration instead of a peak number with no context.

  • 02

    AMG platforms every week

    C63, C43, A45, CLA45, A35, E63 and GLC43 come through the workshop regularly. We know where each platform runs out of headroom and why.

  • 03

    Heat is the real limit

    AMG hot-V V8s and the M139 both make big factory boost. Sustained power is a cooling problem before it is a software one — we address that first.

  • 04

    Reversible where it matters

    Stock file backed up on every car. If you need to return to factory before a dealer visit or sale, we can put it back.

  • 05

    Servicing under the same roof

    The workshop that tunes your AMG also services it — oil to spec, plugs on interval, transmission fluid when it is due. Tuned cars need the maintenance kept honest.

  • 06

    Straight answers on legality

    We will tell you what is road-legal in Victoria, what needs VASS engineering, and what belongs on track. No sales pitch.

Deep dive

What actually limits an AMG calibration.

Modern AMGs leave the factory with far less headroom than the tuning market implies. The M177 4.0 twin-turbo V8 places both turbochargers inside the vee, which is excellent for response and packaging and unhelpful for underbonnet temperatures. The M139 in the A45 S runs some of the highest specific output of any production four-cylinder, with factory boost already near the limit of the standard turbocharger.

That means the honest constraint on an AMG tune is thermal, not software. Intake temperature, charge cooling capacity and oil temperature dictate what the car can hold on a warm Melbourne day — and a calibration that ignores that will make one impressive pull and then pull timing for the rest of the drive. We calibrate for the third run, not the first.

  • Charge cooling first

    On both the V8s and the M139, intercooler and heat-exchanger performance sets the real ceiling. We log intake temps before deciding what is sensible.

  • Spark plugs and coils

    Tired plugs are the most common cause of misfire after a tune. Replaced on interval, gapped to spec, before calibration.

  • Charge pipes and boost leaks

    Pressure-tested before any map goes on. A small leak reads as a fuelling problem and hides real knock behaviour.

  • Transmission health

    MCT and 9G-Tronic fluid condition is checked. More torque through tired fluid is how these gearboxes start slipping.

How an AMG tuning job runs here.

Send your rego or VIN through the quote form or call 0483 939 216. We look up the exact build, confirm engine code and gearbox, and come back with a written plan for what is realistic on your car — usually the same business day.

On arrival the car gets a full Xentry scan across every module before anything else happens. Stored and pending faults are read out and discussed. If there is an underlying mechanical issue, we fix that first or we do not proceed — tuning over a fault is money wasted for both of us.

Calibration is then written and validated with logged road data across full load and part throttle. You get the before-and-after logs, a plain-English summary of what changed, and follow-up log review after you have driven the car for a week. If something wants adjusting, we revise it.

AMG owners across Melbourne.

Most of our AMG clients come from Melbourne's east and inner east — Glen Waverley, Balwyn, Camberwell, Kew, Toorak, Doncaster and the Knox catchment — and drop the car in the morning before heading back to work. The workshop is in Wantirna South, straight off EastLink.

If you are further out, that is fine too; we regularly see cars from across the metro area for platform-specific work that local generalist workshops will not take on.

AMG work in our workshop
Apex technician working on a Mercedes-AMG C63 in the Wantirna South workshop
AMG C63 — workshop, Wantirna South
Mercedes-AMG C63 M177 twin-turbo V8 engine bay open on the hoist at Apex
M177 engine bay on the hoist
Mercedes-AMG C63 and AMG GT 53 in the Apex workshop
AMG C63 · AMG GT 53
Questions

Common questions,
straight answers.

Which AMG models do you tune?+

M177 C63 and E63 (W205, W213), M178 GT platforms on request, M139 A45 S and CLA45 S, M133 A45 (W176/W177), M256 inline-six AMG 43 models, and M260/M264 A35 platforms. If your model is not listed, call us — most modern AMGs are supported.

How much power will an AMG tune add?+

Platform dependent and honestly stated per car. The twin-turbo V8s respond strongly on Stage 1 with stock hardware; the M139 already runs high factory boost, so gains are more modest and mid-range focused. We give realistic expectations for your exact model before we start.

Will tuning affect my Mercedes warranty?+

A flash tune is detectable and will likely affect the powertrain portion of a factory warranty on a newer AMG. We are upfront about this before any work. Your stock file is backed up so the car can be returned to factory calibration if needed.

Do I need 98 octane?+

Yes — 98 minimum on any modern AMG calibration. Some platforms support E-blend for additional headroom, in which case we supply a separate map so you are never running the wrong fuel for the file loaded.

Do you tune the gearbox as well as the engine?+

Where the platform allows. On MCT, 9G-Tronic and AMG DCT gearboxes the TCU calibration is written in sync with the engine map — shift speed, torque handover and launch RPM. Doing one without the other is how gearboxes get hurt.

Can you tune an AMG that already has aftermarket parts?+

Yes, and it is the right way round — tell us exactly what is fitted, we inspect it, then the calibration is written to the hardware on the car. A generic file on modified hardware is the most common cause of the problems we get asked to fix.

Do you service AMGs too, or only tune them?+

Both. Log book servicing, spark plugs, transmission fluid, diagnostics and repairs are all done here — see our Mercedes-AMG service page. A tuned AMG needs its maintenance kept tighter, not looser.

Where are you located?+

Wantirna South, South East Melbourne — easy from EastLink, the M1 and Melbourne's east and inner east. Call 0483 939 216 to talk through your AMG.

Related pages for AMG owners
Book in

Ready for a proper quote?

Send your registration or VIN, current kilometres and what the car needs. We come back with the scope in writing — usually within the business day — and nothing extra is carried out without your approval.

Call the Apex workshop — 0483 939 216