Mercedes-AMG M139 2.0L Turbo Tuning - Auckland

Professional ECU tuning for the Mercedes-AMG M139 2.0L turbo four-cylinder. Custom dyno calibrations on our in-house Mainline dynamometer. The world's most powerful series-production four-cylinder engine - 416hp from just 2.0 litres.

Book Custom Tune Call 0800 276 968

M139 Models We Tune

All powered by Mercedes-AMG's 2.0L Turbo Inline-4 - hand-assembled at AMG's facility in Affalterbach, Germany.

A45 S AMG (W177) - 421 hp

CLA45 S AMG (C118) - 421 hp

GLA45 S AMG (H247) - 421 hp

GLB45 AMG (X247) - 421 hp

A45 AMG (W177 - non-S) - 387 hp

CLA45 AMG (C118 - non-S) - 387 hp

M139 Tuning Power Figures

All figures are approximate, SAE J1349-corrected on our Mainline hub dynamometer. EuroLab develops custom calibrations on-car - tuned for NZ 98 RON fuel and local conditions.

Power at a Glance

Stock Power382-421 hp / 480-500 Nm

Stage 1 (Software Only)460-500 hp / 560-580 Nm

Stage 2 (ECU + Bolt-Ons)520-560 hp / 620-650 Nm

Maximum Potential600-700+ hp (upgraded turbo)

Why the M139?

The M139 is the most powerful series-production four-cylinder in the world at 421hp - and it still has headroom for more
Revised block with stronger internals compared to the M133 - designed to handle higher cylinder pressures from the factory
AMG Performance 4MATIC+ with drift mode allows rear-biased torque distribution - tuning amplifies this dramatically
The AMG Speedshift DCT 8-speed dual-clutch transmission shifts faster and handles more torque than the previous 7-speed

Look Up Your Tuning Potential

Select your vehicle to see expected power gains

Make

Model Family

Generation / Year

Engine

Power figures are estimates based on available tuning data. Actual results are validated on our in-house Mainline CCS3600 hub dynamometer and may vary based on fuel quality, ambient conditions, and individual engine health.

Tuning Pricing

Transparent pricing for all tuning options. All prices in NZD.

EuroLab Custom Dyno Tune

Professional custom calibration on our Mainline CCS3600 hub dynamometer. We develop the tune file in-house - calibrated specifically for your car, your modifications, and NZ 98 RON fuel.

Stage 1 Custom Dyno Tune$2,500 incl. GST

Stage 2 Custom Dyno Tune$3,000 incl. GST

Includes baseline dyno run, custom calibration for your specific car, and final validation pulls.

TCU Transmission Tune

Transform your automatic transmission with faster shifts, raised torque limiters, and improved shift logic. Recommended alongside ECU tuning.

TCU Tune (enquire for pricing)Call 0800 276 968

Stage 2+ Hardware Installs

Stage 2: Downpipes, intake, intercooler upgrades - installed and tuned at EuroLab.

Stage 3+: Upgraded turbochargers, fuel system, and supporting modifications - full build programme.

Call 0800 276 968 or book online for a custom quote.

How It Works - Our Tuning Process

Every EuroLab custom tune follows the same rigorous 4-step process.

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1. Consultation & Health Check

We inspect your vehicle, check for fault codes, and discuss your goals. No tuning happens on a car with underlying issues.

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2. Baseline Dyno Run

Your car goes on our Mainline CCS3600 hub dynamometer for baseline power and torque measurements - SAE J1349-corrected for honest, repeatable numbers.

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3. Custom Calibration

We develop your tune file in-house, making iterative adjustments on the dyno. Fuel maps, boost targets, ignition timing - all calibrated for your specific car, mods, and NZ 98 RON fuel.

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4. Final Validation & Handover

Final power pulls to confirm gains, data review with you, and a road test. You leave with your dyno sheet and a car that performs exactly as promised.

Why Choose EuroLab?

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In-House Mainline Hub Dyno

SAE J1349-corrected figures on our Mainline CCS3600 - the most conservative standard. Our numbers are real, repeatable, and honest.

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Custom Calibrations In-House

We develop our own proprietary tune files, calibrated live on the hub dyno for NZ 98 RON fuel. Every tune is built specifically for your car.

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Full Workshop

We don't just flash ECUs. Diagnostics, repairs, bolt-on installs, turbo swaps - everything under one roof at our East Tamaki workshop.

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149+ Five-Star Reviews

4.8-star Google rating. Our reputation is built on quality work, honest advice, and cars that perform exactly as promised.

Ready to Unlock Your M139?

Book your custom dyno tune or call us to discuss your build.

Book Online Call 0800 276 968

M139 Tuning FAQs

How much power can a tuned M139 make?

With a custom dyno tune, the M139 typically produces 460-500hp at Stage 1 (software only). Stage 2 with bolt-ons pushes to 520-560hp. With an upgraded turbo and supporting hardware, 600-700+hp is achievable. All figures SAE J1349-corrected on our Mainline CCS3600 hub dyno.

How much does it cost to tune an M139 in Auckland?

EuroLab's custom dyno tune is $2,500 incl. GST. This includes a baseline dyno run, custom calibration for your specific car, and final validation pulls - calibrated for NZ 98 RON fuel and local conditions.

What's the difference between M139 and M133?

The M139 is the successor to the M133. Key differences: stronger block with a closed-deck design, revised turbocharger, higher stock power (421hp vs 381hp), 8-speed DCT vs 7-speed DCT, and AMG Performance 4MATIC+ with drift mode. The M139 is a more capable tuning platform from the factory.

Is the M139 reliable after tuning?

The M139 was designed with higher cylinder pressures in mind. The closed-deck block and stronger internals handle Stage 1 comfortably. Stage 2 benefits from an upgraded intercooler and downpipe. The 8-speed DCT transmission has higher torque capacity than the previous 7-speed.

Does the M139 have drift mode after tuning?

Yes. The AMG Performance 4MATIC+ with drift mode (S models only) is retained after ECU tuning. In fact, the increased torque from tuning makes drift mode even more capable. The rear-biased torque split works with the tuned power delivery seamlessly.

Is the non-S A45 (387hp) worth tuning?

Absolutely. The non-S M139 (387hp) uses the same engine block and turbocharger - the power difference is purely software. A Stage 1 tune brings the non-S beyond S model power levels, making it one of the best value tunes in the AMG range.

M133 Engine Hub - Mercedes-AMG 2.0L Turbo (A45/CLA45 - previous gen) tuning guide
M177 Engine Hub - Mercedes-AMG 4.0L Bi-Turbo V8 tuning guide
Mercedes Service Auckland - Full Mercedes servicing, diagnostics & repair
Performance Finder - Look up your vehicle's tuning potential
EuroLab Performance Parts Store - 7,000+ parts for European vehicles