D-Sync Works

M276 ECU Tune — 3.0T V6 Biturbo

M276 Stage 1 / Stage 2 OTS tune · 3.0T V6 Biturbo · flashed from your phone Available now

Stage 1 and Stage 2 OTS tunes for the Mercedes M276 3.0T V6 Biturbo engine family. Each supported car below links to its own page with exact stock, Stage 1 and Stage 2 figures.

Car	Chassis	Years	Stock	Stage 1	Stage 2
AMG C 43	W205	2016–2021	380 hp / 520 Nm	450 hp / 600 Nm	480 hp / 650 Nm
AMG E 43	W213	2016–2018	396 hp / 520 Nm	450 hp / 600 Nm	480 hp / 650 Nm
AMG GLC 43	X253 / C253	2017–2023	380 hp / 520 Nm	450 hp / 600 Nm	480 hp / 650 Nm
AMG GLE 43	W166 / C292	2015–2019	396 hp / 520 Nm	450 hp / 600 Nm	480 hp / 650 Nm
AMG SLC 43	R172	2017–2020	380 hp / 520 Nm	450 hp / 600 Nm	480 hp / 650 Nm
C 400 / C 450	W205 / S205 / C205 / A205	2013–2021	328 hp / 480 Nm	450 hp / 600 Nm	480 hp / 650 Nm
E 400	W212 / W213 / C207 / A207 / C238 / A238	2013–2018	328 hp / 480 Nm	450 hp / 600 Nm	480 hp / 650 Nm
E 450	W213 / C238 / A238 / S213	2018–2020	362 hp / 500 Nm	450 hp / 600 Nm	480 hp / 650 Nm
CLS 400	C218 / X218	2014–2018	TBA	450 hp / 600 Nm	480 hp / 650 Nm
SL 400 / SL 450	R231	2014–2020	TBA	450 hp / 600 Nm	480 hp / 650 Nm
S 450 / 400 / 320	W222	2014–2020	TBA	450 hp / 600 Nm	480 hp / 650 Nm
GLE 400 / GLE 450 / ML 400	W166 / C292	2015–2018	TBA	450 hp / 600 Nm	480 hp / 650 Nm
GL / GLS 400 / 450	X166	2015–2019	TBA	450 hp / 600 Nm	480 hp / 650 Nm

All gains validated on real cars. Factory safety parameters preserved. · AMG 43-series $839 · non-AMG 400 / 450 models $799.

How flashing works

Every tune is flashed over the OBD port from your phone: plug in the D-Sync D1 Wi-Fi dongle, open the D-Sync app, pick Stage 1 or Stage 2, and flash. No laptop, no bench, no shipping your ECU. Your factory calibration is saved automatically — revert to stock with one tap, anytime.

Stage 1 vs Stage 2 — what each needs

Stage 1 runs entirely on factory hardware — no supporting mods required — and also supports cars with an upgraded intake and improved cooling. Stage 2 requires a high-flow exhaust system; an upgraded intake and improved cooling are recommended alongside it. Each stage ships as two files calibrated separately for AKI 91 and AKI 93 fuel, plus a Stage 0 factory-power baseline — five OTS files per car, matched to your ECU software version after VIN verification in the app. European / Asian fuel grades: 95 RON → use the AKI 91 file; 98 / 100 RON → the AKI 93 file. Neither stage needs a transmission (TCU) tune — both are calibrated to run with the factory TCU.

Included with the OTS Mappack

DTC management during flash — select fault codes to manage right in the app before flashing (intended for closed-course use; vehicles on public roads must comply with local emissions regulations). Exhaust Burble Tuner (AMG models only) — adjustable pops & bangs with 13 in-app controls, included at no extra cost with every OTS Mappack purchase. Live data logging is part of the Flash & Log license. Vehicle coding functions (beta) are free for OTS customers.

What's in the package

D-Sync D1 Wi-Fi OBD dongle — included, no other hardware needed (third-party ELM327-type dongles are not supported)
Flash & Log license (one VIN) — flashing, high-speed data logging with CSV export, DTC scanning
OTS Mappack license — Stage 1 and Stage 2, each as an AKI 91 and an AKI 93 file, plus the Stage 0 factory-power baseline: five files, all available from day one, no need to pick one stage at checkout
Your Mercedes factory calibration — matched to your ECU software version, so you can return to stock with one tap at any time
Exhaust Burble Tuner (AMG models) and DTC management — independent in-app controls, included free with the Mappack
VIN binding and ECU verification in the app are free; after activation the app shows which file to flash

What you need: a phone with the D-Sync app and access to the car's OBD port.

Pricing & ordering

$799 / $839 USD — includes the license and the D-Sync D1 Wi-Fi dongle, covering one VIN. Free standard shipping to all supported regions.

Buy Now — US & Canada Order by Email

Email your VIN to duke@yd-autogroup.com so we can confirm tune availability for your exact ECU version before you pay.

14-day returns on unactivated licenses · one VIN per license · free standard shipping to supported regions · checksums corrected automatically on every flash · one-tap revert to stock, anytime

Ordering & shipping

Before you pay	Email your VIN to duke@yd-autogroup.com — we check your ECU software version first and usually reply within one business day.
US & Canada	Online checkout or PayPal; Canadian customers can also pay by Interac e-Transfer.
All other countries	Order by email with your VIN; we send a PayPal invoice and PayPal converts to your currency automatically.
Shipping	Orders ship the day after they are placed — from our agent in Guangzhou for Mainland China and nearby regions, from Ontario, Canada for everywhere else. We ship worldwide: UPS by default to Europe and North America, EMS to Australia, and SF Express to Mainland China and nearby regions (Hong Kong, Macau, Taiwan, Japan, South Korea and Southeast Asia). For any other region, please email us before ordering. Delivery time depends on your region; standard shipping is free to the regions above — ask for an express upgrade when ordering.
Duties	Import duties or taxes, where they apply, are the recipient's responsibility.
After payment	Register on d-syncworks.com and tell us the account email — we activate the license on your VIN and send tracking, usually within one business day.

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