Mercedes-AMG A35 remap

Up to on Stage 1, dyno-verified, not estimated. The M260 in the A35 is a strong starting point in its own right. Call 0161 302 5117.

4WD Bapro dyno Every map verified against real power figures
Samuel Gunnell 10+ years of experience
Kess3 and CMD OBD port and bench tuning
6,000 sq ft workshop Eccles, Manchester

Mercedes-AMG A35 power figures

| Stage | BHP | Torque | Notes | |–-|–-|–-|–-| | Stock | 302 to 306 bhp | 400 Nm | M260 2.0 turbo, 4Matic AWD | | Stage 1 | | | Software only, no hardware changes |

The A35 runs the M260 rather than AMG's flagship M139, and it's easy to treat it as the junior car in the line-up because of that. On the dyno it's a genuinely strong platform. Factory output already sits above 300 bhp, and the figures above come from our own measured pulls on the 4WD Bapro dynamometer rather than a number lifted from a spec sheet or an average of other owners' claims.

Mercedes-AMG A45 S strapped to the 4WD Bapro dyno in the tuning cell
Cutaway of an automatic gearbox showing the clutch packs

What the gain feels like

The A35 is quick in standard form, and a Stage 1 remap sharpens exactly the parts of the drive that matter most on a daily-driven hot hatch: throttle response off the line, mid-range torque through the DCT gearbox, and the willingness of the engine to pull cleanly from low revs rather than waiting for boost to build. The gap between the A35 and more expensive machinery narrows noticeably once the factory's conservative margin is removed, without the car losing any of the composure that makes it easy to live with day to day.

Every service available on the A35

Stage 1 is the core service on this platform. Stage 2 is available where supporting hardware, such as an upgraded intercooler, is fitted, and we'll advise honestly on whether it suits your goals for the car. Transmission calibration is available alongside the engine remap, sharpening shift response through the DCT gearbox. An economy-focused remap is available for owners who want lower running costs from daily driving. Standalone rolling road sessions are available for a baseline pull or a post-modification check.

Tuner working on a calibration across two monitors
Flames from the exhaust during a run on the dyno

Dyno proof for this platform

The A35 runs 4Matic all-wheel drive, and that's a key reason a 4WD dynamometer isn't optional for this car. A two-wheel-drive rig can't load 4Matic correctly, and running a full-power pull on one either forces the car into a non-standard test mode or leaves an axle unloaded. Our Bapro dyno drives all four wheels simultaneously, so the baseline pull and the verification pull that follow reflect how the car actually delivers power on the road, with the 4Matic system operating exactly as it's designed to.

Frequently asked questions

Are these power figures guaranteed on my car?
No figure is guaranteed before we've seen the car. Condition, mileage, fuel quality and any prior work all affect the outcome, and what we quote after your session is a figure we've measured on the dyno.
What affects the exact gain I'll see on my A35?
The main factors are service history, the condition of the turbo and intercooler, current mileage and the fuel the car has been running on. A well-maintained A35 typically responds more predictably than one with a patchy history.
Do you provide a printout of before-and-after figures?
Yes. Every Stage 1 session includes a baseline pull before the calibration and a verification pull afterwards, and you leave with both sets of figures.
What fuel does the A35 need after remapping?
Stage 1 calibration on the M260 is developed around standard UK 97 to 99 RON super unleaded. We'll confirm the exact requirement for your specific car at the time of the session.
Is Stage 2 worth it over Stage 1 on an A35?
For most road-driven A35s, Stage 1 delivers the majority of the usable gain on its own. Stage 2 makes more sense once supporting hardware is fitted, and we'll give you an honest recommendation rather than push hardware that isn't needed.

Get your A35 on the dyno. Contact us for a quote on Stage 1, transmission calibration, or a standalone rolling road session. Call 0161 302 5117 or visit HNA Facilities, Plot Zero, James Nasmyth Way, Eccles, Manchester M30 0SF. This is a fixed facility. Bring the car to us. See the full range we cover on the Mercedes remapping hub.

Datalog open on a laptop during a tuning session