BMW X1 35i (2.0T) 306 hp — Stage 1 file (+34 hp)
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Stage 1 file for BMW X1 35i (2.0T) 306 hp
Target +0 hp. Custom development for your engine.
Chip tuning for BMW X1 35i (2.0T) 306 hp ECU
BMW X1 (2015 - F48) 35i (2.0T) 306 hp — premium petrol engine of the passenger segment of the BMW Group (Mini, Rolls-Royce, BMW Motorrad) group (Германия, 1916). Stage 1 chip tuning raises power from 306 to 340 hp (+34 hp, +11%) and torque from 450 to 500 Nm (+50 Nm). ECU — Bosch MG1CS024. Flashing method: OBD or Bench depending on the unit's protection. The ZF 8HPxx TCU is calibrated with a separate file — torque limiter and shift maps for Stage 1. In the CHIPOK database: 2 configurations · 2 ECU variants. The 2015 generation — mid-generation petrol ECUs (MEDC17/MEVD17/Simos PCR), OBD flash on production revisions.
M GmbH is BMW's performance division, building M engines since 1972. High-output BMW turbo petrol engines deliver a solid gain with Stage 1 on stock hardware. The BMW petrol range spans the mainstream segment and the sporting M-series. The factory calibration on BMW petrol engines is conservative, leaving headroom for Stage 1 without hardware changes.
The BMW community is renowned for active tuning and a large pool of available Stage files. Stage 1 on BMW usually stays within the standard timeframe, with no particular difficulty on the standard models. On older and mid-generation BMWs, Stage 1 is flashed over OBD without Bench. The BMW premium segment is a high-output platform with Stage 2 potential. The hardware headroom allows a confident move to Stage 1 without changing the turbo. High-output engines deliver a solid gain with Stage 1 on stock hardware.
BMW's main gearbox is a modern multi-speed automatic. Mini and FWD compacts use a different TCU platform with its own tooling base. The TCU rarely needs recalibration up to Stage 1+, as the torque limiter usually copes with the Nm gain.
Frequently asked questions
How many horsepower does the BMW X1 35i (2.0T) 306 hp reach after a remap?
After Stage 1 the power of the BMW X1 35i (2.0T) 306 hp rises from 306 to 340 hp, a gain of 34 hp (+11%). Torque rises from 450 to 500 Nm (+50 Nm).
How does Stage 1 differ from stock on the BMW X1?
Stage 1 chip tuning of the BMW X1 is a rework of the ECU maps: boost pressure, ignition advance, target lambda and the removal of factory torque limiters. The gain is +34 hp with no hardware changes.
Is Stage 1 safe on the high-output BMW X1 35i (2.0T) 306 hp?
The high-output BMW X1 35i (2.0T) 306 hp has a conservative factory calibration aimed at the mass market. Stage 1 unlocks the engine's real potential while turbo and injector life are preserved.
How much does Stage 2 add on the BMW X1?
Stage 2 on the BMW X1 35i (2.0T) 306 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
Which ECU is fitted to the BMW X1 35i (2.0T) 306 hp?
The BMW X1 35i (2.0T) 306 hp ECU is the Bosch MG1CS024. Production versions support OBD access; locked variants require Bench (BDM/JTAG).
Is the ZF 8HPxx TCU calibrated together with Stage 1?
Yes, on the BMW X1 35i (2.0T) 306 hp the ZF 8HPxx TCU is calibrated with a separate file. The torque limit, shift maps, launch control rpm and clutch torque map are changed. The factory torque limiter in the TCU is usually below what the engine can deliver after Stage 1.
What happens to the BMW X1 warranty after chip tuning?
The factory warranty of the BMW X1 does not remain valid after Stage 1 — the manufacturer withdraws its obligations once the ECU software is changed. CHIPOK provides its own warranty on its work and support.
How long does remapping the BMW X1 take?
On the BMW X1 35i (2.0T) 306 hp: OBD flash 25-30 minutes, Bench (if required) about an hour. The file processing itself takes 5-30 minutes once the original bin is received.
Is the original file kept when chip tuning the BMW X1?
Yes, the original ECU firmware of the BMW X1 35i (2.0T) 306 hp is kept and can be flashed back at any time. Returning to stock via OBD takes 25-30 minutes.
What is the price of a Stage 1 remap for the BMW X1?
Stage 1 for the BMW X1 35i (2.0T) 306 hp is paid for with CHIPOK credits (1 cr = 1 €). The final amount is set in the calculator, taking the extra options (off functions) into account.