BMW 7-serie 45e 394 hp — Stage 1 file (+106 hp)
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Stage 1 file for BMW 7-serie 45e 394 hp
Target +0 hp. Custom development for your engine.
Chip tuning for BMW 7-serie 45e 394 hp ECU
BMW 7-serie (2015 - G12) 45e 394 hp — premium hybrid engine of the passenger segment of the BMW Group (Mini, Rolls-Royce, BMW Motorrad) group (Германия, 1916). Stage 1 chip tuning raises power from 394 to 500 hp (+106 hp, +27%) and torque from 600 to 700 Nm (+100 Nm). ECU — Bosch MG1CS201. Flashing method: OBD or Bench depending on the unit's protection. The ZF 8HP75H 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 BMW community is one of the most active in Europe for chip tuning. BMW i is a dedicated full-EV line. On a PHEV, the ICE part is tuned just like the pure combustion variant. Full-EV BMWs keep the inverter and BMS locked, so traditional chip tuning does not apply.
On older and mid-generation BMWs, Stage 1 is flashed over OBD without Bench. Stage 1 on BMW usually stays within the standard timeframe, with no particular difficulty on the standard models. The BMW community is renowned for active tuning and a large pool of available Stage files. Bench reading is the standard procedure for top engines in modern models. Top BMW engines sit at the power ceiling, and the gain is significant. A well-known base once hardware is added (downpipe + intake + intercooler).
BMW's main gearbox is a modern multi-speed automatic. The gearbox comes in versions by torque class, so its tolerance depends on the engine. The TCU rarely needs recalibration up to Stage 1+, as the torque limiter usually copes with the Nm gain.
Frequently asked questions
How much horsepower does Stage 1 add for the BMW 7-serie 45e 394 hp?
The Stage 1 gain for the BMW 7-serie 45e 394 hp is 106 hp (+27%) over the stock 394 hp, for a total of 500 hp. Torque rises from 600 to 700 Nm (+100 Nm).
What is Stage 1 chip tuning for the BMW 7-serie?
Stage 1 on the BMW 7-serie 45e 394 hp is a software ECU calibration with no hardware changes. The key maps (boost/ignition/lambda/torque) are adjusted while factory tolerances are preserved. The gain is +106 hp with no hardware changes.
What does Stage 1 give on the top-spec BMW 7-serie 45e 394 hp?
Stage 1 for the BMW 7-serie 45e 394 hp unlocks the potential built in by the factory but artificially capped to meet mass-market targets. A base of 750-800 hp is achievable once hardware is added.
How does Stage 2 differ from Stage 1 on the BMW 7-serie 45e 394 hp?
Stage 2 on the BMW 7-serie 45e 394 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
What control unit does the BMW 7-serie 45e 394 hp run?
The control unit of the BMW 7-serie 45e 394 hp is the Bosch MG1CS201. Before flashing, the engineer identifies the exact revision and selects the write method.
Does the ZF 8HP75H transmission need calibration after Stage 1 on the BMW 7-serie?
Remapping the ZF 8HP75H gearbox is essential to fully unlock Stage 1 on the BMW 7-serie 45e 394 hp. Without a TCU update the factory torque cap will choke the torque gain and shifts will become noticeably softer.
Does Stage 1 void the warranty on the BMW 7-serie?
Stage 1 on the BMW 7-serie voids the factory warranty on the engine and transmission — this is standard for all manufacturers. CHIPOK provides its own warranty on the quality of the remap.
How quickly is chip tuning of the BMW 7-serie 45e 394 hp done?
The full remap cycle for the BMW 7-serie — from reading to writing the final file — takes 30-90 minutes depending on the ECU access method. The file is prepared at CHIPOK in 5-30 minutes.
Can you return to stock after Stage 1 on the BMW 7-serie?
The original BMW 7-serie ECU is always saved before flashing. Rolling back to the factory firmware is done with the same programmer in 25-30 minutes.
How much does Stage 1 cost for the BMW 7-serie 45e 394 hp?
The cost of Stage 1 for the BMW 7-serie 45e 394 hp is calculated in the calculator on this page — you select the options (DPF off, EGR off, AdBlue off, DTC off, etc.) and the price is capped by the package Max Price. Payment is by credits (1 cr = 1 €), with no subscriptions.