BMW 7-serie 40d MHEV 352 hp — Stage 1 file (+48 hp)

or choose step by step
1
Choose a vehicle type

Chip tuning for BMW 7-serie 40d MHEV 352 hp ECU

BMW 7-serie (2023 - G70) 40d MHEV 352 hp — premium diesel engine of the passenger segment of the BMW Group (Mini, Rolls-Royce, BMW Motorrad) group (Германия, 1916). Stage 1 chip tuning raises power from 352 to 400 hp (+48 hp, +14%) and torque from 720 to 800 Nm (+80 Nm). A modern diesel built in 2023 — a generation with encrypted firmware (Tricore TPROT) that often requires a Bench read.

BMW's slogan is “Sheer Driving Pleasure”. On modern BMW diesels, encrypted protection often requires Bench reading or authorised OBD.

Protection on top BMW models is the toughest in the group and requires 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. A well-known base once hardware is added (downpipe + intake + intercooler). 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.

Frequently asked questions

How much horsepower does Stage 1 add for the BMW 7-serie 40d MHEV 352 hp?

The Stage 1 gain for the BMW 7-serie 40d MHEV 352 hp is 48 hp (+14%) over the stock 352 hp, for a total of 400 hp. Torque rises from 720 to 800 Nm (+80 Nm).

What is Stage 1 chip tuning for the BMW 7-serie?

Stage 1 chip tuning of the BMW 7-serie is a rework of the ECU maps: boost pressure, ignition advance, target lambda and the removal of factory torque limiters. The gain is +48 hp with no hardware changes.

What is the Stage 1 potential of the BMW 7-serie 40d MHEV 352 hp?

Stage 1 for the BMW 7-serie 40d MHEV 352 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 much does Stage 2 add on the BMW 7-serie?

Stage 2 on the BMW 7-serie 40d MHEV 352 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.

What happens to the BMW 7-serie warranty after chip tuning?

The factory warranty of the BMW 7-serie 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 7-serie take?

On the BMW 7-serie 40d MHEV 352 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 7-serie?

Yes, the original ECU firmware of the BMW 7-serie 40d MHEV 352 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 7-serie?

Stage 1 for the BMW 7-serie 40d MHEV 352 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.

Last updated: 01.09.2026 · Source: manufacturer technical documentation · Measurements: CHIPOK dyno