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BMW 5 Series G30/G31 2.0 520d B47 (2017–2024) Remapping

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Available tuning estimates

BMW 5 Series G30/G31 2.0 520d B47 (2017–2024)

2017-2024 · Engine code B47 · ECU family to be confirmed on the vehicle

MetricStockStage 1 (est.)Stage 2 (est.)
PowerPower estimate awaiting confirmationPower estimate awaiting confirmation—
Torque400 Nm460 Nm—

Stock

Power estimate awaiting confirmation / 400 Nm

Stage 1 (est.)

Power estimate awaiting confirmation / 460 Nm

Stage 1 price for this engine

Price on request

We confirm the price after reviewing your vehicle.

Stage 2: price on request. Power estimate awaiting confirmation.

Stage 1 remapping optimises ECU software for compatible vehicles in standard configuration. It's designed to improve performance, torque and throttle response without requiring performance hardware modifications.

  • • Mobile may be suitable, subject to ECU access, postcode, working space and availability within 50 miles of Slough.
  • • Estimated gains depend on condition, configuration and fuel. Your quote discusses expectations, not a guaranteed measured output.

Confirm this engine and software version

BMW 5 Series G30/G31, 2017-2024, 520d. Recorded engine code: B47. ECU hardware and software to be confirmed on the vehicle. A model name alone is not proof of tuning compatibility. ECU hardware and software identification determine the programming or unlock route; no specific unlock is assumed from the badge.

Data label: Existing vehicle library estimate. These are typical library estimates, not independently verified STX measurements. Missing Stage 2 figures remain unavailable; hardware requirements must be checked for the proposed setup.

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Google Customer Reviews

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Google Reviews

4.9

535 Google Reviews

  • Loizos Kyriacou

    Jun 2025

    Went to remap my GLE 250d and the whole process was smooth from start to finish. Super responsive, and had the job done quickly with zero hassle. The results are brilliant , noticeable power gains straight away and smoother drive overall. Would highly recommend them to anyone looking for a quality remap with excellent customer service!

    Posted on Google · view on our Google profile
  • Debby Cunliffe

    Jun 2025

    Fantastic service. Came to my home on a Sunday to remap my car. Great job done and lifetime warranty plus interest free payment facility over 4 months available. Highly recommend

    Posted on Google · view on our Google profile
  • Daniel Sullivan

    Jan 2025

    Highly recommended service. The team at STX are very accommodating and professional. Had a remap on my Audi which was turned around in a day. Running perfectly. I will definitely be back for additional work in the near future.

    Posted on Google · view on our Google profile
  • Stephen Hall

    Jan 2025

    Great and quick service, sorted my emissions error out on my car , "Really happy with the remap done on my car, polite, efficient service and would highly recommended"

    Posted on Google · view on our Google profile
  • Tony Thorpe

    Dec 2024

    STX tuning really looked after me and my van, explained the process and carried out work without any fuss whatsoever! Van has been perfect since. Would definitely recommend to anyone to use! Keep up the good work guys!

    Posted on Google · view on our Google profile
  • ಠ_ಠ

    Nov 2024

    Honestly well happy with the stage 1 re map, was worried if I would even feel a power difference from 125-151bhp but I can assure you it’s a difference, aswell as a good high change in torque. It took about 30 minutes, brilliant service, and dome good tips on how to take care of my car after ⭐️⭐️⭐️⭐️⭐️

    Posted on Google · view on our Google profile