https://www.mtechtuning.co.uk/, https://www.mtechtuning.co.uk/gains-checker

MTechTuning, Bristol (2026)

15/10/2026

Ford Ranger 2.2 TDCi – Emergency AdBlue Software Solution

Vehicle Details:
• Year: 2015
• Engine: 2.2 TDCi Euro 6
• ECU: Siemens/Continental SID209

We received an emergency call-out for this Ford Ranger after its owner, who lives in Scotland, found herself stranded in Taunton due to an AdBlue system fault.

With a long journey home ahead, getting the vehicle back on the road was the priority.

Our mobile service allowed us to attend the vehicle directly, diagnose the issue and carry out the necessary ECU programming without the need for recovery to a workshop.

The Ranger runs a Siemens/Continental SID209 ECU, which was accessed directly for programming.

Work Carried Out:
• Emergency mobile call-out
• Advanced diagnostic inspection
• AdBlue system software solution
• SID209 ECU programming
• Original ECU software securely backed up
• Post-programming diagnostic checks

A great example of how our mobile ECU programming service can help customers when unexpected vehicle issues arise, even when they're hundreds of miles from home.

Fully mobile service covering North Somerset & South Wales, with emergency call-outs available subject to availability.

Message us for ECU diagnostics, programming and tuning enquiries.

Finance options available.

11/10/2026

BMW E90 M3 – Cold Start Delete

This BMW E90 M3 came to us for a cold start delete following the installation of an aftermarket exhaust system.

The S65 4.0L naturally aspirated V8 is known for its distinctive sound, but the factory cold start procedure raises engine speed on startup, making it particularly loud with an aftermarket exhaust fitted.

Our ECU calibration removes the factory cold start routine, allowing the engine to settle into a quieter, more controlled idle immediately after startup, while retaining its original performance and V8 character.

This M3 runs a Siemens MSS60 ECU, which was calibrated via AutoTuner using OBD connection, with the original ECU software securely backed up prior to programming.

Included:
• Cold start delete
• Bench ECU programming
• Original ECU file securely backed up
• Factory performance calibration retained

Dealer-level diagnostics carried out before and after programming.

Fully mobile service covering North Somerset & South Wales.

Message us to get booked in.

Finance options available.

07/10/2026

BMW X1 18d – Stage 1 ECU Calibration

Engine Tune:

Stock 136 hp / 300 Nm
Stage 1 180 hp / 400 Nm

+44 hp / +100 Nm

This BMW X1 18d had been taken off the road due to issues with its blocked DPF, EGR system and intake manifold swirl flaps.

Our software solutions were installed to address these issues, alongside our Stage 1 ECU calibration to improve overall performance and drivability.

The X1 18d can feel sluggish and underpowered in standard form, particularly when accelerating or overtaking. Our Stage 1 calibration delivers a substantial increase in mid-range torque, improved throttle response and stronger acceleration throughout the rev range, making it a much more capable and enjoyable everyday vehicle.

This vehicle also received several additional calibration options, including DPF, EGR and intake manifold swirl flap software solutions, alongside speed limiter removal.

This X1 runs a Bosch EDC17C50 ECU and was calibrated via AutoTuner OBD, with the original ECU software securely backed up prior to programming.

Included:
• Stage 1 ECU calibration
• DPF software solution
• EGR software solution
• Intake manifold swirl flap solution
• Speed limiter solution
• Original ECU file securely backed up

Dealer-level diagnostics carried out before and after tuning.

Fully mobile service covering North Somerset & South Wales.

Check your gains with our BHP Checker or message to get booked in.

Finance options available.

01/10/2026

BMW G-Series M240i – MG1 ECU Unlock

Another in-house MG1 unlock completed, this time on a BMW M240i.

Unlock Process:

• Full diagnostics & vehicle health check
• MG1 ECU type verification via OBD
• ECU removed & unlocked directly on the bench
• OBD verification confirming the ECU is unlocked and ready for tuning

The customer wanted to use MHD for their own tuning, with MTechTuning carrying out the ECU unlock and verification only.

No ECU mail-in. No days waiting. No second appointment.
Unlocked in-house and ready to use with MHD.

Advanced dealer-level diagnostics included.

Fully mobile service available.

Get in touch now or visit our website for our INSTANT BHP CHECKER – link in bio.

26/09/2026

Volkswagen Golf R Mk8 Stage 1 + OBD ECU Unlock

Engine Tune:
Stock — 320 hp / 420 Nm
Stage 1 — 405 hp / 525 Nm
+85 hp / +105 Nm

The Volkswagen Golf R Mk8 combines the 2.0-litre turbocharged EA888 engine with Volkswagen’s four-wheel-drive system, producing 320 hp and 420 Nm from factory with excellent potential for further performance through software.

Our Stage 1 ECU calibration takes this example to approximately 405 hp / 525 Nm, delivering stronger acceleration, increased mid-range performance and improved throttle response while retaining smooth, progressive drivability.

This Golf R was equipped with the Continental Simos 19.6 ECU, requiring an unlock before tuning. Using our supported OBD solution, the ECU was unlocked, backed up and Stage 1 tuned directly through the diagnostic port in a single appointment — no ECU removal or mail-in required.

Included:

• Simos 19.6 OBD ECU Unlock
• Stage 1 ECU Calibration
• Speed Limiter Solution
• ECU Backup
• Advanced Dealer-Level Diagnostics

Dealer-level diagnostics were carried out before and after programming to check the vehicle's condition prior to calibration and verify correct operation afterwards.

Fully mobile service covering Somerset and surrounding areas — we come to you.

We specialise in Volkswagen & Audi ECU remapping, Simos ECU unlocking, EA888 performance tuning and advanced diagnostics.

Got a Volkswagen or Audi you're looking to tune? Get in touch with your registration to check compatibility, or visit our website and use our Instant BHP Checker.

0% finance available.

21/09/2026

BMW M135i F40 Stage 1 + Same-Day ECU Unlock

Engine Tune:
Stock — 306 hp / 450 Nm
Stage 1 — 335 hp / 500 Nm
+29 hp / +50 Nm

This BMW F40 M135i uses BMW’s B48 2.0-litre turbocharged petrol engine, paired with the xDrive system. From factory it produces 306 hp and 450 Nm, with further performance available through ECU calibration.

Our Stage 1 calibration takes this example to approximately 335 hp / 500 Nm, improving mid-range torque, throttle response and acceleration while retaining the smooth, progressive drivability expected from the car.

This vehicle was equipped with the newer locked Bosch MG1CS201 ECU, requiring an ECU unlock before tuning. Using our same-day mobile ECU unlock service, the ECU was removed, unlocked, refitted and tuned at the customer’s location within the same appointment — no ECU mail-in, no days waiting and no second appointment.

Included:

• Same-Day Bosch MG1CS201 ECU Unlock
• Stage 1 ECU Calibration
• Speed Limiter Solution
• BMW Sports Display Recalibration
• ECU Backup
• Advanced Dealer-Level Diagnostics

Dealer-level diagnostics were carried out before and after programming to check the vehicle's condition prior to calibration and verify correct operation afterwards.

🔓 Mobile BMW MG1/MD1 ECU unlocking now available.

Supported newer BMW ECUs can be unlocked and tuned at your home or workplace in a single appointment.

Fully mobile service covering Somerset and surrounding areas — we come to you.

We specialise in BMW ECU remapping, MG1/MD1 ECU unlocking, B48/B58 performance tuning and advanced diagnostics.

Got a newer BMW with a locked ECU? Get in touch with your registration to check compatibility, or visit our website and use our Instant BHP Checker.

0% finance available.

17/09/2026

BMW 330e G20 Stage 1 + Same-Day ECU Unlock + Gearbox Tune

Engine Tune:
Stock — 292 hp / 420 Nm
Stage 1 — 400 hp / 700 Nm
+108 hp / +280

This BMW G20 330e combines BMW’s B48 2.0-litre turbocharged petrol engine with its plug-in hybrid electric system, giving it excellent tuning potential. With the combustion engine and hybrid system working together, substantial improvements in overall performance can be achieved through careful ECU calibration.

Our Stage 1 ECU calibration takes this example from a combined 292 hp / 420 Nm to approximately 400 hp / 700 Nm, delivering a significant increase in mid-range performance, much stronger acceleration and improved throttle response while retaining smooth, progressive drivability for everyday use.

This vehicle was equipped with the newer locked Bosch MG1CS201 ECU, meaning an ECU unlock was required before tuning. Using our same-day mobile ECU unlock service, the ECU was removed, unlocked, refitted and tuned at the customer’s location within the same appointment, no ECU mail-in, no days waiting and no second appointment.

We also calibrated the ZF 8HP gearbox to complement the additional engine performance, optimising shift behaviour and torque management to work alongside the Stage 1 ECU calibration.

Included:

• Same-Day Bosch MG1CS201 ECU Unlock
• Stage 1 ECU Calibration
• ZF 8HP Gearbox Calibration
• Speed Limiter Solution
• BMW Sports Display Recalibration
• Gear Display activation
• Advanced Dealer-Level Diagnostics

Dealer-level diagnostics were carried out before and after programming to check the vehicle's condition prior to calibration and verify correct operation afterwards.

🔓 Mobile BMW MG1/MD1 ECU unlocking now available.

Supported newer BMW ECUs can be unlocked and tuned at your home or workplace in a single appointment.

Fully mobile service covering Somerset and surrounding areas, we come to you.

We specialise in BMW ECU remapping, MG1/MD1 ECU unlocking, ZF gearbox tuning, B48/B58 performance tuning and advanced diagnostics.

Got a newer BMW with a locked ECU? Get in touch with your registration to check compatibility, or visit our website and use our Instant BHP Checker.

0% finance

15/09/2026

BMW M340i G20 Stage 1 + Same-Day ECU Unlock + Gearbox Tune

Engine Tune:
Stock — 374 hp / 500 Nm
Stage 1 — 440 hp / 620 Nm
+66 hp / +120 Nm

The BMW G20 M340i combines BMW’s B58 3.0-litre turbocharged straight-six with the ZF 8-speed transmission, making it an exceptionally capable platform with plenty of additional performance available through software.

Our Stage 1 ECU calibration takes this example from 374 hp / 500 Nm to approximately 440 hp / 620 Nm, delivering a substantial increase in mid-range torque, stronger acceleration and improved throttle response while maintaining smooth, OEM-like drivability.

This vehicle was equipped with the newer locked Bosch MG1CS201 ECU, meaning an ECU unlock was required before tuning. Using our same-day mobile ECU unlock service, the ECU was unlocked and the vehicle tuned at the customer’s location within the same appointment — no ECU mail-in, no days waiting and no second appointment.

We also calibrated the ZF 8HP gearbox to work alongside the additional engine performance, improving shift response and torque management. Gear display activation was enabled at the same time, allowing the selected gear to be displayed during normal driving.

Included:

• Same-Day Bosch MG1CS201 ECU Unlock
• Stage 1 ECU Calibration
• ZF 8HP Gearbox Calibration
• Gear Display Activation
• Speed Limiter Removal
• BMW Sports Display Recalibration
• Original ECU File Securely Backed Up
• Advanced Dealer-Level Diagnostics

Dealer-level diagnostics were carried out before and after programming to check the vehicle's condition prior to calibration and verify correct operation afterwards.

🔓 Mobile BMW MG1/MD1 ECU unlocking now available.

Supported newer BMW ECUs can be unlocked and tuned at your home or workplace in a single appointment.

📍 Fully mobile service covering Somerset and surrounding areas — we come to you.

We specialise in BMW ECU remapping, MG1/MD1 ECU unlocking, ZF gearbox tuning, B48/B58 performance tuning and advanced diagnostics.

Got a newer BMW with a locked ECU? Get in touch with your registration to check compatibility, or visit our website and use our Instant BHP Checker.

💳 0% finance options available.

09/09/2026

BMW 320i G20 Stage 1 Calibration + Same-Day ECU Unlock + Gearbox Tune

Engine Tune:
Stock 184 hp / 290 Nm
Stage 1 260 hp / 420 Nm
+76 hp / +130 Nm

The BMW G20 320i uses BMW’s B48 2.0 turbo engine, offering excellent tuning potential. Our Stage 1 ECU calibration delivers a substantial increase in power and torque, improving mid-range performance, throttle response and overall acceleration while retaining smooth OEM-like drivability.

This vehicle was equipped with the newer locked Bosch MG1CS201 ECU, requiring a bench unlock before tuning. Using our same-day mobile ECU unlock service, the ECU was removed, bench unlocked and refitted at the customer’s location before completing the Stage 1 calibration and gearbox tune — all in a single appointment, with no ECU mail-in or days waiting.

The customer had also fitted an aftermarket exhaust, allowing us to add an M-Lite burble activation to give the car some extra character without going for an overly aggressive pops & bangs setup.

Included:

• Same-Day Bosch MG1CS201 Bench Unlock
• Stage 1 ECU Calibration
• Gearbox Calibration
• M-Lite Burble Activation
• Speed Limiter Removal
• BMW Sports Display Recalibration
• Original ECU File Securely Backed Up
• Advanced Dealer-Level Diagnostics

Dealer-level diagnostics were carried out before and after programming to confirm the vehicle was operating correctly and that no underlying faults were present prior to calibration.

Mobile BMW MG1/MD1 ECU unlocking now available — supported newer BMW ECUs can be unlocked and tuned at your home or workplace in the same appointment.

Fully mobile service covering Somerset and surrounding areas — we come to you.

We specialise in BMW ECU remapping, MG1/MD1 ECU unlocking, gearbox tuning, B48/B58 performance tuning and advanced diagnostics.

Got a newer BMW with a locked ECU? Get in touch with your registration to check unlock compatibility, or visit our website to use our Instant BHP Checker.

0% finance options available.

07/09/2026

BMW 128ti F40 Stage 1 Calibration + Same-Day ECU Unlock

Engine Tune:
Stock 265 hp / 400 Nm
Stage 1 310 hp / 500 Nm
+45 hp / +100 Nm

The BMW F40 128ti combines BMW’s B48 2.0 turbo engine with a limited-slip differential and front-wheel drive, making it a seriously capable hot hatch. Our Stage 1 ECU calibration improves mid-range torque, throttle response and overall acceleration while retaining smooth OEM-like drivability.

Like the M235i xDrive we recently tuned, this 128ti is equipped with the newer locked Bosch MG1CS201 ECU, requiring a bench unlock before tuning. Using our new same-day mobile ECU unlock service, the ECU was removed, bench unlocked and refitted at the customer’s location before the Stage 1 calibration was completed — all in a single appointment, with no ECU mail-in or days waiting.

Included:

• Same-Day Bosch MG1CS201 Bench Unlock
• Stage 1 ECU Calibration
• Speed Limiter Removal
• BMW Sports Display Recalibration
• Original ECU File Securely Backed Up
• Advanced Dealer-Level Diagnostics

Dealer-level diagnostics were carried out before and after programming to confirm the vehicle was operating correctly and that no underlying faults were present prior to calibration.

🔓 Mobile BMW MG1/MD1 ECU unlocking now available — supported newer BMW ECUs can be unlocked and tuned at your home or workplace in the same appointment.

🏡 Fully mobile service covering Somerset and surrounding areas, we come to you.

We specialise in BMW ECU remapping, MG1/MD1 ECU unlocking, gearbox tuning, B48/B58 performance tuning and advanced diagnostics.

Got a newer BMW with a locked ECU? Get in touch with your registration to check unlock compatibility, or visit our website to use our Instant BHP Checker.

0% finance options available

MTechTuning

15/10/2026

11/10/2026

07/10/2026

01/10/2026

26/09/2026

21/09/2026

17/09/2026

15/09/2026

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07/09/2026

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