BMW 5 Series 540I 340hp Remap

Name: BMW 5 Series 540I 340hp ECU Remap
Brand: BMW

Expected gains of +60 BHP and +130 Nm torque

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BHP+60 hp (18%)

Standard

340 hp

Tuned

400 hp

Torque+130 Nm (29%)

Standard

450 Nm

Tuned

580 Nm

Suitability

Moderate (5.5/10)

Gains Profile

Torque-focused

Headroom

High

BMW 5 Series 540I 340hp ECU Remapping

Considering an ECU remap for your BMW 5 Series 540I 340hp? A Stage 1 remap can take this G30/31 - 2016 - 2019 petrol engine from 340 BHP to 400 BHP and from 450 Nm to 580 Nm of torque (naturally aspirated). This engine scores 5.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your BMW 5 Series can achieve.

How this engine compares

24thof 100 BMW 5 Series engines by power gain
86%of the 9,842 engines we hold gain data for see a smaller power increase
89%of engines with torque data see a smaller torque increase

Comparisons are calculated from our own recorded Stage 1 figures.

Assessment

The BMW 5 serie 540I 340hp is a 3.0L naturally aspirated petrol engine producing 340 BHP and 450 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 400 BHP and 580 Nm — a gain of around 60 BHP (18%) and 130 Nm (29%).

This engine has moderate remap suitability, with gains weighted towards torque — you will notice the difference most strongly in mid-range pulling power and in-gear acceleration. The tuning headroom is classified as high, based on the percentage gain available from the factory output.

Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.. High tuned torque: check transmission torque capacity and service history.. Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.

All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.

Considerations

!Naturally aspirated engine: gains are usually limited; results vary widely.

!Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.

!High tuned torque: check transmission torque capacity and service history.

!Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.

Other 5 Series G30/31 - 2016 - 2019 Engines

Engine	BHP	Gain	Torque	Gain	Score
518d 150hp	150 → 190	+40	350 → 400	+50	Excellent (8/10)
520d 163hp	163 → 220	+57	400 → 480	+80	Good (7.5/10)
520i 170hp	170 → 220	+50	250 → 310	+60	Moderate (5.5/10)
520i 184hp	184 → 250	+66	290 → 440	+150	Good (6.5/10)
520d 190hp	190 → 220	+30	400 → 480	+80	Good (7/10)
525d 231hp	231 → 270	+39	500 → 575	+75	Good (7/10)
530e IPerformance 252hp	252 → 340	+88	420 → 540	+120	Good (6.5/10)
530I 252hp	252 → 287	+35	350 → 450	+100	Moderate (5.5/10)
530d 265hp	265 → 310	+45	620 → 720	+100	Good (7/10)
540d 320hp	320 → 400	+80	680 → 800	+120	Good (7.5/10)
M550d 400hp	400 → 460	+60	760 → 880	+120	Good (7/10)
M550I 462hp	462 → 560	+98	650 → 830	+180	Moderate (5.5/10)
M550I 530hp	530 → 650	+120	750 → 880	+130	Moderate (5/10)

Technical Specifications

Fuel Type: Petrol
Aspiration: Naturally Aspirated
Displacement: 3L
Capacity: 2998 CC
Type: Car
Engine Family: BMW 3.0L NA Petrol

ECU & Transmission

Likely ECU Low confidence: Bosch MEVD/MG1 family (varies)
Gearbox Medium confidence: Many variants use ZF 8-speed automatic (where fitted); manuals also exist. At this torque level, transmission and driveline servicing history becomes especially important.

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Confirm Your Vehicle

MakeBMW

Model5 Series

GenerationG30/31 - 2016 - 2019

Engine540I 340hp

All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.

We recommend discussing your specific vehicle with a qualified remap professional before proceeding.