A cheap OBD2 reader can be useful on an original BMW M2, but a reassuring engine scan is only part of the picture. The F87 also has BMW chassis electronics, an electronically controlled rear differential and, on some cars, a seven-speed M DCT gearbox. If one of those systems is the reason you are buying a scanner, you need confirmed access to that system.
This is a documentary buying guide. Unusual Cars has not independently tested this vehicle, scanner or function. Exact access varies by build, controller, vehicle software, interface and tool version.
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Quick scanner choice
| Your main question | Sensible buying route | Confirm before paying |
|---|---|---|
| Engine warning and emissions codes | Generic EOBD reader for a first look | Engine reporting only; save codes and freeze-frame information |
| BMW chassis, differential or M DCT warning | BMW-aware handheld, or a supported phone system | Original N55 F87, the fitted controllers and the required readouts |
| Regular phone-based reports | BimmerLink with a developer-supported adapter | Phone compatibility, separate app purchase and actual module access |
| Broader workshop investigation | BMW specialist using legitimate BMW software | Vehicle coverage, report scope and the work being authorised |
Three checks before buying
Which BMW M2 does this guide cover?
This guide covers UK rear-wheel-drive, fixed-roof F87 M2 Coupés in the original 2016–2018 N55 range. The engine is the 3.0-litre turbocharged straight-six. Factory six-speed manual and optional seven-speed M DCT cars are included. BMW’s BMW UK original M2 launch and BMW 2018 original M2 technical specifications establish those powertrain distinctions.
The S55-powered M2 Competition introduced in 2018, the M2 CS and the later G87 are excluded. A car registered in 2018 needs an engine and build check: the calendar year alone does not settle which M2 it is. BMW’s BMW UK M2 Competition introduction explains the important change.
M235i and M240i Coupés have their own guide. Imports, engine swaps and materially changed engine or controller software need separate compatibility confirmation. A photograph, badge or seller’s use of “F87 compatible” is not enough to identify the fitted electronics. Cosmetic changes do not, by themselves, prove the engine software has been changed.
What can a generic OBD2 scanner tell you?
Generic EOBD is the engine-emissions starting point. It can help retrieve supported engine trouble codes, readiness information and basic engine data. It may give you a useful clue when the engine warning light appears. It does not establish enhanced access to BMW’s stability control, differential, transmission or climate controllers. See Gendan EOBD engine tools.
The useful distinction is the scope of the report. “No engine codes” means the tool did not find codes in the engine information it could access. It does not mean every controller answered, or that the mechanical condition of the car has been checked. Ask whether the scanner identifies the modules it reached and those it could not communicate with.
For a drivetrain warning, preserve the exact dashboard wording and whatever report is available. Avoid turning a broad warning into a shopping list for a turbocharger, sensor or gearbox. The next question is which controller recorded the event and what supporting information it retained.
Active M Differential and DSC: the M2-specific buying question
The original M2 uses an electronically controlled Active M Differential working with information from DSC, BMW’s stability-control system. That is documented in BMW UK original M2 launch. An engine-only reader does not provide a complete diagnostic report for those separate chassis systems.
When the warning is about stability or the rear differential, ask the tool supplier to confirm access to the actual DSC and differential controller fitted to your N55 F87. Ask for fault-memory reading first. If you want live information, name the value and ask whether it is available for that build. A general claim of “BMW ABS support” does not answer a differential question.
Keep the report in its original form, including the controller name, full code, description and status. A secondary warning elsewhere in the car may be useful context, but it does not establish that the second controller has failed. The report needs interpretation alongside the symptom.
Rear-differential noise is not a clean-code question
BMW’s BMW SI B33 04 16 September 2016 describes a mechanical limited-slip clutch defect and rear-differential noise on certain cars, including M2s, built between 12 May and 4 July 2016. Eligibility depended on the affected vehicle record. This North American service action does not establish a UK recall, repair entitlement or a defect in every car built in that period.
Its buying lesson is straightforward: electronic access and mechanical inspection answer different questions. If a used M2 has rear-differential noise, an empty fault report does not explain the noise or certify the differential. Ask BMW or a suitable specialist to check the VIN, history and actual complaint rather than relying on the scanner alone.
A scanner can still be worthwhile for the electronic warning report. Just keep that purpose separate from assessing noises, wear or a car’s suitability for purchase. A pre-purchase inspection should not be reduced to a screenshot saying “no faults”.
Manual or M DCT: do not buy for the wrong gearbox
The optional automatic in this original M2 is seven-speed M DCT. It is not the eight-speed automatic fitted to many mainstream F-series BMWs. The manual and M DCT choices are documented in BMW UK original M2 launch. A listing that mentions BMW automatic transmission support should identify which transmission it covers.
For an M DCT warning, request confirmation that the tool reads the fitted M DCT controller’s fault memory. If temperature or other data is your reason for buying, request confirmation of that specific readout too. Reading fault memory is a different purchase requirement from adaptations, clutch learning, active tests or software programming.
On a factory manual car, do not buy expecting an M DCT report. A diagnostic tool also cannot certify the clutch, flywheel or internal gearbox simply because the engine report is clear. Describe the symptom to the workshop and provide the available codes without assuming an electronic cause.
A climate-control complaint an engine reader can miss
There is useful F87-specific documentary evidence beyond the engine. BMW’s November 2021 BMW SIB 64 06 13 November 2021 revision11 explicitly adds the M2 to a bulletin about reduced air flow after extended air-conditioning operation. It discusses evaporator freezing and more than one contributing condition. It does not say every M2 has the problem.
For weak air flow that develops during a journey, an engine-emissions scan is not a climate-system investigation. Ask whether the chosen tool can read the fitted IHKA climate controller and whether relevant temperature information is actually available. Record when the symptom appears and how long the system has been operating.
Controller access may help a workshop investigate, but there may be no decisive code. Air-flow and cooling performance still need assessment. This guide does not provide the bulletin’s wiring modifications, coding or repair procedures, or claim that a UK car is covered by its warranty terms.
BMW-aware handheld scanners: a sensible standalone route
A BMW-focused handheld is worth considering if you want a screen and cable without using a phone. The iCarsoft BMM V3.0 documentation advertises broad BMW E/F coverage and lifetime updates through a PC and card reader. Treat the iCarsoft BMM V3.0 as a candidate to verify, rather than a guarantee of every M2 function.
A useful enquiry is: “Can this exact product and current software read engine, DSC, Active M Differential and seven-speed M DCT fault memory on my original N55 F87?” Remove M DCT if your car is manual. Ask separately about any data value you need. Keep the supplier’s written answer with the order.
Our iCarsoft BMM V3.0 buying guide explains the model and software checks. The Amazon banner is a search route, so compare the exact item, seller support and package contents. Similar names and photographs do not establish identical coverage.
BimmerLink and compatible adapters
BimmerLink vehicle eligibility lists the M2 family from 2013. The supported phone app and adapter are separate purchases. The UniCarScan UCSI-2100 UK package is a Bluetooth LE candidate listed for iOS and Android; check the developer’s Developer adapter selector linked by BimmerLink for the actual phone and chassis. The UK BimmerLink listing and release history requires iOS 15 or later and a paid full-version unlock.
That makes BimmerLink a credible route to investigate for this F87. It does not establish that every named differential or M DCT data value is available. Ask about the exact report you want before buying. The app’s advertised ZF 8HP adaptation-value feature is not evidence of the same readout on M DCT.
Use our BimmerLink adapter guide before choosing an Amazon result. A “BimmerLink adapter” search can return different devices and accessories. Check the model number, phone operating system and included parts, and buy the app through its legitimate store.
Where OBDeleven and BMW software fit
OBDeleven vehicle support includes BMW F-series vehicles. BMW-aware diagnostics require an eligible NextGen 2 or OBDeleven 3 device and the BMW-capable app; supported diagnostic access is on the FREE plan. Optional One-Click Apps and Credits are separate. PRO manual coding and adaptations are VAG-specific, not an inherited BMW feature. Check OBDeleven Advanced Diagnostics, OBDeleven BMW features and OBDeleven licence terms.
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For workshop-level investigation, BMW AOS is the legitimate BMW route. Current Windows, interface, vehicle-coverage and entitlement requirements apply; see BMW AOS technical requirements. This is not an app to install casually alongside an arbitrary Bluetooth dongle. A specialist can explain what their authorised setup will investigate.
Paying for a plan, buying a cable or seeing a service-function icon does not establish safe access to a particular command. This guide recommends gathering diagnostic evidence. It does not promise differential calibration, DCT learning, programming or active tests.
How to choose without buying twice
Start with the symptom and the systems you need to read. For an occasional engine-light first look, a basic reader may be enough. For an M2 chassis or M DCT warning, prioritise the named controller report. For regular phone-based records, compare the confirmed app-and-adapter package with a supported handheld.
Before ordering, identify the production date, original N55 engine, manual or M DCT gearbox, phone if relevant and any documented software changes. Ask whether the current package reads the required faults, retains their status and lets you save a useful report. Distinguish included features from optional licences or subscriptions.
Keep a simple record of the complaint: dashboard message, date, mileage and the circumstances in which it appeared. Save the original scan before anyone clears faults. If the scanner cannot reach a module, record that limitation rather than labelling the module fault-free. That makes the information much more useful at the next workshop visit.
Common questions
Will any OBD2 scanner work on an original M2?
A suitable generic reader can be useful for engine-emissions information. It does not establish BMW differential, DSC, M DCT or climate-controller access. Buy for the report you actually need.
Is the 2018 M2 Competition covered?
No. This guide is for the original N55 car. Confirm the engine and build around the 2018 change; Competition and CS use a different scope.
Can BimmerLink prove that the DCT is healthy?
No. Confirmed controller access can provide diagnostic information, but neither an app nor a handheld can certify the gearbox’s mechanical condition from an empty fault report.
Do I need the most expensive scanner?
The useful purchase is the one with confirmed access to your required reports. Broad feature lists, programming claims and extra subscriptions are not substitutes for exact M2 coverage.
More BMW diagnostic guides
Compare the overall routes in our BMW scanner comparison. For a different vehicle scope, see the M235i/M240i F22 guide. Its vehicle scope remains separate.
Browse the BMW diagnostic scanner hub and complete diagnostic-guide directory.
Research reviewed: 13 October 2026. Product coverage, software terms and commercial destinations should be rechecked before publication.
Photo: Calreyn88 / Wikimedia Commons — CC BY-SA 4.0. Resized/framed.
