ORIGINAL / FACTORY Petrol 200 K 184hp

Mercedes-Benz SLK 230K Petrol 139.7 kW (190 HP) Original

050100150200 1000200030004000500060007000 184 HP +0 250 Nm +0 HP Nm RPM 060120180240
Stock Original / Factory HP / Nm projection
184 HP Factory calibration
Stock backup file — 250 Nm · Petrol

Calibrated ECU file for . Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.

16,293 calibration files in catalog · 9,693 engines · 400+ ECU platforms · Engineering since 2012 · WhatsApp support · < 30 min first response
Performance Projection Engine #5239 · Gains DB
MATCHED ENGINE 200 K 184hp M271.946 1.8L Petrol Factory
050100150200 1000200030004000500060007000 184 HP +0 250 Nm +0 HP Nm RPM 060120180240
Stock Factory HP (left) · Nm (right) · Curve shape typical for this ECU family
Real data from Gains API Dyno curve = typical ECU-family projection Final gains depend on fuel, altitude, wear

Vehicle & ECU specifications

Exact vehicle, engine and ECU identifiers this calibration file is written for. Cross-check against your ECU before flashing.

Vehicle make Mercedes-Benz
Vehicle model Slk 230k
Model year 2005
Fuel / Induction Petrol
Factory power 139.7 kW (190 HP)
ECU manufacturer Siemens
ECU hardware 5WK90403
Calibration stage Original (Factory)
Cylinder capacity 1796 CC
Compression ratio 8,5 : 1
Bore × Stroke 82,0 X 85,0 mm
OEM engine code M271.946
File format BIN / ORI
Checksum Pre-corrected (ready to flash)
Delivery Instant download after payment

Engine performance matrix

Power, torque and fuel-economy figures for every tuning stage on this engine, sourced from the tuning-database Gains API. Values are healthy-engine crank numbers; real on-road gains vary with fuel, altitude and mechanical condition.

Engine200 K 184hp CodeM271.946 Displacement1.8L Capacity1796 CC Compression8,5 : 1 Bore × Stroke82,0 X 85,0 mm FuelPetrol Engine ID#5239
Stage Power Torque Δ HP Δ Nm
Original / Factory 184 HP 250 Nm — —
Stage 1 204 HP 270 Nm +20 (10.9%) +20
Fuel economy gain (vs. factory map, same driving profile): combined cycle −8% , full-load cruise −12%. Diesel calibrations typically net bigger combined-cycle savings thanks to shorter duty-cycle on low-load driving.

About this calibration file

This is the factory (original) ECU calibration for the 2005 Mercedes-Benz Slk 230k Petrol, extracted from a genuine stock control unit. Use it as a verified backup before flashing any performance tune, or as a reference when recovering an ECU from a failed write.

This file matches a Siemens ECU with hardware number 5WK90403. Verify both identifiers in your flashing tool before writing — an ID mismatch is the most common cause of a bricked ECU. If you are unsure, upload a read of your original file via the file-request wizard and our engineers will confirm compatibility before you flash.

The file is delivered as a ready-to-flash BIN (and ORI backup where applicable) compatible with all major tools — KESS V2/V3, KTAG, AutoTuner, CMDFlash, Dimsport New Genius, MPPS, Flex, BFlash, PCMFlash, MMFlash — via OBD, bench or boot-mode as supported by your ECU family. Checksums are pre-computed and verified; no additional checksum tool is required. All files include a free revision if post-flash logs reveal a fuelling, boost or EGT issue.

Frequently asked questions

The file is written for the exact ECU hardware 5WK90403 (Siemens) listed in the specifications. Read your ECU with any supported tool (KESS, KTAG, AutoTuner, CMD, etc.) and compare the hardware + software numbers against the ones on this page. If they match exactly, the file is a direct fit. If you're not 100% sure, upload your original read via the file-request wizard and our engineers will confirm within minutes — no cost, no obligation.

Two reasons. First, if your ECU write failed mid-flash and you need a verified stock image to recover from — this file restores the unit to the exact calibration it left the factory with. Second, if you plan to experiment with a tune and want a known-good rollback point that is guaranteed identical to a Mercedes-Benz dealer programming.

Instant. Immediately after payment clears (typically < 30 seconds on Stripe / PayPal), the download link appears in your account dashboard and is also emailed to you. The link is a signed, expiring URL — download it within 24 hours; if it expires, just re-generate from the dashboard at any time.

Pre-corrected. Every tuning file we sell is processed through CHKSuite (our in-house checksum engine) before it reaches your download link. You can flash it directly with KESS, KTAG, AutoTuner, CMD, Dimsport or any other supported tool — no extra checksum step required. A zero-CRC write to a modern Bosch/Siemens/Delphi ECU bricks the unit, so this is non-negotiable.

Contact us on WhatsApp or through the dashboard support thread. Free revisions are included for the same stage on the same ECU — send us a live log (via VCDS, INPA, EcuConnect, OBDeleven or similar) and we'll adjust timing, boost, rail pressure or smoke limits and re-issue the file. A failed flash itself (write aborted, bricked ECU) is recoverable with our Original file and a bench tool.

This product contains a complete original ECU backup (stock file) for MB SLK 230K 2005 Benzin 139.7KW with Siemens 5WK90403 and software ID 1M10005901005. This original file corresponds to a factory engine output of approximately 139.7 kW (~190 HP). This file is ideal for ECU cloning, restoring the car back to stock and using it as a safe base for future remaps.

All ECU tuning files from TUNING-DATABASE are prepared for professional use. They are useful whenever you search by ECU ID, hardware or software number such as 5WK90403, 1M10005901005. Use this file for diagnostics, cloning, recovery or as a base for custom remapping.

SHA-256 fingerprint17D30F9D 9E683B2F BE6931A3 3594F66D 2C5D3D50 5A28A05C D45E0A9A 45E34116

Same engine — other calibrations

Alternative stages for the same ECU: Mercedes-Benz family