Mercedes SLK 250 CDI (2.1) 204 hp — Stage 1 file (+31 hp)
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Stage 1 file for Mercedes SLK 250 CDI (2.1) 204 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Mercedes SLK 250 CDI (2.1) 204 hp ECU
Mercedes SLK (2011 - R172) 250 CDI (2.1) 204 hp — premium diesel engine of the passenger segment of the Mercedes-Benz Group AG (Mercedes-Benz, AMG, Maybach, Smart, EQ) group (Германия, 1926). Stage 1 chip tuning raises power from 204 to 235 hp (+31 hp, +15%) and torque from 500 to 550 Nm (+50 Nm). This engine ships with different ECU variants: Delphi CRD2, Delphi CRD3.10, Delphi CRD3.1R, Delphi CRD3.2R, Delphi CRD3.50, Delphi CRD3.59, Delphi CRD3.7A, Bosch DCU17PC01, Bosch DCU17PC41, Siemens/Continental VGSx-NAG2, Delphi CRD3. The flashing method is determined by the specific unit: OBD, Bench or Boot mode. In the CHIPOK database: 11 configurations · 11 ECU variants. A diesel built in 2011 — the Tricore ECU era; OBD flash works on most production revisions.
4MATIC all-wheel drive is Mercedes' signature system, fitted to most models. The Mercedes-Benz Group AG (Daimler AG until 2022) comprises Mercedes-Benz, AMG, Maybach, Smart and the EQ line. AMG is the performance division of Mercedes (since 1967), building engines on the 'one man, one engine' principle in Affalterbach. The factory calibration on Mercedes diesels is conservative, leaving headroom for Stage 1 while preserving engine life. DPF/SCR with AdBlue is standard on all Euro-6 Mercedes diesels. Mid-generation diesel models use standard OBD read/write.
The AMG community is active in Germany, but the protection is the toughest in the industry, so Stage 1 on AMG usually requires Bench. The Mercedes community in Europe has a large pool of available Stage files for the standard models. Stage 1 on Mercedes often requires refreshing the adaptations after the flash. The Mercedes premium segment is a high-output platform with Stage 2 potential. High-output Mercedes engines are premium-class with solid headroom for Stage 1. On modern high-output Mercedes, Bench reading is often required because of the encryption.
Frequently asked questions
How much horsepower does Stage 1 add for the Mercedes SLK 250 CDI (2.1) 204 hp?
Stage 1 for the Mercedes SLK 250 CDI (2.1) 204 hp adds +31 hp — power increases from 204 to 235 hp (+15%). Torque rises from 500 to 550 Nm (+50 Nm).
What does a Stage 1 remap of the Mercedes SLK 250 CDI (2.1) 204 hp include?
Stage 1 on the Mercedes SLK 250 CDI (2.1) 204 hp is a software ECU calibration with no hardware changes. The key maps (boost/ignition/lambda/torque) are adjusted while factory tolerances are preserved. The gain is +31 hp with no hardware changes.
What does Stage 1 give on the powerful Mercedes SLK 250 CDI (2.1) 204 hp?
Stage 1 on the powerful Mercedes SLK 250 CDI (2.1) 204 hp “lifts” the factory limiters with no hardware changes. The gain is noticeable in the mid and upper range. There is headroom left for moving to Stage 2 (downpipe + intake + intercooler).
How does Stage 2 differ from Stage 1 on the Mercedes SLK 250 CDI (2.1) 204 hp?
Stage 2 for the Mercedes SLK 250 CDI (2.1) 204 hp is Stage 1 plus hardware changes: a downpipe, a larger intake and a performance intercooler. The gain is considerably higher, but it requires professional component selection.
How many ECU variants does the Mercedes SLK 250 CDI (2.1) 204 hp have?
The Mercedes SLK 250 CDI (2.1) 204 hp has 11 ECU variants: Delphi CRD2, Delphi CRD3.10, Delphi CRD3.1R, Delphi CRD3.2R, Delphi CRD3.50, Delphi CRD3.59, Delphi CRD3.7A, Bosch DCU17PC01, Bosch DCU17PC41, Siemens/Continental VGSx-NAG2, Delphi CRD3. Before flashing you need to read the specific unit — calibration is done for the exact hardware/software.
Does Stage 1 void the warranty on the Mercedes SLK?
Stage 1 on the Mercedes SLK voids the factory warranty on the engine and transmission — this is standard for all manufacturers. CHIPOK provides its own warranty on the quality of the remap.
How quickly is chip tuning of the Mercedes SLK 250 CDI (2.1) 204 hp done?
The full remap cycle for the Mercedes SLK — from reading to writing the final file — takes 30-90 minutes depending on the ECU access method. The file is prepared at CHIPOK in 5-30 minutes.
Can you return to stock after Stage 1 on the Mercedes SLK?
The original Mercedes SLK ECU is always saved before flashing. Rolling back to the factory firmware is done with the same programmer in 25-30 minutes.
How much does Stage 1 cost for the Mercedes SLK 250 CDI (2.1) 204 hp?
The cost of Stage 1 for the Mercedes SLK 250 CDI (2.1) 204 hp is calculated in the calculator on this page — you select the options (DPF off, EGR off, AdBlue off, DTC off, etc.) and the price is capped by the package Max Price. Payment is by credits (1 cr = 1 €), with no subscriptions.