Mercedes-Benz CLK W209 - 2003 - 2009 Engines

Select the Mercedes-Benz CLK W209 - 2003 - 2009 engine that matches your vehicle to see its real standard and upgraded horsepower and torque.

Selecting the correct engine from the 15 listed for the Mercedes-Benz CLK W209 - 2003 - 2009 matters more than the generation alone — ECU hardware and tuning headroom can vary significantly even between engines of similar size.

Frequently asked questions

Which tuning stages does the Mercedes-Benz CLK W209 - 2003 - 2009 support?

It depends on the specific engine — pick yours below and its performance page will show exactly which stages (Stage 1, and Stage 2 where supported) are available.

How fast can a Mercedes-Benz CLK W209 - 2003 - 2009 file be turned around?

Typically a few hours from upload, tracked live in the member panel once your request is open.

Is ECU remapping safe on the Mercedes-Benz CLK W209 - 2003 - 2009?

Yes, when done within the limits set for that specific engine — which is exactly what our stage options are calibrated to. Every file is worked by someone experienced with that engine family.

How do I identify my exact Mercedes-Benz CLK W209 - 2003 - 2009 engine?

Check the ECU sticker under the hood, or the engine code on your vehicle documents — either one will match against the list below.