Mercedes-Benz GLK · Stage 1

Mercedes-Benz GLK 250 CDI Stage 1 Remap

Name: Mercedes-Benz GLK 250 CDI Stage 1 Remap
Brand: Mercedes-Benz

On Mercedes-Benz GLK 250 CDI diesel engines a Stage 1 remap recalibrates the fuel quantity, injection timing, boost pressure and torque limiter maps. No hardware is changed and the original software is backed up. The same engine is sold with different stock outputs across generations, so the gain depends on your version.

How much bhp does Mercedes-Benz GLK 250 CDI chip tuning add?

It depends on the generation and the stock output. 250 CDI engines with 204 bhp reach 240 bhp with a Stage 1 remap; the largest gain is +36 bhp (X204 250 CDI 204hp). Pick your version in the table below.

Book an appointment Mercedes-Benz GLK: all engines & Stage 1

Mercedes-Benz GLK 250 CDI: Stage 1 figures by generation and year

Year / chassis: X204 - 2010+

Engine	Power	Torque	Gain
Mercedes-Benz GLK 250 CDI 204hp	204 → 240 bhp	500 → 580 Nm	+36 bhp

Year / chassis: X204 - 2008 - 2010

Engine	Power	Torque	Gain
Mercedes-Benz GLK 250 CDI 204hp	204 → 240 bhp	500 → 580 Nm	+36 bhp

In Taiwan

Where can this be done near you?

GP Power ECU applies the software at its workshop in Hukou, Hsinchu, using EcuPrime-developed files; workshops can also order the file directly.

ENGINE FAMILY

About the Mercedes-Benz OM651 2.1 CDI (200 / 220 / 250 CDI, 2008–2018)

The OM651 is the 2.1-litre four-cylinder diesel of the post-2008 C, E, GLK, GLC, ML, Vito and Sprinter, offered from 136 to 204 hp. Most versions are twin-turbocharged and the hardware is largely shared across outputs.

How a Stage 1 remap works on the Mercedes-Benz GLK 250 CDI

Stage 1 recalibrates injection, rail pressure, boost and the torque limiter. The gain is especially clear on the 200 and 220 CDI outputs. A full low-rev torque curve results, matched to the 7G-Tronic or 9G-Tronic gearbox.

Pre-remap checklist

Injectors and injector seals (Delphi injector issue on early production).
Timing chain noise and tensioner condition.
DPF load and, where fitted, the AdBlue system.
EGR valve and swirl flap mechanism.

This section is based on GP Power ECU workshop experience; the power and torque figures come from the catalogue measurement above.

Frequently asked questions

How much bhp does Mercedes-Benz GLK 250 CDI chip tuning add?

It depends on the generation and the stock output. 250 CDI engines with 204 bhp reach 240 bhp with a Stage 1 remap; the largest gain is +36 bhp (X204 250 CDI 204hp). Pick your version in the table below.

What is the difference between Stage 1 and Stage 2 on the Mercedes-Benz GLK 250 CDI?

Stage 1 is software only: no part of the car is changed and the figures in the table apply to this software. Stage 2 is software prepared for hardware changes such as the exhaust, intercooler or intake; the hardware comes first, then the software.

Will chip tuning damage the engine?

No. Values stay inside the safety margin the manufacturer leaves; engine, gearbox and turbo limits are not exceeded. Every file is verified with a road test and data logging. If the car needs maintenance first (worn injectors, blocked filter, weak clutch) we tell you before starting.

Will my fuel consumption go up?

With the same driving style it usually drops, because you hold the same speed at lower revs and less throttle. If you use the extra power, consumption naturally rises. It is down to your right foot.

How long does it take? Do I leave the car?

Most cars take 1–2 hours and you get the car back the same day; no need to leave it. Some models need the ECU removed, which takes longer — we tell you when booking.

Can I go back to stock later?

Yes. The original file is read and archived before any work. We restore the factory software free of charge whenever you ask.

What is checked on the Mercedes-Benz GLK 250 CDI before remapping?

Before working on the Mercedes-Benz OM651 2.1 CDI (200 / 220 / 250 CDI, 2008–2018) we check: Injectors and injector seals (Delphi injector issue on early production). Timing chain noise and tensioner condition. DPF load and, where fitted, the AdBlue system. EGR valve and swirl flap mechanism. If something needs attention, maintenance comes first; the remap is applied to a healthy engine.