Mercedes-Benz E · Stage 1

Mercedes-Benz E 300 CDI Stage 1 Remap

Name: Mercedes-Benz E 300 CDI Stage 1 Remap
Brand: Mercedes-Benz

A Stage 1 remap for the Mercedes-Benz E 300 CDI recalibrates the power and torque maps in the engine control unit (ECU). No hardware is changed and the original software is backed up. The gain depends on the generation and the stock output.

How much bhp does Mercedes-Benz E 300 CDI chip tuning add?

It depends on the generation and the stock output. 300 CDI engines with 204–231 bhp reach 250–270 bhp with a Stage 1 remap; the largest gain is +56 bhp (W212 300 CDI 204hp). Pick your version in the table below.

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

Mercedes-Benz E 300 CDI: Stage 1 figures by generation and year

Year / chassis: W212 - 2013 - 2016

Engine	Power	Torque	Gain
Mercedes-Benz E 300 CDI BlueTec Hybrid 231hp	231 → 260 bhp	540 → 600 Nm	+29 bhp

Year / chassis: W212 - 2009 - 2013

Engine	Power	Torque	Gain
Mercedes-Benz E 300 CDI 204hp	204 → 260 bhp	500 → 600 Nm	+56 bhp
Mercedes-Benz E 300 CDI Bluetec 231hp	231 → 270 bhp	540 → 600 Nm	+39 bhp

Year / chassis: W211 - 2006 - 2009

Engine	Power	Torque	Gain
Mercedes-Benz E 300 CDI Bluetec 211hp	211 → 250 bhp	540 → 600 Nm	+39 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 OM642 3.0 V6 CDI (280 / 300 / 320 / 350 CDI, BlueTEC)

The OM642 is the 3.0-litre V6 diesel of the Mercedes C, E, S, ML, GL, GLE, Vito and Sprinter, from 190 to 265 hp. BlueTEC versions are equipped with AdBlue. It is a refined, torque-focused engine.

How a Stage 1 remap works on the Mercedes-Benz E 300 CDI

Stage 1 recalibrates boost, injection and torque maps for a substantial mid-range torque gain. The automatic gearbox torque capacity is respected. Towing and long-distance performance improve markedly.

Pre-remap checklist

Oil cooler seals and turbo oil leaks, the known issue of this engine.
Intake manifold swirl flap mechanism.
DPF load and AdBlue system (BlueTEC).
Boost leaks and intercooler.

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 E 300 CDI chip tuning add?

It depends on the generation and the stock output. 300 CDI engines with 204–231 bhp reach 250–270 bhp with a Stage 1 remap; the largest gain is +56 bhp (W212 300 CDI 204hp). Pick your version in the table below.

What is the difference between Stage 1 and Stage 2 on the Mercedes-Benz E 300 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 E 300 CDI before remapping?

Before working on the Mercedes-Benz OM642 3.0 V6 CDI (280 / 300 / 320 / 350 CDI, BlueTEC) we check: Oil cooler seals and turbo oil leaks, the known issue of this engine. Intake manifold swirl flap mechanism. DPF load and AdBlue system (BlueTEC). Boost leaks and intercooler. If something needs attention, maintenance comes first; the remap is applied to a healthy engine.