450 CDI (4.0) - 306ch Tuning
Mercedes GL — Detailed power and torque gains by stage.
Gains by stage(2)
Power
306 hp
Torque
700 Nm
diesel
Power
306→350ch
+44 ch
+14%
Torque
700→810Nm
+110 Nm
+16%
OriginalTuned
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Everything about 450 CDI (4.0) - 306ch tuning
Tuning the 450 CDI (4.0) - 306ch found in the Mercedes GL is one of the most popular performance upgrades. This engine offers excellent potential for power and torque gains.
On ChiptuneMAP, find verified gain data for each stage, compare tuner prices and find the ideal professional for your project.
Gains summary by stage
On the Mercedes GL 450 CDI (4.0) - 306ch, tuning delivers up to +84 hp and +190 Nm depending on the stage. Stock vs tuned figures:
| Stage | Power | Torque | Indicative price |
|---|---|---|---|
| Stage 1 | 306 → 350 hp | 700 → 810 Nm | — |
| Stage 2 | 306 → 390 hp | 700 → 890 Nm | — |
Frequently asked questions
What gains can I expect from tuning the 450 CDI (4.0) - 306ch?
Tuning the 450 CDI (4.0) - 306ch (Mercedes GL) delivers significant power and torque gains depending on the chosen stage. Stage 1, with no hardware modifications, offers the best gain-to-reliability ratio.
Is tuning reliable on the 450 CDI (4.0) - 306ch?
Yes, the 450 CDI (4.0) - 306ch is known for its reliability when tuned, especially at Stage 1. It's essential to use a certified tuner with maps tailored to your engine.
How much does Mercedes GL tuning cost?
Prices vary by stage and tuner. Check our directory to compare rates from professionals near you.
Should I get a tuning box or an ECU remap?
ECU remapping (modifying the engine control unit map) delivers better results and integration than a plug-in tuning box. It's customized for each engine.
How do I find a tuner for my Mercedes GL?
Use the ChiptuneMAP directory to find a certified tuner near you. Compare reviews, prices and specialties.