320 CDI (3.0) - 235ch Tuning
Mercedes S — Detailed power and torque gains by stage.
Gains by stage(2)
Power
235 hp
Torque
540 Nm
diesel
Power
235→265ch
+30 ch
+13%
Torque
540→600Nm
+60 Nm
+11%
OriginalTuned
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Everything about 320 CDI (3.0) - 235ch tuning
Tuning the 320 CDI (3.0) - 235ch found in the Mercedes S 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 S 320 CDI (3.0) - 235ch, tuning delivers up to +55 hp and +120 Nm depending on the stage. Stock vs tuned figures:
| Stage | Power | Torque | Indicative price |
|---|---|---|---|
| Stage 1 | 235 → 265 hp | 540 → 600 Nm | — |
| Stage 2 | 235 → 290 hp | 540 → 660 Nm | — |
Frequently asked questions
What gains can I expect from tuning the 320 CDI (3.0) - 235ch?
Tuning the 320 CDI (3.0) - 235ch (Mercedes S) 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 320 CDI (3.0) - 235ch?
Yes, the 320 CDI (3.0) - 235ch 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 S 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 S?
Use the ChiptuneMAP directory to find a certified tuner near you. Compare reviews, prices and specialties.