350 (3.7i) - 245ch Tuning
Mercedes S — Detailed power and torque gains by stage.
Gains by stage(4)
Power
245 hp
Torque
344 Nm
essence
Power
245→250ch
+5 ch
+2%
Torque
344→349Nm
+5 Nm
+1%
OriginalTuned
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Everything about 350 (3.7i) - 245ch tuning
Tuning the 350 (3.7i) - 245ch 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 350 (3.7i) - 245ch, tuning delivers up to +35 hp and +36 Nm depending on the stage. Stock vs tuned figures:
| Stage | Power | Torque | Indicative price |
|---|---|---|---|
| Stage 1 | 245 → 250 hp | 344 → 349 Nm | — |
| Stage 2 | 245 → 280 hp | 344 → 380 Nm | — |
| E85 Flexfuel | 245 → 245 hp | 344 → 344 Nm | — |
| E85+ | 245 → 250 hp | 344 → 349 Nm | — |
Frequently asked questions
What gains can I expect from tuning the 350 (3.7i) - 245ch?
Tuning the 350 (3.7i) - 245ch (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 350 (3.7i) - 245ch?
Yes, the 350 (3.7i) - 245ch 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.