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ChiptuneMAP/Mercedes/CLS/350d - 252ch
Mercedes

350d - 252ch Tuning

Mercedes CLS: detailed power and torque gains by stage.

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Stage 1 for your CLS: garage prices

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Gains by stage(2)

Power

252 hp

Torque

620 Nm

Diesel
Power
252→300hp
+48 hp
+19%
Torque
620→700Nm
+80 Nm
+13%
OriginalTuned

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Tuners · ChiptuneFILE

Stage 1 file for the 350d - 252ch

Send the ECU read, get back an optimised and tested file.

  • Stage 1, Stage 2, E85
  • Checksum corrected, original file kept
  • For professionals only
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Everything about 350d - 252ch tuning

Tuning the 350d - 252ch found in the Mercedes CLS 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 CLS 350d - 252ch, tuning delivers up to +78 hp and +150 Nm depending on the stage. Stock vs tuned figures:

StagePowerTorqueIndicative price
Stage 1252 → 300 hp620 → 700 NmOn quote
Stage 2252 → 330 hp620 → 770 NmOn quote

Frequently asked questions

What gains can I expect from tuning the 350d - 252ch?
Tuning the 350d - 252ch (Mercedes CLS) 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 350d - 252ch?
Yes, the 350d - 252ch is known for its reliability when tuned, especially at Stage 1. It's essential to use a professional, experienced tuner with maps tailored to your engine.
How much does Mercedes CLS 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 CLS?
Use the ChiptuneMAP directory to find a tuner near you. Compare prices, services and specialties.

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