Citroen C1 1.4 HDI 55 hp — Stage 1 file (+25 hp)
hp
Stage 1 file for Citroen C1 1.4 HDI 55 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Citroen C1 1.4 HDI 55 hp ECU
Citroen C1 (2007) 1.4 HDI 55 hp — mass-market diesel engine of the passenger segment of the Stellantis group (Франция, 1919). Stage 1 chip tuning raises power from 55 to 80 hp (+25 hp, +45%) and torque from 130 to 170 Nm (+40 Nm). ECU — Siemens/Continental SID804. Flashing method: OBD or Bench depending on the unit's protection. Diesel engines built in 2007 — the era of classic Common Rail without strong encryption.
Citroen has a history of innovation, from hydropneumatic suspension to front-wheel drive. Citroen shares platforms and engines with Peugeot, Opel/Vauxhall and DS within Stellantis. Citroen is part of the Stellantis group (formerly PSA Peugeot Citroen). Low-output Citroen diesels are city units, and Stage 1 is safe.
ECUs are standardised across Stellantis, so Citroen files often work on Peugeot/Opel/DS. The Citroen community in France and Western Europe has a large pool of Stage files. On naturally aspirated Citroen engines, the main effect is on throttle response. Low-output Citroen engines are city units, and Stage 1 is safe.
Frequently asked questions
How much does the power of the Citroen C1 1.4 HDI 55 hp increase after Stage 1?
Stage 1 chip tuning on the Citroen C1 1.4 HDI 55 hp boosts engine output by 25 hp: from 55 to 80 hp. Torque rises from 130 to 170 Nm (+40 Nm).
What changes in the Citroen C1 ECU after Stage 1?
Stage 1 is a software optimization of the factory ECU firmware of the Citroen C1 with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed. The gain is +25 hp with no hardware changes.
Is Stage 1 worth doing on the base Citroen C1?
Yes, Stage 1 on the low-output Citroen C1 1.4 HDI 55 hp delivers a moderate but genuine gain — without overstressing the hardware. On base naturally aspirated engines the effect is felt mainly as improved throttle response and a stronger mid-range.
What is Stage 2 for the Citroen C1 1.4 HDI 55 hp?
Stage 2 for the Citroen C1 1.4 HDI 55 hp is Stage 1 plus hardware changes: a downpipe, a larger intake and a performance intercooler. The gain is considerably higher, but it requires professional component selection.
What ECU platform does the Citroen C1 1.4 HDI 55 hp use?
The Citroen C1 1.4 HDI 55 hp is fitted with the Siemens/Continental SID804 ECU. The read method depends on the unit's protection: OBD, Bench via BDM, or Boot mode.
Does the factory warranty of the Citroen C1 remain valid after Stage 1?
After remapping the Citroen C1, the official factory warranty on the engine and gearbox is lost (this applies to any manufacturer when the ECU is modified). CHIPOK guarantees the quality of the calibration and free revisions.
How long is the wait for a Stage 1 remap for the Citroen C1?
Reading and writing via OBD takes 25-30 minutes on the Citroen C1. Bench reading (BDM/JTAG) takes about 60 minutes plus refitting. Remote file processing at CHIPOK takes 5-30 minutes.
How do you roll back to the factory firmware of the Citroen C1?
Before Stage 1 the original of the Citroen C1 1.4 HDI 55 hp is read out and saved — returning to the factory state is possible at any time.
How much does chip tuning the Citroen C1 1.4 HDI 55 hp cost?
The remap price for the Citroen C1 1.4 HDI 55 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.