Catalog/ Cars/ Citroën/ C1

Citroën C1 1.0i

Name: Citroën C1 1.0i chip tuning
Brand: Citroën
Price: 85.00 EUR
Availability: InStock

II Facelift (2008–2012) · 68 hp

Stage 1

E85

E85 + Stage 1

	Original	After tuning	Diff
Power hp	68	75	+7
Torque Nm	93	100	+7

Power gain

+10%

Torque gain

+8%

Ready to feel these +7 hp on the road?

Get your ready-to-flash Stage 1 file for the Citroën C1

Order tuning file →

Stage 1 file from €85

Exact price depends on the ECU — confirmed when you upload the file

✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included

Power graph / Stage 1

PowerTorqueStock

	Original	After E85	Diff
Power hp	68	70	+2
Torque Nm	93	95	+2

E85 adaptation (no Stage 1)

Just the fuel switch: the ECU is adapted to run Superéthanol E85 (up to 85% bio-ethanol) with no Stage 1 chip on top. You get a small power bump from ethanol's higher octane (~104 RON) and a much cheaper fill-up. Flex Fuel file: the car still runs on regular petrol whenever you want.

Save €456 a year at the pump

Get your E85 adaptation file for the Citroën C1

Order tuning file →

File from €100

✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included

Fuel cost — E85 vs petrol −45%

Petrol · 100 km

~~3.2 L~~ · €6.73

E85 · 100 km

4.1 L · €3.69

You save ≈ €3.04 every 100 km — about €456 a year (over 15 000 km)

E85 uses ≈ +28% more litres, but the pump price (€0.909/L vs €2.122/L, France average on October 29, 2026) more than makes up for it.

🇫🇷 Version française : conversion éthanol E85 de la Citroën C1, calculateur d'économies par département →

	Original	After E85 + Stage 1	Diff
Power hp	68	80	+12
Torque Nm	93	105	+12

E85 + Stage 1 remap

Chip tuning re-optimised for Superéthanol E85: the ignition and boost maps are calibrated to make full use of ethanol's higher octane (~104 RON). Bigger power and torque gains than either Stage 1 on petrol or E85 adaptation alone, plus the same cheap fill-up.

+12 hp and €456/year saved — both

Get your E85 + Stage 1 file for the Citroën C1

Order tuning file →

File from €100

✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included

Fuel cost — E85 vs petrol −45%

Petrol · 100 km

~~3.2 L~~ · €6.73

E85 · 100 km

4.1 L · €3.69

You save ≈ €3.04 every 100 km — about €456 a year (over 15 000 km)

E85 uses ≈ +28% more litres, but the pump price (€0.909/L vs €2.122/L, France average on October 29, 2026) more than makes up for it.

🇫🇷 Version française : conversion éthanol E85 de la Citroën C1, calculateur d'économies par département →

Original ECU files for Citroen C1 Stock (ORI) files of this model · €20 per file →