Citroen Grand C4 SpaceTourer 2018> 1.6 BlueHDi 118bhp remap figures
Thinking of remapping a Citroen Grand C4 SpaceTourer 1.6 BlueHDi 118bhp? The standard car makes 118bhp and 300Nm; with a Stage 1 remap from our Leicester workshop we expect around 147bhp and 351Nm, up to +29bhp and +51Nm.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 118 bhp | 147 bhp | +29 bhp |
| Torque | 300 Nm | 351 Nm | +51 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 118 bhp | 300 Nm | |
| Stage 1Maximum software-only performance | 147 bhp | 351 Nm | +29 bhp +51 Nm |
| Stage 1 EcoPerformance with economy in mind | 140 bhp | 347 Nm | +22 bhp +47 Nm |
| Eco mapEconomy first | 137 bhp | 344 Nm | +19 bhp +44 Nm |
Who is the Stage 1 map for?
- Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
- Daily and motorway drivers who want the engine to feel less strained at cruising speed.
- Anyone who wants the biggest software-only change we list for this engine.
What this means for your Grand C4 SpaceTourer
Diesel remaps work mainly on boost pressure, fuel delivery and torque limiters, which is why the Nm gain is usually the figure you feel in everyday driving, particularly when overtaking or towing.
Engine management is by a Bosch EDC17C60 unit. Newer ECUs often protect their software, so we read the exact unit and version on the car before confirming the figures on this page.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the Citroen Grand C4 SpaceTourer 1.6 BlueHDi 118bhp?
We expect 147bhp and 351Nm against 118bhp and 300Nm as standard: up to +29bhp and +51Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the Citroen Grand C4 SpaceTourer 1.6 BlueHDi 118bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 140bhp and 347Nm expected. The Eco map is economy first: 137bhp and 344Nm. Both still sit above the standard 118bhp and 300Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
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