Vauxhall Astra (J) 2012-2016 2.0 CDTi 162bhp remap figures
Stock, this 2012-2016 Vauxhall Astra diesel (2.0L) produces 162bhp and 350Nm. Our expected figures for a Stage 1 remap are 204bhp and 435Nm, an expected gain of up to 42bhp and 85Nm.
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 | 162 bhp | 204 bhp | +42 bhp |
| Torque | 350 Nm | 435 Nm | +85 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 162 bhp | 350 Nm | |
| Stage 1Maximum software-only performance | 204 bhp | 435 Nm | +42 bhp +85 Nm |
| Stage 1 EcoPerformance with economy in mind | 194 bhp | 428 Nm | +32 bhp +78 Nm |
| Eco mapEconomy first | 190 bhp | 424 Nm | +28 bhp +74 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 Astra
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 EDC17C59 unit. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
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 Vauxhall Astra 2.0 CDTi 162bhp?
We expect 204bhp and 435Nm against 162bhp and 350Nm as standard: up to +42bhp and +85Nm. 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 Vauxhall Astra 2.0 CDTi 162bhp?
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: 194bhp and 428Nm expected. The Eco map is economy first: 190bhp and 424Nm. Both still sit above the standard 162bhp and 350Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Vauxhall Astra figures
Other diesel variants
- 2.0 CDTi 157bhp 2009-2011
- 1.6 CDTi 134bhp 2014>
- 2.0 CDTi 192bhp 2012-2016
- 1.7 CDTi 128bhp 2009-2016
- 1.7 CDTi 123bhp 2009-2016
- 1.6 CDTi 108bhp 2014>
- 1.7 CDTi 108bhp 2009-2016
- 1.3 CDTi 93bhp 2009-2016
All diesel Astra (J) variants · Astra (J) 2009-2016 overview · All Vauxhall figures