Alfa Romeo 166 JTD 2.4 Multijet (JTDm) 185 (+2003)
Remapping in Crawley
Alfa Romeo 166 JTD 2.4 Multijet (JTDm) 185 (+2003) in Crawley. Standard and remapped figures for this exact engine.

- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Remap stats
Alfa Romeo 166 JTD 2.4 Multijet (JTDm) 185 (+2003): standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+35 bhp · +19%- Standard185 bhp
- Remapped220 bhp
Torque
+80 Nm · +21%- Standard385 Nm
- Remapped465 Nm
Tuning figures are indicative estimates, not guaranteed results. Actual results depend on the condition of the vehicle.
Prices from £130
Fully dyno tested | 30 day money back guarantee | Lifetime software warranty
Owners of the Alfa Romeo 166 JTD 2.4 Multijet (JTDm) 185 (+2003) in Crawley can expect a stage 1 remap to take it from 185 to 220 bhp and from 385 to 465 Nm, an extra 35 bhp (19%) and 80 Nm (21%).
The figures above are estimates for a standard, well-maintained Alfa Romeo 166 diesel; they are not a guarantee of any particular result.
Alfa Romeo 166 JTD 2.4 Multijet (JTDm) 185 (+2003) power and torque after remapping
- Fuel: Diesel
- Standard power: 185 bhp, remapped: 220 bhp (+35 bhp, +19%)
- Standard torque: 385 Nm, remapped: 465 Nm (+80 Nm, +21%)
- Service: stage 1 ECU remap, fully dyno tested
What a remap does for a diesel Alfa Romeo 166
Diesel engines respond strongly to remapping because the ECU controls injection quantity, injection timing and turbo boost pressure. Re-calibrating those maps typically brings the biggest improvement in mid-range torque, which is what you feel when overtaking or towing.
For reference, JTD and Multijet are the Fiat Group names for its common-rail diesel engines.
How the Alfa Romeo 166 JTD 2.4 Multijet (JTDm) 185 (+2003) compares
Of the 7 diesel 166 engines in our data, this one comes 4th for power gain, which is 1 bhp below the 166 diesel average of 36 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 35 bhp and 80 Nm sits at or above that benchmark.
Remapping your Alfa Romeo 166 in Crawley
Based around Crawley, our team serves local drivers as part of the nationwide Remap Experts network. We regularly work with drivers in Sevenoaks, Tonbridge, Swanley, Sidcup and Ortington and nearby areas of the South East.
Each remap is dyno tested before it is signed off, and is protected by a 30 day money back guarantee and a lifetime software warranty. Ask for a quote online or by phone.
If you are closer to Sussex, Surrey and Croydon, those neighbouring Remap Experts sites can help too.

Want these figures on your Alfa Romeo 166 JTD 2.4 Multijet (JTDm) 185 (+2003)?
Send your details and a specialist will confirm what is possible for your engine.
Included
What we can do for your Alfa Romeo 166
Stage 1 ECU remap
Add power and torque and improve driveability. Software only, tailored to your engine.
ECU repair and testing
Is your engine control unit playing up? We can arrange testing and repair, and source replacement ECUs.
DPF and EGR fault repair
Persistent DPF or EGR errors diagnosed and resolved in accordance with all current road-legal standards.
Engine carbon cleaning
Fault finding and carbon cleaning for the inside of your engine, typically completed in a couple of hours.
From quote to remapped in four steps
No jargon and no pressure. Here is exactly what happens.
- 01
Find your vehicle
Choose your make, model and engine to see the standard and remapped power and torque for your car.
- 02
Request a quote
Send your details and we contact you by SMS or call back with a quote. No obligation.
- 03
Book with your local site
Your local Remap Experts site arranges the remap and answers any questions about your car.
- 04
Remapped and dyno tested
Your remap is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
Everything you need to know
Plain-English guides to how remapping works, what it does and what to check first.
- 6 min read
What is ECU remapping?
The engine control unit, what a remap changes, and who it suits.
Read guide - 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
Read guide - 6 min read
How ECU remapping works, step by step
From reading the original software to the dyno test.
Read guide