Smart forfour remapping, coding and retrofits in Stoke‑on‑Trent

We hold 10 Smart forfour engines across 2 generations, 2004 to 2019. Pick yours below: the 1.5 Petrol 177hp has the biggest typical Stage 1 gain, 175bhp stock to around 210 to 220bhp.

VEXEN remaps, diagnoses and codes the Smart forfour at our unit in Fenton, Stoke-on-Trent. We hold 10 forfour engines across 2 generations, 2004 to 2019. Stage 1 is £249 and Stage 2 is £349. Pick your engine below, or message us with your reg for the exact figure.

Smart forfour

Choose your forfour

Generation

What we can do for your forfour

Smart forfour remapping

Typical Stage 1 figures for all 10 forfour engines, from 60bhp to 175bhp stock, with Stage 2 shown where the engine suits it.

forfour remap

Smart forfour DPF regeneration

2 of the forfour engines on file are diesel, each with a diesel particulate filter. A forced regeneration clears the soot from a blocked filter and keeps it in place.

forfour DPF regeneration

Smart forfour DPF delete

DPF delete for the 2 diesel forfour engines, from £249: no more blocked filter, regeneration cycles or DPF warning lights.

forfour DPF delete

Smart forfour EGR delete

EGR delete for the diesel forfour, from £249: no more clogged or sticking EGR valve and less soot in the intake.

forfour EGR delete

Smart forfour Apple CarPlay and Android Auto

W453 (2014 to 2019), W454 (2004 to 2006): built before Smart offered Apple CarPlay or Android Auto from the factory. We supply and fit both from £400.

forfour CarPlay

Smart forfour diagnostics and coding

Dealer-level diagnostics for the forfour: full module scanning, fault investigation, live data, adaptations, service resets and vehicle configuration. We find out why a warning light is on, not just clear it.

Diagnostics and coding

Smart forfour pops and bangs and limiter removal

Pops and bangs and limiter removal are added to the forfour remap software. Pops and bangs are £80 on top of the remap price; message us about limiter removal for your engine.

forfour remap

Other Smart models

Smart forfour FAQ

Smart forfour questions

10 engines across 2 generations, 2004 to 2019, 2 of them diesel. Pick yours on this page for the typical Stage 1 and Stage 2 gains.

Stage 1 is £249 and Stage 2 is £349. Pops and bangs are an extra £80, and Stage 1 with AdBlue or DPF/EGR work at the same time is £349.

At our unit: Unit 15 Fenpark Industrial Estate, Fenton, Stoke-on-Trent ST4 3JP. Open Mon to Fri 9am to 6pm and Saturday 10am to 5pm.

Still have a question? Message us with your reg and what you would like done.

07927 860502