Smart Key Replacement Leeds
Smart key replacement in Leeds, for the smart car brand, is the cutting and programming of a new key for your smart fortwo or forfour, carried out where the car is parked. Ian codes ID46 and Hitag AES smart car keys on the street, in a car park or at work, so a fortwo, forfour or EQ fortwo never needs a recovery lorry to a dealer.
The smart brand has used three different parent platforms, from its own early design to Mercedes-Benz and then the Renault Twingo, so the right key depends on the generation. A replacement key costs from £85 with one working key present, and from £145 when every key is lost.
From £85, no VAT, 24/7 across every LS postcode.
How Smart Car Key Systems Work by Generation
A smart car key has two parts that must both match the car. The blade opens the locks and the transponder chip in the head is registered to the immobiliser. This page covers keys for the smart car brand. Keyless proximity keys on other makes, often also called smart keys, are covered on our smart key programming page.
The first fortwo, the 450 from 1998 to 2007, and the roadster use an early transponder key, with the remote as a separate part on some cars. The forfour of 2004 to 2006 was built alongside the Mitsubishi Colt and uses a Mitsubishi style ID46 key. Chip keys like these are handled by our transponder key programming service, usually in well under an hour.
The fortwo 451, 2007 to 2014, uses a Philips ID46 remote key registered to the car through its control module. It is the most common older smart in Leeds, and when every 451 key is lost the new key is coded after the module data is read, which is why that job is priced before we travel.
The fortwo and forfour 453, 2014 to 2024, share their platform with the Renault key replacement range through the Twingo. They use a Hitag AES flip key with a VA2 blade, cut to code at the vehicle through our car key cutting service. The electric EQ fortwo and EQ forfour use the same key. The newest smart #1 and #3 use a keyless fob on a different platform, and those are checked from the registration first.
Early transponder keys and the Mitsubishi based forfour. Cut to code and coded at the car. From £85.
Philips ID46 remote key coded through the control module. The most common older smart in Leeds.
Renault Twingo platform. Hitag AES flip key with a VA2 blade. EQ electric models use the same key.
Keyless fob on a new platform. The registration is checked first and you are told on the phone if a dealer is the only route.
Smart Models Covered in Leeds
The smart models below cover every key type sold in the UK. The generation and chip are confirmed from the registration before Ian sets off, so the correct smart key blank is already on the van when he arrives.
Model not listed? Call 07724 214298 with the registration. Every Smart sold in the UK is checked before we travel.
Smart Auto Locksmith Services in Leeds
Every Smart key and lock service below is carried out at the vehicle across every Leeds LS postcode. No towing, no garage visit and no VAT.
Every key lost. Old keys deleted, a new key cut from the vehicle data and coded on site.
Replacement remote or flip key cut and coded at the vehicle.
Keys locked inside the car. Non-destructive entry, day or night.
New or existing keys coded to the immobiliser through the diagnostic socket.
A second key cut and coded while one working key is still present.
Key not recognised or engine will not start. Fault read and fixed at the vehicle.
Worn buttons, cracked 451 cases and circuit boards repaired or the remote replaced.
Snapped blade removed from the lock or ignition without damaging the barrel.
Key stuck or ignition barrel not turning. Diagnosed and repaired on site.
Smart Car Key Prices in Leeds
A smart car key in Leeds costs from £85 with one working key present and from £145 when every key is lost. Each price includes cutting, programming and testing at the vehicle, and no VAT is added. The full breakdown by job type sits in our car key replacement cost guide for Leeds.
Main dealers typically quote from around £160 plus VAT for a programmed key, which is a large share of what an older fortwo is worth. The dealer route also means booking the car in, waiting for the key to arrive, and a recovery lorry when no working key is left. Cracked fortwo 451 key cases are often repaired rather than replaced.
Call 07724 214298 for a fixed quote before we travel.
The price is confirmed on the phone before dispatch. No VAT on any Leeds job.
Tools Used for Smart Key Programming
Three tools cover every smart car key, from ID46 remote keys to Hitag AES flip keys. All three travel on the van, so a smart key job starts and finishes at the vehicle.
Codes ID46 and Hitag AES keys for the smart fortwo and forfour through the diagnostic socket, including the EQ electric models and the 453 flip key.
Reads the fortwo 451 control module data when every key is lost, and handles immobiliser faults where the diagnostic socket route is blocked.
Cuts the VA2 blade and older smart blades to code from the vehicle data. This is how a new key is made when every original key is lost and there is nothing to copy.
How a Smart Key Is Replaced On Site
Two situations cover almost every smart car key call in Leeds. The steps differ, because a spare key is added next to a working key, while an all keys lost job builds a smart key from nothing.

One working flip key and no spare. A spare smart key costs far less now than an all keys lost job once the last key fails or goes missing.
The new Hitag AES flip key is registered alongside the existing key through the diagnostic socket, and the VA2 blade is cut on the Condor.
Two working keys, with remote locking and engine start tested at the vehicle. From £85, no VAT.

No key for a fortwo 451 parked on a city street. The immobiliser still accepts the lost key, so anyone who finds it could drive the car away.
The fortwo is opened without damage. The control module data is read, the blade is cut to code, the lost key is deleted and the new ID46 remote key is coded.
One working key and the lost key disabled. From £145, with module work from £250 where it is needed, confirmed on the phone before travel. No VAT.
Smart Car Callouts Across Every Leeds Postcode
Ian works from Cross Gates in LS15, so the whole city is covered in about 30 minutes. The fortwo is a city car, so most calls come from on street parking, student areas and city centre car parks, where a small car is easy to park and easy to lock the keys inside.
Every LS postcode is covered at the same price, day and night, with no call-out fee on top of the quoted smart key price.
VIEW ALL LEEDS AREAS →Smart Key Replacement Leeds Questions
More answers sit on our full FAQ page. Or call for a fixed price in 60 seconds.
Send the registration and the price is fixed before we travel. No VAT.
Other Vehicle Makes We Cover in Leeds
We cover 34 vehicle makes across all Leeds areas, including the brands behind every smart generation and other city cars.
Need a Smart Key in Leeds?
fortwo, forfour and EQ keys cut and coded at your vehicle, with the #1 and #3 checked before we travel. From £85.
Fixed price in 60 seconds. No VAT. No call-out fee.