Smart Auto Locksmith — South Yorkshire

Smart Auto Locksmith
Barnsley, Sheffield & Doncaster
South Yorkshire

Lost your Smart keys? Locked in? Need a spare? Aaron Hoburn at AH Auto Keys programmes Smart keys on site across South Yorkshire — Smart Fortwo 450, 451, 453, Smart #1 EV and Smart #3 EV. No VAT. No call-out fee. 24/7.

Three completely different platforms across the Smart range. 450/451: Mercedes EIS (Smart Pro — same as W203/W204 C-Class). 453: Renault UCH (Autel IM508 — same as Clio IV). Smart #1/#3 EV: Geely SEA platform (Autel IM508). Aaron identifies your generation from your registration and brings the correct equipment.

Call 07513664346 WhatsApp Aaron

25–40 min response No VATNo call-out fee24/7Three platforms — Smart Pro, UCH & EV

Smart Locksmith — Quick Facts

Models

Fortwo 450 (1998–2007), Fortwo/Forfour 451 (2007–2014), Fortwo/Forfour 453 (2014–2019), Smart #1 EV (2022+), Smart #3 EV (2023+)

Key blade

YM15 (450/451 Mercedes EIS) / current profile (453 Renault UCH / #1/#3 Geely)

Transponder

NEC/Mercedes (450/451) / PCF7936 ID46 (453 Renault UCH) / Geely BCM (#1/#3)

Equipment

Advanced Diagnostics Smart Pro (450/451), Autel IM508 (453/#1/#3)

Lost key from

£200 — no VAT, no call-out fee

Spare key from

£120 — same visit

Available

24/7 · 365 days · Bank holidays

Phone

07513664346 — Aaron answers directly

Available now — 24/7

Price confirmed before Aaron sets off. Aaron identifies your Smart generation from your registration and confirms equipment before setting off.

07513664346

Smart Key Replacement South Yorkshire

Mobile Smart Auto Locksmith
Fortwo, Forfour & Smart #1 — Mercedes EIS, Renault UCH & Geely EV

Smart cars span three completely different technical platforms across the model range — each requiring different equipment. Fortwo 450 and 451: Mercedes EIS (Electronic Ignition Switch) module, programmed via Advanced Diagnostics Smart Pro — the same tool Aaron uses for Mercedes W203/W204 C-Class. Fortwo/Forfour 453: Renault-sourced UCH module (identical to Renault Clio IV), programmed via Autel IM508. Smart #1 and #3 EV: Geely SEA platform, programmed via Autel IM508.

Smart is one of the most technically varied brands in Aaron’s 34-make portfolio — the only brand where three completely different tool setups are needed. Aaron identifies your exact generation from your registration number before setting off and brings the correct equipment. A Smart 451 callout needs the Smart Pro. A 453 callout needs the Autel IM508 UCH. A #1 EV callout needs the Autel IM508 Geely sequence.

Smart services — all on site

Lost Smart keys (all keys lost) — from From £200

Smart key replacement — from From £120

Spare Smart keys — from From £120

Smart vehicle lockout — from £80

Smart key fob replacement — from £150

Broken Smart key extraction — from £80

Smart key programming — Smart Pro (450/451) or Autel IM508 (453 / #1 / #3)

No VAT on any Smart job. No call-out fee. Smart 450/451 = Smart Pro (Mercedes EIS). Smart 453 = Autel IM508 (Renault UCH). Smart #1/#3 = Autel IM508 (Geely). Aaron confirms from your registration.

Smart Customer Reviews

Customer Reviews on Google

Real Smart customers across South Yorkshire. Every review verified on Google.

★★★★★

Lisa B. · Barnsley · Google Review

“Fortwo 451 keys lost in Barnsley. Aaron confirmed Mercedes EIS and came out with Smart Pro. Coded on site. No VAT.”

Smart Fortwo 451 — Mercedes EIS all keys lost

★★★★★

David H. · Sheffield · Google Review

“Smart 453 Fortwo key fob fault in Sheffield. Aaron identified Renault UCH and re-paired via IM508. 25 minutes. No VAT.”

Smart Fortwo 453 — UCH re-pair

★★★★★

Karen T. · Doncaster · Google Review

“Smart #1 EV spare key in Doncaster. Aaron came out, Geely BCM coded on site. No VAT.”

Smart #1 EV — spare key

      EXCELLENT  
   Based on 143 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Jacob Worthington 
 
 
 
 Trustindex verifies that the original source of the review is Google. Exceptional service, prompt, helpful advice too.
  
 
      Posted on Google  
   
   Adam Webb 
 
 
 
 Trustindex verifies that the original source of the review is Google. AH  provided us a new key for our range Rover today, great service and great price will be using again
  
 
      Posted on Google  
   
   Patricia Russell 
 
 
 
 Trustindex verifies that the original source of the review is Google. A fabulous service! Quick response, friendly, knowledgeable and really reasonably priced. I wouldn’t hesitate to use them again and would highly recommend them to anyone. ⭐️⭐️⭐️⭐️⭐️
  
 
      Posted on Google  
   
   J Ed 
 
 
 
 Trustindex verifies that the original source of the review is Google. Arrived within 20 minutes and sorted the issue. Great service much appreciated!
  
 
      Posted on Google  
   
   Hannah Dawson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very grateful for AH Autokeys work. He did a fantastic job for me.

I locked my car and house keys in my car boot at gone 11pm at night when I was out alone, I had 6% phone battery, called the first person I found on Google, only to find out he wasn’t local. Despite this though, he still agreed to drive out 50mins to help.

The car was unlocked door in no time but the boot wasn’t accessible from the inside and the car was too old to be opened electronically.

He spent a long time trying to unlock the car boot. After a while, I was worried he might give up and say it can’t be done. He persevered though and finally managed to retrieve my keys.

If I’d called somebody else, maybe they’d have given up on it so I’m really grateful that he stuck with it for me!

I hope I never have to use the service again, but if I find myself in this boat in the future, this will be the first place I call. I can’t recommend enough.

Thank you!
  
 
      Posted on Google  
   
   Jill Hargadon 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service from beginning to end. I cannot recommend Aaron enough. He is professional, but friendly, reliable and efficient.
Will definitely use again.
  
 
      Posted on Google  
   
   Alif Hossain 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing service got it done in no time. Definitely recommend.
  
 
      Posted on Google  
   
   Lee Bosah 
 
 
 
 Trustindex verifies that the original source of the review is Google. Fast response, Great customer service A* job 👍🏽
  
 
      Posted on Google  
   
   luke lowe 
 
 
 
 Trustindex verifies that the original source of the review is Google. Just had Aaron come to unlock my polo, as I left they keys on the seat and the car had locked.  had it open within 5 minutes of coming also came to quickly to my house in swinton, top service would definitely use again if I needed it

Read all 140+ reviews ›

Smart Locksmith Services

Every Smart Service — On Site Across South Yorkshire

No workshop visit needed. Aaron brings the equipment to your driveway, car park, roadside or workplace.

From £200

Lost Smart Keys

All keys gone — EIS (Smart Pro 450/451) or UCH (IM508 453) or Geely BCM (IM508 #1/#3). YM15 or current profile cut on site.

Full details ›

From £120

Smart Key Replacement

Worn or damaged Smart key replaced. Correct module coded on site for your generation.

Full details ›

From £120

Spare Smart Keys

From £120. Smart spare key same visit.

Full details ›

From £80

Smart Lockout

Keys locked inside? Non-destructive long-reach entry — no smashed windows, no scratched paintwork.

Full details ›

From £100

Smart Fob Replacement

Smart Fortwo or Forfour key fob not working? Battery, EIS/UCH desync or replacement on site from £120.

Full details ›

From £80

Broken Key Extraction

YM15/current blade snapped in door or ignition — safe extraction without barrel damage.

Full details ›

From £100

Smart Key Programming

Smart Pro for EIS (450/451). Autel IM508 for UCH (453) and Geely BCM (#1/#3). All Smart generations.

Full details ›

Smart Key System Guide — Three Platforms

Smart Generations — Mercedes EIS, Renault UCH & Geely EV

Smart is unique in requiring three different tool setups. 450/451: Mercedes EIS — Smart Pro. 453: Renault UCH — Autel IM508. #1/#3 EV: Geely SEA — Autel IM508. Aaron confirms your generation from your registration.

Smart Model	Platform	Module	Notes
Fortwo 450 (1998–2007)	Mercedes A-Class derived	Mercedes EIS v1	YM15. NEC transponder. Smart Pro.
Fortwo 451 / Forfour 454 (2007–2014)	Mercedes platform evolved	Mercedes EIS v2	YM15. NEC. Smart Pro. Like W204 C-Class.
Fortwo / Forfour 453 / W453 (2014–2019)	Renault Twingo III platform	Renault UCH	Current profile. PCF7936 ID46. Autel IM508.
Smart #1 EV (2022+)	Geely SEA electric platform	Geely BCM	Full EV. Autel IM508 OBD.
Smart #3 EV (2023+)	Geely SEA electric platform	Geely BCM	Coupe EV. Same as #1. IM508.

Why three platforms matter: A Smart 451 needs the Smart Pro (Mercedes EIS). A Smart 453 needs Autel IM508 with Renault UCH access. A Smart #1 needs Autel IM508 with Geely BCM sequence. These are not interchangeable — most locksmiths carry only one. Aaron carries all three and identifies your generation from your registration before setting off.

Common Smart Key Problems

Smart Key Faults Aaron Fixes On Site

The most frequent Smart key faults Aaron attends across South Yorkshire. Call 07513664346 — Aaron confirms whether he can resolve your fault before setting off.

Smart Fortwo 451 all keys lost

Fortwo 451 uses YM15 blade with Mercedes EIS v2. Aaron programmes via Smart Pro OBD — same tool as Mercedes W204 C-Class. Confirms from your reg before travelling.

Smart Fortwo 450 key fob not working

Oldest Fortwo 450 uses YM15 with Mercedes EIS v1. EIS re-sync via Smart Pro on site after a new fob battery. Full key replacement if fob is damaged.

Smart Fortwo/Forfour 453 all keys lost

453 uses current profile with Renault UCH and PCF7936 ID46. Aaron programmes via Autel IM508 UCH OBD — same as Renault Clio IV. Confirms 453 from your reg.

Smart 453 Forfour key fob not working

Forfour W453 uses Renault UCH like the Renault Twingo III. Fob faults are flat battery or UCH desync. Aaron diagnoses from £100 via Autel IM508 on site.

Smart #1 EV key not working

Smart #1 uses Geely SEA platform. Aaron programmes via Autel IM508 Geely BCM sequence on site. EV drivetrain adds no complexity.

Smart #3 EV all keys lost

Smart #3 coupe uses the same Geely SEA platform as Smart #1. Aaron programmes via Autel IM508 OBD on site.

Smart Models Covered

Smart Models & Key Systems — Complete Reference

Smart spans three platforms: Mercedes EIS (450/451, YM15 blade), Renault UCH (453) and Geely BCM (#1/#3 EV). Aaron identifies from your registration and brings the correct tool.

Smart Model	Key Blade	Transponder & Notes
Fortwo 450 (1998–2007)	YM15	Mercedes EIS v1. NEC. Smart Pro.
Fortwo 451 / Forfour 454 (2007–2014)	YM15	Mercedes EIS v2. Smart Pro.
Fortwo/Forfour 453 (2014–2019)	Current profile	Renault UCH. PCF7936. IM508.
Smart #1 EV (2022+)	Current profile	Geely BCM. Full EV. IM508.
Smart #3 EV (2023+)	Current profile	Geely BCM. Coupe EV. IM508.

Exact key type depends on model year and trim. Aaron confirms for your specific registration before travelling.

Price Comparison

Aaron vs Smart Dealer —
Smart Key Prices

All prices include parts, programming and testing. No VAT. No call-out fee. Exact price confirmed before Aaron travels.

Smart Service	Aaron (No VAT)	Main Dealer
Lost Smart key — 450/451 Mercedes EIS	From £200	£220–£400 + VAT
Lost Smart key — 453 Renault UCH	From £200	£200–£380 + VAT
Lost Smart #1 / #3 EV key	From £170	£250–£450 + VAT
Smart key replacement	From £120	£130–£280 + VAT
Spare Smart key	From £120	£120–£260 + VAT
Smart EIS/UCH re-pair	From £80	OBD re-sync on site
Smart key fob replacement	From £150	Full key only
Smart lockout	From £80	N/A — workshop only

Dealer prices indicative. Aaron’s price is fixed and confirmed before starting.

Smart Coverage Areas

Smart Callout Areas — South Yorkshire

Smart Fortwo is the most common callout. Smart #1 EV adoption is growing across South Yorkshire, particularly in Sheffield. Aaron covers all Smart generations.

Barnsley

Fortwo & Smart #1 — highest Smart volume

›

Sheffield

Smart #1 EV & Fortwo 453 — residential

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Doncaster

Fortwo & Smart #3 — residential

›

Rotherham

Fortwo 453 — residential

›

Wombwell & Hoyland

Fortwo — compact car M1 corridor

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Wakefield

Smart #1 & Fortwo — residential

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View full coverage map ›

Why Choose Aaron for Smart

Why South Yorkshire Smart Drivers Choose Aaron

All three Smart platforms covered. Smart Pro for Mercedes EIS (450/451). Autel IM508 for Renault UCH (453). Autel IM508 for Geely BCM (#1/#3). Most locksmiths carry only one setup.

Generation identified from registration. Aaron confirms your Smart generation and brings the correct equipment before setting off.

Smart #1 and #3 EV covered. Geely SEA platform, Autel IM508 OBD on site.

No VAT. Around 20% cheaper than a VAT-registered dealer on every Smart job.

No call-out fee. You pay for the job, not for Aaron turning up.

One person, every job. Aaron handles everything personally. No call centre, no subcontractors.

£5M insured, 140+ reviews. Publicly verifiable insurance and Google reviews.

Other Makes Covered

All 34 Makes Covered — Same Service

Aaron covers 34 vehicle makes across South Yorkshire. Same no-VAT pricing and on-site service for every brand.

Ford Vauxhall BMW Audi Mercedes VW Kia Renault Land Rover Hyundai Honda All 34 Makes ›

FAQs

Smart Auto Locksmith — Frequently Asked Questions

Lost Smart key from £200 (450/451 EIS or 453 UCH or Smart #1/#3 EV). Spare from £120. No VAT. No call-out fee.

Yes — Fortwo 450 and 451 use the Mercedes EIS (Electronic Ignition Switch) module — same as W203/W204 C-Class. Aaron programmes via Advanced Diagnostics Smart Pro.

The 453 shares the Renault Twingo III platform and uses the Renault UCH module — identical to the Renault Clio IV UCH. Aaron programmes via Autel IM508 UCH OBD.

Yes — Smart #1 and #3 use the Geely SEA electric platform. Aaron programmes via Autel IM508 Geely BCM OBD on site. EV drivetrain adds no complexity.

Aaron identifies your Smart generation from your registration number before setting off — 450/451 = Smart Pro, 453 = Autel IM508 UCH, #1/#3 = Autel IM508 Geely.

Yes. No VAT is a 20% saving. Lost Smart Fortwo from £150 vs dealer £200–£400 plus VAT.

Before You Call
Quick Answers

How much does a Smart locksmith cost?
From £150 (450/451/453) or £170 (#1/#3 EV). No VAT. No call-out fee.
450/451 = Mercedes EIS?
Yes — YM15 blade, NEC transponder, Smart Pro. Same tool as W203/W204 C-Class.
453 = Renault UCH?
Yes — Renault Twingo III platform. Autel IM508 UCH. Same as Renault Clio IV.
Smart #1 EV covered?
Yes — Geely SEA platform, Autel IM508 Geely BCM. EV adds no complexity.

Available Now — 24/7

Need a Smart Locksmith
in South Yorkshire?

Call Aaron now — he'll identify your Smart generation, bring the correct equipment, quote a firm price and give an arrival time. No VAT. No call-out fee. All Smart models. 24/7.

Call Now — 07513664346 WhatsApp Aaron Contact Form

No VATNo Call-Out Fee24/7£5M InsuredSmart Pro EIS (451)#1 & #3 EV Covered

Smart Auto LocksmithBarnsley, Sheffield & DoncasterSouth Yorkshire

Mobile Smart Auto LocksmithFortwo, Forfour & Smart #1 — Mercedes EIS, Renault UCH & Geely EV

Customer Reviews on Google

Every Smart Service — On Site Across South Yorkshire

Smart Generations — Mercedes EIS, Renault UCH & Geely EV

Smart Key Faults Aaron Fixes On Site

Smart Models & Key Systems — Complete Reference

Aaron vs Smart Dealer —Smart Key Prices

Smart Callout Areas — South Yorkshire

Why South Yorkshire Smart Drivers Choose Aaron

All 34 Makes Covered — Same Service

Smart Auto Locksmith — Frequently Asked Questions

How much does it cost to replace a lost Smart car key in South Yorkshire?

Does older Smart Fortwo use the same system as Mercedes?

What system does Smart Fortwo 453 use?

Do you cover Smart #1 and Smart #3 EV?

How does Aaron know which equipment to bring?

Are you cheaper than a Smart dealer?

Quick Answers

Need a Smart Locksmithin South Yorkshire?

Smart Auto Locksmith
Barnsley, Sheffield & Doncaster
South Yorkshire

Mobile Smart Auto Locksmith
Fortwo, Forfour & Smart #1 — Mercedes EIS, Renault UCH & Geely EV

Aaron vs Smart Dealer —
Smart Key Prices

Need a Smart Locksmith
in South Yorkshire?