Locked out at 11pm near Heathrow. They were with me in 25 minutes, no damage, cheaper than the dealer quoted. Genuine lifesavers.
James M.
Hounslow · Emergency Unlock
London-wide · Pre-2015 FBS3 · IR · Smart Key · Sprinter ///
Mercedes Key Replacement London. From £240.
Mobile pre-2015 FBS3 Mercedes key replacement across Central, West, North-West London and the City. Post-2014 FBS4 is dealer-only.
30-min response
West London
Fully insured
Public & PI
Non-destructive
Industry standard
Dealer-level kit
AutoTuner · Autel
Fixed quotes
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Fixed price confirmed before we attend · No-damage entry · Dealer-grade key programming
No spam · No obligation · Fixed pricing confirmed before we attend
Professional. Mobile. Trusted.
StageMyCar covers every London postcode for pre-2015 FBS3 Mercedes key replacement — IR keys on older W203, W211, W164 and W639 Vito (£240-£320), and early smart keys on W204, W212 and W221 before the FBS4 switch (£320-£480). Post-2014 FBS4 platforms (most W205, W213, W222, W447, W167, EQ EV and current AMG) are dealer-only — we don't take those jobs. Dealer pricing in London routinely exceeds £600-£950. We attend driveways in Hampstead, underground bays in Mayfair, City of London office car parks, Canary Wharf reserved bays, and every postcode from W1 to NW10. Engineers carry dealer-grade FBS3 hardware and OEM-spec blanks for the pre-2015 generation.
- Central London — Mayfair, Kensington, Chelsea
- West London — Chiswick, Acton, Hammersmith
- North-West London — Wembley, Harrow, Hampstead
- The City & Canary Wharf by arrangement
- Pre-2015 FBS3 IR keys (W211 / W164 / W203 / W639 Vito) — £240+
- Early FBS3 smart keys (W204 / W212 / W221 pre-FBS4)
- W906 Sprinter & W639 Vito commercial keys
- Post-2014 FBS4 dealer-only — we don't quote
- All-keys-lost on site, dealer-grade hardware
- 12-month warranty · fully insured
Payment Assist · Official Partner
Spread the Cost with Payment Assist
On selected services over £250, you can split the total into 3 or 4 monthly payments with 0% APR available. A small deposit is paid on the day, then the remaining balance is collected in equal monthly instalments. No long forms, no waiting — applied on site before work begins.
- 0% APR available on selected services
- 3 or 4 equal monthly payments
- Deposit paid on the day
- Soft credit check — no impact at quote stage
- Decision in minutes, on site
- Available on jobs over £250
Finance subject to status and approval and provided by Payment Assist Ltd, authorised and regulated by the Financial Conduct Authority. 0% APR available on selected services. Terms, eligibility and final monthly figure confirmed at application. StageMyCar UK is an introducer appointed representative — we do not charge a fee for this service.
Example · Illustrative
£480 ECU Remap · 0% APR
3 payments
£120/mo
£120 deposit
4 payments
£96/mo
£96 deposit
Authorised & regulated by the FCA
Decision in minutes — apply on site
Subject to status & approval
Indicative example only. Final terms confirmed at application.
Frequently Asked Questions
How much is a Mercedes key replacement in London?+
From £240 (older IR key — W203, W211, W164, Vito). Pre-2015 FBS3 smart keys (early W204, W212, W221) from £320-£480. Typically 50-60% less than a London Mercedes dealer.
Which Mercedes models do you cover?+
Every pre-2015 FBS3 model from W203 C-class through W221 S-class, plus AMG, Sprinter, Vito and V-Class commercial built before 2015. Post-2014 FBS4 (EQ EV, current models) is dealer-only.
Where in London?+
Central, West, North-West and East London — including Mayfair, Kensington, Chelsea, Notting Hill, Chiswick, Acton, Wembley, Harrow, the City and Canary Wharf.
Can you handle pre-2015 FBS3 Mercedes on site?+
Yes — handled on site with dealer-grade hardware. Typically 120-180 mins. Saves the £700-£950 dealer alternative.
Will it affect my warranty?+
No — adding or replacing a key uses the same security path Mercedes dealers use. No DTCs, no modules altered.
Guarantee?+
12-month parts and labour, fully insured, 36 verified 5-star Google reviews.
★ 5.0 / 5 · 36 Google reviews
Trusted by drivers across West London
StageMyCar UK is a mobile auto locksmith and ECU specialist serving West London, the M4 corridor, Heathrow, Slough, Reading and surrounding areas. Fixed-price quotes, DBS-checked engineers, fully insured, 7 days a week. Call 07312 826380 for an instant quote.