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 · FBS3 · FBS4 · IR-key · NEC v51/57 ///
Mercedes-Benz Lost Key London. From £420.
Mobile Mercedes-Benz lost key replacement across Central, West, North-West & South-West London — fixed price, 40-60% less than London dealer, 12-month warranty, same-day where stock permits.
30-min response
West London
Fully insured
Public & PI
Non-destructive
Industry standard
Dealer-level kit
AutoTuner · Autel
Fixed quotes
Before we attend
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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 runs a dedicated mobile Mercedes-Benz key service across every London postcode — Central, West, North-West, South-West, the City and Canary Wharf. London Mercedes-Benz dealers typically charge £400-£950 for the same job; our engineers will do your Mercedes-Benz lost key replacement on your driveway, at your office, in a hotel car park or kerbside in any London postcode from £420. Every Mercedes-Benz chassis covered with current online access for FBS3 · FBS4 · IR-key · NEC v51/57, plus OEM-spec blanks for every model in the Mercedes-Benz range. All-keys-lost recovery with VIN authorisation is what we do all day, every day — fixed price before we attend, 12-month warranty, fully insured, 36 verified 5-star Google reviews.
- Central London — Mayfair, Kensington, Notting Hill, Chelsea, Marylebone
- West London — Chiswick, Acton, Hammersmith, Ealing, Shepherd's Bush
- North-West London — Wembley, Harrow, Edgware, Hampstead, Kilburn
- The City, Canary Wharf & South Bank by arrangement
- FBS3 · FBS4 · IR-key · NEC v51/57
- Mercedes-Benz lost key replacement from £420 fixed — all-in, no surprises
- Same-day appointments where stock permits
- All-keys-lost handled on site with VIN authorisation
- 12-month parts & labour warranty · fully insured
- Payment Assist on jobs over £250 (0% APR available)
24/7 Emergency
Mobile Service
Same-Day
12-Month Warranty
Payment Assist
Fully Insured
Areas covered: London · Central · West · North-West · South-West · The City · Canary Wharf
Need it now? Jump straight to the service.
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 Mercedes-Benz lost key replacement in London?+
Mercedes-Benz lost key replacement in London starts from £420. Final price depends on exact model, year and key system (FBS3 · FBS4 · IR-key · NEC v51/57). Fixed quote before any work — typically 40-60% less than a London Mercedes-Benz main dealer.
Which London postcodes do you cover for Mercedes-Benz?+
All London postcodes — Central (W1, SW1, EC, WC), West (W3, W4, W5, W6, W12, W14), North-West (NW1, NW3, NW6, NW10, HA), South-West (SW6, SW11, SW18) and East (E1, E14) by arrangement. Most jobs reached within 30-60 minutes during the day.
Which Mercedes-Benz models are supported?+
A, B, C, E, S, CLA, GLA, GLC, GLE, V-Class, Sprinter, Vito. FBS3 · FBS4 · IR-key · NEC v51/57 fully covered with dealer-equivalent online access.
How long does Mercedes-Benz lost key replacement take on site in London?+
Most Mercedes-Benz lost key replacement jobs are completed in 60-120 minutes at your London location — driveway, workplace, supermarket car park, hotel or roadside. Security-gated and all-keys-lost jobs may take longer; we tell you up front before booking.
Will Mercedes-Benz lost key replacement in London affect my warranty?+
No. Adding or replacing a key follows the same security path the Mercedes-Benz dealer uses — no modules altered, no DTCs left. Manufacturer warranty for unrelated components is unaffected.
Is the work guaranteed?+
Yes — 12-month parts and labour warranty, fully insured, dealer-grade equipment, 36 verified 5-star Google reviews. Payment Assist available on jobs over £250 (0% APR, subject to status).
Do you cover central London congestion-zone jobs?+
Yes — we cover the entire Congestion Charge and ULEZ zones; the standard fee already includes any zone charges so the price you're quoted is the price you pay.
★ 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.