Mercedes-Benz Auto Locksmith Essex
Mercedes-Benz Auto Locksmith Essex
Mercedes-Benz car locksmith services across Essex, no call-out fee, all models covered.
Available now across Essex · Typical response under 60 minutes

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Mobile Mercedes-Benz Auto Locksmith Across Essex
Mercedes-Benz is one of the most popular car brands in Essex. Whether you drive an A-Class, C-Class, E-Class or GLC, our auto locksmiths carry the tools and software to get you back on the road fast. We cover the full county from Basildon to Colchester.
Popular Mercedes-Benz models we work on:

Our Mercedes-Benz auto locksmith services
Mobile Mercedes-Benz auto locksmith services across Essex, we come to you.
Car Lockouts
Locked out of your Mercedes-Benz? We come to you fast, anywhere in Essex.
Car Key Duplication
Mercedes-Benz keys cut and programmed to your vehicle on-site.
Car Fob Duplication
Mercedes-Benz remote fobs programmed on-site. No dealership visit needed.
Van Lock Installation
High-security van locks fitted on-site for any commercial vehicle.
Mercedes-Benz Key Blanks and Remote Fobs
These tables show the Mercedes-Benz models we can supply keys and remote fobs for, with the key blade each model uses. Use them to check your vehicle, then call us on 07984 684261 with your registration and we will confirm the right key. You can read more about our car key duplication and car fob duplication services.
Mercedes-Benz Key Blanks
| Model | Years | Key blade | Key type |
|---|---|---|---|
| 190 | 1984 to 1993 | HU41 | Non transponder key |
| 190 | 1986 to 1992 | HU55 | Non transponder key |
| 200 | 1986 to 1991 | HU39 | Non transponder key, Transponder key |
| 280 | 1986 to 1991 | HU39 | Non transponder key, Transponder key |
| 300 | 1986 to 1991 | HU39 | Non transponder key, Transponder key |
| 420 | 1986 to 1991 | HU39 | Non transponder key, Transponder key |
| 500 | 1986 to 1991 | HU39 | Non transponder key, Transponder key |
| A Class | 1997 to 2004 | HU64 | Remote key blade, Transponder key |
| C Class | 1993 to 1996 | HU64 | Non transponder key, Remote key blade, Transponder key |
| Citan | 2012 to 2021 | VA2 | Remote key blade, Transponder key |
| M Class | 1997 to 2004 | HU64 | Remote key blade, Transponder key |
| SLK | 1996 to 2004 | HU64 | Remote key blade, Transponder key |
| Sprinter | 1995 to 2007 | YM15 | Non transponder key, Remote key blade, Transponder key |
| Vito | 1996 to 2005 | YM15 | Non transponder key, Remote key blade, Transponder key |
Mercedes-Benz Remote Fobs and Smart Keys
| Model | Years | Fob type | Buttons | Frequency |
|---|---|---|---|---|
| A-Class, FBS3 System | 2004 to 2012 | Smart or dash key | 3 | 433MHz |
| B-Class, FBS3 System | 2005 to 2011 | Smart or dash key | 3 | 433MHz |
| C-Class, FBS3 System | 2000 to 2014 | Smart or dash key | 3 | 433MHz |
| Citan | 2012 to 2021 | Remote key | 3 | 433MHz |
| Citan | 2012 to 2021 | Flip key | 2 | 433MHz |
| Citan | 2025 | Smart or dash key | ||
| CLC-Class, FBS3 System | 2008 to 2011 | Smart or dash key | 3 | 433MHz |
| E-Class | 2010 to 2013 | Smart or dash key | 3 | 433MHz |
| E-Class, FBS3 System | 2002 to 2013 | Smart or dash key | 3 | 433MHz |
| G-Class, FBS3 System | 1998 to 2015 | Smart or dash key | 3 | 433MHz |
| M-Class, FBS3 System | 2005 to 2015 | Smart or dash key | 3 | 433MHz |
| R-Class, FBS3 System | 2005 to 2014 | Smart or dash key | 3 | 433MHz |
| S-Class, FBS3 System | 1998 to 2013 | Smart or dash key | 3 | 433MHz |
| SL, FBS3 System | 2001 to 2012 | Smart or dash key | 3 | 433MHz |
| SLK, FBS3 System | 2004 to 2013 | Smart or dash key | 3 | 433MHz |
| SLR, FBS3 System | 2004 to 2013 | Smart or dash key | 3 | 433MHz |
| SLS AMG, FBS3 System | 2010 to 2013 | Smart or dash key | 3 | 433MHz |
| Sprinter 3-t, FBS3 System | 2006 to 2018 | Smart or dash key | 3 | 433MHz |
| Sprinter 3,5-t, FBS3 System | 2006 to 2018 | Smart or dash key | 3 | 433MHz |
| Sprinter 4,6-t, FBS3 System | 2006 to 2018 | Smart or dash key | 3 | 433MHz |
| Sprinter 5-t, FBS3 System | 2006 to 2018 | Smart or dash key | 3 | 433MHz |
| Viano, FBS3 System | 2003 to 2018 | Smart or dash key | 3 | 433MHz |
This application list is correct as at the time of creating and may not be exhaustive. Source: our trade supplier application lists, October 2026. If your model is not shown, call 07984 684261 and we will check.
We cover the full Mercedes-Benz range across Essex, from A-Class and C-Class to E-Class, GLC and Sprinter vans. Mobile service, no call-out fee, professional equipment on every job.
Other Car Makes We Cover
Don't see your make? We cover all manufacturers, call 07984 684261
Authorised Auto Locksmith provides specialist Mercedes auto locksmith services across Essex. Whether you need a replacement Mercedes car key programmed, have been locked out of your vehicle, or require roadside assistance for a key or lock problem, our mobile technicians come directly to your location. We work on all Mercedes models and key types from our base in Basildon, covering the whole of Essex.
Mercedes key systems are among the most advanced in the automotive industry. KEYLESS-GO, smart key technology and encrypted transponder systems all require specialist equipment and training to work on correctly. Our team carries the right tools to handle every Mercedes lock and key job on-site, without needing to recover your vehicle to a main dealer.
Call 07984 684261 for Mercedes auto locksmith services in Essex. We cover Basildon, Chelmsford, Colchester, Southend-on-Sea, Harlow, Brentwood and all surrounding areas across the county.

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Mercedes Car Key Replacement Essex
Lost your Mercedes keys or need a spare? Authorised Auto Locksmith carries out Mercedes car key replacement across Essex on-site. No recovery truck required, no days-long dealer wait. We cut and programme replacement Mercedes keys at your location the same day.
Mercedes car key replacement via a main dealer is expensive and slow. Our mobile auto locksmiths come to you, verify your vehicle identity, supply the correct key, cut it and programme it to your Mercedes. We cover all Mercedes key types including standard remote keys, chrome smart keys and KEYLESS-GO keys.
Lost Mercedes Keys: All-Keys-Lost Situations
If you have lost your only set of Mercedes keys, our technicians carry specialist equipment to programme a replacement key from scratch. Even in all-keys-lost situations, we can match a new key to your Mercedes immobiliser and get you back on the road without a dealer visit. We handle these jobs across all Essex locations.
Mercedes Spare Key Duplication
Having a spare Mercedes key is far more cost-effective than arranging an emergency replacement later on. If you still have one working key, we can cut a duplicate and programme it to your vehicle on the same visit. Spare key cutting and programming is one of the most common jobs we carry out across Essex.
Mercedes Fob and Smart Key Replacement
Mercedes remote fobs and smart keys control central locking, boot release and in KEYLESS-GO models, keyless entry and push-button start. If your Mercedes fob or smart key has stopped working, is damaged or has been lost, we supply a replacement and programme it to your specific vehicle on-site. We carry replacement keys and fobs compatible with all Mercedes models and generations.

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Mercedes Car Lockout Essex
Locked out of your Mercedes? Authorised Auto Locksmith attends Mercedes lockout call-outs across Essex. Our mobile technicians use professional non-destructive entry methods to access your vehicle without causing damage to the door locks, seals or bodywork.
Whether you have left your Mercedes keys inside the car, your KEYLESS-GO system has failed, your fob battery has died, or the door lock mechanism has developed a fault, our team resolves the problem on-site. We cover Mercedes lockouts in Chelmsford, Colchester, Southend-on-Sea, Harlow, Grays, Brentwood, Rayleigh, Wickford and all surrounding areas.
Locked Out of Your Mercedes?
Call 07984 684261. Our team will confirm availability and get a technician to your location as quickly as possible. We attend Mercedes lockout call-outs across the whole of Essex and aim to reach customers without delay. Getting you back on the road is the priority.
Non-Destructive Entry for Mercedes Vehicles
We use professional auto locksmith tools and entry techniques on Mercedes vehicles. Our methods are designed to avoid any damage to door locks, seals or paintwork. In the vast majority of cases, your Mercedes will be fully undamaged after entry. We do not drill locks unless there is genuinely no other option.
KEYLESS-GO Entry Problems
Mercedes KEYLESS-GO allows the vehicle to detect the smart key as you approach and unlock automatically. If KEYLESS-GO fails, whether from a flat smart key battery, signal interference or a system fault, our technicians can access your vehicle and carry out the necessary repair or battery replacement on-site.

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Mercedes Key Programming Essex
All Mercedes keys contain transponder chips that must be correctly programmed to communicate with the vehicle's immobiliser. Without correct programming, a replacement key will not start your Mercedes. Our technicians carry specialist diagnostic equipment to programme Mercedes keys accurately on-site across Essex.
Mercedes Transponder Key Programming
Mercedes transponder keys are coded to match your specific vehicle. Our team programmes replacement transponder keys and remote keys on-site using professional equipment that covers all Mercedes models and generations. This includes older infrared remote keys and modern encrypted smart key systems.
Mercedes KEYLESS-GO Programming
KEYLESS-GO smart keys require specialist programming to pair with your vehicle's proximity detection and push-button start system. Our technicians programme KEYLESS-GO replacement keys on-site for all compatible Mercedes models. We carry KEYLESS-GO compatible keys for the A Class, C Class, E Class, S Class, GLA, GLC and GLE ranges.
Mercedes Key Housing Replacement
If the case of your Mercedes key is cracked or the buttons have worn through, the electronics inside are often still working. In many cases we can transfer them into a new housing, which is quicker and cheaper than a full replacement key. We carry out this work on-site across Essex.

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Mercedes Ignition Repair Essex
Mercedes ignition barrels and ignition systems can develop faults or fail entirely over time. If your Mercedes key will not turn in the ignition, the barrel is stiff, a key has snapped inside the ignition, or the start system is producing warning lights, our mobile locksmiths can diagnose and repair the problem on-site.
Mercedes Ignition Problems
Common Mercedes ignition problems include a worn barrel that no longer accepts the key correctly, a seized ignition after a key has broken inside, or electronic faults within the push-button start system. Our technicians assess the problem before recommending any repair, so you only pay for what is actually needed.
Mercedes Ignition Barrel Replacement
When a Mercedes ignition barrel is beyond repair, we carry out a full replacement on-site. Where possible the new barrel is matched to your existing key, avoiding the need for an entirely new key set. We cover ignition barrel replacement for all Mercedes models across Essex.

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Mercedes Models We Cover
Authorised Auto Locksmith covers auto locksmith services across the complete Mercedes model range. We carry parts and programming equipment for all Mercedes variants, from compact hatchbacks and executive saloons to large SUVs and commercial vans.
Mercedes A Class and B Class
The A Class and B Class are among the most popular compact Mercedes models in Essex. We carry out car key replacement, fob programming, lockout assistance and ignition repair for all variants including A Class Saloon, A Class Hatchback and B Class MPV across all generations.
Mercedes C Class and E Class
The C Class and E Class are the core of the Mercedes saloon range. We cover auto locksmith services for all C Class and E Class generations, including Saloon, Estate (T-Model), Coupe and Cabriolet. KEYLESS-GO programming, key replacement and lockout assistance are all handled on-site.
Mercedes S Class, CLA and CLS
Executive and luxury Mercedes models including the S Class, CLA and CLS use advanced key systems including KEYLESS-GO and encrypted smart keys. Our technicians are experienced with the full range of key systems fitted to these vehicles and carry compatible equipment for all generations.
Mercedes GLA, GLC, GLE and GLS
Mercedes SUV and crossover models are extremely popular across Essex. We cover auto locksmith services for the GLA, GLC, GLE and GLS across all generations. Smart key programming, KEYLESS-GO replacement and non-destructive lockout entry are all carried out on-site.
Mercedes Sprinter and Vito Vans
Mercedes Sprinter and Vito vans are widely used by Essex businesses and tradespeople. We carry out car key replacement, lockout assistance and van lock installation for Sprinter and Vito models. Van lock security is increasingly important for businesses operating across Essex.

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Areas We Cover in Essex
Based in Basildon, Authorised Auto Locksmith provides mobile Mercedes auto locksmith services across the entire county of Essex. We attend call-outs in all the following areas and beyond: Our mobile team also looks after Mercedes drivers in Ilford.
Basildon, Chelmsford, Colchester, Southend-on-Sea, Harlow, Brentwood, Braintree, Canvey Island, Grays, Wickford, Leigh-on-Sea, Maldon, Rayleigh, Rochford, Epping and all surrounding areas throughout Essex.
If you are unsure whether we cover your location, call 07984 684261. Our team will confirm and give you an estimated arrival time. We aim to keep response times short across all Essex locations.

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Mobile Mercedes Locksmith Service
All our Mercedes auto locksmith services are fully mobile. Our technicians come to your home, workplace, car park or roadside location anywhere in Essex. You do not need to arrange vehicle recovery. We bring all the programming equipment and key cutting tools required to complete the job on-site.
Mobile auto locksmith services mean less disruption and lower overall costs for Mercedes owners. Whether you are at work in Chelmsford, stuck in a car park in Colchester or stranded roadside near Brentwood, one call to 07984 684261 gets a technician on the way to you.

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Mercedes Van Lock Installation Essex
In addition to car key and lockout services, Authorised Auto Locksmith installs security locks on Mercedes Sprinter and Vito vans across Essex. If you operate a Mercedes van for your business and require additional security, our team can supply and fit approved deadlocks, slam locks and high-security lock cylinders on-site.
Why Van Lock Security Matters
Tool theft from vans is a significant problem for Essex tradespeople and businesses. Additional Mercedes van locks act as a visible deterrent and genuine barrier to break-in. Our technicians fit van locks that meet insurance requirements across all Mercedes Sprinter and Vito sizes and configurations.

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Common Mercedes Lock and Key Problems
Mercedes owners across Essex contact us with a range of lock and key problems. Here are the most frequent issues our technicians deal with on-site.
Mercedes Immobiliser Not Recognising Key
If your Mercedes displays an immobiliser or "no key detected" warning and refuses to start, the vehicle is not recognising the key signal. This can be caused by a flat smart key battery, a damaged transponder chip or a system fault. Our technicians diagnose the problem and carry out the necessary repair or re-programming on-site.
Broken Mercedes Key Blade
Key blades can snap inside Mercedes door locks or ignition barrels. We extract the broken blade using specialist tools, supply a replacement cut to the correct profile, and carry out any required programming on the same visit. Broken key extraction and replacement is one of the most common jobs we attend across Essex.
Mercedes Remote Fob Not Working
A Mercedes remote fob that stops locking or unlocking the vehicle is usually down to a flat battery, signal loss or internal damage. We check the fob, replace the battery if that resolves the issue, or supply and programme a replacement fob if the unit is beyond repair. All fob work is carried out on-site across Essex.
Boot Release Not Working
Mercedes boot release mechanisms can fail due to lock faults, fob signal problems or internal boot latch issues. If you cannot open the boot of your Mercedes, our technicians can assess and repair the problem on-site. We carry parts for common Mercedes boot lock faults across the main model ranges.

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Peace of Mind: Why Mercedes Owners Choose Authorised Auto Locksmith
Mercedes owners have high expectations of the services they use, and rightly so. Here is why customers across Essex trust Authorised Auto Locksmith for their Mercedes lock and key work. You can also read our Google reviews here.
No Hidden Prices
We provide a clear quote before any work begins. The price we quote is the price you pay. There are no hidden call-out fees, no dealer-style admin charges and no surprise additions at the end of the job. We want every customer to know exactly what the work costs before we start.
Specialist Experience with Mercedes Vehicles
Mercedes vehicles require specific programming equipment and experience. Our technicians work on Mercedes models regularly across Essex and understand the differences between key generations, model ranges and immobiliser systems. We carry Mercedes-compatible tools on every van.
Fast Response Times
A Mercedes lockout or lost key situation needs to be resolved quickly. Our mobile team covers all of Essex and we provide a confirmed response time when you call. Keeping customers waiting is not acceptable. We aim to reach your location as fast as possible from wherever you are in Essex.
Fully Mobile: No Recovery Costs
Because we come to you, there is no need to arrange a recovery vehicle. This saves a significant additional cost for Mercedes owners who might otherwise be charged hundreds of pounds just for the vehicle to be transported to a dealer or workshop.

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Getting a Quote for Mercedes Locksmith Services
To get a quote for Mercedes auto locksmith services in Essex, call 07984 684261. Have your Mercedes model, year and a description of the problem ready when you call. This lets us provide an accurate price immediately without a pre-visit assessment.
We do not charge for a phone quote. Our team asks a few questions about your Mercedes model and the lock or key issue, then provides a clear price. If you are happy to go ahead, we book a technician, confirm your location and give you an estimated arrival time.

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Frequently Asked Questions About Mercedes Auto Locksmith Essex
Can a locksmith make a new key for my Mercedes in Essex?
Yes. Authorised Auto Locksmith carries key cutting and programming equipment for Mercedes vehicles on every van. For most Mercedes models, we can cut and programme a replacement key on-site without advance ordering. Call 07984 684261 to confirm for your specific model and year.
How fast can a Mercedes locksmith arrive in Essex?
Response times depend on your location and technician availability. We cover all of Essex from Basildon and aim to reach customers as quickly as possible. Call 07984 684261 and we will confirm how quickly we can be with you.
Do Essex locksmiths offer emergency service for Mercedes?
Call 07984 684261 to check current availability. We aim to cover emergency Mercedes lockout and lost key situations across Essex and will confirm what assistance is available when you call.
Can an Essex locksmith repair my Mercedes ignition?
Yes. We assess and repair Mercedes ignition problems on-site. If the barrel needs replacing, we carry out the replacement at your location. Call 07984 684261 to discuss your specific ignition problem and get a quote.
What services do Mercedes auto locksmiths provide in Essex?
We provide car key replacement, spare key duplication, fob programming, KEYLESS-GO smart key programming, non-destructive lockout entry, ignition repair and van lock installation for Mercedes vehicles across all Essex locations.
Is it cheaper to use a locksmith than a Mercedes dealer for key replacement?
In most cases, yes, and by a significant margin. Main dealer Mercedes key replacement involves high parts costs, labour charges and often requires booking days in advance. Our mobile service comes to you, uses the same quality parts, and is priced transparently. Call 07984 684261 for a direct comparison quote.


