Book Key Programming and Codes for your Mercedes

Why choose the RAC for key programming and codes?

At the RAC, we've got over 125 years' experience helping UK drivers. We have the skills and knowledge to keep your vehicle running. We'll give you results you can rely on at a price you can afford.

Close up of an RAC Mobile Mechanic underneath a car

Book a key programming and coding service

Lost or damaged keys? Our RAC Approved Garages can offer fast and reliable key programming and coding services.

Quality work

Any work done will meet the high standards set by the RAC.

Exceptional customer service

We’re friendly, straightforward and jargon-free

A mechanic inspecting the underside of a vehicle.

Book a diagnostic

A mechanic will check your car for faults and talk you through any repairs you might need. There are various ways to check for faults, which could include a physical examination or plugging in to check your car’s onboard engine management system.

Diagnostic check

We’ll look for any mechanical or electrical problems. If we need to, we’ll also check your car’s onboard engine management system. Depending on your car and issue, this will usually include: – Engine – Power steering – Brakes – Transmission – Exhaust system – Fuel injection system – Cooling system and air flow – Sensors

And it’s not just key programming and codes that we can do for your Mercedes

RAC Approved Garages offer MOTs and services. Our professional mechanics have the expertise and experience to make sure your vehicle is operating safely and efficiently – results you can rely on at a price you can afford.

A close up of an RAC mobile mechanic looking under the hood of a car

Try one of our RAC Approved Garages

View all garages

Service Garage MOT & Repair Centre

5.0/5

Service Garage has been trading for over 60 years, established in 1946 we provide an extensive range of motoring services for Southend-on-Sea and surrounding areas. We can offer free collection and delivery service. The services we provide include; MOT testing, servicing, repair, batteries, tyres, exhausts, punctures, air conditioning and diagnostic testing.

4 Towerfield Close, Shoeburyness, Southend-On-Sea, SS3 9QP

G & R Autos LTD

4.8/5

We have over 17 years previous experience within the motor trade. We take on all makes and models of cars and short wheel-base vans. We can do anything from: Bulbs, brakes, exhausts, servicing, cambelts, welding, MOT’s and much more! We offer collection and delivery service within a 5 mile radius to reduce inconvenience you your working day.This service has to be booked in advance. For your no obligation quote call us!

Unit 18 G, Chapman Way, Tunbridge Wells, TN23EF

Witney Vehicle Repairs Ltd

4.6/5

Here at Witney Vehicle Repairs we have over 30+ years of experience, pride ourselves on our commitment to give the very best in car repairs, servicing, diagnostics, & customer satisfaction. Our pricing is very competitive with no hidden surprises, We look forward to earning your trust & gaining your custom. And now we are proud to announce we have become an RAC approved garage offering RAC inspections, repairs and other RAC products. Also we are part of the RMI & and trust my garage network, We are now offering a Shell / Forte vehicle service, parts & preventative solutions package please contact us for more information.

Witney Road, Standlake Business Park, Witney, OX297PR

LM MOTOR CLINIC

4.8/5

Welcome to LM Motor Clinic in Kilmarnock. We are a long-established well run Castrol Service Centre providing exceptional garage repair services all provided by fully qualified and experienced technicians at competitive prices. Based in Kilmarnock, whether you need servicing, repairs or even diagnostics we can help. Our technicians have over 30 years combined experience in the motor industry so you can always rely on LM Motor Clinic for first-class servicing and repairs. What We Can Offer: Car & Van Servicing & Repairs Tyres & Exhausts Clutch Replacements Diagnostics Oil Changes Breakdown Recovery Castrol service Centre Flexible Payment Options As well as the above we also provide our customers in Kilmarnock with the following, Fair and Friendly Service, Pick Up Drop Off Service & all our garage services are Competitively Priced making sure you get the best possible rate for your service. Find out how we can help you Quality Work Honest Pricing Exceptional Customer Service Complete Peace of Mind We Have the Lastest Diagnostics with Dealer Software. Voted Scottish Garage of the Year and Scottish Specialist Garage of the Year at the Scottish Garage awards

19 Dean Street, Kilmarnock, KA31DY

Springbank Service Station

5.0/5

We are an independent family run business serving the local community for over 35 years.At Springbank Service Station you will find a filling station under the Jet brand incorporating a shop, Jet washes, vacuum and parking.We also specialise in servicing and M O T's to all makes of vehicleAll of our new and existing customers are greeted by friendly and helpful staff.

Ayr Road Irvine, Irvine, KA12 8NF

Frequently asked questions about key programming and codes

Can you program a car key yourself?

Yes, some car keys can be programmed at home using the vehicle's manual instructions. However, this is generally limited to basic key fobs and older models. For most modern cars, you’ll need to take it to a professional.

How do I reprogram a car key at home?

If your key can be reprogrammed at home, follow the instructions set out in your vehicle’s manual. If you don’t have access to this, you could try the general advice outlined below.
Insert the key into the ignition and turn it to the 'On' position without starting the engine.
Leave the key in this position for about 10 minutes, then turn it to the 'Off' position.
Repeat this two more times.
Turn the key to the 'On' position one last time, and it should be programmed.

What should I do if my key fob stops working?

First, check the battery and replace it if necessary. If the key fob still doesn't work, it may need reprogramming. Contact a professional locksmith or your dealership for help.

Can a locksmith reprogram my car key?

Yes, many professional locksmiths offer car key programming services. You’ll often find this is a more cost effective option that going to your dealership.

How long does it take to reprogram a car key?

Typically it takes between 30 minutes to an hour to reprogram a car key. This may vary depending on your car’s make and model.

Is reprogramming covered under warranty?

Car key reprogramming may be covered under your vehicle's warranty, but it depends on the terms and conditions. Check with your warranty policy for specific details.

Can reprogramming fix a damaged key fob?

Reprogramming can fix software-related issues with the key fob, but it won't repair physical damage. If the key fob is damaged, you may need to replace it entirely.

What are the benefits of reprogramming a car key?

Reprogramming a car key makes sure that only authorised keys can start the vehicle. It can also resolve some of the issues attached to lost or damaged keys, giving you peace of mind and convenience.

Is it possible to reprogram a used car key?

Reprogramming a used car key is possible depending on the make and model of your vehicle. Check your vehicle's manual or consult with a professional to find out if it’s possible for your car.

How can I prevent key fob issues in the future?

Prevent key fob issues by avoiding moisture exposure, replacing the battery regularly, and handling your key with care.

Can all cars have their keys reprogrammed?

Most modern cars with electronic key fobs or transponder keys can have their keys reprogrammed. However, older vehicles with traditional keys may not have this feature.