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

Kings Autos Ltd

5.0/5

I'm a NVQ level 3 fully qualified mechanic with 18 years experience. I specialize in Mazda vehicles as I worked for them for 15 years however I have worked with independent garages so I am proficient with all makes. We carry out all work from servicing to timing chains.

Kings Autos Ltd Unit 1 Phoenix Road, Lowestoft, NR337NP

WHEELBASE

5.0/5

Wheelbase are an established local independent garage and are proud to be members of Autofirst Network – a nationwide network of independent garages operating to the Network’s 6 core values of Capability, Consistency, Care, Clarity, Cost Effectiveness and Customer Focus. For your added peace of mind we are members of the Motor Ombudsman service which is approved by The Trading Standards Institute. In short, we are a local garage you can trust offering you the support and service guarantees of a national network, giving you complete peace of mind. We cover Basingstoke and surrounding areas and offer courtesy cars as well as a free collection and delivery service.

24B Victoria Way, Burgess Hill, RH15 9NF

Performance 3000 RAC Yeovil

4.8/5

Performance 3000 are the RAC approved garage for Yeovil and the surrounding areas in Somerset. • We use Bosch KTS (some of the most advanced equipment in the world) as our primary source of diagnostic equipment. • We only fit genuine Bosch or original specification equipment • We work to approved and audited codes of practice • Our Code of Practice is approved by the Trading Standards Institute • Our technicians are comprehensively trained by Bosch • We only ever carry out work with your permission • We provide a quotation before we start any work • We keep your old parts so that you can see that the work was necessary • We use industry approved times when calculating how much labour to charge so that you know the price you pay is fair • Our technicians are comprehensively trained and document every procedure. • We are able to assist with the collection and return of vehicles, wherever possible We offer services which other garages and main dealers are unable to: • Our in-house rolling road enables us to diagnose and test vehicles in our workshop just as if they were driving along a road • We hand-make stainless steel exhaust systems on your car whilst you wait • Our in-house machine shop allows us to fabricate various items on-site

40 Buckland Road, Pen Mill Trading Estate, Yeovil, BA21 5HA

A30 Auto Service Centre

4.7/5

RAC Approved Car and Van specialist Service Centre with over 75 years of experience, We also offer MOT, Servicing, and light repair for all other vehicle types. Our highly skilled technicians are dedicated to ensuring your vehicle is running smoothly and efficiently. Contact us today to schedule your appointment and experience the best in automotive care. SERVING ALL AREAS OF CORNWALL INCLUDING ST AUSTELL, BODMIN, WADEBRIDGE, TRURO & VICTORIA CONTACT US TODAY TO SCHEDULE YOUR APPOINTMENT AND EXPERIENCE THE A30 AUTO SERVICE CENTRE DIFFERENCE.

Unit 4B Victoria Industrial Estate, Victoria, St Austell, PL268LX

Turner Brothers

4.8/5

Established in 2000, Turner Brothers has grown in to one of the most comprehensive and forward thinking garages in the area. Services include anything from bulb replacement to full engine rebuilds and body shop facilities. We are a recommended Bosch Service Centre.

Turner Brothers Limited, Bottoms Mill, Woodhead Road, Holmfirth, HD9 2PX

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.