CURRENTLY CLOSED. We are currently closed and will reopen on Monday 28th September 2026. During this time, we are unfortunately unable to carry out any urgent key replacements. If you are looking for a quotation for a spare key and your request is not urgent, please use our CDS Quick Quote service. Submit your details online and we’ll get back to you with a quotation within 24 hours.

Mercedes FBS 4 ESL Repair Service

CDS Car Keys are Mercedes Electronic Steering Lock (ESL) FBS4 repair specialists serving Birmingham and surrounding areas. We provide fast, professional and cost-effective ESL repairs for Mercedes-Benz and Infiniti vehicles affected by common FBS4 steering lock faults.

If your vehicle will not start, the steering lock will not release, or you are seeing ESL fault codes, we offer same-day ESL repair, a UK-wide postal service, and while-you-wait repairs for customers bringing a removed ESL unit to us.

MERCEDES & INFINITI ESL FBS4 REPAIR SERVICES

We specialise in repairing FBS4 Electronic Steering Locks, helping you avoid expensive main dealer replacements and unnecessary programming.

Our ESL repair services include:

• Same-day Mercedes ESL repair in Birmingham
• Mobile and local coverage across surrounding areas
• UK-wide postal ESL repair service
• While-you-wait repairs for pre-removed ESL units
• OBD ESL repair and bench repair services
• Repair of your original ESL unit

VEHICLES AND MODELS SUPPORTED

OBD ESL REPAIR (IN VEHICLE):

• Infiniti Q30
• Infiniti Q50
• Mercedes W117 (CLA Class)
• Mercedes W156 (GLA 45 AMG)
• Mercedes W172 (SLK)
• Mercedes W176 (A-Class)
• Mercedes W205 (C-Class)
• Mercedes W207 (E-Class Coupe)
• Mercedes W212 (E-Class)
• Mercedes W218 (CLS Class)
• Mercedes W246 (B-Class)
• Mercedes W447 (V-Class / Vito)

BENCH ESL REPAIR (UNIT REMOVED):

• Infiniti Q30
• Infiniti Q50
• Mercedes W117
• Mercedes W156
• Mercedes W172
• Mercedes W176
• Mercedes W177
• Mercedes W205
• Mercedes W207
• Mercedes W212
• Mercedes W218
• Mercedes W242
• Mercedes W246
• Mercedes W247
• Mercedes W447
• Mercedes W907
• Mercedes W910

Looking for older FBS3 ESL repairs? Click Here

COMMON MERCEDES ESL FBS4 FAULT CODES

We repair Electronic Steering Lock faults associated with the following diagnostic trouble codes:

B225409 – ESL component fault
For FBS4 ESL part numbers:
A 099 900 41 01
A 099 900 41 01 80
A 099 900 83 00
A 099 900 87 01
A 099 900 94 01

B225409 – ESL component fault
B225464 – ESL is faulty
For FBS4 ESL part number:
A 212 900 98 25

These faults commonly cause no ignition, no engine crank, steering lock failure, or complete vehicle immobilisation.

SERVICE AREAS – BIRMINGHAM & SURROUNDING AREAS

We provide Mercedes ESL FBS4 repair services throughout Birmingham and the wider West Midlands, including:

• Birmingham
• Solihull
• Sutton Coldfield
• Wolverhampton
• Walsall
• Dudley
• West Bromwich
• Smethwick
• Oldbury
• Tipton
• Halesowen
• Stourbridge
• Rowley Regis
• Great Barr
• Erdington
• Handsworth
• Kings Heath
• Moseley
• Selly Oak
• Northfield
• Longbridge
• Yardley
• Acocks Green
• Sheldon
• Stechford
• Castle Bromwich
• Coleshill

WHY CHOOSE CDS CAR KEYS?

• Mercedes ESL FBS4 specialists
• Same-day repair available
• Postal service across the UK
• While-you-wait ESL bench repairs
• Cost-effective alternative to dealer replacement
• Experienced with Mercedes and Infiniti FBS4 systems

CONTACT CDS CAR KEYS TODAY

If your Mercedes or Infiniti is suffering from an ESL FBS4 fault, contact CDS Car Keys today for fast, professional repair in Birmingham and surrounding areas.

Same-day service available
UK postal repair service
While-you-wait repairs for removed ESL units

Get your vehicle back on the road quickly with trusted Mercedes ESL specialists.

Just Looking For a Quote? Use CDS Quick Quote!

Click the button below now for the fastest response times!

CDS Car Keys

5.0

Based on 262 reviews

review us on

Sam Sylvester

08:22 05 Sep 26

Came back from holiday and had left my car keys abroad. He was really understanding and helpful. He agreed to meet me at my car when I had landed back in England. As it was all planned from the moment I realised I didn’t have my car keys in Tenerife airport on the way home. He also got us on our way home really quick.

Musda Rashid

20:42 03 Sep 26

Misplaced my keys. Respectful and honest. From the moment of enquiry up until the point of repair did not take more than 3 hours. Communication was on point, work was done perfectly. Just gets on with the job and has it sorted in 30 mins. I’d highly recommend if you ever need your keys replaced.

Caitlain Franklin

16:59 08 Aug 26

Guy was here for less than half an hour and had managed to cut me a second key and remove the my key restrictions off the car I'd bought second hand. Very good service, would definitely recommend

Imogen Wade

21:41 29 Jun 26

I lost my car and house keys on a night out. I called multiple car locksmiths nearby for quotes, and CDS Car Keys had the best price and the quickest call out time. Cameron arrived when he said he would, and did excellent work. He was polite and efficient. (Hopefully I never lose my car keys to the streets of Birmingham again, but if I do, I know who to call.) 10/10 experience! Thank you.

Fabio Bianchi

12:03 16 May 26

I lost my only car key at work. I contacted AA and Ford, they was expensive and it would take days. Then I contacted CDS Car Keys for a quick quote and I discovered the best price, so I bought two key for the price of one from the main dealer. Cameron came to my workplace and sorted out my problem in 45 min with two original and 12months guaranteed keys. Fantastic communication. 5 stars truly real and very well deserved

HARVINDER MAHEY

15:30 01 Apr 26

Great service from Cameron!! Polite on time very competitive on price. Will use again

Muhammad Umair Nasir

17:10 25 Mar 26

I recently lost the only key to my Mercedes C-Class and didn’t have a spare, so I was honestly pretty stressed. I contacted CDS Car Keys, and Cameron came out incredibly quickly and completely put my mind at ease.

He was professional, friendly, and clearly knew exactly what he was doing. He
got everything sorted in no time at all. On top of that, the price was very reasonable, which I really appreciated given the situation.

I’m genuinely so grateful for the help and couldn’t recommend CDS Car Keys and Cameron highly enough. If you ever find yourself stuck like I was, they’re absolutely the people to call!

Babar Nasar

13:08 05 Mar 26

CDS Car Keys is a professional car key service that exceeded my expectations. From providing a quote to issuing a new car key, the staff was friendly and had excellent communication skills. They went above and beyond by completing some additional work at no extra cost. This is a rare and exceptional individual who is a true asset to the business.

katie pass

13:08 04 Mar 26

The service was great. I booked quickly and found the best price from the quotes I received. The staff were also very friendly and efficient.

Lucy Woods

13:46 01 Mar 26

Fantastic service from start to finish. He came out promptly and sorted a new car key for me quickly and efficiently. Very reliable, friendly and professional. Made the whole process stress-free. Would definitely recommend!

Sally Clay

19:04 26 Feb 26

Contacted for help with my car ignition that had got rainwater in and was getting stiff and clunky. They recommended using GT85 which has worked well. Great advice, thank you. Didn't need to pay someone to do any work thankfully.

Sarah Wilson-Mottram

14:39 20 Feb 26

Amazing service, great value for money, fast service

Sally Chapman

07:36 17 Feb 26

Very responsive service, additional car key cut and programmed at my home at a good cost.

Kirsty

11:02 14 Feb 26

I wanted a spare key for my car. Advice was provided about what type of key I would need and a visit to cut the new key was arranged promptly. Good service and price. Significantly cheaper than what a large key cutting chain is offering. Key comes with a good warranty

John Corrigan

21:11 10 Feb 26

Cameron was very professional and polite, come out late evening to get the job sorted for me..definitely use this company again if needed.. 100 percent recommend 👍🏻

Nahim Akhtar

14:49 27 Jan 26

Cameron provided a excellent and friendly service, he got my Mazda key issue resolved in no time.

Explained the issue over the phone and was confident of what the issue was and how to resolve it.

Came to my house on time, and within 5-10 min got the job done and guaranteed the fix.

Would definitely use him again in the future.

george jennings

17:22 14 Jan 26

Cameron is a smashing bloke! Fantastic communication, half the price of the main dealer and sorted my spare key the same day. He even disabled the lost key so it couldn’t be used anymore. Couldn’t recommend him enough🤝

Carl Snee

11:56 08 Jan 26

Absolutely fantastic from start to finish. Customer service was second to none and the speed at which they could accommodate our FRM repair to our mini was exceptional. 100% recommend to anyone to use this service.

Russell Bailey

21:04 03 Dec 25

Can’t speak highly enough of Cam.came out on a Sunday and my problem couldn't be resolved due to my car having a ghost immobilizer on it until ghost came out to disable it. He was in constant dialogue with me till this issue was resolved once the issue was sorted he came when he said he would sorted me 2 new key fobs and above all was a genuine propa nice person who went above and beyond.A real pleasure to deal with and I can't thank him enough !!! Any people with key fob issues in and around Bham he's the man a credit to himself and his profession thanks again cam 👍👍

Mercedes FBS 4 ESL Repair Service

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