No response from the key
The key goes into the ignition but nothing happens, with no lights on the dashboard.
Mercedes steering lock fault · Open 24 hours, 7 days
Mercedes key goes into the ignition but nothing happens? On many models, that is a Mercedes steering lock fault, caused by a failed electronic steering lock known as the ESL or ELV. I fit a programmed ESL emulator at your vehicle, which gets the car starting again without a trip to the dealer. I am Shane, an auto locksmith based in Eastleigh.

Mercedes specialist
Many Mercedes models from the late 2000s and early 2010s use an electronic steering lock, called the ESL or ELV. Instead of a purely mechanical lock, a small electric motor locks the steering column when the car is switched off and releases it when the key is recognised. The ignition will only switch on once the steering lock confirms it has released.
When the steering lock fails, the car cannot confirm the steering is free, so it refuses to switch on. The key goes into the ignition but there is no response, no dashboard lights and no way to start the engine. The fault is best known on the C-Class (W204) and the E-Class (W207 and W212), but it can affect other models from the same era.
An emulator is a small electronic unit that takes over the failed steering lock’s role. It is programmed to your car so the ignition receives the signal it expects, and the car starts normally again. With an emulator fitted, the steering column no longer locks when the car is switched off, which is worth knowing before the work is done.
Symptoms
These are the classic symptoms of a failing ESL. Some appear gradually, while others happen all at once.
The key goes into the ignition but nothing happens, with no lights on the dashboard.
The car sometimes needs several attempts, or the key taken out and put back in, before it responds.
The steering wheel will not unlock even though the key is in the ignition.
The usual motor sound from the steering column when you insert the key has stopped.
The car is dead from the ignition, even though the battery and the lights are fine.
The remote locks and unlocks the doors, but the key will not start the car, which points away from the key itself.
Related services
If the steering lock turns out to be fine, one of these may be the answer.
If the key itself is at fault, it may need reprogramming or replacing.
Key fob programmingMechanical ignitionVehicles with a mechanical ignition barrel that has worn or jammed.
Ignition barrel repairNo keys leftEvery key gone. A new key made and programmed at your vehicle.
Lost car keysMain serviceReplacement keys for Mercedes and most other makes.
Car key replacementStep by step
The work is carried out where the car is, so there is no need to have it recovered.
I check the symptoms and the key to confirm the steering lock is the cause, not the key or the ignition.
I program the emulator to match your car so the ignition accepts it.
I fit the emulator so it takes over from the failed steering lock.
The ignition responds normally again and the car starts with your existing keys.
I test several starts and explain how the car behaves with the emulator fitted.
Your options
There are two main ways to fix a failed Mercedes steering lock. This is how they generally compare.
| What matters | New steering lock | ESL emulator |
|---|---|---|
| Where the work is done | Often at a dealer or garage | At your vehicle |
| Risk of failing again | A new motorised lock can wear over time | No steering lock motor left to wear |
| Keys | May need coding to the new part | Your existing keys keep working |
| Steering column lock | Locks as before | No longer locks electronically |
| When you can get help | Depends on parts and booking | 24 hours, 7 days a week |
Pricing
The price is usually more predictable than people expect. I confirm it before I set off, once I know the model.
Get a fixed quoteDifferent Mercedes models use different steering lock and ignition setups.
The emulator has to be programmed to match your car before it is fitted.
If a key is also faulty, it may need attention at the same time.
I check for other causes first, so you only pay for the repair you need.
Makes and models
As well as steering lock faults, I cover keys and locks for Mercedes-Benz vehicles and most other makes, from Ford and Vauxhall to BMW and Audi. Coverage depends on the model, year and key system, so send me your registration to check.
Where I work
I fit ESL emulators across Southampton, Eastleigh, Winchester, Portsmouth and the surrounding towns. See all the areas I cover and my recent jobs.
EXCELLENT
Based on 101 reviews
Posted on Google![]()
Ellis ShandTrustindex verifies that the original source of the review is Google.
Great service from Shane at Lucky Lock Master. I needed a spare for my 2020 Volkswagen Polo. When I spoke to Shane he let me know it would be a 5C system and gave me a brilliant price for it even explained what the process was. Everything was done on-site, in a timely manner and the new key works perfectly. Would definitely recommend! Thanks again Shane!Posted on Google![]()
Morgan MeadeTrustindex verifies that the original source of the review is Google.
Difficult lock as was dodgey but he was very patient with me and got it opened.Posted on Google![]()
Patricia EnglandTrustindex verifies that the original source of the review is Google.
Excellent service. Put my mind at rest immediately Very polite, fast and very efficient I would highly recommend Shane Patricia England Cost included a spare key!Posted on Google![]()
Kate GleesonTrustindex verifies that the original source of the review is Google.
Absolutely spot on service ,if you want reliable then Shane is the guy ,quick response and explains everything . Genuinely a guy you can trust to get you sorted thanks again ShanePosted on Google![]()
Jodine MillerTrustindex verifies that the original source of the review is Google.
come very quickly after I called as had lost my car keys, he even worked in the dark to get it done for me, great work. Thankyou very muchPosted on Google![]()
Izzy MCTrustindex verifies that the original source of the review is Google.
Incredible service! Lost my keys while at work and was stuck trying to get back home. After many calls to different people, Shane picked up straight away and got to my car in a very short amouth of time to unlock it. Would highly recommend.Posted on Google![]()
John MusgraveTrustindex verifies that the original source of the review is Google.
Was a pleasure to have Shane work on my Citroën, he is extremely knowledgeable, and thorough and he went over and above to sort my old Citroën's spare key and dashboard error. Nothing is too much trouble. Top Bloke is Shane and is highly recommended💯Posted on Google![]()
Simon JigginsTrustindex verifies that the original source of the review is Google.
Honestly faultless. Highly professional and a genuine friendly guy. Highly recommended.Posted on Google![]()
Dylan McNeishTrustindex verifies that the original source of the review is Google.
Locked myself out of my ford transit van key inside with engine still running. Shane responded very quickly gaining access even faster, lucky lockmaster will be my first call in future.Posted on Google![]()
james shetlerTrustindex verifies that the original source of the review is Google.
Needed a new van key pronto and after trying other companies who never replied or said they couldn’t do it, Shane was recommended to me by one of his competitors. A couple of phone calls and he turned up at my house, explained the process of programming the new key, cutting the key and then invited me to watch the process. Now that’s not for everyone but it was an interesting insight to someone else’s chosen profession. I would highly recommend his business to others in need of help.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Questions
Not sure if you have a Mercedes steering lock fault? Describe the symptoms and I will tell you what it sounds like.
Both refer to the electronic steering lock. ESL stands for electronic steering lock, and ELV comes from the German name for the same part. It locks the steering column when the car is switched off.
The fault is best known on the C-Class (W204) and the E-Class (W207 and W212), and it can affect other models from the same period. Send me your registration and I will check.
Yes. I fit a programmed emulator at your vehicle, so the car does not need to be recovered.
Yes. Your existing keys continue to work once the emulator is fitted and programmed.
No. With an emulator fitted, the steering column no longer locks electronically when the car is switched off. The car is still protected by its immobiliser.
It can be. If the doors lock and unlock but the car will not respond, the steering lock is the likely cause, but I always check the key first.
Send me your registration and I will give you a fixed price for the emulator and fitting.
Tell me the model and what happens when you put the key in, and I will tell you whether it sounds like the steering lock and what it costs to fix.