Key won't turn, won't come out, or the car won't start at all? It's often the ignition barrel or electronic steering lock, not the key — and replacing the key won't fix it.
This is the service most people arrive at by accident. The key looks fine, maybe it's brand new, and yet the car won't start, the key won't turn, or it won't come out of the ignition. Buying another key doesn't help, because the fault is in the ignition barrel or the electronic steering lock, not in your hand.
Matt's background is 20+ years as a vehicle technician working on diagnostics, ECUs and control modules — before he ever became a locksmith. That's exactly the skill set this job needs, and it's why he diagnoses the actual fault before recommending any parts. See how that background shapes the work.
If any of these sound familiar, a replacement key almost certainly isn't the answer.
It goes in fully but won't rotate, or needs jiggling and force every single time.
The ignition won't return to the off position, leaving the key trapped in the barrel.
Everything else works — lights, radio, dash — but the engine won't turn over.
The wheel stays locked in place even with the key inserted and turned.
These are genuinely different faults with different fixes, and telling them apart is most of the job.
The physical lock the key turns in. Wafers and springs inside wear over years of use, eventually binding or refusing to rotate. Often the cause when a key snapped — see broken key extraction.
A motorised unit that physically locks the steering column and reports to the vehicle's security system. When it fails, the car typically won't start at all, even with a perfect key.
Sometimes neither lock is at fault and the vehicle simply isn't recognising the key — that's immobiliser diagnostics territory.
Occasionally both are true: a tired key and a tired barrel, each making the other worse. Diagnosis sorts out which needs replacing.
Both of these arrived as "the car won't work" — and neither turned out to be a key problem.
Called out to a VW Beetle where the ignition wouldn't turn off and the key was stuck in the barrel. Matt diagnosed a faulty steering lock — a known weak point across the VW Group range — and replaced the unit on-site from stock carried in the van. Back on the road the same day, with no new key needed.
A Mercedes B-Class that wouldn't start at all. Rather than fitting a full replacement unit, Matt used the vehicle's own data to program a steering lock emulator, restoring ignition and saving the customer the cost of a complete parts swap. The diagnostic step is what made the cheaper route possible.
Exactly what the key and car are doing, which narrows the likely cause before Matt attends.
Barrel, steering lock, immobiliser or key — identified with diagnostic equipment, not guesswork.
Repair, programming or replacement, with the cost difference set out before anything is done.
Starting, steering release and key operation all checked before Matt leaves.
The Mercedes job above is a good example — the cheaper route only existed because the fault was properly diagnosed first.
This is the service where diagnosis saves the most money, because the gap between a programmed fix and a full unit replacement can be substantial.
Matt confirms the likely cost before attending, and explains the options once the fault is confirmed. No call-out fee either way.
Don't keep forcing the key. Repeatedly straining against a binding barrel is how a stuck key becomes a snapped one, turning one job into two.
Most locksmiths come from locks. Matt came from vehicle electronics.
20+ years on diagnostics, ECUs and control modules before specialising in keys.
The fault gets identified before anything is ordered or replaced.
Programming or emulation used when supported, rather than defaulting to a full unit.
No recovery to a garage for most jobs — it's done where the car is.
Key Genie is rated 5.0 on Google, across all the services Matt provides.
View the full profile on Google →Steering lock faults are particularly common across the VW Group range and certain Mercedes models.
View all brands →Usually the barrel rather than the key, especially if it's got gradually worse over time or if a spare key does the same thing. Matt confirms which before recommending anything.
No. If the electronic steering lock has failed, the car won't start regardless of how new or well-cut the key is. That's why diagnosis matters before spending on a key.
A motorised unit that physically locks the steering column and reports its status to the vehicle's security system. If it fails or reports incorrectly, the car typically refuses to start.
Often, yes. A worn barrel can sometimes be rebuilt or re-keyed rather than swapped for a new unit, which is usually the cheaper route.
For most jobs, no. Matt attends the vehicle where it is and carries out the diagnosis and repair on-site.
Commonly a worn barrel binding internally. Continuing to force it is how a stuck key becomes a snapped key, so it's worth getting looked at before that happens.
That depends entirely on your warranty terms and age of vehicle, which is a question for your provider. Matt can supply an invoice for any claim.
It varies by vehicle and whether the fix is programming or a replacement unit. Matt gives a realistic estimate once the fault is diagnosed.
Yes, the same diagnosis and repair approach applies to vans and commercial vehicles.
Related but different. The steering lock is a physical unit locking the column; the immobiliser is the system deciding whether a key is authorised. Matt checks both, since the symptoms overlap.
Get the fault diagnosed before buying a new key. Call 0118 469 3408.
