

Rated on TrustATrader · Fully mobile · No towing, no dealer wait
Mobile Seat Key Replacement in Bristol & Bath
Lost, broken or locked out of your Seat? We come to you across Bristol, Bath & South Gloucestershire — keys cut and programmed with dealer-level kit, guaranteed.
- Regain entry into your Seat when keys are locked inside
- Replacement Seat keys - Emergency roadside service for lost, stolen or broken key replacement
- Seat Key Programming
- Convenient mobile service for spare Seat keys
4.99 Trust-a-Trader · No obligation
The Seat Key Services We Offer
Seat Vehicle Entry?
If you have locked your keys inside your Seat, please call us and ask for an emergency service. We use non destructive means to gain access to your vehicle
Vehicle entryLost Your Seat Keys?
If you have lost all the keys for your Seat, don’t panic. At Lock City, we can supply and programme new keys at the roadside for most years of Seat models. We can come out to you at the roadside, so no need for towing, or lengthy delays at the dealer.
Lost key helpKey Programming for your Seat
Using the very latest in key coding technology, we can programme keys from our mobile workshop.
Key programmingNeed Spare Seat Keys?
Just need a spare key for your Seat? We can come out to you at home or your workplace for a fast and convenient service.
Spare keysAccess Your Seat
Regain Entry Into Your Seat
Whether you drive a Leon or an Ibiza, or an Ateca or Arona SUV, a lost, stolen or snapped SEAT key brings everything to a halt — and a modern SEAT is not a car you can get a key cut for at a kiosk.
A main dealer will typically want the car recovered (a SEAT with no coded key is immobilised), an appointment days away, and a bill stacking the key, the programming and the transport together. A general locksmith usually cannot help: since the MQB platform arrived, SEAT keys carry component security — Volkswagen Group calls it Komponentenschutz — so a blank that has not been married to your exact car with dealer-level data will open the door but never start the engine. It is genuinely not a cheap copy.
Lock City is a mobile Volkswagen Group specialist. We come to you with the dealer-level software, the correct HU66 blanks and the component-security data your SEAT needs, cut and code the key at the roadside and guarantee it — no towing, no dealer wait. Call 07967 097 899, Monday to Friday, 8am–5:30pm.
Know Your Seat Key
Seat Key Systems Explained
SEAT’s line-up quietly split in two: the sporty models became Cupra — now a separate marque in its own right — while SEAT itself covers the small cars and family SUVs. The keys are pure Volkswagen Group underneath, but which MQB variant your SEAT uses decides whether it’s a quick roadside job or a dealer-level one:
The blade: HU66
- Almost every modern SEAT uses the HU66 internal-cut blade (newer cars use a higher-security HU66 variant), cut on a Lishi HU66. A worn flip-key spring is the everyday SEAT repair — we re-shell and transfer the electronics rather than sell a whole new coded key.
Two MQB variants: small-car vs full
- Ibiza (6F, 2017-on) and Arona (2017-on): sit on MQB-A0, the small-car version of the platform, with IMMO5 component protection (Komponentenschutz) and Megamos AES / Hitag AES chips.
- Leon (from 2013), Ateca (2016-on) and the seven-seat Tarraco (2018-on): use the full MQB platform — the same component-security method, so a new key needs dealer-level immo access a generic cutter can’t provide.
- Pre-MQB SEAT (older Leon Mk2, Ibiza 6J): Megamos/Hitag2 (ID48), OBD-programmable at the roadside — the straightforward VAG job.
FR, Cupra and keyless
- FR trims: SEAT’s sporty FR grade usually adds KESSY keyless-go — a proximity smart key that follows the same all-keys-lost path as any keyless MQB car.
- The Cupra split: the old Leon Cupra hot hatch is now a separate marque (Cupra Leon, Formentor, Ateca), but the key architecture is identical VAG tech — so we key a Cupra exactly as we would the SEAT it grew from.
- All-keys-lost: with every key gone we need the full security/component data, so it takes longer than a spare — but we still handle the vast majority at the roadside.
Note: the pre-MQB/MQB split and the MQB-A0-vs-full-MQB distinction vary by model and build date [verify against your VIN]. Give us your registration and we’ll confirm the key type, chip and whether it’s a roadside or dealer-level job before we set off — no fabricated prices.
Previous Customers



Keys of Happy Seat Owners




What Our Customers Say
Excellent experience. Great communication, efficient timing, good price, accommodating & a very warm and friendly service. Would definitely recommend!
Great service today from Barry, the 4th locksmith/key technician to have a go at accessing my car after the keys were locked in the boot. Almost resigned to smashing the window, but he managed to access the car after 2 hours in the wind and rain, with a broken mechanism inside the lock, confirmed by the others who attempted the pick, brilliant stuff.
I was in a real panic, having locked my keys in my boot. Delighted with the efficient and effective service from this company. Had my keys back in my hand in under 5 minutes. Strongly recommend
Bought a new car which only had one key. These guys came out and created a second one quickly and inexpensively. Way cheaper than going to the main dealer and the only people in Bristol who could do it for the Audi A1 I have. Brilliant service.
Locked my keys in my car so Called at 9:45 and was out by 11. Very quick in my eyes considering it wasn’t a booked appointment. Came and unlocked my car in longer than 5 minutes!
Amazing service! I got an email response within minutes on a Sunday night. Arrived as arranged 8:30 next morning and had me back on the road within 30 mins for a very reasonable price. Highly recommended.
Brilliant service and at a reasonable cost highly recommended using this company.
Proof, not stock photos
Recent Seat work
Real Seat keys we've cut and coded across Bristol, Bath & the surrounding towns. Tap through to the model.
Frequently Asked Questions
Can SEAT keys with advanced security features be replaced?
Yes, we’re equipped to replace SEAT keys across the range, including those with advanced security and encryption, such as the Leon or Ibiza models featuring keyless start.
What should I provide for a SEAT key replacement service?
Having your SEAT’s model, year, and any specific details about your key or locking system ready when you contact us will help us to assist you more efficiently.
How quickly can I receive a replacement key for my SEAT vehicle?
Our aim is to provide same-day service for SEAT key replacements. The timeframe may vary depending on your specific model and the key type needed.
Is it more costly to replace a key for newer SEAT models?
The cost of replacement can vary based on the complexity of the key’s technology. We strive to offer competitive pricing for all SEAT models, regardless of their manufacturing year.
If my SEAT key was stolen, what steps should I take?
If you suspect your SEAT key was stolen, it’s important to act quickly. Contact us for immediate assistance with replacing your key, and consider having your vehicle’s locks reprogrammed to prevent unauthorized access.
Testimonials







