Key turns but won't start? Transponder coding on site.
If your key turns the ignition but the engine will not fire, the problem is usually the transponder chip talking to the immobiliser, not the engine. We diagnose it properly, then either clone the existing chip or programme a fresh transponder to the vehicle so the immobiliser recognises the key again.
Instant car key quote
Fixed price · Pay on completion · No call-out charge · 2 year warranty
What do you need?
Tap your situation, we'll do the rest.
James in Reading got a quote 4 min ago
How the job actually runs.
- 01Diagnose whether the fault is the chip, the aerial ring or the immobiliser.
- 02Confirm a fixed price for the fix, not a vague hourly rate.
- 03Clone the chip or programme a new transponder to your car.
- 04Test repeated cold starts before handing the key back.
Included as standard.
- Immobiliser fault diagnosis included in the quote
- Chip cloning where the original key is available
- Fresh transponder programming where it is not
- Works across the vast majority of UK makes and models
What changes the price
- Clone versus full programme
- Whether the aerial ring or ignition barrel also needs work
- Vehicle age and immobiliser generation
Sorted in three steps.
Get your quote
Answer four quick questions, or call, and we come back with a fixed price in minutes.
We come to you
A fully-tooled mobile locksmith at your car, whether home, work or roadside, day or night.
Keys cut & coded
Fresh keys programmed on the spot. You drive away, we clear up. Job done.
What drivers say about us.
Absolutley brilliant. Turned up on time and sorted a new key for my BMW. Highly recomend.
Transponder & chip keys across the South East.
Mobile service, so we come to your home, work or the roadside, day or night.
Transponder & chip keys: your questions answered.
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Fixed price agreed before we set off. Call or WhatsApp and we'll be with you fast.
No call-out fee · No success, no charge