If you're comparing quotes across Essex, the actual time on site is one of the most under-explained parts of the process. Here's what a typical appointment looks like from start to finish.
The short answer: 1-2 hours
Most Scorpion X CAN BUS immobiliser fits take between one and two hours, done entirely at your home or workplace anywhere in Essex. The exact time depends on the vehicle's wiring layout and how accessible the CAN BUS connection point is behind the dashboard.
- Arrival & car check (5-10 mins) — we confirm the vehicle, check the wiring is as expected, and talk through where the unit will sit.
- Trim removal & access (15-20 mins) — the relevant dash or footwell trim is carefully removed to reach the CAN BUS wiring.
- Fitting the unit (30-50 mins) — the Scorpion X is wired in and hidden completely out of sight, with no visible box or LED.
- Testing & PIN setup (15-20 mins) — we test the immobiliser fires correctly, then walk you through setting and using your own PIN sequence.
- Trim refit & handover (10 mins) — everything is put back exactly as it was, with your Thatcham certificate handed over on the spot.
Booking a Scorpion S5 tracker alongside the immobiliser typically adds 20-30 minutes to the appointment, since the tracker also needs a GPS antenna position confirmed.
What can make it take longer
A handful of factors occasionally push a fit toward the two-hour mark: aftermarket alarms or trackers already wired in that need to be worked around, unusually tight dashboard access on some smaller models, or a vehicle with non-standard wiring from a previous repair. None of these are common, but our engineers carry the tools to handle them on the day rather than needing a second visit.
Why we don't rush it
A hidden immobiliser is only as good as its installation. Rushing the CAN BUS connection or skipping a proper test cycle is exactly how a badly-fitted unit ends up with intermittent faults months later. Every fit across Essex — whether in Chelmsford, Colchester or a village in between — gets the same unhurried process and the same final test before we leave.
Book a Fitting Slot That Suits You
1-2 hours, at your home or workplace, anywhere in Essex.
Get My Free Quote →Frequently Asked Questions
Can I wait with the car while it's fitted?
Yes, most Essex customers do exactly that — you don't need to leave the vehicle with us or arrange separate transport.
Does fitting time vary by car make?
Slightly. Vehicles with more complex CAN BUS wiring, like some German makes, can take toward the upper end of the 1-2 hour window. We'll give you a realistic estimate when you book.
Do you need to remove any interior trim permanently?
Trim is removed carefully during fitting and refitted exactly as it was — there's no visible sign afterwards that any work has been done.