DeonTechnics

Car Alarm

Car alarms for classic cars, youngtimers and special vehicles

An alarm system in a classic or special car has to do two things: protect reliably and leave the vehicle alone. Deon Technics examines what is currently installed, what it does and what makes sense both technically and financially.

Where it usually starts

Most calls don't start with "I want a new alarm", but with a system that's behaving strangely. The alarm blares on a quiet Sunday morning, the remote works only now and then, or the car suddenly refuses to start.

  • The alarm goes off for no apparent reason
  • The remote control doesn't respond, or does so erratically
  • The system arms or disarms itself
  • The central locking no longer does what it's supposed to
  • Nobody remembers which make or type of alarm was ever fitted

Find out first, decide afterwards

Before any parts are ordered or replaced, the existing system is mapped out: which module sits where, how it's connected, which sensors are active and where the original wiring has been altered. Often the installation itself already reveals where the problem lies.

That leads to honest advice: repair where that makes sense, adjust where that's enough, or replace when an outdated module keeps putting a strain on the rest of the vehicle.

Possible solutions

  • Repair of wiring, contacts, earth points and sensors
  • Replacement of an outdated or faulty alarm module
  • New installation with a system suited to the vehicle and how it's used
  • Complete removal of an old system with restoration of the original wiring
  • Combination with a vehicle tracking system for extra follow-up

Why specialist knowledge makes the difference here

In a modern car, an alarm is a matter of the right interface. In a classic car or youngtimer that interface usually doesn't exist. There's no CAN bus to read, the wiring is decades old, and several hands have already worked on the car.

That's when it comes down to understanding how the vehicle is built: which circuits are switched, where voltage drops out, what modifications were made in the past, and which interventions need to stay reversible.

Frequently asked questions

Questions about this service

Ready to have this checked out?

Tell us which vehicle you have, exactly what's happening and where the car is. You'll get honest advice on what's technically and economically sensible.

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